Form 10-Q - Quarterly report [Sections 13 or 15(d)]

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)


☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024


☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number: 001-40988

Sonendo, Inc.

(Exact Name of Registrant as Specified in its Charter)


Delaware	20-5041718
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
26061 Merit Circle, Suite 102 Laguna Hills, CA	92653
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (949) 766-3636

Securities registered pursuant to Section 12(b) of the Act:

    Title of each class

    Trading
Symbol(s)

    Name of each exchange on which registered

    Common stock, par value $0.001 per share

    SONX

    OTC Markets

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.


Large accelerated filer	☐	Accelerated filer
Non-accelerated filer	☒	Smaller reporting company	☒
		Emerging growth company	☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of May 2, 2024, the registrant had 70,455,399 shares of common stock, $0.001 par value per share, outstanding.

Table of Contents


		Page
	Cautionary Note Regarding Forward-Looking Statements	1

PART I.	FINANCIAL INFORMATION	3

Item 1.	Financial Statements (Unaudited)	3
	Condensed Consolidated Balance Sheets	3
	Condensed Consolidated Statements of Operations and Comprehensive Loss	4
	Condensed Consolidated Statements of Stockholders’ Equity	5
	Condensed Consolidated Statements of Cash Flows	6
	Notes to Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	29
Item 4.	Controls and Procedures	29

PART II.	OTHER INFORMATION	31

Item 1.	Legal Proceedings	31
Item 1A.	Risk Factors	31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	31
Item 3.	Defaults Upon Senior Securities	31
Item 4.	Mine Safety Disclosures	31
Item 5.	Other Information	31
Item 6.	Exhibits	31
Signatures		34

Cautionary Note Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), that involve risks and uncertainties, including statements based on our current expectations, assumptions, estimates and projections about future events, our business, financial condition, results of operations and prospects, our industry and the regulatory environment in which we operate. Any statements contained herein that are not statements of historical facts may be deemed to be forward-looking statements. In some cases, you can identify forward-looking statements by terms such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “will,” “would” or the negative of those terms, or other comparable terms intended to identify statements about the future. The forward-looking statements included herein are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. These risks and uncertainties, all of which are difficult or impossible to predict accurately and many of which are beyond our control, include, but are not limited to those described in Item 1A. Risk Factors of this Quarterly Report on Form 10-Q, Item 1A. Risk Factors of our Annual Report on Form 10-K for fiscal year 2023 and in the filings we make with Securities and Exchange Commission (the “SEC”) from time to time.

•

We are an early-stage company with a history of significant net losses, we expect to continue to incur operating losses for the foreseeable future and we may not be able to achieve or sustain profitability.

•

Our common stock has been delisted from the New York Stock Exchange (“NYSE”), which may negatively impact our stockholders and the trading price and liquidity of our common stock.

•

Our revenue is primarily generated from sales of our GentleWave Console and the accompanying single-use procedure instruments (“PIs”) and we are therefore highly dependent on the success of these offerings.

•

Our future operating results may be difficult to predict and could fall below expectations or any guidance we may provide.

•

The terms of our credit agreement contain operating and financial covenants and place restrictions on our operating and financial flexibility.

•

We need additional funding to finance our planned operations, and may not be able to raise capital when needed.

•

The commercial success of our GentleWave System and the GentleWave Procedure will depend upon the degree of market acceptance of our products by dental practitioners, our ability to maintain strong working relationships with our existing clinicians and dental customers and our ability to increase penetration in existing markets and expand into adjacent markets.

•

We may provide inadequate training, fail to increase our sales and marketing capabilities or fail to develop and maintain broad brand awareness in a cost-effective manner.

•

We may not be able to obtain or maintain adequate levels of third party coverage and reimbursement.

•

We may not be able to achieve or maintain satisfactory pricing and margins for our products.

•

We may not be able to compete successfully.

•

We may be unable to develop or commercialize new products on a timely basis and our products may become obsolete.

•

We have limited experience manufacturing our products in large-scale commercial quantities and we face a number of manufacturing risks that may adversely affect our manufacturing abilities, which could delay, prevent or impair our growth.

•

We depend upon third-party suppliers, including contract manufacturers and single source suppliers, making us vulnerable to supply shortages and price fluctuations that could negatively affect our business, financial condition and results of operations.

•

Any changes in our shipping arrangements or damages or losses sustained from shipping could adversely affect our business, financial condition, results of operations and prospects.

•

Our operating expenses may substantially increase and our business and financial results will be adversely affected if we receive a significant number of warranty claims or our GentleWave Systems require significant amounts of service after sale.

•

We may encounter difficulties in managing our growth, forecasting demand and managing inventory.

•

Our internal computer systems or those used by our contractors or consultants, may fail or suffer security breaches, and such failure could negatively affect our business, financial condition and results of operations.

•

Natural or man-made disasters and other similar events may significantly disrupt our business, including by causing delays in production or an increase in costs, and negatively impact our business, financial condition and results of operations.

•

The sizes of the addressable markets for our GentleWave System have not been established with precision and our potential market opportunity may be smaller than we estimate and may decline.

•

We may incur substantial liabilities and other negative impacts on our business as a result of product liability lawsuits and we may not be able to obtain or maintain insurance to cover these and other risks.

•

Our insurance policies are expensive and protect us only from some business risks, which leaves us exposed to significant uninsured liabilities.

•

Our products and operations are subject to extensive government regulation and oversight in the United States.

•

Our ability to utilize our net operating loss carryforwards and research and development credit carryforwards may be limited.

•

We are highly dependent on our senior management team.

•

Our success depends on our ability to obtain and maintain our intellectual property.

•

The market price of our common stock may be volatile and an active trading market may not develop.

•

Anti-takeover provisions in our Certificate of Incorporation and Bylaws, as well as those under Delaware law could prevent or delay a change in control.

•

We are subject to additional risks and costs as a result of being a public company.

•

We maintain cash deposits in excess of federally insured limits. Adverse developments affecting financial institutions, including bank failures, could adversely affect our liquidity and financial performance.

We operate in a very competitive and rapidly changing environment. New risks emerge from time to time and it is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in, or implied by, any forward-looking statements.

The forward-looking statements included herein are based on current expectations of our management based on available information and are believed to be reasonable. In light of the significant risks and uncertainties inherent in the forward-looking statements included herein, the inclusion of such information should not be regarded as a representation by us or any other person that such results will be achieved. You are cautioned not to place undue reliance on the forward-looking statements included in this Quarterly Report on Form 10-Q, which speak only as of the date of this document. We do not intend, and undertake no obligation, to update or revise these forward-looking statements to reflect events or circumstances after the date of this document or to reflect the occurrence of unanticipated events, except as required by law.

PART I—FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)

SONENDO, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except par value and share data)


	March 31,			December 31,
	2024			2023
	(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	18,580		$	14,009
Short-term investments		15,009			32,773
Accounts receivable, net		4,176			4,790
Inventory		12,116			11,074
Prepaid expenses and other current assets		1,611			1,969
Current assets of discontinued operations		1,162			656
Total current assets		52,654			65,271
Property and equipment, net		767			461
Operating lease right-of-use assets		3,227			2,703
Other assets		127			128
Non-current assets of discontinued operations		—			9,597
Total assets	$	56,775		$	78,160
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	916		$	1,142
Accrued expenses		2,737			3,072
Accrued compensation		1,470			2,413
Operating lease liabilities		1,172			1,250
Current portion of term loan		10,800			24,900
Other current liabilities		1,786			1,844
Current liabilities of discontinued operations		73			700
Total current liabilities		18,954			35,321
Operating lease liabilities, net of current		1,888			1,423
Term loan, net of current		10,911			12,467
Other liabilities		491			530
Total liabilities		32,244			49,741
Commitments and contingencies (Note 8)
Stockholders’ equity:
Preferred stock, $0.001 par value; authorized —10,000,000 shares; issued and outstanding - none		—			—
Common stock, $0.001 par value; authorized — 500,000,000 shares; issued and outstanding— 70,449,873 shares as of March 31, 2024 and 63,547,467 shares as of December 31, 2023		70			64
Additional paid-in-capital		461,237			458,357
Accumulated other comprehensive loss		(1	)		11
Accumulated deficit		(436,775	)		(430,013	)
Total stockholders’ equity		24,531			28,419
Total liabilities and stockholders’ equity	$	56,775		$	78,160

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

SONENDO, INC.

CONDENSED CONSOLIDATED STATEMENTS OF

OPERATIONS AND COMPREHENSIVE LOSS

(unaudited)

(in thousands, except share and per share amounts)


	Three Months Ended March 31,
	2024			2023
Revenue, net	$	7,047		$	8,678
Cost of sales
Product and service		4,900			6,700
Impairment of long-lived assets		146			—
Total cost of sales		5,046			6,700
Gross profit		2,001			1,978
Operating expenses:
Selling, general and administrative		10,061			14,114
Research and development		2,189			2,927
Total operating expenses		12,250			17,041
Operating loss		(10,249	)		(15,063	)
Other expense, net:
Interest and financing costs, net		(1,940	)		(579	)
Loss before income tax expense		(12,189	)		(15,642	)
Income tax expense		—			—
Loss from continuing operations, net of tax		(12,189	)		(15,642	)
Income from discontinued operations, net of tax (Note 3)		5,427			271
Net loss	$	(6,762	)	$	(15,371	)

Other comprehensive income (net of tax):
Unrealized (loss) gain on short-term investments		(12	)		56
Comprehensive loss	$	(6,774	)	$	(15,315	)
Net loss per share from continuing operations – basic and diluted	$	(0.13	)	$	(0.16	)
Net income per share from discontinued operations – basic and diluted	$	0.06		$	0.00
Net loss per share – basic and diluted	$	(0.07	)	$	(0.16	)
Weighted-average shares outstanding – basic and diluted		94,822,835			93,391,444

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

SONENDO, INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(unaudited)

(in thousands, except shares amount)


	Common Stock				Additional			Accumulated						Total
					Paid-In			Other			Accumulated			Stockholders’
	Shares		Amount		Capital			Comprehensive Loss			Deficit			Equity
Balance at December 31, 2023		63,547,467	$	64	$	458,357		$	11		$	(430,013	)	$	28,419
Employee stock plans		790,524		—		(4	)		—			—			(4	)
Stock-based compensation		—		—		2,890			—			—			2,890
Exercise of pre-funded warrants		6,111,882		6		(6	)		—			—			—
Unrealized gain on short-term investments				—		—			(12	)		—			(12	)
Net loss				—		—			—			(6,762	)		(6,762	)
Balance at March 31, 2024		70,449,873	$	70	$	461,237		$	(1	)	$	(436,775	)	$	24,531


	Common Stock				Additional		Accumulated						Total
					Paid-In		Other			Accumulated			Stockholders’
	Shares		Amount		Capital		Comprehensive Loss			Deficit			Equity
Balance at December 31, 2022		49,974,281	$	50	$	451,060	$	(61	)	$	(369,094	)	$	81,955
Employee stock plans		216,105		—		—		—			—			—
Stock-based compensation		—		—		1,942		—			—			1,942
Exercise of pre-funded warrants		1,062,080		1		—		—			—			1
Unrealized gain on short-term investments		—		—		—		56			—			56
Net loss		—		—		—		—			(15,371	)		(15,371	)
Balance at March 31, 2023		51,252,466		51		453,002		(5	)		(384,465	)		68,583

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

SONENDO, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

(in thousands)


	Three Months Ended March 31,
	2024			2023
Cash flows from operating activities:
Net loss	$	(6,762	)	$	(15,371	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation		64			339
Amortization of intangible assets		51			166
Amortization of right-of-use lease assets		322			325
Impairment of long-lived assets		146			—
Stock-based compensation		2,890			1,942
Amortization of debt issuance costs		1,144			146
Accretion of available for sale securities, net		(264	)		(634	)
Gain on sale of discontinued operations		(5,703	)		—
Changes in operating assets and liabilities:
Accounts receivable, net		906			(634	)
Inventory		(1,403	)		(561	)
Prepaid expenses and other assets		812			(694	)
Accounts payable		(260	)		896
Accrued expenses and other liabilities		(1,492	)		(1,614	)
Deferred revenue		128			(95	)
Accrued compensation		(1,268	)		(1,187	)
Net cash used in operating activities		(10,689	)		(16,976	)
Cash flows from investing activities:
Purchases of available-for-sale securities		—			(15,125	)
Proceeds from maturities of available-for-sale securities		18,015			27,300
Purchases of property and equipment		(146	)		(210	)
Proceeds from sale of discontinued operations, net		14,204			—
Net cash provided by investing activities		32,073			11,965
Financing activities:
Principal repayments on term loan		(16,800	)		—
Tax paid on vested stock awards under employee stock plan		(4	)		—
Principal repayments on finance lease		(9	)		(7	)
Proceeds from exercise of pre-funded warrants		—			1
Net cash used in financing activities		(16,813	)		(6	)
Net increase (decrease) in cash and cash equivalents		4,571			(5,017	)
Cash and cash equivalents at beginning of period		14,009			17,665
Cash and cash equivalents at end of period	$	18,580		$	12,648

Supplemental disclosures of cash flow information:
Cash paid for:
Interest	$	1,300		$	1,387
Supplemental schedule of non-cash investing and financing activities:
Operating lease right-of-use assets obtained in exchange for lease liabilities	$	826		$	1,802

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

SONENDO, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1. Organization and Basis of Presentation

Description of Business

Sonendo, Inc. (the “Company” or “we” and “our”) was incorporated in June 2006 pursuant to the laws of the State of Delaware under the name Dentatek Corporation. In March 2011, the Company changed its name to Sonendo, Inc. The Company is a medical technology company that has developed and is commercializing the GentleWave System to treat tooth decay. The Company’s principal market is the United States (“U.S.”). The Company’s products include the GentleWave System, which is cleared by the U.S. Food and Drug Administration (the “FDA”) for sale in the U.S. and approved by Health Canada in Canada, along with the system’s sterilized, single-use procedure instruments (“PIs”).

Basis of Presentation

The Company’s financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and pursuant to Form 10-Q and Article 10 of SEC Regulation S-X on a consistent basis with the Company’s annual financial statements and in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, considered necessary for a fair statement of the Company’s financial information. Accordingly, the accompanying unaudited condensed consolidated financial statements do not include all of the information and notes required by GAAP for complete financial statements. The condensed consolidated balance sheet as of December 31, 2023 included herein was derived from the audited financial statements as of that date. The results of operations included in these condensed consolidated financial statements are not necessarily indicative of the results of operations to be expected for the year, any other interim period, or for any other future annual or interim period. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed, consolidated, or omitted. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023 filed with the SEC on March 11, 2024.

As discussed in Note 3, “Discontinued Operations”, on March 1, 2024, the Company divested its software segment by selling substantially all assets and liabilities of TDO Software, Inc, its wholly owned subsidiary. The sale met the criteria to be accounted for as a discontinued operation as required by Accounting Standards Codification (“ASC”) 205-20. Accordingly, the financial results of the software business are reported as discontinued operations in the accompanying unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss for all periods presented. The Company's Condensed Consolidated Statements of Cash Flows include the financial results of the software business for the three months ended March 31, 2024 and 2023. All amounts and disclosure included in the Notes to condensed consolidated financial statements reflect only the Company's continuing operations unless otherwise noted.

Liquidity and Going Concern

On September 27, 2022, the Company completed a private placement (the “Private Placement”), issuing an aggregate of approximately 23.0 million shares of its common stock at a purchase price of $0.95 per share and pre-funded warrants to purchase an aggregate of 43.3 million shares of common stock at a purchase price of $0.949 per pre-funded warrant. The pre-funded warrants have an exercise price of $0.001 per share of common stock, are immediately exercisable and will remain exercisable until exercised in full. The aggregate net proceeds from the Private Placement, after deducting placement agent fees and other offering expenses, were $59.0 million. See Note 6, Stockholders’ Equity, for additional information.

As of March 31, 2024, the Company had cash and cash equivalents and short-term investments of $33.6 million and $23.2 million in principal outstanding under its term loan facility.

The Company has a limited operating history, and the revenue and income potential of the Company’s business and market are unproven. The Company has experienced net losses and negative cash flows from operations since its inception and as of March 31, 2024 had an accumulated deficit of $436.8 million. During the three months ended March 31, 2024, the Company incurred net losses of $12.2 million, used $10.7 million of cash and cash equivalents in its continuing operations, and recognized a gain of $5.7 million from sale of discontinued operations. The Company will continue to incur significant costs and expenses related to its ongoing operations until it gains market acceptance of its products and achieves a level of revenues adequate to support its operations.

The accompanying unaudited condensed consolidated financial statements have been prepared assuming the Company will continue as a going concern, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The unaudited condensed consolidated financial statements do not include any adjustments relating to the recoverability and classification of recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of this uncertainty.

The Company’s ability to continue as a going concern depends on its ability to continue to commercialize its products, achieve and maintain profitable operations, as well as the adherence to conditions of the outstanding term loan as amended in March 2024 (see Note 10). Without additional financing, the Company will have insufficient liquidity to achieve further commercialization of our products and maintain compliance with our loan covenants. Due to these conditions, there is substantial doubt about the Company’s ability to continue as a going concern and, therefore, it may be unable to realize its assets and discharge its liabilities in the normal course of business.

