SEC FORM 4

SEC FORM 4 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

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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^*

Petrova Penka

(Last)

(First)

(Middle)

C/O TRILLIUM THERAPEUTICS INC.

2488 DUNWIN DRIVE

(Street)

MISSISSAUGA

L5L 1J9

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Trillium Therapeutics Inc. [ TRIL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Chief Development Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/17/2021

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)	$15.27⁽¹⁾	11/17/2021		D			38,808	⁽⁵⁾	11/19/2025	Common Shares	38,808	$0	0	D
Stock Option (Right to Buy)	$9.65⁽²⁾	11/17/2021		D			4,574	⁽⁵⁾	11/09/2027	Common Shares	4,574	$0	0	D
Stock Option (Right to Buy)	$3.34⁽³⁾	11/17/2021		D			49,480	⁽⁵⁾	11/08/2028	Common Shares	49,480	$0	0	D
Stock Option (Right to Buy)	$0.3⁽⁴⁾	11/17/2021		D			83,960	⁽⁵⁾	11/07/2029	Common Shares	83,960	$0	0	D
Stock Option (Right to Buy)	$12.03	11/17/2021		D			140,000	⁽⁵⁾	12/23/2030	Common Shares	140,000	$0	0	D

Explanation of Responses:

1. The exercise price of these options is $19.333 CAD and has been translated to USD in the table above at an exchange rate of $1.00 CAD to $0.79 USD.

2. The exercise price of these options is $12.22 CAD and has been translated to USD in the table above at an exchange rate of $1.00 CAD to $0.79 USD.

3. The exercise price of these options is $4.23 CAD and has been translated to USD in the table above at an exchange rate of $1.00 CAD to $0.79 USD.

4. The exercise price of these options is $0.38 CAD and has been translated to USD in the table above at an exchange rate of $1.00 CAD to $0.79 USD.

5. On November 17, 2021 (the "Closing Date"), PF Argentum Acquisition ULC, an indirect wholly owned subsidiary of Pfizer, Inc. (the "Purchaser") acquired all of the outstanding common shares of Trillium Therapeutics Inc. (the "Issuer") under a plan of arrangement pursuant to the Canada Business Corporations Act (British Columbia) (the "Plan of Arrangement"), whereby Issuer became a wholly owned subsidiary of the Purchaser. At the Effective Time (the "Effective Time") of the Plan of Arrangement, all common shares and equity awards of the Issuer that were issued and outstanding immediately prior to the Effective Time were converted into the right to receive $18.50 per share in cash.

	/s/ James Parsons, Attorney-in-Fact	11/19/2021
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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