Odyssey Therapeutics, Inc. (ODTX) Ownership
ODTX ownership summary
as of October 18, 2026- Institutions
- 68.2% of shares outstanding
- Insiders
- 5.07% of shares outstanding
- Shares outstanding
- 48.1M
- Float
- 20.1M shares available to trade
- Short interest
- 7.37% 3.1M shares short
- Days to cover
- 8.12 short interest up 40.6% vs prior month
- Institutions 68.20%
- Insiders 5.07%
- Other investors 26.73%
ODTX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | FMR Inc | 10.78% | 5.2M | $88.9M | +5.2M (0.0%) | June 30, 2026 |
| 2 | SR ONE CAPITAL MANAGEMENT, LP | 7.90% | 3.8M | $65.2M | +3.8M (0.0%) | June 30, 2026 |
| 3 | TPG GP A, LLC | 7.68% | 3.7M | $63.4M | +3.7M (0.0%) | June 30, 2026 |
| 4 | Lightspeed Management Co LLC | 7.51% | 3.6M | $62.0M | +3.6M (0.0%) | June 30, 2026 |
| 5 | Orbimed Advisors LLC | 6.24% | 3.0M | $51.5M | +3.0M (0.0%) | June 30, 2026 |
| 6 | Sanofi | 4.14% | 2.0M | $34.2M | +2.0M (0.0%) | June 30, 2026 |
| 7 | Deerfield Management Co | 2.18% | 1.0M | $18.0M | +1.0M (0.0%) | June 30, 2026 |
| 8 | Sands Capital Ventures, LLC | 1.82% | 875K | $15.0M | +875,000 (0.0%) | June 30, 2026 |
| 9 | Hillhouse Capital Advisors, Ltd. | 1.73% | 832K | $14.3M | +831,656 (0.0%) | June 30, 2026 |
| 10 | General Catalyst Group Management, LLC | 1.69% | 810K | $13.9M | +810,272 (0.0%) | June 30, 2026 |
| 11 | Affinity Asset Advisors, LLC | 1.59% | 766K | $13.2M | +766,346 (0.0%) | June 30, 2026 |
| 12 | Adage Capital Partners Gp LLC | 1.51% | 725K | $12.4M | +725,000 (0.0%) | June 30, 2026 |
| 13 | Vanguard Capital Management, LLC | 1.50% | 720K | $12.4M | +720,440 (0.0%) | June 30, 2026 |
| 14 | Foresite Capital Management V, LLC | 1.48% | 713K | $12.2M | +713,105 (0.0%) | June 30, 2026 |
| 15 | Vivo Capital, LLC | 1.20% | 575K | $9.9M | +575,000 (0.0%) | June 30, 2026 |
| 16 | EcoR1 Capital, LLC | 1.16% | 556K | $9.5M | +555,555 (0.0%) | June 30, 2026 |
| 17 | Logos Global Management LP | 1.09% | 522K | $9.0M | +521,736 (0.0%) | June 30, 2026 |
| 18 | Marshall Wace Asset Management Ltd | 1.03% | 493K | $8.5M | +492,697 (0.0%) | June 30, 2026 |
| 19 | T. Rowe Price Associates, Inc. | 0.98% | 472K | $8.1M | +471,987 (0.0%) | June 30, 2026 |
| 20 | Catalio Capital Management, LP | 0.95% | 458K | $7.9M | +457,839 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 20 holders added 30.8M shares and 0 cut 0.
