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

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Bergstrom Donald A
  2. Issuer Name and Ticker or Trading Symbol
Fusion Pharmaceuticals Inc. [FUSN] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O FUSION PHARMACEUTICALS INC., TWO INTERNATIONAL PLACE, SUITE 2310		 3. Date of Earliest Transaction (Month/Day/Year)
06/04/2024
(Street)

BOSTON, MA 02110		 4. If Amendment, Date 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
(City)
(State)
(Zip)
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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities
(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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) (1) $ 10.59 06/04/2024   D     34,000   (2)   (2) Common Stock 34,000 (2) 0 D  
Stock Option (Right to Buy) $ 8.15 06/04/2024   D     17,000   (2)   (2) Common Stock 17,000 (2) 0 D  
Stock Option (Right to Buy) $ 3.6 06/04/2024   D     17,000   (2)   (2) Common Stock 17,000 (2) 0 D  
Stock Option (Right to Buy) $ 4.64 06/04/2024   D     17,000   (2)   (2) Common Stock 17,000 (2) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Bergstrom Donald A
C/O FUSION PHARMACEUTICALS INC.
TWO INTERNATIONAL PLACE, SUITE 2310
BOSTON, MA 02110		   X      

Signatures

 /s/ Maria Stahl as Attorney-in-Fact for Donald Bergstrom   06/04/2024
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Pursuant to the Arrangement Agreement, dated as of March 18, 2024 (the "Arrangement Agreement"), by and among the Issuer, AstraZeneca AB, a public company with limited liability (Aktiebolag) incorporated under the laws of Sweden ("Parent") and 15863210 Canada Inc., a corporation formed under the Canada Business Corporations Act ("Purchaser"), Purchaser acquired all of the issued and outstanding common shares of the Issuer (collectively, the "Shares") effective as of 12:01 a.m. Toronto time on June 4, 2024 (the "Effective Time"). Following the Effective Time, each Share outstanding immediately prior to the Effective Time was assigned and transferred by the holder thereof to Purchaser in exchange for (i) US$21.00 in cash (the "Cash Consideration") plus (ii) one contingent value right (each, a "CVR") representing the contingent right to receive a cash payment equal to US$3.00, in each case subject to applicable tax withholdings and other source deductions.
(2) Pursuant to the terms of the Arrangement Agreement, immediately following the Effective Time, each option to purchase Shares granted (each, an "Option") with an exercise price that is less than the Cash Consideration and outstanding immediately prior to the Effective Time, whether vested or unvested, was assigned, transferred and surrendered by the holder thereof to the Issuer and thereafter cancelled in consideration for (A) a cash payment by or on behalf of the Issuer equal to the number of Shares into which such Option is then exercisable multiplied by the amount, if any, by which the Cash Consideration exceeds the exercise price per Share of such Option and (B) one CVR with respect to each Share into which such Option is then exercisable, in each case subject to applicable tax withholdings and other source deductions.

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