The Company will require additional financing in order to fund its future expected negative cash flows. Due to its failure to comply with the continued listing standards set forth in the NYSE’s Listed Company Manual, our common stock was suspended from trading on the NYSE effective at the opening of business Eastern Standard Time on November 22, 2023. The Company commenced trading on the OTCQX on the same day. In April 2024, the Company withdrew its request to appeal and the NYSE and our common stock has been delisted from the NYSE, which may negatively impact the Company’s stockholders and the trading price and liquidity of its common stock. Over-the-counter markets are more limited than the NYSE, and it is likely that there will be significantly less liquidity in the trading of the Company’s common stock. The delisting of the Company’s common stock from the NYSE could have material adverse effects on its business, financial condition and results of operations.

The Company has active plans to mitigate these conditions. Specifically, the Company has been taking steps and plans to further reduce negative cash flow through operating expense reductions. The Company is evaluating multiple opportunities, which may include soliciting external investment or seeking strategic partnerships. Additionally, as detailed in Note 3 and Note 10, the Company closed on the sale of TDO Software, Inc. (“TDO”) and renegotiated its covenant requirements with its lender, among other terms, which resulted in the Company remitting $15 million of principal payments on its outstanding borrowings. Its plans are subject to inherent risks and uncertainties and there can be no assurance that its plans can be effectively implemented and, therefore, that the conditions can be effectively mitigated.

Effects of the Macroeconomic Environment

The Company’s unaudited condensed consolidated financial statements as of and for the three months ended March 31, 2024 reflect the Company’s estimates of the impact of the macroeconomic environment, including the impact of inflation and higher interest rates. The duration and the scope of these conditions cannot be predicted; therefore, the extent to which these conditions will directly or indirectly impact the Company’s business, results of operations and financial condition, is uncertain. The Company is not aware of any specific event or circumstance that would require an update to its estimates, judgments and assumptions or a revision of the carrying value of the Company’s assets or liabilities as of the date of this filing.

Operating Segments

The Company previously had two operating and reportable segments: Product and Software. Following the divestiture of the software business on March 1, 2024, there were no substantial assets or operations of the software segment. The software segment was reported as Discontinued Operations as of March 31, 2024, and is presented as such for all periods in this report.

Emerging Growth Company Status

The Company is an emerging growth company, as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued subsequent to the enactment of the JOBS Act until such time as those standards apply to private companies. The Company has elected to avail itself of this exemption and, therefore, for new or revised accounting standards applicable to public companies, the Company will be subject to an extended transition period until those standards would otherwise apply to private companies.

2. Summary Accounting Policies and Recent Accounting Pronouncements

The accounting policies followed by the Company are set forth in Part II, Item 8, Note 2, Summary of Accounting Policies, of the Notes to Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make informed estimates, judgements and assumptions that affect the reported amounts in the unaudited condensed consolidated financial statements and disclosures in the accompanying notes, including estimates of probable losses and expenses, as of the date of the accompanying unaudited condensed consolidated financial statements. Management considers many factors in selecting appropriate financial accounting policies and in developing the estimates and assumptions that are used in the preparation of these unaudited condensed consolidated financial statements. Management must apply significant judgment in this process. In addition, other factors may affect estimates, including the expected business and operational changes, the sensitivity and volatility associated with the assumptions used in developing estimates, and whether historical trends are expected to be representative of future trends. The estimation process often may yield a range of potentially reasonable estimates of the ultimate future outcomes, and management must select an amount that falls within that range of reasonable estimates. Actual results could differ materially from the estimates and assumptions used in the preparation of the accompanying unaudited condensed consolidated financial statements under different assumptions or conditions.

Inventory

Inventory consists of finished products, work-in-process and raw materials and is valued at the lower of cost or net realizable value. Cost may include materials, labor and manufacturing overhead. Cost is determined by the first in, first out inventory method. The carrying value of inventory is reviewed for potential impairment whenever indicators suggest that the cost of inventory exceeds the carrying value and management adjusts the inventory to its net realizable value. The Company also periodically evaluates inventory for estimated losses from excess quantities and obsolescence and writes down the cost of inventory to net realizable value at the time such determinations are made. Net realizable value is determined using the estimated selling price, in the ordinary course of business, less estimated costs of completion and disposal.

Revenue Recognition

Contracts with Customers

The Company recognizes revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods and services. Specifically, the Company applies the following five core principles to recognize revenue: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when, or as, the Company satisfies a performance obligation.

Revenue recorded from continuing operations is generated from sales of the GentleWave Console and related PIs and accessories and services on its GentleWave Console. The Company’s products are sold primarily in the United States and Canada directly to customers through its field sales force.

Performance Obligations

The Company’s performance obligations from continuing operations primarily arise from the manufacture and delivery of the GentleWave System, related PIs and accessories, and to a lesser extent, performance of service contracts on its GentleWave Consoles. Payment terms are typically on open credit terms consistent with industry practice and do not have significant financing components. Consideration may be variable based on volume.

The Company considers the individual deliverables in its product offering as separate performance obligations and assesses whether each promised good or service is distinct. The total contract transaction price is determined based on the consideration expected to be received, based on the stated value in contractual arrangements or the estimated cash to be collected in no-contracted arrangements, and is allocated to the identified performance obligations based upon the relative standalone selling prices of the performance obligations. The stand-alone selling price is based on an observable price offered to other comparable customers. The Company estimates the standalone selling price using the market assessment approach considering market conditions and entity-specific factors including, but not limited to, features and functionality of the products and services, geographies, type of customer and market conditions. The Company regularly reviews and updates standalone selling prices as necessary. The consideration the Company receives in exchange for its goods or services is only recognized when it is probable that a significant reversal will not occur. The consideration to which the Company expects to be entitled includes a stated list price, less various forms of variable consideration.

The Company estimates related variable consideration at the point of sale, including discounts, product returns, refunds, and other similar obligations.

Revenue is recognized over time when the customer simultaneously receives and consumes the benefits provided by the Company’s performance. Revenue is recognized at a point in time if the criteria for recognizing revenue over time are not met, and the Company has transferred control of the goods to the customer.

Product revenue is recognized at a point in time when the Company has transferred control to the customer, which is generally when title of the goods transfers to the customer. Sales of extended service contracts are recorded as deferred revenue until such time as the standard warranty expires, which is generally up to two years from the date of sale. Service contract revenue is recognized on a straight-line basis over time consistent with the life of the related service contract in proportion to the costs incurred in fulfilling performance obligations under the service contract.

The Company generally does not experience significant returns. If necessary, a provision is recorded for estimated sales returns and allowances and is deducted from gross product revenue to arrive at net product revenue in the period the related revenue is recorded. These estimates are based on historical sales returns and allowances and other known factors. Actual returns and claims in any future period are inherently uncertain and thus may differ from these estimates. If actual or expected future returns and claims are significantly greater or lower than the reserves established, a reduction or increase to revenue will be recorded in the period in which such a determination is made.

All non-income government-assessed taxes (sales and use taxes) collected from the Company’s customers and remitted to governmental agencies are recorded in accrued expenses until they are remitted to the government agency.

The Company has adopted the practical expedient permitting the direct expensing of costs incurred to obtain contracts where the amortization of such costs would occur over one year or less, and it applied to substantially all the Company’s contracts.

Contract liabilities

The Company recognizes a contract liability when a customer pays for goods or services for which the Company has not yet transferred control. The balances of the Company’s contract liabilities are as follows:


	March 31,		December 31,
	2024		2023
	(in thousands)
Total contract liabilities - extended service contracts	$	1,048	$	920
Less: long-term portion		281		302
Contract liabilities – current	$	767	$	618

Contract liabilities are included within other current liabilities and other long-term liabilities in the accompanying unaudited condensed consolidated balance sheets. Revenue recognized during the three months ended March 31, 2024 and 2023 that was included in the contract liability balance as of December 31, 2023 and 2022 was $0.2 million and $0.1 million, respectively.

Disaggregation of revenue

The Company disaggregates revenue from contracts with customers by segment and by the timing of when goods and services are transferred, which depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected.

The following table provides information regarding disaggregated revenues and the timing of when goods and services are transferred:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Product revenue recognized at a point in time	$	6,730	$	8,524
Service revenue recognized over time		317		154
Total revenue	$	7,047	$	8,678

No individual customer accounted for more than 10% of sales for the three months ended March 31, 2024 and 2023.

Warranty Reserve

The Company provides a standard warranty on its GentleWave Systems for a specified period of time. For the three months ended March 31, 2024 and 2023, GentleWave Systems sold were covered by the warranty for a period of up to two years from the date of sale. Estimated warranty costs are recorded as a liability at the time of delivery with a corresponding provision to cost of sales. Warranty accruals are estimated based on the current product costs, the Company’s historical experience, management’s expectations

of future conditions and standard maintenance schedules. The Company evaluates this reserve on a regular basis and makes adjustments as necessary.

The following table provides a reconciliation of the change in estimated warranty liabilities for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,
	2024			2023
	(in thousands)
Balance at beginning of period	$	1,269		$	1,930
Provision for warranties issued		200			195
Warranty costs incurred		(427	)		(368	)
Balance at end of period	$	1,042		$	1,757
Current portion	$	980		$	1,335
Non-current portion		62			422
Total	$	1,042		$	1,757

The warranty liabilities, current and non-current, are included in other current liabilities and other liabilities, respectively, on the unaudited condensed consolidated balance sheets.

Recent Accounting Pronouncements

Changes to GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates (“ASU”). ASUs not listed below were assessed and determined not to be applicable or are expected to have minimal impact on the Company’s unaudited condensed consolidated financial statements.

Accounting Pronouncement Recently Adopted

None.

3. Discontinued Operations

On March 1, 2024, the Company entered into an Asset Purchase Agreement by and among TDO, Valsoft Corporation Inc., a Quebec corporation, and Aspire USA LLC, a Delaware limited liability company and affiliate of Valsoft (collectively “Valsoft”), pursuant to which TDO agreed to sell to Valsoft substantially all the assets and liabilities relating to the Company’s software segment. As consideration for the transaction, Valsoft agreed to pay TDO approximately $16.0 million, with $15.0 million paid on March 1, 2024 and $1.0 million due in approximately 12 months. In connection with the transaction, Valsoft agreed to make offers of employment to certain employees of the Business on terms that are comparable to those currently in effect for such employees. The Asset Purchase Agreement contains certain representations, warranties and covenants of each of TDO and Valsoft. Each of TDO and the Valsoft has agreed to indemnify the other for certain losses arising out of breaches of representations and covenants and for certain losses arising out of retained liabilities or assumed liabilities relating to the TDO business, as applicable, subject to customary limitations.

The divestiture met the criteria to be accounted for as a discontinued operation as of March 31, 2024. Accordingly, the operating results of the continued and discontinued operations for the three months ended March 31, 2024 are presented in the Condensed Consolidated Statements of Operations and Comprehensive Loss within income from discontinued operations as follows:


	Three Months Ended March 31,
	2024			2023
	(in thousands)
Revenue	$	1,389		$	2,046
Cost of sales		510			678
Gross profit		879			1,368
Operating expenses:
Selling, general and administrative		679			552
Research and development		476			567
(Loss) income from discontinued operations, net of tax		(276	)		249
Other income		—			22
Gain on sale of discontinued operations, net of tax		5,703			—
Net income from discontinued operations	$	5,427		$	271

Software is licensed via delivery to the customer or via a service arrangement under which cloud-based access is provided on a subscription basis (software-as-a-service). When a fixed up-front license fee is received in exchange for the delivery of software,

revenue is recognized at the point in time when the delivery of the software has occurred. When software is licensed on a subscription basis, revenue is recognized over the respective license period.

The following table presented assets and liabilities of discontinued operations as of March 31, 2024 and December 31, 2023:


	March 31, 2024		December 31, 2023
	(in thousands)
Current assets:	$	1,162	$	656
Non-current assets:
Intangible assets, net		—		661
Goodwill		—		8,454
Other		—		482
Total assets of discontinued operations	$	1,162	$	10,253

Current liabilities:
Accounts payable		—		34
Accrued expenses		53		194
Accrued compensation		20		345
Operating lease liabilities		—		127
Total liabilities of discontinued operations	$	73	$	700

Depreciation and amortization of long-lived assets, stock-based compensation expense and capital expenditures of discontinued operations were not material for each of the three-months ended March 31, 2024 and 2023.

4. Balance Sheet Components

Inventory

Inventory consisted of the following:


	March 31,		December 31,
	2024		2023
	(in thousands)
Raw materials	$	6,534	$	6,450
Work in process		338		278
Finished goods		5,244		4,346
Total inventory	$	12,116	$	11,074

The balance of the reserve of excess and obsolete inventory was 0.8 million for each of the periods ending March 31, 2024 and December 31, 2023.

5. Fair Value of Financial Instruments

The Company applies fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The Company’s financial instruments consist principally of cash, cash equivalents, short-term investments, accounts receivable, accounts payable, operating lease liabilities, warrant liabilities and a term loan. Fair value is measured as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. A fair value measurement assumes that the transaction to sell the asset or transfer the liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market. Valuation techniques that are consistent with the market, income or cost approach are used to measure fair value.

The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels:

Level 1 – Observable inputs such as unadjusted quoted prices in active markets that are accessible at the measurement date for identical unrestricted assets or liabilities the Company has the ability to access.

Level 2 – Inputs (other than quoted prices included within Level 1) that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

Level 3 – Unobservable inputs that are significant to the fair value measurement and reflect the reporting entity’s use of significant management judgment and assumptions when there is little or no market data. Level 3 assets and liabilities include those whose fair value measurements are determined using pricing models, discounted cash flow methodologies or similar

valuation techniques and significant management judgment or estimation. These include the Black-Scholes option-pricing model which uses inputs such as expected volatility, risk-free interest rate and expected term to determine fair market valuation.

Assets and liabilities are classified based on the lowest level of input that is significant to the fair value measurements. The Company reviews the fair value hierarchy classification at each reporting date. Changes in the ability to observe valuation inputs may result in a reclassification of levels for certain assets or liabilities within the fair value hierarchy. The Company did not have any transfers of assets and liabilities between the levels of the fair value measurement hierarchy during the periods presented.

The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable, and certain accrued expenses approximate fair value due to the short-term nature of these items. Accordingly, the Company estimates that the recorded amounts approximate fair market value.

The following table provides the assets and liabilities measured at fair value on a recurring basis and indicate the fair value hierarchy of the valuation techniques utilized by the Company to determine such value at March 31, 2024 and December 31, 2023:


	March 31, 2024
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	17,671	$	17,671	$	—	$	—
Total cash equivalents at fair value		17,671		17,671		—		—
Short-term investments:
U.S. treasury securities		5,697		5,697		—		—
Commercial paper and corporate bonds		9,312		—		9,312		—
Total short-term investments at fair value		15,009		5,697		9,312		—
Total assets at fair value	$	32,680	$	23,368	$	9,312	$	—


	March 31, 2024
	Fair Value		Cost Basis		Amounts Recognized in Accumulated Other Comprehensive Loss
					Unrealized Gains		Unrealized Losses
	(in thousands)
Available-for-sale securities:
U.S. treasury securities	$	5,697	$	5,697	$	—	$	—
Commercial paper and corporate bonds	$	9,312		9,313		1		(2	)
Total available-for-sale securities at fair value	$	15,009	$	15,010	$	1	$	(2	)


	December 31, 2023
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	10,761	$	10,761	$	—	$	—
Corporate Bonds		1,827		—		1,827		—
Total cash equivalents at fair value		12,588		10,761		1,827		—
Short-term investments:
U.S. treasury securities		14,826		14,826		—		—
Commercial paper and corporate bonds		13,204		—		13,204		—
U.S. government agency bonds		4,743		—		4,743		—
Total short-term investments at fair value		32,773		14,826		17,947		—
Total assets at fair value	$	45,361	$	25,587	$	19,774	$	—


	December 31, 2023
	Fair Value		Cost Basis		Amounts Recognized in Accumulated Other Comprehensive Loss
					Unrealized Gains		Unrealized Losses
	(in thousands)
Available-for-sale securities:
U.S. Treasury securities	$	14,826	$	14,820	$	6	$	—
Commercial paper and corporate bonds	$	13,204	$	13,197	$	9	$	(2	)
U.S. government agency bonds		4,743		4,745		—		(2	)
Total available-for-sale securities at fair value	$	32,773	$	32,762	$	15	$	(4	)

Money market funds and U.S. Treasury securities are highly liquid investments and are actively traded. The pricing information on these investment instruments is readily available and can be independently validated as of the measurement date. This approach results in the classification of these securities as Level 1 of the fair value hierarchy.

Commercial paper, U.S. government agency bonds and corporate bonds are measured at fair value using Level 2 inputs. The Company reviews trading activity and pricing for these investments as of each measurement date. When sufficient quoted pricing for identical securities is not available, the Company uses market pricing and other observable market inputs for similar securities obtained from third party data providers. These inputs represent quoted prices for similar assets in active markets or these inputs have been derived from observable market data. This approach results in the classification of these securities as Level 2 of the fair value hierarchy.

6. Stockholders’ Equity

Warrants

In April 2022, the Company amended its term loan and the warrants previously issued to Perceptive Credit Holdings III, LP (“Perceptive”) and certain of its affiliates to purchase an aggregate of 304,105 shares of its common stock. Such warrants were amended solely to reduce the exercise price of the warrants to $12.00 per share.

