| (1) | Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the “Securities Act”), this Registration Statement shall also cover shares of common stock, par value $0.05 per share (the “Common Stock”), of Pfizer Inc. (the “Registrant”) that may become issuable under the Pfizer Inc. 2019 Stock Plan, as amended April 2026 by reason of certain corporate transactions or events, including any stock dividend, stock split, recapitalization or any other similar transaction effected without the receipt of consideration which results in an increase in the number of the Registrant’s outstanding shares of Common Stock. |