| 08/28/2026 4:11 PM | Obsidian Therapeutics (2130606) Filer | Form S-1 Registration statement under Securities Act of 1933 | |
| 08/11/2026 3:03 PM | Deep Track Capital, LP (1856083) Filed by Obsidian Therapeutics (2130606) Subject | Form SCHEDULE 13G | |
| 08/10/2026 3:43 PM | Atlas Venture Fund X, L.P. (1628098) Filed by Obsidian Therapeutics (2130606) Subject | Form SCHEDULE 13G | |
| 08/10/2026 3:21 PM | Novo Holdings A/S (1388325) Filed by Obsidian Therapeutics (2130606) Subject | Form SCHEDULE 13G | |
| 08/05/2026 3:10 PM | Obsidian Therapeutics (2130606) Issuer ROSS ROBERT W. (1733077) Reporting | Form 4 Statement of changes in beneficial ownership of securities | |
| 08/05/2026 3:06 PM | Hagen Heidi (1585084) Reporting Obsidian Therapeutics (2130606) Issuer | Form 4 Statement of changes in beneficial ownership of securities | |
| 08/03/2026 5:39 PM | Feder Julie B (1710237) Reporting Obsidian Therapeutics (2130606) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 08/03/2026 5:41 PM | Fardis Maria (1559231) Reporting Obsidian Therapeutics (2130606) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 08/03/2026 5:42 PM | Barrett Peter (1291895) Reporting Obsidian Therapeutics (2130606) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 08/03/2026 5:29 PM | Obsidian Therapeutics (2130606) Issuer ROSS ROBERT W. (1733077) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 08/03/2026 5:32 PM | Hari Parameswaran (2145750) Reporting Obsidian Therapeutics (2130606) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 08/03/2026 5:34 PM | Norkunas Matthew (1816836) Reporting Obsidian Therapeutics (2130606) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 08/03/2026 5:35 PM | Jagasia Madan (2144943) Reporting Obsidian Therapeutics (2130606) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 08/03/2026 5:37 PM | Hagen Heidi (1585084) Reporting Obsidian Therapeutics (2130606) Issuer | Form 3 Initial statement of beneficial ownership of securities | |
| 08/03/2026 4:27 PM | Obsidian Therapeutics (2130606) Filer | Form S-8 Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans | |
| 08/03/2026 4:08 PM | Obsidian Therapeutics (2130606) Filer | Form 8-K Current report pursuant to Section 13 or 15(d) | |
| 08/03/2026 12:30 PM | Obsidian Therapeutics (2130606) Filer | Form CERT | |
| 08/03/2026 9:31 AM | Obsidian Therapeutics (2130606) Filer | Form 8-A12B/A | |
| 08/03/2026 7:58 AM | Obsidian Therapeutics (2130606) Filer | Form 8-A12B | |
| 07/05/2026 11:15 PM | Obsidian Therapeutics (2130606) Filer | Form EFFECT | |
| 07/02/2026 5:26 AM | Obsidian Therapeutics (2130606) Filer | Form S-4/A | |
| 06/30/2026 3:01 PM | Obsidian Therapeutics (2130606) Filer | Form S-4/A | |
| 06/24/2026 3:15 PM | Obsidian Therapeutics (2130606) Filer | Form S-4/A | |
| 04/22/2026 4:19 PM | Obsidian Therapeutics (2130606) Filer | Form S-4 Registration statement under Securities Act of 1933 | |