Obsidian Therapeutics, Inc. Common Stock (OBX) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for OBX. 13F holdings as of 2026-09-30.
In 13F filings for the quarter ended September 30, 2026, 11 institutions reported holding OBX, with 6.9 million shares worth $94.1 million in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| Atlas Venture Life Science Advisors | 4,503,149 | $62M | NEW |
| Alphabet | 1,224,869 | $17M | NEW |
| Geode Capital Management | 483,438 | $7M | NEW |
| Revelation Capital Management | 428,346 | $6M | NEW |
| UBS Group | 199,207 | $3M | NEW |
Full institutional holdings, insider history, and congressional trades for Obsidian Therapeutics, Inc. Common Stock on SentiSense.