Tourmaline Bio, Inc.
TRMLDelisted Oct 28, 2025- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001827506
Tourmaline Bio, Inc. was delisted on Oct 28, 2025; its insiders filed their last Form 4 on Oct 28, 2025; 134 institutions reported holding it in 13F filings for Q3 2025, worth $1.03B in total; no superinvestor held it.
13F holders, Q4 2023
Institutional positions in Tourmaline Bio, Inc. as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 54
- +6 vs. Q3 2023
- Shares held
- 13.0M
- −14.4M (−52.5%) vs. Q3 2023
- Total value
- $338.2M
- +$261.1M (+339.0%) vs. Q3 2023
- New holders
- 21
- 8 more added
- Sold out
- 15
- 25 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TRML on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 134 | $1.03B |
| Q2 2025 | 109 | $384.8M |
| Q1 2025 | 107 | $364.3M |
| Q4 2024 | 101 | $463.6M |
| Q3 2024 | 92 | $540.7M |
| Q2 2024 | 84 | $272.0M |
| Q1 2024 | 96 | $469.9M |
| Q4 2023 | 54 | $338.2M |
| Q3 2023 | 49 | $77.1M |
| Q2 2023 | 58 | $79.7M |
| Q1 2023 | 54 | $50.6M |
| Q4 2022 | 54 | $27.4M |
| Q3 2022 | 56 | $72.1M |
| Q2 2022 | 59 | $130.4M |
| Q1 2022 | 51 | $286.9M |
| Q4 2021 | 51 | $456.7M |
| Q3 2021 | 48 | $349.4M |
| Q2 2021 | 50 | $379.4M |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2023
Shares, value and share of portfolio for each institution holding Tourmaline Bio, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Deep Track Capital, LP | 1,815,854 | $47.5M | 1.67% | +1,815,854 | New |
| Blue Owl Capital Holdings LP | 1,332,302 | $32.4M | 7.74% | +1,332,302 | New |
| TCG Crossover Management, LLC | 1,007,902 | $26.4M | 2.93% | +1,007,902 | New |
| QVT Financial LP | 948,367 | $24.8M | 1.50% | +359,053+60.9% | Added |
| Braidwell LP | 906,820 | $23.7M | 0.87% | +906,820 | New |
| Avoro Capital Advisors LLC | 868,407 | $22.7M | 0.31% | +368,407+73.7% | Added |
| Vanguard Group Inc | 763,752 | $20.0M | 0.00% | −336,874−30.6% | Reduced |
| Great Point Partners LLC | 672,885 | $17.6M | 3.00% | −327,115−32.7% | Reduced |
| Qiming U.S. Ventures Management, LLC | 641,691 | $16.8M | 15.38% | −2,290,915−78.1% | Reduced |
| Vivo Capital, LLC | 591,882 | $15.5M | 1.27% | +591,882 | New |
| Nantahala Capital Management, LLC | 410,907 | $10.8M | 1.08% | −2,542,222−86.1% | Reduced |
| RTW Investments, LP | 398,850 | $10.4M | 0.16% | +398,850 | New |
| Balyasny Asset Management LLC | 344,127 | $9.01M | 0.02% | −1,121,475−76.5% | Reduced |
| Velan Capital Investment Management LP | 319,080 | $8.35M | 5.92% | +319,080 | New |
| Logos Global Management LP | 284,372 | $7.44M | 0.83% | +284,372 | New |
| BlackRock Inc. | 272,376 | $7.13M | 0.00% | +145,545+114.8% | Added |
| BML Capital Management, LLC | 245,500 | $6.43M | 5.07% | −1,754,500−87.7% | Reduced |
| Acuta Capital Partners, LLC | 231,882 | $6.07M | 3.42% | +231,882 | New |
| Geode Capital Management, LLC | 116,029 | $3.04M | 0.00% | −89,785−43.6% | Reduced |
| FMR LLC | 105,889 | $2.77M | 0.00% | +100,287+1,790.2% | Added |
| Artal Group S.A. | 91,426 | $2.39M | 0.08% | −822,836−90.0% | Reduced |
| Affinity Asset Advisors, LLC | 68,081 | $1.78M | 0.36% | −331,919−83.0% | Reduced |
| Two Sigma Investments, LP | 56,363 | $1.48M | 0.00% | −189,667−77.1% | Reduced |
| HighTower Advisors, LLC | 53,418 | $1.40M | 0.00% | +53,418 | New |
