Pfizer (PFE)

=== SEC Form 3 — Statement of Changes in Beneficial Ownership === Document Type: 3 Period of Report: 2026-08-17 --- Issuer --- Name: PFIZER INC (PFE) CIK: 0000078003 --- Reporting Owner --- Name: Guegan Cecile CIK: 0002151218 Role: Officer (Executive Vice President) --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) [Holding #2] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F1] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the fifth anniversary of the date of grant. [F1] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the fifth anniversary of the date of grant. [Holding #3] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F1] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the fifth anniversary of the date of grant. [F1] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the fifth anniversary of the date of grant. [Holding #4] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F1] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the fifth anniversary of the date of grant. [F1] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the fifth anniversary of the date of grant. [Holding #5] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [Holding #6] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [Holding #7] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [Holding #8] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [Holding #9] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [Holding #10] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [Holding #11] Security: Stock Appreciation Rights Ownership: D (Direct) Footnotes: [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. [F2] The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. --- Footnotes (Complete Index) --- F1: The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the fifth anniversary of the date of grant. F2: The stock appreciation rights, which are subject to certain vesting requirements, will be settled in shares of Pfizer common stock on the seventh anniversary of the date of grant. --- Signature --- /s/ /s/ Shanice A. Reid, by power of atty, for Cecile Guegan (2026-08-27)