144 0001742084 XXXXXXXX LIVE 0001650664 EDITAS MEDICINE, INC. 001-37687 c/o Editas Medicine, Inc. 11 Hurley St. Cambridge MA 02141 617-401-9000 Gilmore Neil O'Neill Officer Director Common Stock E*Trade Financial Corporation

3 Edison Drive Alphareta GA 30005

8500 78030 68995606 06/05/2023 NASDAQ Common Stock 06/02/2023 Restricted Stock Unit Vesting Issuer N 21664 06/02/2023 Equity Compensation Y 06/02/2023 04/13/2022 /s/ Gilmore O'Neill