X0306 4 2021-06-29 0 0001672619 IMARA Inc. IMRA 0001591318 Dalton Barbara C/O IMARA INC. 116 HUNTINGTON AVE, SIXTH FLOOR BOSTON MA 02116 1 0 0 0 Common Stock 1557722 I By entities affiliated with Pfizer Inc. Stock Option (right to buy) 8.12 2021-06-29 4 A 0 7728 0.00 A 2031-06-28 Common Stock 7728 7728 D The reporting person is Managing General Partner, Pfizer Ventures (US) LLC. The reporting person disclaims beneficial ownership of the shares owned by the entities affiliated with Pfizer Ventures (US) LLC except to the extent of her pecuniary interest therein. The option will vest on the first anniversary of the date of grant or, if earlier, the date of Imara's next annual meeting of stockholders following the date of grant. /s/ Michael P. Gray, Attorney-in-Fact 2021-06-30