SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Justice Angela (Last) (First) (Middle) C/O TCR2 THERAPEUTICS 100 BINNEY STREET (Street) CAMBRIDGE MA 02142 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol TCR2 THERAPEUTICS INC. [ TCRR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Chief People Officer
	3. Date of Earliest Transaction (Month/Day/Year) 12/01/2022
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction 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								9,693	D
Common Stock	12/01/2022		M		59,576(1)	A	(2)	69,269	D
Common Stock	12/02/2022		S(3)		2,273	D	$1.391	66,996	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. 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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	(2)	12/01/2022		M		50,889		(4)	(4)	Common Stock	50,889	$0.00	13,527	D
Restricted Stock Unit	(2)	12/01/2022		M		2,840		(5)	(5)	Common Stock	2,840	$0.00	1,050	D
Restricted Stock Unit	(2)	12/01/2022		M		5,847		(6)	(6)	Common Stock	5,847	$0.00	6,336	D

Explanation of Responses:

1. Represents the the aggregate number of common stock converted from restricted stock units granted to the reporting person on 11/17/2022 pursuant to the issuer's offer to exchange eligible options for new restricted stock units program.

2. Each restricted stock unit represents a right to receive one share of the issuer's common stock at the time of vesting for no consideration.

3. The sales reported represent the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and intended to qualify under Rule 10b5-1.

4. 79% of these restricted stock units vested on December 1, 2022 and the remaining 21% will vest on December 1, 2023.

5. 73% of these restricted stock units vested on December 1, 2022, 25% will vest on December 1, 2023 and the remaining 2% will vest on December 1, 2024.

6. 48% of these restricted stock units vested on December 1, 2022, 25% will vest on December 1, 2023, 25% will vest on December 1, 2024 and the remaining 2% will vest on December 1, 2025.

Remarks:

	Margaret Siegel as Attorney-In-Fact	12/05/2022
	** Signature of Reporting Person	Date
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).
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