Obsidian Therapeutics, Inc. (OBX) Ownership
OBX ownership summary
as of October 18, 2026- Institutions
- 39.4% of shares outstanding
- Insiders
- 0.81% of shares outstanding
- Shares outstanding
- 61.8M
- Float
- 48.9M shares available to trade
- Short interest
- — 885K shares short
- Days to cover
- 1.33 short interest up 249.5% vs prior month
- Institutions 39.39%
- Insiders 0.81%
- Other investors 59.80%
OBX top mutual fund and ETF holders
10 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Schwab US Small-Cap ETF™ | 0.39% | 241K | $2.8M | +162 (+0.1%) | September 30, 2026 |
| 2 | T. Rowe Price Health Sciences | 0.30% | 186K | $2.2M | +186,074 (0.0%) | August 31, 2026 |
| 3 | iShares Core S&P Total US Stock Mkt ETF | 0.10% | 62K | $726,586 | +50 (+0.1%) | September 30, 2026 |
| 4 | Schwab US Broad Market ETF™ | 0.05% | 28K | $334,068 | — | September 30, 2026 |
| 5 | JHVIT Health Sciences I | 0.03% | 19K | $228,797 | +19,439 (0.0%) | August 31, 2026 |
| 6 | Fidelity Nasdaq Composite ETF | 0.03% | 16K | $193,875 | — | September 30, 2026 |
| 7 | EQ/T. Rowe Price Health Sciences IB | 0.02% | 14K | $160,166 | +13,608 (0.0%) | August 31, 2026 |
| 8 | T. Rowe Price Health Sciences Port | 0.02% | 11K | $133,837 | +11,371 (0.0%) | August 31, 2026 |
| 9 | Fidelity Nasdaq Composite Index | <0.01% | 1,553 | $18,279 | +1,553 (0.0%) | August 31, 2026 |
| 10 | T. Rowe Price Innovation Leaders ETF | <0.01% | 635 | $7,474 | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
Who owns OBX
Institutional investors own 39.4% of Obsidian Therapeutics's shares and insiders 0.81%.
Related: OBX analyst forecast, OBX key metrics. See the OBX stock overview for the latest quote and news.
OBX ownership FAQ
What percentage of Obsidian Therapeutics is owned by institutions?
Institutions hold 39.4% of Obsidian Therapeutics's shares outstanding; insiders hold 0.81%.
Which funds own Obsidian Therapeutics?
The largest fund holders of Obsidian Therapeutics are Schwab US Small-Cap ETF™ (0.39%), T. Rowe Price Health Sciences (0.30%), iShares Core S&P Total US Stock Mkt ETF (0.10%), Schwab US Broad Market ETF™ (0.05%), JHVIT Health Sciences I (0.03%).
How many shares of Obsidian Therapeutics are outstanding?
Obsidian Therapeutics has 61.8M shares outstanding, of which 48.9M are in the public float.