Warrants issued and outstanding at March 31, 2024 and December 31, 2023 included 19,179 warrants with exercise price of $10.95 per share and 304,105 warrants with exercise price of $12.00 per share in each period. These warrants expire between June 2024 and August 2031.

On September 27, 2022, the Company completed the Private Placement, issuing an aggregate of approximately 23.0 million shares of its common stock at a purchase price of $0.95 per share and pre-funded warrants to purchase an aggregate of 43.3 million shares of common stock at a purchase price of $0.949 per pre-funded warrant to certain institutional investors and accredited investors (the “Purchasers”). The pre-funded warrants have an exercise price of $0.001 per share of common stock, are immediately exercisable and will remain exercisable until exercised in full. The aggregate net proceeds from the Private Placement, after deducting placement agent fees and other offering expenses, were $59.0 million.

The pre-funded warrants include a provision whereby the exercisability of the warrants may be limited if, upon exercise, the warrant holder or any of its affiliates would beneficially own more than 9.99% of the Company’s common stock. The threshold is subject to the Purchasers’ rights under the pre-funded warrant to increase or decrease such percentage to any other percentage not in excess of 19.99% upon at least 61 days’ prior notice from the Purchasers to the Company. As of March 31, 2024, approximately 6.1 million shares have been issued pursuant to the exercise of pre-funded warrants and 24.9 million shares underlying the pre-funded warrants remain outstanding.

The pre-funded warrants are classified as equity and are accounted for as a component of additional paid-in capital at the time of issuance. The pre-funded warrants are included in the calculation of basic and diluted loss per share. Pursuant to the terms and conditions of the purchase agreements entered into by the Purchasers, the Company was obligated to file a registration statement with the SEC registering the resale by the Purchasers of the shares of common stock issued to them in the Private Placement and the shares of common stock to be issued to them upon exercise of the pre-funded warrants issued to them in the Private Placement within 45 days of the closing of the Private Placement. On November 4, 2022, the Company filed a registration statement on Form S-3 (File No. 333-268174), as required under the purchase agreements, and the registration statement was declared effective by the SEC on November 16, 2022.

7. Stock Based Compensation

Stock-based Compensation Expenses

The following tables present the Company’s stock-based compensation for stock-settled awards by type (i.e., stock options and restricted stock units (“RSUs”)) granted under the Company’s incentive plans, and rights to purchase shares of common stock issued under the Company’s Employee Stock Purchase Plan (“ESPP”) and financial statement lines included in the accompanying unaudited condensed consolidated statement of operations and comprehensive loss for the three months ended March 31:


	Three months ended March 31,
	2024		2023
	(in thousands)
Options	$	390	$	831
RSUs		2,500		1,066
ESPP		—	45
Total stock-based compensation expense	$	2,890	$	1,942


	Three months ended March 31,
	2024						2023
	Continuing operations		Discontinued operations		Total		Continuing perations		Discontinued operations		Total
	(in thousands)
Cost of sales	$	302	$	79	$	381	$	139	$	9	$	148
Selling, general and administrative		1,724		199		1,923		1,540		22		1,562
Research and development		495		91		586		224		8		232
Total stock-based compensation expense	$	2,521	$	369	$	2,890	$	1,903	$	39	$	1,942

During the three months ended March 31, 2024, the Company immediately vested 457,093 outstanding RSUs granted to certain non-executive employees in the continuing operations and recognized $1.6 million unamortized compensation expenses associated with these RSUs, with approximately $0.3 million expenses recorded in cost of sales, $0.8 million in selling, general and administrative and $0.4 million in research and development.

During the three months ended March 31, 2024, the Company immediately vested 132,394 outstanding RSUs granted to certain non-executive employees in the discontinued operations and recognized $0.3 million unamortized compensation expenses associated with these RSUs, as presented in the table above.

Compensation cost related to unvested stock options and RSUs will generally be amortized on a straight-line basis over the remaining average service period. The following table presents the unamortized compensation cost and weighted average service period of all unvested outstanding awards as of March 31, 2024.


	Unamortized Compensation Costs		Weighted Average Service Period
	(in thousands)		(years)
Options	$	1,672	1.4
RSUs		5,427	2.4
Total unamortized compensation cost	$	7,099

Plan Activities

The following table summarizes stock option activity under the Company’s incentive plans:


	Number of Shares			Weighted Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life	Aggregate Intrinsic Value
						(in years)	(in thousands)
Options outstanding, December 31, 2023		2,383,641		$	2.86
Forfeited		(205,041	)	$	2.41
Expired		(28,081	)	$	1.10
Options outstanding, March 31, 2024		2,150,519		$	2.92	6.1	$	-
Options vested and exercisable, March 31, 2024		1,743,488		$	2.95	5.5	$	-

There were no options granted during the three months ended March 31, 2024 and 2023.

The following table summarizes the non-vested stock options that were outstanding as of March 31, 2024 and December 31, 2023:


	Number of Shares		Weighted Average Grant Date Fair Value
Non-vested Options, December 31, 2023		461,287	$	5.33
Non-vested Options, March 31, 2024		407,031	$	1.36

The total fair value of shares vested during the three months ended March 31, 2024 and 2023 was $0.3 million and $0.7 million, respectively.

Certain stock option grants under the 2017 Stock Incentive Plan (the “2017 Plan”) allow the recipient to exercise the options prior to the options becoming fully vested. Under the 2017 Plan, the Company retains the right to repurchase shares of its common shares that have been issued upon early exercise of options at the original issue price. During the three months ended March 31, 2024, the Company did not repurchase any shares. There was no material number of shares of common stock subject to repurchase as of March 31, 2024. Cash received for the early exercise of unvested stock options is initially recorded as a liability and released to equity over the vesting period. There were no early exercised stock options during the three months ended March 31, 2024 and 2023.

The following table summarizes RSU activity under the Company’s incentive plans:


	Number of Shares			Weighted Average Grant Date Fair Value
RSUs outstanding, December 31, 2023		3,342,621		$	2.60
Granted		—			—
Vested		(813,349	)	$	3.26
Forfeited		(145,499	)	$	1.81
RSUs outstanding, March 31, 2024		2,383,773		$	2.42

During the three months ended March 31, 2024, vested RSUs included a total of 589,487 aforementioned immediately vested outstanding RSUs.

8. Leases

The Company leases office space under operating leases with expirations ranging from March 2025 to March 2028, some of which include rent escalations or an option to extend the lease for up to three years per renewal. The exercise of lease renewal options is at the sole discretion of the Company.

As of March 31, 2024, the Company has not entered into any new leases that would entitle the Company to significant rights or create additional obligations.

The Company determines whether a contract is or contains a lease at the inception of the contract. A contract will be deemed to be or contain a lease if the contract conveys the right to control and direct the use of identified property, plant, or equipment for a period of time in exchange for consideration. The Company generally must also have the right to obtain substantially all of the economic benefits from the use of the property, plant, and equipment.

The Company has elected the practical expedient to not separate its lease component from non-lease component for its real estate leases. The Company has elected the practical expedient not to apply the lease recognition requirements to short-term leases with an initial term of 12 months or less.

The Company uses either its incremental borrowing rate or the implicit rate in the lease agreement as the basis to calculate the present value of future lease payments at lease commencement. The incremental borrowing rate represents the rate the Company would have to pay to borrow funds on a collateralized basis over a similar term and in a similar economic environment.

Future minimum lease payments under these leases are as follows:


	Lease Amounts
	(in thousands)
2024 (remaining nine months)	$	937
2025		1,008
2026		892
2027		480
2028		122
Total future minimum lease payments		3,439
Less: Imputed Interest		(379	)
Present value of operating lease liabilities	$	3,060
Less: Current portion		1,172
Long-term operating lease liabilities	$	1,888

Weighted average remaining lease term in years		3.08
Weighted average discount rate		8.24	%

Variable operating lease expenses consist primarily of real estate taxes and insurance. The components of lease expense and related cash flows were as follows:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Rent expense	$	356	$	386
Variable lease costs		—		32
Total	$	356	$	418

Cash paid for operating leases	$	370	$	376


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Cost of sales	$	80	$	70
Selling, general and administrative		276		348
Total	$	356	$	418

9. Commitments and Contingencies

Contingencies

The Company is subject to claims and assessments from time to time in the ordinary course of business, including without limitation, actions with respect to intellectual property, employment, regulatory, product liability and contractual matters. In connection with these proceedings or matters, the Company regularly assesses the probability and amount (or range) of possible issues based on the developments in these proceedings or matters. A liability is recorded in the accompanying unaudited condensed consolidated financial statements if it is determined that it is probable that a loss has been incurred, and that the amount (or range) of the loss can be reasonably estimated. The Company’s management does not believe that any such matters, individually or in the aggregate, will have a material adverse effect on the Company’s business, financial condition, results of operations or cash flows.

10. Term Loan

Perceptive loan

On January 13, 2023, the Company entered into Amendment No. 2 (the “Second Amendment”) to the Amended and Restated Credit Agreement and Guaranty by and among the Company, the Subsidiary Guarantors party thereto, the Lenders party thereto and Perceptive (the “Amended Perceptive Loan Agreement”) to replace the existing benchmark rate from the one-month LIBOR with a one-month Secured Overnight Financing Rate (“SOFR”). All other terms remain unchanged on the original agreement. For the three months ended March 31, 2024 and 2023, the interest rate for amounts borrowed under the Amended Perceptive Loan Agreement was the greater of the one-month SOFR and 2.00% plus the applicable margin of 9.25%.

On March 1, 2024, the Company entered into Amendment No. 3 (the “Third Amendment”) to the Amended Perceptive Loan Agreement. Pursuant to the Third Amendment, the Company made a one-time $15.0 million principal repayment on March 1, 2024, and agreed to make an amortization payment of $1.8 million on the outstanding principal on March 31, 2024 and make monthly amortization payments on the outstanding principal each in the amount of $0.9 million on each payment date commencing on April 30, 2024. Accordingly, $1.0 million of the unamortized debt issuance costs were expensed.

For the three months ended March 31, 2024 and 2023, the effective interest rate of the Amended Perceptive Loan, was 21.22% and 16.71%, respectively. As of March 31, 2024 and 2023, the fair value of the Amended Perceptive Loan approximates its carrying amount.

Pursuant to the Third Amendment, future principal repayments and the net carrying value of the Perceptive Loan as of March 31, 2024, are as follows:


	Principal
	(in thousands)
Remaining 9 months of 2024	$	8,100
2025		10,800
2026		4,300
Total principal payment		23,200
Debt discounts		(1,489	)
Net carrying value	$	21,711

The Company is permitted to make voluntary prepayments, subject to a scaled prepayment premium that ranges from 7.0% to 1.0% of the aggregate principal amount outstanding on such prepayment date for prepayments made after August 23, 2022 and before August 23, 2025. No prepayment premium is required for payments made after August 23, 2025.

The Amended Perceptive Loan Agreement contains events of default, including, without limitation, upon: (i) failure to make a payment pursuant to the terms of the agreement; (ii) violation of certain covenants; (iii) payment or other defaults on other indebtedness; (iv) material adverse change in the business or change in control; (v) insolvency; (vi) significant judgments; (vii) incorrectness of representations and warranties; (viii) regulatory matters; and (ix) failure by us to maintain a valid and perfected lien on the collateral securing the borrowing. Based on the Amended Perceptive Loan Agreement, the Company has granted a security interest in substantially all of its assets.

The Amended Perceptive Loan Agreement includes financial covenants that require the Company to (i) maintain, at all times, a minimum aggregate balance of $3.0 million in cash in one or more controlled accounts, and (ii) pursuant to the Third Amendment, satisfy certain minimum revenue thresholds, measured for the consecutive 12-month periods ending on each calendar quarter-end until June 30, 2026 as follows:


For 12-month Period Ending	Revenue
	(in thousands)
March 31, 2024	$	39,000
June 30, 2024	$	35,500
September 30, 2024	$	33,000
December 31, 2024	$	31,500
March 31, 2025	$	31,000
June 30, 2025	$	33,000
September 30, 2025	$	35,935
December 31, 2025	$	40,160
March 31, 2026	$	44,950
June 30, 2026	$	51,500

Pursuant to the Third Amendment, the lender also waived the covenant requiring the absence of any “going concern” or like qualification or exception or any qualification or exception as to the scope of the audit, solely with respect to the fiscal year ending on December 31, 2023.

Failure to satisfy any covenants would constitute an event of default under the Amended Perceptive Loan Agreement. In the event of an event of default, the lender may terminate its commitments and declare all amounts outstanding under the Amended Perceptive Loan Agreement immediately due and payable, together with accrued interest and all fees and other obligations. The amount of such repayment will include payment of any prepayment premium applicable due to the time of such payment. In addition, upon the occurrence and during the continuance of any event of default, the applicable margin will increase by 3.00% per annum to 12.25%.

Total revenue generated from continuing and discontinued operations for the 12-months period ended March 31, 2024 was $41.6 million, and cash and cash equivalents and short term investment balance was $33.6 million as of March 31, 2024. As such, the Company was in compliance with all financial covenants and conditions under the Amended Perceptive Loan Agreement as of March 31, 2024.

11. Income Taxes

The Company maintains a full valuation allowance against its net deferred tax assets as of March 31, 2024 based on the current assessment that it is not more likely than not these future benefits will be realized before expiration. No material income tax expense or benefit has been recorded given the valuation allowance position and projected taxable losses in the jurisdictions where the Company files income tax returns. The Company has not experienced any significant increases or decreases to its unrecognized tax benefits since December 31, 2023 and does not expect any within the next 12 months.

The Company monitors changes to the tax laws in the states it conducts business and files corporate income tax returns.

Utilization of the net operating loss carryforwards may be subject to substantial annual limitation due to ownership change limitations that may have occurred or that could occur in the future, as required by Section 382 of the Internal Revenue Code of 1986, as amended (the “Code”), as well as similar state provisions. These ownership changes may limit the amount of net operating loss carryforwards that can be utilized annually to offset future taxable income and tax, respectively. In general, an “ownership change,” as defined by Section 382 of the Code, results from a transaction or series of transactions over a three-year period resulting in an ownership change of more than 50 percentage points of the outstanding stock of a company by certain stockholders or public groups. The Company has not completed an analysis regarding the limitation of net operating loss and R&D credit carryforwards as of March 31, 2024.

The Company is subject to U.S. federal and various states income taxes. The federal returns for tax years 2021 through 2023 remain open to examination and the state returns remain subject to examination for tax years 2020 through 2023. Carryforward attributes that were generated in years where the statute of limitations is closed may still be adjusted upon examination by the Internal Revenue Service or other respective tax authorities. All other state jurisdictions remain open to examination.

12. Segment Information

The Company previously operated and reported its results in two business segments, Product and Software. Software segment assets included goodwill and intangible assets, which were derecognized in connection with the divestiture of the software business on March 1, 2024. Following the divestiture, there were no substantial assets or operations of the software segment.

The software segment was reported as Discontinued Operations as of March 31, 2024, and is presented as such for all periods in this report. For more information, see Note 3 “Discontinued Operations.”

13. Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the periods presented:


	Three Months Ended March 31,
	2024			2023
	(in thousands, except shares and per share data)
Numerator:
Loss from continuing operations, net of tax	$	(12,189	)	$	(15,642	)
Income from discontinued operations, net of tax		5,427		271
Net loss	$	(6,762	)	$	(15,371	)
Denominator:
Weighted-average shares outstanding – basic and diluted		94,822,835			93,391,444
Net loss per share – basic and diluted	$	(0.07	)	$	(0.16	)

The following potentially dilutive securities were excluded from the computation of diluted net loss per share calculations for the periods presented because the impact of including them would be anti-dilutive:


	Three Months Ended March 31,
	2024		2023
Stock options		2,150,519		2,748,494
RSUs		2,383,773		5,598,529
Warrants		323,284		331,503
Total		4,857,576		8,678,526

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and the related notes to those statements included elsewhere in this Quarterly Report on Form 10-Q and the audited consolidated financial statements and notes thereto included in Part II, Item 8 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023. In addition to historical financial information, the following discussion and analysis contains forward-looking statements that involve risks, uncertainties and assumptions. Our actual results and timing of selected events may differ materially from those anticipated in these forward-looking statements as a result of many factors, including those discussed in Item 1A. Risk Factors in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 and in the filings we make with the Securities and Exchange Commission (the “SEC”) from time to time. See “Cautionary Note Regarding Forward-Looking Statements.”

Overview

We are a commercial-stage medical technology company focused on saving teeth from tooth decay, the most prevalent chronic disease globally. We have developed and manufacture the GentleWave® System, an innovative technology platform designed to treat tooth decay by cleaning and disinfecting the microscopic spaces within teeth without the need to remove tooth structure. The GentleWave System employs a sterilized, single-use procedure instrument ("PI"), to transform root canal therapy (“RCT”), by addressing the limitations of conventional methods.

The clinical benefits of our GentleWave System when compared to conventional methods of RCT include improved clinical outcomes, such as superior cleaning that is independent of root canal complexity and tooth anatomy, high and rapid rates of healing and minimal to no post- operative pain. In addition to the clinical benefits, the GentleWave System can improve the workflow and economics of dental practices. We began scaling commercialization of our current technology in 2017 and are focused on establishing the GentleWave Procedure as the standard of care for RCT.

