X0609 4 2026-03-27 0000078003 PFIZER INC PFE 0001633137 Echevarria Joseph false 66 HUDSON BOULEVARD EAST ATTN: CORPORATE SECRETARY NEW YORK NY 10001-2192 1 0 Phantom Stock Units 2026-03-27 4 A 0 1710.4290 27.0400 A Common Stock 1710.4290 153398.1450 D Each unit represents one phantom share of common stock. These units represent deferred director's compensation (including dividend equivalents thereon) that are settled in cash or common stock at the director's election following the reporting person's retirement from the Board of Directors. /s/ Shanice A. Reid, by power of atty., for Joseph J. Echevarria 2026-03-30