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 *
SUSMAN SALLY
  2. Issuer Name and Ticker or Trading Symbol
PFIZER INC [PFE] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President
(Last)
(First)
(Middle)
66 HUDSON BOULEVARD EAST, ATTN: CORPORATE SECRETARY		 3. Date of Earliest Transaction (Month/Day/Year)
09/12/2024
(Street)

NEW YORK, NY 10001-2192		 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 Appreciation Rights $ 42.3 09/12/2024   D     43,624 (1) 02/23/2028 02/23/2028 Common Stock 43,624 $ 0 0 D  
Stock Appreciation Rights $ 42.3 09/12/2024   A   43,624 (1)   02/23/2030 02/23/2030(2) Common Stock 43,624 $ 0 43,624 D  
Stock Appreciation Rights $ 45.96 09/12/2024   D     40,151 (1) 02/24/2027 02/24/2027 Common Stock 40,151 $ 0 0 D  
Stock Appreciation Rights $ 45.96 09/12/2024   A   40,151 (1)   02/24/2029 02/24/2029(2) Common Stock 40,151 $ 0 40,151 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SUSMAN SALLY
66 HUDSON BOULEVARD EAST
ATTN: CORPORATE SECRETARY
NEW YORK, NY 10001-2192		       Executive Vice President  

Signatures

 Susan E. Grant, by power of atty., for Sally Susman   09/16/2024
**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) Represents the number of shares of issuer common stock underlying stock appreciation rights ("total shareholder return units" or "TSRUs") eligible for modification ("Eligible TSRUs") pursuant to the issuer's one-time offer to modify Eligible TSRUs (the "Modification Offer") described in the Tender Offer Statement on Schedule TO filed by the issuer with the Securities and Exchange Commission on August 12, 2024 (as amended, the "Schedule TO") that the reporting person elected to modify. The Modification Offer provided eligible participants the opportunity to elect to modify certain outstanding TSRUs to extend the dates upon which the awards vest and settle by two years (the "Modified TSRUs"). The grant price and number of shares underlying the Modified TSRUs remain unchanged.
(2) Reflects a modification to the settlement date of the Modified TSRUs pursuant to the Modification Offer. The grant price and number of shares underlying the Modified TSRUs remain unchanged.

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