X0306 4 2018-05-01 0000078003 PFIZER INC PFE 0001372915 READ IAN C PFIZER INC.-CORP. SECRETARY 235 EAST 42ND ST. NEW YORK NY 10017 1 1 Chairman & CEO Common Stock 2018-05-01 4 S 0 1500.0000 36.0500 D 1275515.0000 D Common Stock 2018-05-01 4 S 0 3700.0000 36.0300 D 1271815.0000 D Common Stock 2018-05-01 4 S 0 4141.0000 36.0400 D 1267674.0000 D Common Stock 2018-05-01 4 S 0 14600.0000 36.0200 D 1253074.0000 D Common Stock 2018-05-01 4 S 0 20543.0000 36.0100 D 1232531.0000 D Common Stock 2018-05-01 4 S 0 87828.0000 36.0000 D 1144703.0000 D Common Stock 11074.0000 I By Rule 16b-3 Plan This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 2, 2018. Susan E. Grant, by power of atty., for Ian C. Read 2018-05-03