Our GentleWave System represents an innovative technology platform and approach to RCT. The GentleWave System is a Class II device and has received 510(k) clearance from the FDA for preparing, cleaning, and irrigating teeth indicated for RCT. The key components of our GentleWave System are a sophisticated and mobile console and a pre-packaged, sterilized, single-use PI. The GentleWave System utilizes a proprietary mechanism of action that is designed to combine procedure fluid optimization, broad-spectrum acoustic energy and advanced fluid dynamics to efficiently and effectively reach microscopic spaces within teeth and dissolve and remove tissue and bacteria with minimal or no removal of tooth structure. We have invested significant resources in establishing a broad intellectual property portfolio that protects the GentleWave Procedure and its unique mechanism of action, as well as future capabilities under development. We believe our GentleWave System transforms the patient and dental practitioner experience and addresses many of the limitations of conventional RCT.

In the United States and Canada, our direct sales force markets and sells the GentleWave System to dental practitioners performing a high volume of root canals as part of their practice. Our commercial strategy and sales model involves a focus on driving adoption of our GentleWave System by increasing our installed base of consoles and maximizing recurring PI revenue through increased utilization. We have been and will continue to expand the size of our sales and clinician support teams to support our efforts of driving adoption and utilization of the GentleWave System. We plan to pursue marketing authorizations and similar certifications to enable marketing and engage in other market access initiatives over time in attractive international regions in which we see significant potential opportunity.

As of March 31, 2024, we had an installed base of approximately 1,142 GentleWave Systems. We generated revenue of $7.0 million and incurred a net loss of $12.2 million from continuing operations for the three months ended March 31, 2024, compared to revenue of $8.7 million and a net loss of $15.6 million for the three months ended March 31, 2023. As of March 31, 2024, we had cash and cash equivalents and short-term investments of $33.6 million, an accumulated deficit of $436.8 million, and $23.2 million in principal outstanding under our term loan facility.

We expect to continue to incur net losses for the next several years. We expect to continue to make investments in our sales and marketing organization, including expanding our international marketing programs and expanding direct to clinician digital marketing efforts to help facilitate further adoption among existing accounts and to broaden awareness and adoption of our products to new clinicians. We also expect to continue to make investments in research and development, regulatory affairs and clinical studies to develop future generations of our GentleWave products, support regulatory submissions and demonstrate the clinical efficacy of our new products. Moreover, we will continue to incur expenses as a result of operating as a public company, including legal, accounting, insurance, exchange listing and SEC compliance, investor relations, and other administrative and professional services expenses. As a result of these expenses, we require additional financing to fund our operations and planned growth.

material uncertainty that raises substantial doubt about our ability to continue as a going concern and, therefore, that we may be unable to realize our assets and discharge our liabilities in the normal course of business (see Liquidity and Capital Resources section).

On March 1, 2024, we divested our TDO software segment by selling substantially all the assets and liabilities of TDO, our wholly owned subsidiary, for approximately $16.0 million, with $15.0 million received upon closing and the balance due in approximately 12 months. A gain of $5.7 million on sale of the software business was recorded in income from discontinued operations.

Factors Affecting Our Performance and Key Business Metrics

We believe there are several important factors that impact our operating performance and results of operations. We also regularly review several operating and financial metrics to evaluate our business, measure our performance, identify trends affecting our business, formulate our business plan and make strategic decisions. We believe the following factors and key business metrics are important indicators of our performance:

•

Installed base of GentleWave Systems: We have focused on driving adoption of the GentleWave Procedure among endodontists in the United States and Canada. To drive further adoption of our system, we will continue to restructure our team of capital sales representatives, who are focused on system placement by directly engaging with dental practitioners and educating them about the compelling value proposition of the GentleWave Procedure. Our sales force leverages third-party data of root canal procedure volumes by practitioner, in order to enable us to efficiently and effectively identify target accounts. We believe that our current targeting strategy identifies a well-defined customer base that is accessible by our direct sales organization.

•

System utilization: Our revenue is significantly impacted by the utilization of our GentleWave System. Our objective is to establish the GentleWave Procedure as the standard of care for RCT. We intend to increase awareness of the GentleWave Procedure among dental practitioners and, in select markets where we establish a large installed base, directly with patients through various targeted direct-to-patient marketing initiatives, showcasing the benefits and points of difference of the GentleWave Procedure. We believe that once patients become aware of the GentleWave Procedure, they will seek the GentleWave Procedure over conventional RCT. We believe these initiatives will drive a greater volume of root canal procedures to dental practitioners who offer the GentleWave Procedure, thereby increasing utilization of our system.

•

Gross margins: Our results of operations depend, in part, on our ability to increase our gross margins by more effectively managing our costs to produce our GentleWave Console and single-use PI, and to scale our manufacturing operations efficiently. We are undertaking continuous margin improvement programs, including simplifying our product offering to one PI that can be used across various platforms, implementing lean manufacturing methods and working with our suppliers to reduce material costs. CleanFlow PI is now our leading PI and we have phased out the legacy PI designed for molar teeth (a “Molar PI”), anteriors and premolars (an “APM PI”) substantially in early 2024. We anticipate that the combination of these strategies will continue driving margin improvement.

•

Commercial organization: As of March 31, 2024, our sales and customer support team consisted of approximately 54 employees. We intend to continue to re-prioritize our commercial organization to increase the adoption of our products among existing and new customer accounts. Successfully recruiting and training a sufficient number of sales and customer support employees is required to achieve growth at the rate we expect. The effectiveness of our commercial organization re-prioritization can impact our revenue growth and our costs incurred in anticipation of such growth.

Effects of the Macroeconomic Environment

Our unaudited condensed consolidated financial statements as of and for the three months ended March 31, 2024 reflect our estimate of the impact of the macroeconomic environment, including the impact of inflation and higher interest rates. The duration and scope of these conditions cannot be predicted; therefore, the extent to which these conditions will directly or indirectly impact our business, results of operations and financial condition, is uncertain. We are not aware of any specific event or circumstance that would require an update to our estimates, judgments and assumptions or a revision of the carrying value of our assets or liabilities as of the date of this filing.

Stock Listing

Due to our failure to comply with the continued listing standards set forth in the NYSE’s Listed Company Manual, our common stock was suspended from trading on the NYSE effective at the opening of business Eastern Standard Time on November 22, 2023. We commenced trading on the OTCQX on the same day. We withdrew our request for an appeal and our common stock was delisted from the NYSE, which may negatively impact our stockholders and the trading price and liquidity of our common stock.

Components of Our Results of Operations

As discussed in Note 3, “Discontinued Operations” to the accompanying unaudited Condensed Consolidated Financial Statements in Part I of this Quarterly Report on Form 10-Q, on March 1, 2024, we divested our software segment by selling substantially all assets

and liabilities of TDO Software, Inc, our wholly owned subsidiary. The sale met the criteria to be accounted for as a discontinued operation as required by Accounting Standards Codification (“ASC”) 205-20. Accordingly, the financial results of the software business are reported as discontinued operations in the accompanying unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss for all periods presented. Our Condensed Consolidated Statements of Cash Flows include the financial results of the software business for the three months ended March 31, 2024 and 2023.

Revenue

Our revenue from continuing operations consists primarily of product and service revenue. We generate product revenue on the capital sale of our GentleWave Console and recurring sales of our single-use PIs and accessories. To a lesser extent, we also derive revenue from service and repair and extended warranty contracts with our existing customers. We expect our product and service revenue to increase in absolute dollars as we increase adoption and utilization of our GentleWave System, though revenues may fluctuate from quarter to quarter. We also expect the growth of recurring sales of our single-use PI and accessories to outpace the growth of capital sales of our GentleWave Console. Prior period financial statements have been recast so that software revenue is included in the discontinued operations.

Cost of Sales and Gross Margin

Cost of sales from continuing operations consists primarily of manufacturing overhead costs, material costs, and direct labor to produce our products, warranty, provisions for slow-moving and obsolete inventory, and other direct costs such as shipping and software support. A significant portion of our cost of sales currently consists of manufacturing overhead costs. These overhead costs include personnel compensation, including stock-based compensation expenses, facilities, production equipment depreciation, operations supervision, quality control, material procurement, intangible assets amortization and impairment of long-lived assets. We provide a one-year warranty on capital equipment upon initial sale, and we establish a reserve for warranty repairs based on historical warranty repair costs incurred. Provisions for warranty obligations, which are included in cost of sales, are provided for at the time of shipment. We expect our cost of sales to increase in absolute dollars for the foreseeable future primarily as, and to the extent, our revenue grows, partially offset by lower unit product costs, though it may fluctuate from period to period. Prior period financial statements have been recast so that software cost of sales is included in the discontinued operations.

We calculate gross margin as gross profit divided by revenue. Our gross margin has been and will continue to be affected by a variety of factors, primarily, product mix and the resulting average selling prices, production volumes, manufacturing costs and product yields, and the implementation of cost reduction strategies. Our previous software segment gross margin is generally higher than our product gross margin. Prior period financial statements have been recast to exclude the software segment from continuing operations. We expect gross margin to fluctuate in the short term, however, to increase year over year. We are engaged in various efforts to improve our gross margin by reducing unit product costs to the extent our production volumes increase, as well as through product design improvements, reducing material costs through negotiations with suppliers and optimizing the manufacturing process and reducing the costs to service our installed base.

Operating Expenses

Selling, General and Administrative

Selling, general and administrative (“SG&A”) expenses consist primarily of personnel compensation, including stock-based compensation, related to selling, marketing, professional education, administration, finance, information technology, legal, and human resource functions. SG&A expenses also include commissions, training, travel expenses, promotional activities, conferences, trade shows, professional services fees, audit fees, legal fees, insurance costs and general corporate expenses including allocated facilities-related expenses. We expect our SG&A expenses to decrease in absolute dollars for the foreseeable future as we implement our cost saving measures, re-prioritize our commercial infrastructure, become more efficient in the general and administrative functions, and have divested our software segment, though it may fluctuate from period to period.

Research and Development

Research and development (“R&D”) expenses consist primarily of costs incurred for proprietary R&D programs, and include costs of product engineering, product development, regulatory affairs, consulting services, materials, and depreciation, as well as other costs associated with products and technologies being developed. These expenses include employee and non-employee compensation, including stock-based compensation, supplies, materials, consulting, related travel expenses and facilities expenses. We expect our R&D expenses to decrease in absolute dollars for the foreseeable future as we become more efficient in our effort to develop, enhance, and commercialize new products and technologies, and have divested our software segment. However, we expect our R&D expenses as a percentage of revenue to vary over time depending on the level and timing of initiating new product development efforts.

Impairment of Long-lived Assets

Long-lived assets include definite-lived intangibles, long-lived fixed assets and lease right-of-use assets. An impairment charge of long-lived assets is recognized when an assessment of potential impairment indicates that an asset’s carrying amount is not recoverable. The carrying amount of the asset is reduced to its estimated fair value based on discounted cash flow analysis. An impairment analysis is subjective and assumptions regarding future growth rates and operating expense levels can have a significant impact on the expected future cash flows and impairment analysis.

Other Income (Expense), Net

Other (expense) income, net, consists primarily of interest expense under our outstanding term loan and investment income in our continuing operations.

Income from Discontinued Operations

Income from discontinued operations consists primarily of (loss) income from TDO software business and gain from sale of TDO assets and liabilities.

Results of Operations

Comparison of Three Months Ended March 31, 2024 and 2023

The following table shows our results of operations for the three months ended March 31, 2024 and 2023, together with the dollar and percentage change in those items:


	Three Months Ended March 31,						Change
	2024			2023			$			%
	(in thousands, except percentages)
Revenue, net		7,047			8,678			(1,631	)		(19	)%
Cost of sales
Product		4,900			6,700			(1,800	)		(27	)%
Impairment of long-lived assets		146			—			146			100	%
Total cost of sales		5,046			6,700			(1,654	)		(25	)%
Gross profit		2,001			1,978			23			1	%
Gross margin		28	%		23	%
Operating expenses:
Selling, general and administrative		10,061			14,114			(4,053	)		(29	)%
Research and development		2,189			2,927			(738	)		(25	)%
Total operating expenses		12,250			17,041			(4,791	)		(28	)%
Operating loss		(10,249	)		(15,063	)		4,814			(32	)%
Other income (expense), net:
Interest and financing costs, net		(1,940	)		(579	)		(1,361	)		235	%
Loss before income tax expense		(12,189	)		(15,642	)		3,453			(22	)%
Income tax expense		—			—			—			—
Loss from continued operations, net of tax		(12,189	)		(15,642	)
Income from discontinued operations, net of tax		5,427			271			5,156			1903	%
Net loss	$	(6,762	)	$	(15,371	)		8,609			(56	)%

Revenue

Revenue from continuing operations decreased $1.6 million, or 19%, for the three months ended March 31, 2024 from the comparable period in the prior year, which was primarily driven by lower sales volumes in PIs, partially offset by an increase in the average selling price of PIs by approximately 6%. For the three months ended March 31, 2024, we generated $1.8 million and $4.2 million from the sale of GentleWave consoles and PIs, respectively, compared to $2.0 million and $5.7 million, respectively, for the three months ended March 31, 2023.

Cost of sales and Gross margin

Cost of sales from continuing operations decreased $1.8 million, or 27%, for the three months ended March 31, 2024 from the comparable period in the prior year, which was primarily attributable to lower PI volume sold. The decrease is partially offset by expenses of $0.3 million recognized relating to the immediate vesting of RSUs granted to certain non-executive employees in the three months ended March 31, 2024.

Gross margin increased 6% for the three months ended March 31, 2024 from the comparable period in the prior year, primarily due to higher PI average selling price and lower cost on per unit basis.

Selling, general and administrative expenses

SG&A expenses decreased $4.1 million, or 29%, for the three months ended March 31, 2024 from the comparable period in the prior year, primarily driven by an approximately $2.5 million decrease in employee-related compensation and benefit expenses, including stock-based compensation, and recruiting expenses, as a result of the reduction in headcount. The decrease was also attributed lower marketing spending as we re-prioritize our commercial organization to increase the adoption of our products among existing and new customer accounts. The decrease is partially offset by expenses of $0.8 million recognized relating to the immediate vesting of RSUs granted to certain non-executive employees in the three months ended March 31, 2024.

Research and development expenses

R&D expenses decreased $0.7 million, or 25%, for the three months ended March 31, 2024 from the comparable period in the prior year, which was primarily driven by decrease in employee related compensation and benefit expenses due to lower headcount. The decrease is partially offset by expenses of $0.4 million recognized relating to the immediate vesting of RSUs granted to certain non-executive employees in the three months ended March 31, 2024.

Other expense, net

Total other expense, net for the three months ended March 31, 2024 increased compared to the prior year periods, mainly due to a $1.0 million expense of the unamortized debt issuance costs of our term loan resulting from the principal prepayment.

Income from Discontinued Operations

Income from discontinued operations for the three months ended March 31, 2024 consists primarily of gain of $5.7 million from sale of TDO assets and liabilities and loss from TDO software business for the period from January 1, 2024 to March 1, 2024, which includes expenses of $0.3 million recognized relating to the immediate vesting of RSUs granted to certain non-executive employees.

Liquidity and Capital Resources

Sources of liquidity

We have incurred significant operating losses and negative cash flows from operations since our inception, and we anticipate that we will continue to incur net losses for the next several years.

On September 27, 2022, we completed a private placement (the “Private Placement”), issuing an aggregate of approximately 23.0 million shares of our common stock at a purchase price of $0.95 per share and pre-funded warrants to purchase an aggregate of 43.3 million shares of our common stock at a purchase price of $0.949 per pre-funded warrant. The pre-funded warrants have an exercise price of $0.001 per share of common stock, are immediately exercisable and will remain exercisable until exercised in full. The aggregate net proceeds from the Private Placement, after deducting placement agent fees and other offering expenses, were $59.0 million.

As of March 31, 2024, we had cash and cash equivalents and short-term investments of $33.6 million, an accumulated deficit of $436.8 million, and $23.2 million in principal outstanding under our term loan facility. For the three months ended March 31, 2024 and 2023, our net losses from continuing operations were $12.2 million and $15.6 million, respectively, and our net cash used in operating activities was $10.7 million and $17.0 million, respectively.

Funding requirements

We expect our operating expenses to decrease for the foreseeable future as we implement our cost saving measures, re-prioritize our commercial infrastructure, become more efficient in the R&D and general and administrative functions, and have divested our software segment, though it may fluctuate from period to period. The timing and amount of our operating expenditures will depend on many factors, including:

•

the degree and rate of market acceptance of our current and future products and the GentleWave Procedure;

•

the scope and timing of investment in our sales force;

•

the impact of the macroeconomic environment, including as a result of inflation and rising interest rates, the war in Ukraine and the Gaza strip, or any other pandemic, epidemic or infectious disease outbreak, on our business;

•

the cost of our research and development activities;

•

the cost and timing of additional regulatory clearances or approvals;

•

the costs associated with any product recall that may occur;

•

the costs associated with the manufacturing of our products at increased production levels;

•

the costs of attaining, defending and enforcing our intellectual property rights;

•

whether we acquire third-party companies, products or technologies;

•

the terms and timing of any other collaborative, licensing and other arrangements that we may establish;

•

the scope, rate of progress and cost of our current or future clinical trials and registries;

•

the emergence of competing new products, technologies or alternative treatments or other adverse market developments;

•

our ability to raise additional funds to finance our operations;

•

debt service requirements; and

•

the cost associated with being a public company.

