X0306 4 2021-05-14 0001113148 INFINITY PHARMACEUTICALS, INC. INFI 0001192613 SELBY NORMAN C C/O INFINITY PHARMACEUTICALS, INC. 1100 MASSACHUSETTS AVENUE, FLOOR 4 CAMBRIDGE MA 02138 true Common Stock 2021-05-14 4 M 0 5000 0.92 A 15000 D Stock Option (right to buy) 0.92 2021-05-14 4 M 0 5000 0 D 2030-06-17 Common Stock 5000 35000 D On June 17, 2020, the Reporting Person was granted 40,000 stock options, 30,000 of which were eligible to vest as long as the holder continued to serve as a director of the issuer and 10,000 of which were eligible to vest as long as the holder continued to serve as Lead Independent Director of the issuer's Board of Directors. The stock options vested over a period of one year in equal quarterly installments beginning at the end of the first calendar quarter after the date of grant. All 40,000 stock options are currently exercisable. /s/ Norman Selby 2021-05-18