ODTX top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Growth Company Fund | 2.30% | 1.1M | $19.0M | +70,800 (+6.9%) | August 31, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 1.11% | 531K | $9.1M | — | August 31, 2026 |
| 3 | HBM Healthcare Investments AG Ord | 1.06% | 508K | $8.7M | +507,814 (0.0%) | June 30, 2026 |
| 4 | iShares Russell 2000 ETF | 0.88% | 425K | $7.3M | +16,700 (+4.1%) | September 30, 2026 |
| 5 | T. Rowe Price Health Sciences | 0.78% | 373K | $6.4M | — | August 31, 2026 |
| 6 | Fidelity Select Biotechnology | 0.71% | 341K | $5.8M | +1,200 (+0.4%) | August 31, 2026 |
| 7 | Fidelity Growth Company K6 | 0.64% | 309K | $5.3M | +20,200 (+7.0%) | August 31, 2026 |
| 8 | Fidelity Series Growth Company | 0.55% | 267K | $4.6M | +17,500 (+7.0%) | August 31, 2026 |
| 9 | Franklin Biotechnology Discv A(acc)USD | 0.36% | 175K | $3.0M | — | August 31, 2026 |
| 10 | Franklin Biotechnology Discovery A | 0.21% | 100K | $1.7M | — | August 31, 2026 |
| 11 | iShares Russell 2000 Growth ETF | 0.19% | 92K | $1.6M | −116 (−0.1%) | September 30, 2026 |
| 12 | Schwab US Small-Cap ETF™ | 0.17% | 83K | $1.4M | +54 (+0.1%) | September 30, 2026 |
| 13 | Fidelity Extended Market Index | 0.16% | 76K | $1.3M | −410 (−0.5%) | August 31, 2026 |
| 14 | iShares Russell 2000 Value ETF | 0.12% | 59K | $1.0M | +90 (+0.2%) | September 30, 2026 |
| 15 | iShares Micro-Cap ETF | 0.11% | 52K | $893,819 | −359 (−0.7%) | September 30, 2026 |
| 16 | Fidelity Nasdaq Composite Index | 0.10% | 49K | $842,051 | +20,975 (+74.7%) | August 31, 2026 |
| 17 | Fidelity Total Market Index | 0.07% | 33K | $567,760 | — | August 31, 2026 |
| 18 | TD Health Sciences - I | 0.07% | 31K | $536,494 | — | June 30, 2026 |
| 19 | abrdn Healthcare Investors | 0.06% | 28K | $475,729 | −30,043 (−52.0%) | August 31, 2026 |
| 20 | abrdn Healthcare Opportunities | 0.05% | 25K | $426,056 | −23,586 (−48.7%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
Who owns ODTX
Institutional investors own 68.2% of Odyssey Therapeutics's shares and insiders 5.07%. The largest holder is FMR Inc with 10.78% of the shares (5.2M), as of June 30, 2026. Among the top 20 institutions, 20 added shares and 0 reduced their stake in the latest filings. Short interest is 7.37% of the float, or 8.12 days of average trading volume.
Related: ODTX analyst forecast, ODTX key metrics. See the ODTX stock overview for the latest quote and news.
ODTX ownership FAQ
Who owns the most Odyssey Therapeutics stock?
The largest shareholders of Odyssey Therapeutics are FMR Inc (10.78%), SR ONE CAPITAL MANAGEMENT, LP (7.90%), TPG GP A, LLC (7.68%), Lightspeed Management Co LLC (7.51%), Orbimed Advisors LLC (6.24%).
What percentage of Odyssey Therapeutics is owned by institutions?
Institutions hold 68.2% of Odyssey Therapeutics's shares outstanding; insiders hold 5.07%.
Which funds own Odyssey Therapeutics?
The largest fund holders of Odyssey Therapeutics are Fidelity Growth Company Fund (2.30%), Vanguard MStar Total Stk Mkt Idx Invest (1.11%), HBM Healthcare Investments AG Ord (1.06%), iShares Russell 2000 ETF (0.88%), T. Rowe Price Health Sciences (0.78%).
What is Odyssey Therapeutics's short interest?
3.1M shares of Odyssey Therapeutics were sold short, 7.37% of the float; at the average daily volume it would take 8.12 days to cover.
How many shares of Odyssey Therapeutics are outstanding?
Odyssey Therapeutics has 48.1M shares outstanding, of which 20.1M are in the public float.