X0407 4 2023-06-21 0 0001785530 Werewolf Therapeutics, Inc. HOWL 0001134657 EVNIN LUKE C/O MPM CAPITAL 450 KENDALL STREET CAMBRIDGE MA 02142 1 0 0 0 0 Stock Option (right to buy) 2.81 2023-06-21 4 A 0 13200 0.00 A 2033-06-20 Common Stock 13200 13200 D The option was granted on June 21, 2023. The shares underlying the option vest in full on the earlier of the first anniversary of the grant date and the next annual meeting of stockholders following the grant date, subject to the reporting person's continued service as a director. /s/ Jonathan Owen, Attorney-in-fact 2023-06-23