Our unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report have been prepared assuming we will continue to operate as a going concern, which contemplates the realization of assets and settlement of liabilities in the normal course of business, and do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from uncertainty related to our ability to continue as a going concern.

Our ability to continue as a going concern depends on our ability to continue to commercialize our products, achieve and maintain profitable operations, as well as the adherence to conditions of the outstanding term loan (see Note 10 to the Condensed Consolidated Financial Statements). Without additional financing, we will have insufficient liquidity to achieve further commercialization of our products and maintain compliance with our loan covenants. Due to these conditions, there is substantial doubt about our ability to continue as a going concern and, therefore, we may be unable to realize our assets and discharge our liabilities in the normal course of business.

We will require additional financing in order to fund future expected negative cash flows. Due to our failure to comply with the continued listing standards set forth in the NYSE’s Listed Company Manual, our common stock was suspended from trading on the NYSE effective at the opening of business Eastern Standard Time on November 22, 2023. We commenced trading on the OTCQX on the same day. In April 2024, we withdrew the request to appeal the NYSE’s delisting determination and our common stock was delisted from the NYSE, which may negatively impact our stockholders and the trading price and liquidity of our common stock.

Over-the-counter markets are more limited than the NYSE, and it is likely that there will be significantly less liquidity in the trading of our common stock. The delisting of our common stock from the NYSE could have material adverse effects on our business, financial condition and results of operations due to, among other things:

•

reduced trading liquidity and market prices for our common and preferred stock ;

•

decreased number of institutional and other investors willing to hold or acquire our stock, coverage by securities analysts, market making activity and information available concerning trading prices and volume, as well as fewer broker-dealers willing to execute trades in our stock, thereby further restricting our ability to obtain equity financing;

•

resulting event of default or noncompliance under certain of our debt facilities and other agreements; and

•

reduced ability to retain, attract and motivate our directors, officers and employees by means of equity compensation.

Delisting our common stock from the NYSE may adversely impact our liquidity, impair our stockholders’ ability to buy and sell our common stock, impair our ability to raise capital, and the market price of our common stock could decrease. Delisting our common stock could also adversely impact the perception of our financial condition and have additional negative ramifications, including further loss of confidence by our employees, the loss of institutional investor interest and fewer business opportunities.

We have active plans to mitigate these conditions. Specifically, we plan to reduce negative cash flow through operating expense reductions. We are evaluating multiple opportunities, which may include soliciting external investment or seeking strategic partnerships. Additionally, as detailed in Note 3 to the Consolidated Financial Statements, we closed on the sale of TDO and renegotiated our covenant requirements with our lender, among other terms, which resulted in us remitting $15 million of principal payments on our outstanding borrowings. Our plans are subject to inherent risks and uncertainties and there can be no assurance that our plans can be effectively implemented and, therefore, that the conditions can be effectively mitigated.

Indebtedness

On January 13, 2023, we entered into the Second Amendment to the Amended Perceptive Loan Agreement to replace the existing benchmark rate from the one-month LIBOR with a one-month SOFR. All other terms remain unchanged on the original agreement. For the three months ended March 31, 2024 and 2023, the interest rate for amounts borrowed under the Amended Perceptive Loan Agreement was the greater of the one-month SOFR and 2.00% plus the applicable margin of 9.25%.

On March 1, 2024, we entered to the Third Amendment to the Amended Perceptive Loan Agreement. Pursuant to the Third Amendment, the Company made a one-time $15.0 million principal repayment on March 1, 2024, and agreed to make an amortization

payment of $1.8 million on the outstanding principal on March 31, 2024 and make monthly amortization payments on the outstanding principal amount each in the amount of $0.9 million on each payment date commencing on April 30, 2024. Accordingly, $1.0 million of the unamortized debt issuance costs were expensed.

The Third Amendment also modified certain covenants included in the Amended Perceptive Loan Agreement and released all liens granted to the TDO software assets. Future principal repayments and the net carrying value of the Perceptive Loan, as of December 31, 2023, are as follows:


	Principal
	(in thousands)
Remaining 9 months of 2024	$	8,100
2025		10,800
2026		4,300
Total principal payment		23,200
Debt discounts		(1,489	)
Net carrying value	$	21,711

We are permitted to make voluntary prepayments, subject to a scaled prepayment premium that ranges from 7.0% to 1.0% of the aggregate principal amount outstanding on such prepayment date for prepayments made after August 23, 2022 and before August 23, 2025. No prepayment premium is required for payments made after August 23, 2025.

The Amended Perceptive Loan Agreement contains events of default, including, without limitation, upon: (i) failure to make a payment pursuant to the terms of the agreement; (ii) violation of certain covenants; (iii) payment or other defaults on other indebtedness; (iv) material adverse change in the business or change in control; (v) insolvency; (vi) significant judgments; (vii) incorrectness of representations and warranties; (viii) regulatory matters; and (ix) failure by us to maintain a valid and perfected lien on the collateral securing the borrowing. Based on the Amended Perceptive Loan Agreement, we have granted a security interest in substantially all of our assets.

The Amended Perceptive Loan Agreement includes financial covenants that require us to (i) maintain, at all times, a minimum aggregate balance of $3.0 million in cash in one or more controlled accounts, and (ii) pursuant to the Third Amendment, satisfy certain minimum revenue thresholds, measured for the consecutive 12-month periods ending on each calendar quarter-end until June 30, 2026 as follows:


For 12-month Period Ending	Revenue
	(in thousands)
March 31, 2024	$	39,000
June 30, 2024	$	35,500
September 30, 2024	$	33,000
December 31, 2024	$	31,500
March 31, 2025	$	31,000
June 30, 2025	$	33,000
September 30, 2025	$	35,935
December 31, 2025	$	40,160
March 31, 2026	$	44,950
June 30, 2026	$	51,500

Revenue generated from continuing and discontinued operations for the 12-months period ended March 31, 2024 was $41.6 million, and cash and cash equivalents and short term investment balance was $33.6 million as of March 31, 2024. As such, we were in compliance with all financial covenants and conditions under the agreement as of March 31, 2024.

Summary statement of cash flows

The following table summarizes our statement of cash flows:


	Three Months Ended March 31,
	2024			2023
	(in thousands)
Net cash provided by (used in) :
Operating activities	$	(10,689	)	$	(16,976	)
Investing activities		32,073			11,965
Financing activities		(16,813	)		(6	)
Net increase (decrease) in cash and cash equivalents	$	4,571		$	(5,017	)

Operating Activities

Net cash used in operating activities was $10.7 million for the three months ended March 31, 2024, primarily consisting of net loss of $6.8 million and gain on sales of discontinued operations of $5.7 million, as adjusted for non-cash items of $4.4 million, partially offset by a net change in our net operating assets and liabilities of $2.6 million. Non-cash items primarily consisted of $2.9 million in stock-based compensation and $1.1 million of amortization of debt issuance costs. Changes in our net operating assets and liabilities year-over-year, was primarily due to a $1.4 million increase inventory due to managing production level, $1.0 million increase in accrued expenses and other liabilities on payments to vendors and a $1.0 million increase in accrued compensation due to year-end bonus payout, partially offset by changes in accounts receivable, prepaid expenses and other assets and accounts payable attributable to timing of payment.

Net cash used in operating activities was $17.0 million for the three months ended March 31, 2023, primarily consisting of net loss of $15.2 million as adjusted for non-cash items of $2.3 million and a net change in our net operating assets and liabilities of $3.9 million. Non-cash items primarily consisted of $0.7 million in depreciation and amortization and $1.9 million in stock-based compensation. Changes in our net operating assets and liabilities year-over-year, was primarily due to a $1.7 million increase in accrued expenses and other liabilities on payments to vendors and a $1.2 million increase in accrued compensation due to year-end bonus payout. Changes in our net operating assets and liabilities also resulted from changes in accounts receivable, inventory, prepaid expenses and other assets and accounts payable attributable to timing of payment.

Investing Activities

Net cash provided by investing activities was $32.1 million for the three months ended March 31, 2024, as a result of $18.0 million proceeds from maturities of available-for-sale securities and $14.2 million net proceeds from sale of discontinued operations, partially offset by the purchases of property and equipment. Net cash provided by investing activities was $12.0 million for the three months ended March 31, 2023, as a result of proceeds from maturities of available-for-sale securities partially offset by the purchases of available-for-sale securities and property and equipment.

Financing Activities

Net cash used in financing activities was $16.8 million for the three months ended March 31, 2024, primarily due to principal repayment on our term loan. Net cash used in financing activities for the three months ended March 31, 2024 was immaterial.

Critical Accounting Policies and Estimates

Our management’s discussion and analysis of financial condition and results of operations is based on our condensed consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The preparation of these condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, the revenue generated, and expenses incurred, and related disclosures, during the reporting periods. Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other

sources. Actual results may differ from these estimates under different assumptions or conditions and any such differences may be material.

There were no material changes to our critical accounting policies or in the methodology used for estimates from those described in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in our Annual Report on Form 10-K filed with the SEC on March 11, 2024.

JOBS Act Accounting Election and Smaller Reporting Company Status

We are an “emerging growth company,” as defined in the JOBS Act. As such, we are eligible for exemptions from various reporting requirements applicable to other public companies that are not emerging growth companies, including, but not limited to, presenting only two years of audited financial statements in addition to any required unaudited interim financial statements with correspondingly reduced “Management’s Discussion and Analysis of Financial Condition and Results of Operations” disclosure in this Quarterly Report on Form 10-Q, not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation, and an exemption from the requirements to obtain a non-binding advisory vote on executive compensation or golden parachute arrangements. We have elected to take advantage of certain of the reduced disclosure obligations in this Quarterly Report on Form 10-Q and may elect to take advantage of other reduced reporting requirements in our future filings with the SEC. As a result, the information that we provide to our stockholders may be different than you might receive from other public reporting companies in which you hold equity interests.

In addition, the JOBS Act permits an “emerging growth company” such as us to take advantage of an extended transition period to comply with new or revised accounting standards applicable to public companies. We have elected to avail ourselves of this exemption and, therefore, for new or revised accounting standards applicable to public companies, we may delay adopting new or revised accounting standards until those standards would otherwise apply to private companies.

We will remain an emerging growth company until the earliest of (1) the last day of our first fiscal year (a) following the fifth anniversary of our IPO, which closed on November 2, 2021, (b) in which we have total annual gross revenues of at least $1.07 billion or (c) in which we are deemed to be a large accelerated filer, as defined in Rule 12b-2 under the Exchange Act of 1934, as amended, which means the market value of our common stock that is held by non-affiliates exceeds $700 million as of the end of the second quarter of the prior fiscal year, and (2) the date on which we have issued more than $1.0 billion in non-convertible debt securities during the prior three-year period.

We are also a “smaller reporting company” as defined in the Exchange Act. We may continue to be a smaller reporting company even after we no longer qualify as an emerging growth company. We may take advantage of certain of the scaled disclosures available to smaller reporting companies and will be able to take advantage of these scaled disclosures for so long as our voting and non-voting common stock held by non-affiliates is less than $250 million measured on the last business day of our second fiscal quarter, or our annual revenue is less than $100 million during the most recently completed fiscal year and our voting and non-voting common stock held by non-affiliates is less than $700 million measured on the last business day of our second fiscal quarter.

Recent Accounting Pronouncements

See Note 2 to our unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q for additional information.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

Not applicable.

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Our management, under the supervision and with the participation of our Chief Executive Officer (principal executive officer) and our Chief Financial Officer (principal financial officer), conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act of 1934, as amended, as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on that evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of March 31, 2023.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the quarter ended March 31, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitations on the Effectiveness of Controls

Control systems, no matter how well conceived and operated, are designed to provide a reasonable, but not an absolute, level of assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, have been detected. Because of the inherent limitations in any control system, misstatements due to error or fraud may occur and not be detected.

PART II—OTHER INFORMATION

Item 1. Legal Proceedings.

From time to time, we may become involved in various claims and legal proceedings. Regardless of outcome, litigation and other legal and administrative proceedings can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors. We are currently not a party to any legal proceedings the outcome of which, if determined adversely to us, would individually or in the aggregate have a material adverse effect on our business, financial condition, and results of operations.

Item 1A. Risk Factors.

We have described under the heading “Risk Factors” in Part I, Item 1A of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 risks and uncertainties that could cause our actual results of operations and financial condition to vary materially from past, or from anticipated future, results of operations and financial condition. These risks and uncertainties are not the only risks facing us. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also adversely affect our business, financial condition, results of operations or the market price of our common stock. Except as set forth below, there have been no material changes to the risk factors previously described in our 2023 Annual Report on Form 10-K.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

None.

Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

None.

Item 5. Other Information.

During the quarter ended March 31, 2024, no director or officer, as defined in Rule 16a-1(f), adopted or terminated a "Rule 10b5-1 trading arrangement" or a "non-Rule 10b5-1 trading arrangement," each as defined in Regulation S-K Item 408.

Item 6. Exhibits.

The following exhibits are filed as part of, or incorporated by reference into, this Quarterly Report on Form 10-Q unless otherwise stated.


		Incorporated by Reference
Exhibit Number	Description	Form	File No.	Exhibit	Filing Date	Filed / Furnished Herewith
3.1	Amended and Restated Certificate of Incorporation	8-K	001-40988	3.1	11/2/2021
3.2	Amended and Restated Bylaws	8-K	001-40988	3.2	11/2/2021
4.1	Form of Certificate of Common Stock	S-1/A	333-260136	4.1	10/25/2021
4.2	Fifth Amended and Restated Voting Agreement by and among Sonendo, Inc. and the investors listed therein	S-1/A	333-260136	4.2	10/25/2021
4.3	Third Amended and Restated Investors’ Rights Agreement by and among Sonendo, Inc. and the investors listed therein	S-1	333-260136	4.3	10/8/2021
4.4	Warrant to purchase Series C-1 preferred stock, issued to Oxford Finance LLC on December 31, 2013	S-1	333-260136	4.4	10/8/2021
4.5	Warrant to purchase Series C-1 preferred stock, issued to Oxford Finance LLC on June 30, 2014	S-1	333-260136	4.5	10/8/2021
4.6	Warrant to purchase Series C-1 preferred stock, issued to Oxford Finance LLC on December 31, 2014	S-1	333-260136	4.6	10/8/2021
4.7	Warrant to purchase Series D preferred stock	S-1	333-260136	4.7	10/8/2021
4.8	Warrant to purchase Series E preferred stock (2018)	S-1	333-260136	4.8	10/8/2021
4.9	Warrant to purchase Series E preferred stock (2019)	S-1	333-260136	4.9	10/8/2021
4.10	Warrant to purchase Series E preferred stock (2021)	S-1	333-260136	4.10	10/8/2021
4.11	Description of Common Stock	10-K	001-40988	4.11	3/23/2022
4.12	Credit Agreement Warrant to Purchase Stock	8-K	001-40988	4.1	4/7/2022
4.13	Schedule to Exhibit 4.11 - Form of Credit Agreement Warrant to Purchase Stock	8-K	001-40988	4.2	4/7/2022
4.14	Form of Credit Agreement Warrant to Purchase Stock (Warberg entities)	10-Q	001-40988	4.11	8/10/2022
4.15	Schedule to Exhibit 4.14 - Holders of Credit Agreement Warrants to Purchase Common Stock (Warberg entities)	10-Q	001-40988	4.12	8/10/2022
4.16	Form of Indenture for Senior Debt Securities	S-3	333-270366	4.6	3/8/2023
4.17	Form of Indenture for Subordinated Debt Securities	S-3	333-270366	4.7	3/8/2023
10.1	Offer Letter, dated March 18, 2024, between Sonendo, Inc. and Chris Guo
10.2	Asset Purchase Agreement, between TDO Software, Inc., Valsoft Corporation Inc. and Aspire USA LLC, effective as of March 1, 2024	8-K	001-40988	10.2	3/5/2024
10.3	Amendment No. 3 to Amended and Restated Credit Agreement and Guaranty, dated as of March 1, 2024, by and between Sonendo, Inc. and Perceptive Credit	8-K	001-40988	10.2	3/5/2024
31.1	Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.					*


31.2	Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	*
32.1	Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	*
32.2	Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	*
101.INS	Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because XBRL tags are embedded within the Inline XBRL document.	*
101.SCH	Inline XBRL Taxonomy Extension Schema Document	*
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document	*
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document	*
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document	*
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document	*
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)	*

* Filed or furnished herewith.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


	Sonendo, Inc.


Date: May 8, 2024	By:	/s/ Bjarne Bergheim
		Bjarne Bergheim
		President, Chief Executive Officer and Director
		(principal executive officer)


Date: May 8, 2024	By:	/s/ Chris Guo
		Chris Guo
		Interim Chief Financial Officer
		(principal financial and accounting officer)

March 18, 2024

Chris Guo

RE: Job Title and Compensation Change

Dear Chris:

I am pleased to inform you that in recognition of your performance, you are being moved to the position of Interim Chief Financial Officer. You will report to Bjarne Bergheim, President & CEO.

