S SentinelOne Inc

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(a)

This Statement is being filed jointly on behalf of the following persons (each, a “Reporting Person”, and collectively, the “Reporting Persons”): (i) Insight Venture Partners X, L.P., a Cayman Islands exempted limited partnership (“IVP X”); (ii) Insight Venture Partners (Cayman) X, L.P., a Cayman Islands exempted limited partnership (“IVP Cayman X”); (iii) Insight Venture Partners (Delaware) X, L.P., a Delaware limited partnership (“IVP Delaware X”); (iv) Insight Venture Partners X (Co-Investors), L.P., a Cayman Islands exempted limited partnership (“IVP Co-Investors X” and, together with IVP X, IVP Cayman X and IVP Delaware X, the “IVP X Funds”); (v) Insight Partners XI, L.P., a Cayman Islands exempted limited partnership (“IP XI”); (vi) Insight Partners (Cayman) XI, L.P., a Cayman Islands exempted limited partnership (“IP Cayman XI”); (vii) Insight Partners (Delaware) XI, L.P., a Delaware limited partnership (“IP Delaware XI”); (viii) Insight Partners XI (Co-Investors), L.P., a Cayman Islands exempted limited partnership (“IP Co-Investors XI”); (ix) Insight Partners XI (Co-Investors) (B), L.P., a Cayman Islands exempted limited partnership (“IP Co-Investors B XI”); (x) Insight Partners (EU) XI, S.C.Sp., a Luxembourg special limited partnership (“IP EU XI” and, together with IP XI, IP Cayman XI, IP Delaware XI, IP Co-Investors XI and IP Co-Investors B XI, the “IP XI Funds”); (xi) Insight Partners Fund X Follow-On Fund, L.P., a Cayman Islands exempted limited partnership (“IP X FOF”); (xii) Insight Partners Fund X (Cayman) Follow-On Fund, L.P., a Cayman Islands exempted limited partnership (“IP X Cayman FOF”); (xiii) Insight Partners Fund X (Delaware) Follow-On Fund, L.P., a Delaware limited partnership (“IP X Delaware FOF”); (xiv) Insight Partners Fund X (Co-Investors) Follow-On Fund, L.P., a Cayman Islands exempted limited partnership (“IP X Co-Investors FOF” and, together with IP X FOF, IP X Cayman FOF and IP X Delaware FOF, the “IP X FOF Funds”); (xv) Insight Venture Associates X, L.P., a Cayman Islands exempted limited partnership (“IVA X”); (xvi) Insight Venture Associates X, Ltd., a Cayman Islands exempted company (“IVA X Ltd”); (xvii) Insight Associates XI, L.P., a Cayman Islands exempted limited partnership (“IA XI”); (xviii) Insight Associates XI, Ltd., a Cayman Islands exempted company (“IA XI Ltd”); (xix) Insight Associates (EU) XI, S.a.r.l., a Luxembourg limited liability company (“IA EU XI”); (xx) Insight Associates Fund X Follow-On, L.P., a Cayman Islands exempted limited partnership (“IA X FOF”); (xxi) Insight Associates Fund X Follow-On, Ltd., a Cayman Islands exempted company (“IA X FOF Ltd”); and (xxii) Insight Holdings Group, LLC, a Delaware limited liability company (“Holdings”). 

(b)

The address of the principal office of each Reporting Person is c/o Insight Partners, 1114 Avenue of the Americas, 36th Floor, New York, NY 10036.  Schedule I hereto sets forth the address of the principal office of each Scheduled Person.

(c)

The principal business of each of the IVP X Funds, IP XI Funds and IP X FOF Funds is making private equity, venture capital and related investments.  The principal business of IVA X, IA XI, IA EU XI and IA X FOF is acting as the general partner of the IVP X Funds, the IP XI Funds (other than IP EU XI), IP EU XI and the IP X FOF Funds, respectively. The principal business of IVA X Ltd, IA XI Ltd and IA X FOF Ltd is acting as the general partner of IVA X, IA XI and IA X FOF, respectively. The principal business of Holdings is acting as the shareholder of IVA X Ltd, IA XI Ltd, IA EU XI, IA X FOF Ltd and other affiliated entities.  Schedule I hereto sets forth the principal occupation or employment of each Scheduled Person.

(d)

During the last five years, none of the Reporting Persons or Scheduled Persons has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

(e)

During the last five years, none of the Reporting Persons or Scheduled Persons has been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violations with respect to such laws.

(f)

IVP Delaware X, IP Delaware XI, IP X Delaware FOF and Holdings are organized under the laws of the State of Delaware. IP EU XI and IA EU XI are organized under the laws of Luxembourg. The other Reporting Persons are organized under the laws of the Cayman Islands.  Schedule I hereto sets forth the citizenship of each Scheduled Person.

(a)

and (b)

(1)

Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time and will convert automatically upon certain transfers and upon the earlier of (i) the date specified by a vote of the holders of 66 2/3% of the then outstanding shares of Class B Common Stock, (ii) seven years from the effective date of the IPO, (iii) the first date following the IPO on which the number of shares of outstanding Class B Common Stock (including shares of Class B Common Stock subject to outstanding stock options) held by Tomer Weingarten, including certain entities that Mr. Weingarten controls, is less than 25% of the number of shares of Class B Common Stock (including shares of Class B Common Stock subject to outstanding stock options) that Mr. Weingarten originally held as of the date of the IPO, (iv) the date fixed by the Issuer’s board of directors (the “Board”), following the first date following the completion of the IPO when Mr. Weingarten is no longer providing services to the Issuer as an officer, employee, consultant or member of the Board, (v) the date fixed by the Board following the date, if applicable, on which Mr. Weingarten is terminated for cause, as defined in the Issuer’s restated certificate of incorporation, and (vi) the date that is 12 months after the death or disability, as defined in the Issuer’s restated certificate of incorporation, of Mr. Weingarten.

(2)

Based on the quotient obtained by dividing (a) the aggregate number of shares of Class A Common Stock and Class B Common Stock beneficially owned by the Reporting Person, by (b) the sum of (i) 41,678,568 shares of Class A Common Stock outstanding after the IPO and the private placement and assuming the underwriters exercise their over-allotment option in full, and (ii) the number of shares of Class B Common Stock beneficially owned by the Reporting Persons. The number of shares of Class B Common Stock beneficially owned by the Reporting Person(s) are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person for the purpose of this Statement.

(3)

The Class B Common Stock has 20 votes per share, and the Class A Common Stock has one vote per share.  The percentage ownership of the Reporting Person reported in this Statement does not give effect to the 20 votes per share of Class B Common Stock because the shares of Class B Common Stock are treated as converted into Class A Common Stock for the purpose of this Statement.

(c)

Except as described in this Statement, during the last 60 days, none of the Reporting Persons has effected any transaction involving shares of Class A Common Stock.

(d)

Except as set forth in this Item 5, no person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Class A Common Stock or Class B Common Stock that may be deemed to be beneficially owned by the Reporting Persons.

(e)

Not applicable.