| Marshall Wace, LLP | 44,996 | $1.18M | 0.00% | +44,996 | New |
| Citigroup Inc | 43,098 | $1.13M | 0.00% | +43,010+48,875.0% | Added |
| Laurion Capital Management LP | 35,792 | $937.0K | 0.03% | +35,792 | New |
| Two Sigma Advisers, LP | 35,119 | $919.4K | 0.00% | −191,508−84.5% | Reduced |
| Renaissance Technologies LLC | 33,976 | $889.0K | 0.00% | −162,489−82.7% | Reduced |
| Bridgeway Capital Management, LLC | 32,117 | $840.8K | 0.02% | −269,058−89.3% | Reduced |
| EAM Investors, LLC | 24,585 | $643.6K | 0.12% | +24,585 | New |
| Bank of America Corp | 24,011 | $628.6K | 0.00% | +13,440+127.1% | Added |
| Northern Trust Corp | 22,373 | $585.7K | 0.00% | −8,085−26.5% | Reduced |
| Dimensional Fund Advisors LP | 20,868 | $546.3K | 0.00% | −251,905−92.3% | Reduced |
| Qube Research & Technologies Ltd | 20,686 | $541.6K | 0.00% | +10,608+105.3% | Added |
| Millennium Management LLC | 20,386 | $533.7K | 0.00% | −137,259−87.1% | Reduced |
| Susquehanna International Group, LLP | 16,872 | $441.7K | 0.00% | −1,546−8.4% | Reduced |
| Cubist Systematic Strategies, LLC | 15,241 | $399.0K | 0.00% | +15,241 | New |
| Jump Financial, LLC | 14,500 | $379.6K | 0.01% | +14,500 | New |
| 683 Capital Management, LLC | 13,356 | $349.7K | 0.04% | +13,356 | New |
| American Century Companies Inc | 10,761 | $281.7K | 0.00% | +10,761 | New |
| ExodusPoint Capital Management, LP | 10,650 | $279.0K | 0.00% | +10,650 | New |
| Goldman Sachs Group Inc | 9,003 | $235.7K | 0.00% | +258+3.0% | Added |
| Morgan Stanley | 6,174 | $161.6K | 0.00% | −30,023−82.9% | Reduced |
| JPMorgan Chase & Co | 4,508 | $118.0K | 0.00% | −383,625−98.8% | Reduced |
| China Universal Asset Management Co., Ltd. | 2,357 | $61.7K | 0.01% | +2,357 | New |
| Point72 Middle East FZE | 1,040 | $27.2K | 0.00% | +1,040 | New |
| Barclays PLC | 704 | $18.4K | 0.00% | −16,992−96.0% | Reduced |
| Tower Research Capital LLC (TRC) | 594 | $15.6K | 0.00% | −368−38.3% | Reduced |
| Advisor Group Holdings, Inc. | 250 | $6.54K | 0.00% | +250 | New |
| Federated Hermes, Inc. | 144 | $3.77K | 0.00% | −2,206−93.9% | Reduced |
| Rhumbline Advisers | 116 | $3.04K | 0.00% | −1,048−90.0% | Reduced |
| Wells Fargo & Company | 83 | $2.17K | 0.00% | −56−40.3% | Reduced |
| Nisa Investment Advisors, LLC | 7 | $183 | 0.00% | −65−90.3% | Reduced |
| Blackstone Group Inc. | 0 | $0 | 0.00% | −8,089,315−100.0% | Sold out |
| Ra Capital Management, L.P. | 0 | $0 | 0.00% | −2,403,238−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −262,469−100.0% | Sold out |
| Acuitas Investments, LLC | 0 | $0 | 0.00% | −194,547−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −114,482−100.0% | Sold out |
| State Street Corp | 0 | $0 | 0.00% | −65,448−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | – | Sold out |
| Marquette Asset Management, LLC | 0 | $0 | 0.00% | −40,028−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −21,651−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −20,689−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −14,773−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −13,707−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −12,500−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −1,925−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −139−100.0% | Sold out |
| Freedom Wealth Alliance, LLC | – | – | – | – | Not filed |