During this interim period, starting on the date of this letter, your annual base salary will be $300,000.00 which represents an 8.16% increase (less any applicable Federal and State taxes). This change will be reflected in the upcoming pay date of 3/29/24.

In addition, you will continue to be eligible to participate in the Company’s bonus program, which may be amended from time to time, with a target incentive of 40% of your annual base salary (pro-rated as may be necessary to reflect your interim CFO dates). Your actual incentive bonus payout will depend on the achievement of pre-determined objectives and, to the extent applicable, the Compensation Committee’s assessment of your individual performance. To be eligible for the incentive bonus, you must remain employed and in good standing with the Company through the date that the incentive bonus is paid. The incentive bonus will be paid annually, typically by March 15 after the fiscal year for which they are earned.

You will receive a retention bonus of $60,000.00 per the following terms:

You will receive $40,000.00 payable within 12 months of the Effective Date.

You will receive the remaining $20,000.00 for [•] within 12 months of the Effective Date.

We value your dedication and contribution to Sonendo and we look forward to your future success. Congratulations on this well-deserved recognition.

Sincerely,

/s/ Roy T. Chen

Roy T. Chen

Chief Talent Officer

Accepted and Agreed:

/s/ Chris Guo 3/18/24

Chris Guo Date

Exhibit 31.1

CERTIFICATION

I, Bjarne Bergheim, certify that:

I have reviewed this Quarterly Report on Form 10-Q of Sonendo, Inc.;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

(a)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)

[Omitted];

(c)

Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)

Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.


Date: May 8, 2024	By:	/s/ Bjarne Bergheim
		Bjarne Bergheim
		President and Chief Executive Officer

Exhibit 31.2

CERTIFICATION

I, Chris Guo, certify that:

I have reviewed this Quarterly Report on Form 10-Q of Sonendo, Inc.;

(a)

(b)

[Omitted];

(c)

(d)

(a)

(b)

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.


Date: May 8, 2024	By:	/s/ Chris Guo
		Chris Guo
		Interim Chief Financial Officer

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Sonendo, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1)

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)

The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.


Date: May 8, 2024	By:	/s/ Bjarne Bergheim
		Bjarne Bergheim
		President and Chief Executive Officer

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

(1)

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)

The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.


Date: May 8, 2024	By:	/s/ Chris Guo
		Chris Guo
		Interim Chief Financial Officer

Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2024	May 02, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Entity Registrant Name	Sonendo, Inc.
Entity Central Index Key	0001407973
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Small Business	true
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		70,455,399
Entity File Number	001-40988
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-5041718
Entity Address, Address Line One	26061 Merit Circle
Entity Address, Address Line Two	Suite 102
Entity Address, City or Town	Laguna Hills
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92653
City Area Code	949
Local Phone Number	766-3636
Document Quarterly Report	true
Document Transition Report	false
Title of 12(b) Security	Common stock, par value $0.001 per share
Trading Symbol	SONX

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 18,580	$ 14,009
Short-term investments	15,009	32,773
Accounts receivable, net	4,176	4,790
Inventory	12,116	11,074
Prepaid expenses and other current assets	1,611	1,969
Current assets of discontinued operations	1,162	656
Total current assets	52,654	65,271
Property and equipment, net	767	461
Operating lease right-of-use assets	3,227	2,703
Other assets	127	128
Non-current assets of discontinued operations		9,597
Total assets	56,775	78,160
Current liabilities:
Accounts payable	916	1,142
Accrued expenses	2,737	3,072
Accrued compensation	1,470	2,413
Operating lease liabilities	1,172	1,250
Current portion of term loan	10,800	24,900
Other current liabilities	1,786	1,844
Current liabilities of discontinued operations	73	700
Total current liabilities	18,954	35,321
Operating lease liabilities, net of current	1,888	1,423
Term loan, net of current	10,911	12,467
Other liabilities	491	530
Total liabilities	32,244	49,741
Commitments and contingencies (Note 8)
Stockholders' equity:
Preferred stock, $0.001 par value; authorized -10,000,000 shares; issued and outstanding - none
Common stock, $0.001 par value; authorized - 500,000,000 shares; issued and outstanding- 70,449,873 shares as of March 31, 2024 and 63,547,467 shares as of December 31, 2023	70	64
Additional paid-in-capital	461,237	458,357
Accumulated other comprehensive loss	(1)	11
Accumulated deficit	(436,775)	(430,013)
Total stockholders' equity	24,531	28,419
Total liabilities and stockholders' equity	$ 56,775	$ 78,160

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding	0	0
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	70,449,873	63,547,467
Common stock, shares outstanding	70,449,873	63,547,467

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue, net	$ 7,047	$ 8,678
Cost of sales, product and software	4,900	6,700
Impairment of long-lived assets	146
Total cost of sales	5,046	6,700
Gross profit	2,001	1,978
Operating expenses:
Selling, general and administrative	10,061	14,114
Research and development	2,189	2,927
Total operating expenses	12,250	17,041
Operation loss	(10,249)	(15,063)
Interest and financing costs, net	(1,940)	(579)
Loss before income tax expense	(12,189)	(15,642)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent, Total	(12,189)	(15,642)
Income from discontinued operations, net of tax	5,427	271
Net loss	(6,762)	(15,371)
Other comprehensive income (net of tax):
Unrealized gain on short-term investments	(12)	56
Comprehensive loss	$ (6,774)	$ (15,315)
Net loss per share from continuing operations - basic	$ (0.13)	$ (0.16)
Net loss per share from continuing operations - diluted	(0.13)	(0.16)
Net income per share from discontinued operations - basic	0.06	0
Net income per share from discontinued operations - diluted	0.06	0
Net loss per share - basic	(0.07)	(0.16)
Net loss per share - diluted	$ (0.07)	$ (0.16)
Weighted-average shares outstanding - basic	94,822,835	93,391,444
Weighted-average shares outstanding - diluted	94,822,835	93,391,444

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance, Shares at Dec. 31, 2022		49,974,281
Beginning balance at Dec. 31, 2022	$ 81,955	$ 50	$ 451,060	$ (61)	$ (369,094)
Employee stock plans, Shares		216,105
Stock-based compensation	1,942		1,942
Exercised of pre-funded warrants	1	$ 1
Exercised of pre-funded warrants, Shares		1,062,080
Unrealized gain on short-term investments	56			56
Net loss	(15,371)				(15,371)
Ending balance, Shares at Mar. 31, 2023		51,252,466
Ending balance at Mar. 31, 2023	68,583	$ 51	453,002	(5)	(384,465)
Beginning balance, Shares at Dec. 31, 2023		63,547,467
Beginning balance at Dec. 31, 2023	28,419	$ 64	458,357	11	(430,013)
Employee stock plans	(4)		(4)
Employee stock plans, Shares		790,524
Stock-based compensation	2,890		2,890
Exercised of pre-funded warrants		$ 6	(6)
Exercised of pre-funded warrants, Shares		6,111,882
Unrealized gain on short-term investments	(12)			(12)
Net loss	(6,762)				(6,762)
Ending balance, Shares at Mar. 31, 2024		70,449,873
Ending balance at Mar. 31, 2024	$ 24,531	$ 70	$ 461,237	$ (1)	$ (436,775)

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (6,762)	$ (15,371)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	64	339
Amortization intangible assets	51	166
Amortization of right-of-use lease assets	322	325
Impairment of long-lived assets	146
Stock-based compensation	2,890	1,942
Amortization of debt issuance costs	1,144	146
Accretion of available for sale securities, net	(264)	(634)
Gain on sale of discontinued operations	(5,703)
Changes in operating assets and liabilities:
Accounts receivable, net	906	(634)
Inventory	(1,403)	(561)
Prepaid expenses and other assets	812	(694)
Accounts payable	(260)	896
Accrued expenses and other liabilities	(1,492)	(1,614)
Deferred revenue	128	(95)
Accrued compensation	(1,268)	(1,187)
Net cash used in operating activities	(10,689)	(16,976)
Cash flows from investing activities:
Purchases of available-for-sale securities		(15,125)
Proceeds from maturities of available-for-sale securities	18,015	27,300
Purchases of property and equipment	(146)	(210)
Proceeds from sale of discontinued operations, net	14,204
Net cash provided by investing activities	32,073	11,965
Financing activities:
Principal repayments on term loan	(16,800)
Tax paid on vested stock awards under employee stock plan	(4)
Principal repayments on finance lease	(9)	(7)
Proceeds from exercise of pre-funded warrants		1
Net cash used in financing activities	(16,813)	(6)
Net increase (decrease) in cash and cash equivalents	4,571	(5,017)
Cash and cash equivalents at beginning of period	14,009	17,665
Cash and cash equivalents at end of period	18,580	12,648
Cash paid for:
Interest	1,300	1,387
Supplemental schedule of non-cash investing and financing activities:
Operating lease right-of-use assets obtained in exchange for lease liabilities	$ 826	$ 1,802

Organization and Basis of Presentation

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Basis of Presentation

1. Organization and Basis of Presentation

Description of Business

Basis of Presentation

Liquidity and Going Concern

As of March 31, 2024, the Company had cash and cash equivalents and short-term investments of $33.6 million and $23.2 million in principal outstanding under its term loan facility.

Effects of the Macroeconomic Environment

Operating Segments

Emerging Growth Company Status

Summary Accounting Policies and Recent Accounting Pronouncements

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Summary Accounting Policies and Recent Accounting Pronouncements

2. Summary Accounting Policies and Recent Accounting Pronouncements

Use of Estimates

Inventory

Revenue Recognition

Contracts with Customers

Performance Obligations

The Company estimates related variable consideration at the point of sale, including discounts, product returns, refunds, and other similar obligations.

Contract liabilities


	March 31,		December 31,
	2024		2023
	(in thousands)
Total contract liabilities - extended service contracts	$	1,048	$	920
Less: long-term portion		281		302
Contract liabilities – current	$	767	$	618

Disaggregation of revenue

The following table provides information regarding disaggregated revenues and the timing of when goods and services are transferred:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Product revenue recognized at a point in time	$	6,730	$	8,524
Service revenue recognized over time		317		154
Total revenue	$	7,047	$	8,678

No individual customer accounted for more than 10% of sales for the three months ended March 31, 2024 and 2023.

Warranty Reserve

of future conditions and standard maintenance schedules. The Company evaluates this reserve on a regular basis and makes adjustments as necessary.

The following table provides a reconciliation of the change in estimated warranty liabilities for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,
	2024			2023
	(in thousands)
Balance at beginning of period	$	1,269		$	1,930
Provision for warranties issued		200			195
Warranty costs incurred		(427	)		(368	)
Balance at end of period	$	1,042		$	1,757
Current portion	$	980		$	1,335
Non-current portion		62			422
Total	$	1,042		$	1,757

The warranty liabilities, current and non-current, are included in other current liabilities and other liabilities, respectively, on the unaudited condensed consolidated balance sheets.

Recent Accounting Pronouncements

Accounting Pronouncement Recently Adopted

None.

Discontinued Operations

3 Months Ended

Mar. 31, 2024

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

3. Discontinued Operations


	Three Months Ended March 31,
	2024			2023
	(in thousands)
Revenue	$	1,389		$	2,046
Cost of sales		510			678
Gross profit		879			1,368
Operating expenses:
Selling, general and administrative		679			552
Research and development		476			567
(Loss) income from discontinued operations, net of tax		(276	)		249
Other income		—			22
Gain on sale of discontinued operations, net of tax		5,703			—
Net income from discontinued operations	$	5,427		$	271

revenue is recognized at the point in time when the delivery of the software has occurred. When software is licensed on a subscription basis, revenue is recognized over the respective license period.

The following table presented assets and liabilities of discontinued operations as of March 31, 2024 and December 31, 2023:


	March 31, 2024		December 31, 2023
	(in thousands)
Current assets:	$	1,162	$	656
Non-current assets:
Intangible assets, net		—		661
Goodwill		—		8,454
Other		—		482
Total assets of discontinued operations	$	1,162	$	10,253

Current liabilities:
Accounts payable		—		34
Accrued expenses		53		194
Accrued compensation		20		345
Operating lease liabilities		—		127
Total liabilities of discontinued operations	$	73	$	700

Balance Sheet Components

3 Months Ended

Mar. 31, 2024

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

. Balance Sheet Components

Inventory

Inventory consisted of the following:


	March 31,		December 31,
	2024		2023
	(in thousands)
Raw materials	$	6,534	$	6,450
Work in process		338		278
Finished goods		5,244		4,346
Total inventory	$	12,116	$	11,074

The balance of the reserve of excess and obsolete inventory was 0.8 million for each of the periods ending March 31, 2024 and December 31, 2023.

Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

. Fair Value of Financial Instruments

The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels:


	March 31, 2024
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	17,671	$	17,671	$	—	$	—
Total cash equivalents at fair value		17,671		17,671		—		—
Short-term investments:
U.S. treasury securities		5,697		5,697		—		—
Commercial paper and corporate bonds		9,312		—		9,312		—
Total short-term investments at fair value		15,009		5,697		9,312		—
Total assets at fair value	$	32,680	$	23,368	$	9,312	$	—


	March 31, 2024
	Fair Value		Cost Basis		Amounts Recognized in Accumulated Other Comprehensive Loss
					Unrealized Gains		Unrealized Losses
	(in thousands)
Available-for-sale securities:
U.S. treasury securities	$	5,697	$	5,697	$	—	$	—
Commercial paper and corporate bonds	$	9,312		9,313		1		(2	)
Total available-for-sale securities at fair value	$	15,009	$	15,010	$	1	$	(2	)


	December 31, 2023
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	10,761	$	10,761	$	—	$	—
Corporate Bonds		1,827		—		1,827		—
Total cash equivalents at fair value		12,588		10,761		1,827		—
Short-term investments:
U.S. treasury securities		14,826		14,826		—		—
Commercial paper and corporate bonds		13,204		—		13,204		—
U.S. government agency bonds		4,743		—		4,743		—
Total short-term investments at fair value		32,773		14,826		17,947		—
Total assets at fair value	$	45,361	$	25,587	$	19,774	$	—


	December 31, 2023
	Fair Value		Cost Basis		Amounts Recognized in Accumulated Other Comprehensive Loss
					Unrealized Gains		Unrealized Losses
	(in thousands)
Available-for-sale securities:
U.S. Treasury securities	$	14,826	$	14,820	$	6	$	—
Commercial paper and corporate bonds	$	13,204	$	13,197	$	9	$	(2	)
U.S. government agency bonds		4,743		4,745		—		(2	)
Total available-for-sale securities at fair value	$	32,773	$	32,762	$	15	$	(4	)

Stockholders' Equity

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Stockholders' Equity

6. Stockholders’ Equity

Warrants

Stock Based Compensation

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Stock Based Compensation

. Stock Based Compensation

Stock-based Compensation Expenses


	Three months ended March 31,
	2024		2023
	(in thousands)
Options	$	390	$	831
RSUs		2,500		1,066
ESPP		—	45
Total stock-based compensation expense	$	2,890	$	1,942


	Three months ended March 31,
	2024						2023
	Continuing operations		Discontinued operations		Total		Continuing perations		Discontinued operations		Total
	(in thousands)
Cost of sales	$	302	$	79	$	381	$	139	$	9	$	148
Selling, general and administrative		1,724		199		1,923		1,540		22		1,562
Research and development		495		91		586		224		8		232
Total stock-based compensation expense	$	2,521	$	369	$	2,890	$	1,903	$	39	$	1,942


	Unamortized Compensation Costs		Weighted Average Service Period
	(in thousands)		(years)
Options	$	1,672	1.4
RSUs		5,427	2.4
Total unamortized compensation cost	$	7,099

Plan Activities

The following table summarizes stock option activity under the Company’s incentive plans:


	Number of Shares			Weighted Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life	Aggregate Intrinsic Value
						(in years)	(in thousands)
Options outstanding, December 31, 2023		2,383,641		$	2.86
Forfeited		(205,041	)	$	2.41
Expired		(28,081	)	$	1.10
Options outstanding, March 31, 2024		2,150,519		$	2.92	6.1	$	-
Options vested and exercisable, March 31, 2024		1,743,488		$	2.95	5.5	$	-

There were no options granted during the three months ended March 31, 2024 and 2023.

The following table summarizes the non-vested stock options that were outstanding as of March 31, 2024 and December 31, 2023:


	Number of Shares		Weighted Average Grant Date Fair Value
Non-vested Options, December 31, 2023		461,287	$	5.33
Non-vested Options, March 31, 2024		407,031	$	1.36

The total fair value of shares vested during the three months ended March 31, 2024 and 2023 was $0.3 million and $0.7 million, respectively.

The following table summarizes RSU activity under the Company’s incentive plans:


	Number of Shares			Weighted Average Grant Date Fair Value
RSUs outstanding, December 31, 2023		3,342,621		$	2.60
Granted		—			—
Vested		(813,349	)	$	3.26
Forfeited		(145,499	)	$	1.81
RSUs outstanding, March 31, 2024		2,383,773		$	2.42

During the three months ended March 31, 2024, vested RSUs included a total of 589,487 aforementioned immediately vested outstanding RSUs.

Leases

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Leases

8. Leases

As of March 31, 2024, the Company has not entered into any new leases that would entitle the Company to significant rights or create additional obligations.

