FORM 4
☒ Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

PORTER BIGGS C		 2. Issuer Name and Ticker or Trading Symbol

Maxar Technologies Inc. [ MAXR ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
EVP, CFO
(Last)          (First)          (Middle)

1300 W. 120TH AVENUE		 3. Date of Earliest Transaction (MM/DD/YYYY)

5/3/2023
(Street)

WESTMINSTER, CO 80234		 4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
 6. Individual or Joint/Group Filing (Check Applicable Line)

_X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)        (State)        (Zip)
Rule 10b5-1(c) Transaction Indication
☐ Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 5/3/2023  A  99912 (1)A (1)399612 (1)D  
Common Stock 5/3/2023  D  399612 (1)(2)D (1)(2)0 D  
Common Stock 5/3/2023  A  99 (2)D (2)0 I By Trust (3)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)		2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)		8. Price of Derivative Security
(Instr. 5)		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Common Stock Appreciation Right $36.44 (4)5/3/2023  D     10307  5/3/2023 8/15/2028 Common Stock 0 $0.00 (4)0 D  
Explanation of Responses:
(1) Pursuant to the Agreement and Plan of Merger dated as of Dec. 15, 2022 by and among the Issuer, Galileo Parent, Inc., a Delaware corporation, Galileo Bidco, Inc., a Delaware corporation, and Galileo Topco, Inc., a Delaware corporation ("Merger Agreement"), the number of shares of Issuer common stock underlying restricted stock units previously awarded by the Issuer that were subject to performance-based vesting conditions was deemed to equal the target number of shares subject to the applicable award multiplied by the applicable performance percentage set forth in the Merger Agreement. In accordance with the Merger Agreement, these awards converted into the right to receive a cash payment (without interest and subject to applicable taxes) equal to the amount obtained by multiplying the foregoing number of shares underlying each such award by $53.00, with the aggregate amount of such payment rounded down to the nearest cent.
(2) Pursuant to the Merger Agreement, each share of Issuer common stock, par value $0.0001 per share, and each share of Issuer common stock underlying restricted stock units subject to time-based vesting conditions, automatically and without any required action by the Reporting Person, was converted into the right to receive a cash payment (without interest and subject to any applicable taxes) of $53.00.
(3) The Reporting Person is the Co-Trustee of the Biggs Cunningham Porter Trust.
(4) Pursuant to the Merger Agreement, awards of stock appreciation rights ("SARs") previously granted by the Issuer were converted into the right to receive a cash payment (without interest and subject to any applicable taxes) equal to the product obtained by multiplying the total number of shares of Issuer common stock covered by such award, by the excess, if any, of $53.00 over the applicable exercise price of such SAR, with the aggregate amount of such payment rounded down to the nearest cent.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
PORTER BIGGS C
1300 W. 120TH AVENUE
WESTMINSTER, CO 80234

EVP, CFO
Signatures
/s/ Eric J. Pagels, attorney-in-fact for Biggs C. Porter5/5/2023
**Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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