X0708 D/A LIVE 0001932386 SightStream Biotherapeutics, Inc. 266 MAIN ST., BLDG 2, STE 11 MEDFIELD MA MASSACHUSETTS 02052 617-388-2635 DELAWARE Kera Therapeutics, Inc. Corporation true 2020 Jason Werner 266 Main St., BLDG 2, STE 11 Medfield MA MASSACHUSETTS 02052 Executive Officer Director Reza Dana 266 Main St., BLDG 2, STE 11 Medfield MA MASSACHUSETTS 02052 Director Jiagang Zhao 266 Main St., BLDG 2, STE 11 Medfield MA MASSACHUSETTS 02052 Director David Neafus 266 Main St., BLDG 2, STE 11 Medfield MA MASSACHUSETTS 02052 Executive Officer Biotechnology Decline to Disclose 06b true 0001932386-23-000001 2022-05-25 true true true Simple Agreement for Future Equity true 0 3500000 3065000 435000 false 21 0 0 300000 true false SightStream Biotherapeutics, Inc. /s/ Jason Werner Jason Werner President 2023-06-12