X0306 4 2020-03-16 0 0001672619 IMARA Inc. IMRA 0001591318 Dalton Barbara 235 E 42ND ST NEW YORK NY 10017 1 0 1 0 Common Stock 2020-03-16 4 C 0 1245222 A 1245222 I By entities affiliated with Pfizer Inc. Common Stock 2020-03-16 4 P 0 312500 16.00 A 1557722 I By entities affiliated with Pfizer Inc. Series Seed Preferred Stock 2020-03-16 4 C 0 478749 0.00 D Common Stock 76003 0 I By entities affiliated with Pfizer Inc. Series A Preferred Stock 2020-03-16 4 C 0 5470492 0.00 D Common Stock 868467 0 I By entities affiliated with Pfizer Inc. Series B Preferred Stock 2020-03-16 4 C 0 1894444 0.00 D Common Stock 300752 0 I By entities affiliated with Pfizer Inc. Stock Option (right to buy) 16.00 2020-03-16 4 A 0 15457 0.00 A 2030-03-15 Common Stock 15457 15457 D On March 16, 2020, the Issuer's Series Seed Preferred Stock converted into Common Stock on a 6.299-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date. On March 16, 2020, the Issuer's Series A Preferred Stock converted into Common Stock on a 6.299-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date. On March 16, 2020, the Issuer's Series B Preferred Stock converted into Common Stock on a 6.299-for-1 basis upon the closing of the Issuer's initial public offering without payment of consideration. The Series B Preferred Stock was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The shares had no expiration date. The reporting person is Vice President of Venture Capital at Pfizer, Inc., an affiliate of 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 vests in three equal installments on March 16, 2021, 2022 and 2023. /s/ Michael P. Gray, Attorney-in-Fact 2020-03-16