Future minimum lease payments under these leases are as follows:


	Lease Amounts
	(in thousands)
2024 (remaining nine months)	$	937
2025		1,008
2026		892
2027		480
2028		122
Total future minimum lease payments		3,439
Less: Imputed Interest		(379	)
Present value of operating lease liabilities	$	3,060
Less: Current portion		1,172
Long-term operating lease liabilities	$	1,888

Weighted average remaining lease term in years		3.08
Weighted average discount rate		8.24	%

Variable operating lease expenses consist primarily of real estate taxes and insurance. The components of lease expense and related cash flows were as follows:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Rent expense	$	356	$	386
Variable lease costs		—		32
Total	$	356	$	418

Cash paid for operating leases	$	370	$	376


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Cost of sales	$	80	$	70
Selling, general and administrative		276		348
Total	$	356	$	418

Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

9. Commitments and Contingencies

Contingencies

Term Loan

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Term Loan

. Term Loan

Perceptive loan

Pursuant to the Third Amendment, future principal repayments and the net carrying value of the Perceptive Loan as of March 31, 2024, are as follows:


	Principal
	(in thousands)
Remaining 9 months of 2024	$	8,100
2025		10,800
2026		4,300
Total principal payment		23,200
Debt discounts		(1,489	)
Net carrying value	$	21,711


For 12-month Period Ending	Revenue
	(in thousands)
March 31, 2024	$	39,000
June 30, 2024	$	35,500
September 30, 2024	$	33,000
December 31, 2024	$	31,500
March 31, 2025	$	31,000
June 30, 2025	$	33,000
September 30, 2025	$	35,935
December 31, 2025	$	40,160
March 31, 2026	$	44,950
June 30, 2026	$	51,500

Income Taxes

3 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Income Taxes

11. Income Taxes

The Company monitors changes to the tax laws in the states it conducts business and files corporate income tax returns.

Segment Information

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Segment Information

12. Segment Information

Net Loss Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Net Loss Per Share

13. Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the periods presented:


	Three Months Ended March 31,
	2024			2023
	(in thousands, except shares and per share data)
Numerator:
Loss from continuing operations, net of tax	$	(12,189	)	$	(15,642	)
Income from discontinued operations, net of tax		5,427		271
Net loss	$	(6,762	)	$	(15,371	)
Denominator:
Weighted-average shares outstanding – basic and diluted		94,822,835			93,391,444
Net loss per share – basic and diluted	$	(0.07	)	$	(0.16	)


	Three Months Ended March 31,
	2024		2023
Stock options		2,150,519		2,748,494
RSUs		2,383,773		5,598,529
Warrants		323,284		331,503
Total		4,857,576		8,678,526

Summary Accounting Policies and Recent Accounting Pronouncements (Policies)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Use of Estimates

Inventory

Revenue Recognition

Contracts with Customers

Performance Obligations

The Company estimates related variable consideration at the point of sale, including discounts, product returns, refunds, and other similar obligations.

Contract liabilities


	March 31,		December 31,
	2024		2023
	(in thousands)
Total contract liabilities - extended service contracts	$	1,048	$	920
Less: long-term portion		281		302
Contract liabilities – current	$	767	$	618

Disaggregation of revenue

The following table provides information regarding disaggregated revenues and the timing of when goods and services are transferred:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Product revenue recognized at a point in time	$	6,730	$	8,524
Service revenue recognized over time		317		154
Total revenue	$	7,047	$	8,678

No individual customer accounted for more than 10% of sales for the three months ended March 31, 2024 and 2023.

Warranty Reserve

of future conditions and standard maintenance schedules. The Company evaluates this reserve on a regular basis and makes adjustments as necessary.

The following table provides a reconciliation of the change in estimated warranty liabilities for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,
	2024			2023
	(in thousands)
Balance at beginning of period	$	1,269		$	1,930
Provision for warranties issued		200			195
Warranty costs incurred		(427	)		(368	)
Balance at end of period	$	1,042		$	1,757
Current portion	$	980		$	1,335
Non-current portion		62			422
Total	$	1,042		$	1,757

The warranty liabilities, current and non-current, are included in other current liabilities and other liabilities, respectively, on the unaudited condensed consolidated balance sheets.

Recent Accounting Pronouncements

Accounting Pronouncement Recently Adopted

None.

Summary Accounting Policies and Recent Accounting Pronouncements (Tables)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Summary of Balances of Contract Liabilities


	March 31,		December 31,
	2024		2023
	(in thousands)
Total contract liabilities - extended service contracts	$	1,048	$	920
Less: long-term portion		281		302
Contract liabilities – current	$	767	$	618

Schedule of Revenues Disaggregated by Segment and Timing of Goods and Services Transferred

The following table provides information regarding disaggregated revenues and the timing of when goods and services are transferred:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Product revenue recognized at a point in time	$	6,730	$	8,524
Service revenue recognized over time		317		154
Total revenue	$	7,047	$	8,678

No individual customer accounted for more than 10% of sales for the three months ended March 31, 2024 and 2023.

Schedule of Reconciliation of Change in Estimated Warranty Liabilities

The following table provides a reconciliation of the change in estimated warranty liabilities for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,
	2024			2023
	(in thousands)
Balance at beginning of period	$	1,269		$	1,930
Provision for warranties issued		200			195
Warranty costs incurred		(427	)		(368	)
Balance at end of period	$	1,042		$	1,757
Current portion	$	980		$	1,335
Non-current portion		62			422
Total	$	1,042		$	1,757

Discontinued Operations (Tables)

3 Months Ended

Mar. 31, 2024

Discontinued Operations and Disposal Groups [Abstract]

Summary Of Operations and Comprehensive Loss And Balance Sheet Of Discontinued Operations


	Three Months Ended March 31,
	2024			2023
	(in thousands)
Revenue	$	1,389		$	2,046
Cost of sales		510			678
Gross profit		879			1,368
Operating expenses:
Selling, general and administrative		679			552
Research and development		476			567
(Loss) income from discontinued operations, net of tax		(276	)		249
Other income		—			22
Gain on sale of discontinued operations, net of tax		5,703			—
Net income from discontinued operations	$	5,427		$	271

The following table presented assets and liabilities of discontinued operations as of March 31, 2024 and December 31, 2023:


	March 31, 2024		December 31, 2023
	(in thousands)
Current assets:	$	1,162	$	656
Non-current assets:
Intangible assets, net		—		661
Goodwill		—		8,454
Other		—		482
Total assets of discontinued operations	$	1,162	$	10,253

Current liabilities:
Accounts payable		—		34
Accrued expenses		53		194
Accrued compensation		20		345
Operating lease liabilities		—		127
Total liabilities of discontinued operations	$	73	$	700

Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2024

Balance Sheet Related Disclosures [Abstract]

Schedule of Inventory

Inventory consisted of the following:


	March 31,		December 31,
	2024		2023
	(in thousands)
Raw materials	$	6,534	$	6,450
Work in process		338		278
Finished goods		5,244		4,346
Total inventory	$	12,116	$	11,074

Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis


	March 31, 2024
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	17,671	$	17,671	$	—	$	—
Total cash equivalents at fair value		17,671		17,671		—		—
Short-term investments:
U.S. treasury securities		5,697		5,697		—		—
Commercial paper and corporate bonds		9,312		—		9,312		—
Total short-term investments at fair value		15,009		5,697		9,312		—
Total assets at fair value	$	32,680	$	23,368	$	9,312	$	—


	December 31, 2023
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	10,761	$	10,761	$	—	$	—
Corporate Bonds		1,827		—		1,827		—
Total cash equivalents at fair value		12,588		10,761		1,827		—
Short-term investments:
U.S. treasury securities		14,826		14,826		—		—
Commercial paper and corporate bonds		13,204		—		13,204		—
U.S. government agency bonds		4,743		—		4,743		—
Total short-term investments at fair value		32,773		14,826		17,947		—
Total assets at fair value	$	45,361	$	25,587	$	19,774	$	—

Summary of Short-Term Investments


	March 31, 2024
	Fair Value		Cost Basis		Amounts Recognized in Accumulated Other Comprehensive Loss
					Unrealized Gains		Unrealized Losses
	(in thousands)
Available-for-sale securities:
U.S. treasury securities	$	5,697	$	5,697	$	—	$	—
Commercial paper and corporate bonds	$	9,312		9,313		1		(2	)
Total available-for-sale securities at fair value	$	15,009	$	15,010	$	1	$	(2	)


	December 31, 2023
	Fair Value		Cost Basis		Amounts Recognized in Accumulated Other Comprehensive Loss
					Unrealized Gains		Unrealized Losses
	(in thousands)
Available-for-sale securities:
U.S. Treasury securities	$	14,826	$	14,820	$	6	$	—
Commercial paper and corporate bonds	$	13,204	$	13,197	$	9	$	(2	)
U.S. government agency bonds		4,743		4,745		—		(2	)
Total available-for-sale securities at fair value	$	32,773	$	32,762	$	15	$	(4	)

Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-Based Compensation Expense


	Three months ended March 31,
	2024		2023
	(in thousands)
Options	$	390	$	831
RSUs		2,500		1,066
ESPP		—	45
Total stock-based compensation expense	$	2,890	$	1,942


	Three months ended March 31,
	2024						2023
	Continuing operations		Discontinued operations		Total		Continuing perations		Discontinued operations		Total
	(in thousands)
Cost of sales	$	302	$	79	$	381	$	139	$	9	$	148
Selling, general and administrative		1,724		199		1,923		1,540		22		1,562
Research and development		495		91		586		224		8		232
Total stock-based compensation expense	$	2,521	$	369	$	2,890	$	1,903	$	39	$	1,942

Schedule of Unamortized Compensation Cost and Weighted Average Service Period of Unvested Outstanding Awards

The following table presents the unamortized compensation cost and weighted average service period of all unvested outstanding awards as of March 31, 2024.


	Unamortized Compensation Costs		Weighted Average Service Period
	(in thousands)		(years)
Options	$	1,672	1.4
RSUs		5,427	2.4
Total unamortized compensation cost	$	7,099

Summary of Stock Option Activity under Incentive Plans

The following table summarizes stock option activity under the Company’s incentive plans:


	Number of Shares			Weighted Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life	Aggregate Intrinsic Value
						(in years)	(in thousands)
Options outstanding, December 31, 2023		2,383,641		$	2.86
Forfeited		(205,041	)	$	2.41
Expired		(28,081	)	$	1.10
Options outstanding, March 31, 2024		2,150,519		$	2.92	6.1	$	-
Options vested and exercisable, March 31, 2024		1,743,488		$	2.95	5.5	$	-

Summary of Non Vested Stock Options

The following table summarizes the non-vested stock options that were outstanding as of March 31, 2024 and December 31, 2023:


	Number of Shares		Weighted Average Grant Date Fair Value
Non-vested Options, December 31, 2023		461,287	$	5.33
Non-vested Options, March 31, 2024		407,031	$	1.36

Summary of RSU Activity under Incentive Plans

The following table summarizes RSU activity under the Company’s incentive plans:


	Number of Shares			Weighted Average Grant Date Fair Value
RSUs outstanding, December 31, 2023		3,342,621		$	2.60
Granted		—			—
Vested		(813,349	)	$	3.26
Forfeited		(145,499	)	$	1.81
RSUs outstanding, March 31, 2024		2,383,773		$	2.42

Leases (Tables)

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Summary of Future Minimum Lease Payments

Future minimum lease payments under these leases are as follows:


	Lease Amounts
	(in thousands)
2024 (remaining nine months)	$	937
2025		1,008
2026		892
2027		480
2028		122
Total future minimum lease payments		3,439
Less: Imputed Interest		(379	)
Present value of operating lease liabilities	$	3,060
Less: Current portion		1,172
Long-term operating lease liabilities	$	1,888

Weighted average remaining lease term in years		3.08
Weighted average discount rate		8.24	%

Components of Lease Expense and Related Cash Flows

The components of lease expense and related cash flows were as follows:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Rent expense	$	356	$	386
Variable lease costs		—		32
Total	$	356	$	418

Cash paid for operating leases	$	370	$	376


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Cost of sales	$	80	$	70
Selling, general and administrative		276		348
Total	$	356	$	418

Term Loan (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Schedule of Future Principal Repayments of Term Loan

Pursuant to the Third Amendment, future principal repayments and the net carrying value of the Perceptive Loan as of March 31, 2024, are as follows:


	Principal
	(in thousands)
Remaining 9 months of 2024	$	8,100
2025		10,800
2026		4,300
Total principal payment		23,200
Debt discounts		(1,489	)
Net carrying value	$	21,711

Schedule of Future Minimum Revenue Thresholds


For 12-month Period Ending	Revenue
	(in thousands)
March 31, 2024	$	39,000
June 30, 2024	$	35,500
September 30, 2024	$	33,000
December 31, 2024	$	31,500
March 31, 2025	$	31,000
June 30, 2025	$	33,000
September 30, 2025	$	35,935
December 31, 2025	$	40,160
March 31, 2026	$	44,950
June 30, 2026	$	51,500

Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the periods presented:


	Three Months Ended March 31,
	2024			2023
	(in thousands, except shares and per share data)
Numerator:
Loss from continuing operations, net of tax	$	(12,189	)	$	(15,642	)
Income from discontinued operations, net of tax		5,427		271
Net loss	$	(6,762	)	$	(15,371	)
Denominator:
Weighted-average shares outstanding – basic and diluted		94,822,835			93,391,444
Net loss per share – basic and diluted	$	(0.07	)	$	(0.16	)

Summary of Potentially Dilutive Securities Excluded from the Computation of Diluted Net Loss Per Share


	Three Months Ended March 31,
	2024		2023
Stock options		2,150,519		2,748,494
RSUs		2,383,773		5,598,529
Warrants		323,284		331,503
Total		4,857,576		8,678,526

Organization and Basis of Presentation - Additional Information (Details) $ / shares in Units, $ in Thousands, shares in Millions		3 Months Ended
	Sep. 27, 2022 USD ($) $ / shares shares	Mar. 31, 2024 USD ($) Segment $ / shares	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) $ / shares
Organization And Basis Of Presentation [Line Items]
Warrant exercise price per share \| $ / shares		$ 10.95		$ 12
Cash and cash equivalents and short-term investments		$ 33,600
Cash and cash equivalents		18,580		$ 14,009
Accumulated deficit		(436,775)		$ (430,013)
Net loss		(12,189)	$ (15,642)
Cash and cash equivalents used in operations		10,689	$ 16,976
Gain on sale of discontinued operations, net of tax		5,703
Principal payments on outstanding borrowings		$ 15,000
Operating and Reportable segments \| Segment		2
Term Loan
Organization And Basis Of Presentation [Line Items]
Principal outstanding		$ 23,200
Private Placement
Organization And Basis Of Presentation [Line Items]
Common stock shares issued \| shares	23.0
Public offering price per share \| $ / shares	$ 0.95
Proceeds from issuance of common stock net of underwriting discounts and commissions and other offering expenses	$ 59,000
Prefunded Warrants
Organization And Basis Of Presentation [Line Items]
Common stock shares issued \| shares	43.3
Public offering price per share \| $ / shares	$ 0.949
Warrant exercise price per share \| $ / shares	$ 0.001
Software
Organization And Basis Of Presentation [Line Items]
Substantial assets		0
Substantial operations		$ 0

Summary Accounting Policies and Recent Accounting Pronouncements - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) Customer	Mar. 31, 2023 USD ($) Customer
Summary Of Accounting Policies [Line Items]
Revenue, practical expedient, incremental cost of obtaining contract [true false]	true
Revenue recognized \| $	$ 0.2	$ 0.1
Customer Concentration Risk \| Sales
Summary Of Accounting Policies [Line Items]
Number of customer accounted for sales \| Customer	0	0
GentleWave Systems \| Maximum
Summary Of Accounting Policies [Line Items]
Standard product warranty period	2 years	2 years

Summary Accounting Policies and Recent Accounting Pronouncements - Summary of Balances of Contract Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Summary Of Accounting Policies [Line Items]
Less: long-term portion	$ 281	$ 302
Contract liabilities – current	767	618
Extended Service Contracts
Summary Of Accounting Policies [Line Items]
Total contract liabilities	$ 1,048	$ 920

Summary Accounting Policies and Recent Accounting Pronouncements - Schedule of Revenues Disaggregated by Segment and Timing of Goods and Services Transferred (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Summary Of Accounting Policies [Line Items]
Total revenue	$ 7,047	$ 8,678
Product \| Point in Time
Summary Of Accounting Policies [Line Items]
Total revenue	6,730	8,524
Product \| Over Time
Summary Of Accounting Policies [Line Items]
Total revenue	$ 317	$ 154

Summary Accounting Policies and Recent Accounting Pronouncements - Schedule of Reconciliation of Change in Estimated Warranty (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounting Policies [Abstract]
Balance at beginning of period	$ 1,269	$ 1,930
Provision for warranties issued	200	195
Warranty costs incurred	(427)	(368)
Balance at end of period	1,042	1,757
Current portion	980	1,335
Non-current portion	62	422
Total	$ 1,042	$ 1,757

Discontinued Operations - Additional Information (Details) - Disposed of by Sale - TDO Software, Inc. $ in Millions	Mar. 01, 2024 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale consideration	$ 16.0
Sale consideration amount received	15.0
Sale consideration due	$ 1.0
Balance amount receivable period	12 months

