X0609 4 2026-03-31 0000078003 PFIZER INC PFE 0001595703 BOURLA ALBERT false 66 HUDSON BOULEVARD EAST ATTN: CORPORATE SECRETARY NEW YORK NY 10001-2192 1 1 Chairman & CEO 0 Phantom Stock Units SSP 2026-03-31 4 A 0 21.0000 28.0800 A Common Stock 21.0000 759049.0000 D Each unit represents one phantom share of common stock. These units, which were acquired pursuant to the Pfizer Inc. Nonfunded Deferred Compensation and Supplemental Savings Plan, are settled in cash following the reporting person's separation from service and may be transferred by the reporting person into an alternative investment account at any time. /s/ Shanice A. Reid, by power of atty., for Albert Bourla 2026-04-01