Discontinued Operations - Summary Of Statements of Operations and Comprehensive Loss From Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Discontinued Operations and Disposal Groups [Abstract]
Revenue	$ 1,389	$ 2,046
Cost of sales	510	678
Gross profit	879	1,368
Selling, general and administrative	679	552
Research and development	476	567
(Loss) income from discontinued operations, net of tax	(276)	249
Other income		22
Gain on sale of discontinued operations, net of tax	5,703
Net income from discontinued operations	$ 5,427	$ 271

Discontinued Operations - Summary Of Assets And Liabilities Of Discontinued Operations (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Current assets	$ 1,162	$ 656
Non-current assets:
Intangible assets, net		661
Goodwill		8,454
Other		482
Total assets of discontinued operations	1,162	10,253
Current liabilities:
Accounts payable		34
Accrued expenses	53	194
Accrued compensation	20	345
Operating lease liabilities		127
Total liabilities of discontinued operations	$ 73	$ 700

Balance Sheet Components - Schedule of Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Balance Sheet Related Disclosures [Abstract]
Raw materials	$ 6,534	$ 6,450
Work in process	338	278
Finished goods	5,244	4,346
Total inventory	$ 12,116	$ 11,074

Balance Sheet Components - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Reserve for excess and obsolete inventory	$ 0.8	$ 0.8

Fair Value of Financial Instruments - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Total assets at fair value	$ 15,009	$ 32,773
Investment, Type [Extensible Enumeration]	Short-Term Investments	Short-Term Investments
U.S. Treasury Securities
Assets:
Total assets at fair value	$ 5,697	$ 14,826
Commercial Paper and Corporate Bonds
Assets:
Total assets at fair value	9,312	13,204
U.S. Government Agency Bonds
Assets:
Total assets at fair value		4,743
Fair Value Measurements Recurring Basis
Assets:
Total cash equivalents at fair value	17,671	12,588
Total assets at fair value	32,680	45,361
Fair Value Measurements Recurring Basis \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Total cash equivalents at fair value	17,671	10,761
Total assets at fair value	23,368	25,587
Fair Value Measurements Recurring Basis \| Significant Other Observable Inputs (Level 2)
Assets:
Total cash equivalents at fair value		1,827
Total assets at fair value	9,312	19,774
Fair Value Measurements Recurring Basis \| Short-Term Investments
Assets:
Total assets at fair value	15,009	32,773
Fair Value Measurements Recurring Basis \| Short-Term Investments \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Total assets at fair value	5,697	14,826
Fair Value Measurements Recurring Basis \| Short-Term Investments \| Significant Other Observable Inputs (Level 2)
Assets:
Total assets at fair value	9,312	17,947
Fair Value Measurements Recurring Basis \| Money Market Funds
Assets:
Total cash equivalents at fair value	17,671	10,761
Fair Value Measurements Recurring Basis \| Money Market Funds \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Total cash equivalents at fair value	17,671	10,761
Fair Value Measurements Recurring Basis \| Corporate Bonds
Assets:
Total cash equivalents at fair value		1,827
Fair Value Measurements Recurring Basis \| Corporate Bonds \| Significant Other Observable Inputs (Level 2)
Assets:
Total cash equivalents at fair value		1,827
Fair Value Measurements Recurring Basis \| U.S. Treasury Securities
Assets:
Total assets at fair value	5,697	14,826
Fair Value Measurements Recurring Basis \| U.S. Treasury Securities \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Total assets at fair value	5,697	14,826
Fair Value Measurements Recurring Basis \| Commercial Paper and Corporate Bonds
Assets:
Total assets at fair value	9,312	13,204
Fair Value Measurements Recurring Basis \| Commercial Paper and Corporate Bonds \| Significant Other Observable Inputs (Level 2)
Assets:
Total assets at fair value	$ 9,312	13,204
Fair Value Measurements Recurring Basis \| U.S. Government Agency Bonds
Assets:
Total cash equivalents at fair value		4,743
Fair Value Measurements Recurring Basis \| U.S. Government Agency Bonds \| Significant Other Observable Inputs (Level 2)
Assets:
Total cash equivalents at fair value		$ 4,743

Fair Value of Financial Instruments - Summary of Short-Term Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Available-for-sale securities:
Fair Value	$ 15,009	$ 32,773
Cost Basis	15,010	32,762
Amounts Recognized in Accumulated Other Comprehensive Loss, Unrealized Gains	1	15
Amounts Recognized in Accumulated Other Comprehensive Loss, Unrealized Losses	(2)	(4)
U.S. Treasury Securities
Available-for-sale securities:
Fair Value	5,697	14,826
Cost Basis	5,697	14,820
Amounts Recognized in Accumulated Other Comprehensive Loss, Unrealized Gains		6
Amounts Recognized in Accumulated Other Comprehensive Loss, Unrealized Losses		0
Commercial Paper and Corporate Bonds
Available-for-sale securities:
Fair Value	9,312	13,204
Cost Basis	9,313	13,197
Amounts Recognized in Accumulated Other Comprehensive Loss, Unrealized Gains	1	9
Amounts Recognized in Accumulated Other Comprehensive Loss, Unrealized Losses	$ (2)	(2)
U.S. Government Agency Bonds
Available-for-sale securities:
Fair Value		4,743
Cost Basis		4,745
Amounts Recognized in Accumulated Other Comprehensive Loss, Unrealized Losses		$ (2)

Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Sep. 27, 2022	Mar. 31, 2024	Dec. 31, 2023	Apr. 30, 2022
Class Of Stock [Line Items]
Number of warrants issued		19,179	304,105
Warrant exercise price per share		$ 10.95	$ 12
Number of warrants outstanding		19,179	304,105
Minimum
Class Of Stock [Line Items]
Warrants expiration date		2024-06
Maximum
Class Of Stock [Line Items]
Warrants expiration date		2031-08
Term Loan \| Perceptive Credit Holdings III, LP
Class Of Stock [Line Items]
Warrant exercise price per share				$ 12
Term Loan \| Perceptive Credit Holdings III, LP \| Common Stock
Class Of Stock [Line Items]
Number of warrants issued				304,105
Private Placement
Class Of Stock [Line Items]
Common stock shares issued	23,000,000
Price per share	$ 0.95
Proceeds from the issuance of common stock, net of issuance costs	$ 59.0
Prefunded Warrants
Class Of Stock [Line Items]
Number of warrants issued		6,100,000
Warrant exercise price per share	$ 0.001
Number of warrants outstanding		24,900,000
Common stock shares issued	43,300,000
Price per share	$ 0.949
Percentage of exercisability of warrants		9.99%
Threshold percentage of warrants		19.99%

Stock Based Compensation - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	$ 2,890	$ 1,942
Continuing operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	2,521	1,903
Discontinued operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	369	39
Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	390	831
RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	2,500	1,066
ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense		45
Cost of Sales
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	381	148
Cost of Sales \| Continuing operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	302	139
Cost of Sales \| Discontinued operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	79	9
Selling, General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	1,923	1,562
Selling, General and Administrative \| Continuing operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	1,724	1,540
Selling, General and Administrative \| Discontinued operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	199	22
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	586	232
Research and Development \| Continuing operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	495	224
Research and Development \| Discontinued operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	$ 91	$ 8

Stock Based Compensation - Schedule of Unamortized Compensation Cost and Weighted Average Service Period of Unvested Outstanding Awards (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unamortized Compensation Costs	$ 7,099
Options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unamortized Compensation Costs	$ 1,672
Weighted Average Service Period	1 year 4 months 24 days
RSUs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unamortized Compensation Costs	$ 5,427
Weighted Average Service Period	2 years 4 months 24 days

Stock Based Compensation - Summary of Stock Option Activity under Incentive Plans (Details)	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Share-Based Payment Arrangement [Abstract]
Number of Shares, Options Outstanding, Beginning Balance \| shares	2,383,641
Number of Shares, Forfeited \| shares	(205,041)
Number of Shares, Expired \| shares	(28,081)
Number of Shares, Options Outstanding, Ending Balance \| shares	2,150,519
Number of Shares, Options vested and exercisable at March 31, 2024 \| shares	1,743,488
Weighted Average Exercise Price Per Share, Options Outstanding, Beginning Balance \| $ / shares	$ 2.86
Weighted Average Exercise Price Per Share, Forfeited \| $ / shares	2.41
Weighted Average Exercise Price Per Share, Expired \| $ / shares	1.1
Weighted Average Exercise Price Per Share, Ending Balance \| $ / shares	2.92
Weighted Average Exercise Price Per Share, Options vested and exercisable, March 31, 2024 \| $ / shares	$ 2.95
Weighted-Average Remaining Contractual Life (Years) Outstanding at March 31, 2024	6 years 1 month 6 days
Weighted-Average Remaining Contractual Life (in years) Options vested and exercisable, March 31, 2024	5 years 6 months

Stock Based Compensation - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares, options granted (shares)	0	0
Fair value of shares vested	$ 300	$ 700
Unamortized compensation expense	7,099
Compensation cost recognized	2,890	1,942
Cost of Sales
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	381	148
Selling, General and Administrative
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	1,923	1,562
Research and Development
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	586	232
Continuing operations
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	2,521	1,903
Continuing operations \| Cost of Sales
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	302	139
Continuing operations \| Selling, General and Administrative
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	1,724	1,540
Continuing operations \| Research and Development
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	495	224
Discontinued operations
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	369	39
Discontinued operations \| Cost of Sales
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	79	9
Discontinued operations \| Selling, General and Administrative
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	199	22
Discontinued operations \| Research and Development
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation cost recognized	$ 91	8
RSUs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares vested	813,349
Number of shares vested	589,487
Unamortized compensation expense	$ 5,427
Compensation cost recognized	$ 2,500	$ 1,066
RSUs \| Continuing operations
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares vested	457,093
Unamortized compensation expense	$ 1,600
RSUs \| Continuing operations \| Cost of Sales
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unamortized compensation expense	300
RSUs \| Continuing operations \| Selling, General and Administrative
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unamortized compensation expense	800
RSUs \| Continuing operations \| Research and Development
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unamortized compensation expense	$ 400
RSUs \| Discontinued operations
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares vested	132,394
Unamortized compensation expense	$ 300

Stock Based Compensation - Summary of Non Vested Options (Details) - Options	Mar. 31, 2024 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Shares, Non-vested Options, December 31, 2023 \| shares	461,287
Number of Shares, Non-vested Options, March 31, 2024 \| shares	407,031
Weighted Average Grant Date Fair Value, Non-vested Options, December 31, 2023 \| $ / shares	$ 5.33
Weighted Average Grant Date Fair Value, Non-vested Options, March 31, 2024 \| $ / shares	$ 1.36

Stock Based Compensation - Summary of RSU Activity under Incentive Plans (Details) - RSUs	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Shares, RSUs outstanding, Beginning Balance \| shares	3,342,621
Number of Shares, Vested \| shares	(813,349)
Number of Shares, Forfeited \| shares	(145,499)
Number of Shares, RSUs outstanding, Ending Balance \| shares	2,383,773
Weighted Average Grant Date Fair Value, RSUs outstanding, Beginning Balance \| $ / shares	$ 2.6
Weighted Average Exercise Date Fair Value, Exercised \| $ / shares	3.26
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	1.81
Weighted Average Grant Date Fair Value, RSUs outstanding, Ending Balance \| $ / shares	$ 2.42

Leases - Additional Information (Details)	3 Months Ended
Leases - Additional Information (Details)	Mar. 31, 2024
Leases [Abstract]
Operating lease description	The Company leases office space under operating leases with expirations ranging from March 2025 to March 2028, some of which include rent escalations or an option to extend the lease for up to three years per renewal. The exercise of lease renewal options is at the sole discretion of the Company.
Operating lease renewal term	3 years
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Operating lease, not yet commenced, description	the Company has not entered into any new leases that would entitle the Company to significant rights or create additional obligations.

Leases - Summary of Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
2024 (remaining nine months)	$ 937
2025	1,008
2026	892
2027	480
2028	122
Total future minimum lease payments	3,439
Less: Imputed Interest	(379)
Present value of operating lease liabilities	3,060
Less: Current portion	1,172	$ 1,250
Long-term operating lease liabilities	$ 1,888	$ 1,423
Weighted average remaining lease term in years	3 years 29 days
Weighted average discount rate	8.24%

Leases - Components of Lease Expense and Related Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Lessee, Lease, Description [Line Items]
Rent expense	$ 356	$ 386
Variable lease costs		32
Lease costs	356	418
Cash paid for operating leases	370	376
Cost of Sales
Lessee, Lease, Description [Line Items]
Lease costs	80	70
Selling, General and Administrative
Lessee, Lease, Description [Line Items]
Lease costs	$ 276	$ 348

Term Loan - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		12 Months Ended
	Mar. 01, 2024	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Number of warrants issued		19,179		19,179	304,105
Purchase price per share of warrant		$ 10.95		$ 10.95	$ 12
Principal repayment		$ 16,800
Revenue				$ 41,600
Cash and cash equivalents and short-term investments		33,600		33,600
Amended Perceptive Loan Agreement
Debt Instrument [Line Items]
Aggregate minimum cash balance		$ 3,000		$ 3,000
Amended Perceptive Loan Agreement \| Prepayments Made After August 23, 2025
Debt Instrument [Line Items]
Debt instrument prepayment premium percentage		0.00%		0.00%
Third Amendment
Debt Instrument [Line Items]
Debt instrument covenant description		Pursuant to the Third Amendment, the lender also waived the covenant requiring the absence of any “going concern” or like qualification or exception or any qualification or exception as to the scope of the audit, solely with respect to the fiscal year ending on December 31, 2023.Failure to satisfy any covenants would constitute an event of default under the Amended Perceptive Loan Agreement. In the event of an event of default, the lender may terminate its commitments and declare all amounts outstanding under the Amended Perceptive Loan Agreement immediately due and payable, together with accrued interest and all fees and other obligations. The amount of such repayment will include payment of any prepayment premium applicable due to the time of such payment. In addition, upon the occurrence and during the continuance of any event of default, the applicable margin will increase by 3.00% per annum to 12.25%.
Principal repayment	$ 15,000
Amortization payment	$ 1,800
Frequency of periodic payments	monthly
Debt instrument periodic payment	$ 900
Payment commencement date	Apr. 30, 2024
Unamortized debt issuance cost expensed	$ 1,000
Minimum \| Amended Perceptive Loan Agreement
Debt Instrument [Line Items]
Effective interest rate percentage		3.00%		3.00%
Minimum \| Amended Perceptive Loan Agreement \| Prepayments Made After August 23, 2022 and Before August 23, 2025
Debt Instrument [Line Items]
Debt instrument prepayment premium percentage		1.00%		1.00%
Maximum \| Amended Perceptive Loan Agreement
Debt Instrument [Line Items]
Effective interest rate percentage		12.25%		12.25%
Maximum \| Amended Perceptive Loan Agreement \| Prepayments Made After August 23, 2022 and Before August 23, 2025
Debt Instrument [Line Items]
Debt instrument prepayment premium percentage		7.00%		7.00%
SOFR Plus 2% \| Minimum \| Amended Perceptive Loan Agreement
Debt Instrument [Line Items]
Additional interest rate on borrowing		2.00%	2.00%
Interest rate margin on borrowings		9.25%	9.25%
Perceptive Credit Holdings III, LP
Debt Instrument [Line Items]
Effective interest rate percentage		21.22%	16.71%	21.22%

Term Loan - Schedule of Future Principal Repayments of Term Loan (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Debt Disclosure [Abstract]
Remaining 9 months of 2024	$ 8,100
2025	10,800
2026	4,300
Total	23,200
Debt discounts	(1,489)
Net carrying value	$ 21,711

Term Loan - Schedule of Future Minimum Revenue Threshold (Details) - Third Amendment - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024
Debt Instrument [Line Items]
Minimum Revenue Thresholds Amount										$ 39,000
Forecast
Debt Instrument [Line Items]
Minimum Revenue Thresholds Amount	$ 51,500	$ 44,950	$ 40,160	$ 35,935	$ 33,000	$ 31,000	$ 31,500	$ 33,000	$ 35,500

Income Taxes - Additional Information (Details)	3 Months Ended
Income Taxes - Additional Information (Details)	Mar. 31, 2024
Internal Revenue Code \| R&D credit carryforwards
Income Tax Contingency [Line Items]
Ownership change percentage	50.00%
Federal
Income Tax Contingency [Line Items]
Open tax year	2021 2022 2023
State
Income Tax Contingency [Line Items]
Open tax year	2020 2021 2022 2023

Segment Information - Additional Information (Details) - Software $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Substantial assets	$ 0
Substantial operations	$ 0

Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Loss from continuing operations, net of tax	$ (12,189)	$ (15,642)
Income from discontinued operations, net of tax	5,427	271
Net loss	$ (6,762)	$ (15,371)
Denominator:
Weighted-average shares outstanding - basic	94,822,835	93,391,444
Weighted-average shares outstanding - diluted	94,822,835	93,391,444
Net loss per share - basic	$ (0.07)	$ (0.16)
Net loss per share - diluted	$ (0.07)	$ (0.16)

Net Loss Per Share - Summary of Potentially Dilutive Securities Excluded from the Computation of Diluted Net Loss Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities	4,857,576	8,678,526
Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities	2,150,519	2,748,494
RSUs
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities	2,383,773	5,598,529
Warrants
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities	323,284	331,503

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