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 |
|---|---|---|---|---|---|
| Nisa Investment Advisors, LLC | 7 | $183 | 0.00% | −65−90.3% | Reduced |
| Wells Fargo & Company | 83 | $2.17K | 0.00% | −56−40.3% | Reduced |
| Rhumbline Advisers | 116 | $3.04K | 0.00% | −1,048−90.0% | Reduced |
| Federated Hermes, Inc. | 144 | $3.77K | 0.00% | −2,206−93.9% | Reduced |
| Advisor Group Holdings, Inc. | 250 | $6.54K | 0.00% | +250 | New |
| Tower Research Capital LLC (TRC) | 594 | $15.6K | 0.00% | −368−38.3% | Reduced |
| Barclays PLC | 704 | $18.4K | 0.00% | −16,992−96.0% | Reduced |
| Point72 Middle East FZE | 1,040 | $27.2K | 0.00% | +1,040 | New |
| China Universal Asset Management Co., Ltd. | 2,357 | $61.7K | 0.01% | +2,357 | New |
| JPMorgan Chase & Co | 4,508 | $118.0K | 0.00% | −383,625−98.8% | Reduced |
| Morgan Stanley | 6,174 | $161.6K | 0.00% | −30,023−82.9% | Reduced |
| Goldman Sachs Group Inc | 9,003 | $235.7K | 0.00% | +258+3.0% | Added |
| ExodusPoint Capital Management, LP | 10,650 | $279.0K | 0.00% | +10,650 | New |
| American Century Companies Inc | 10,761 | $281.7K | 0.00% | +10,761 | New |
| 683 Capital Management, LLC | 13,356 | $349.7K | 0.04% | +13,356 | New |
| Jump Financial, LLC | 14,500 | $379.6K | 0.01% | +14,500 | New |
| Cubist Systematic Strategies, LLC | 15,241 | $399.0K | 0.00% | +15,241 | New |
| Susquehanna International Group, LLP | 16,872 | $441.7K | 0.00% | −1,546−8.4% | Reduced |
| Millennium Management LLC | 20,386 | $533.7K | 0.00% | −137,259−87.1% | Reduced |
| Qube Research & Technologies Ltd | 20,686 | $541.6K | 0.00% | +10,608+105.3% | Added |
| Dimensional Fund Advisors LP | 20,868 | $546.3K | 0.00% | −251,905−92.3% | Reduced |
| Northern Trust Corp | 22,373 | $585.7K | 0.00% | −8,085−26.5% | Reduced |
| Bank of America Corp | 24,011 | $628.6K | 0.00% | +13,440+127.1% | Added |
| EAM Investors, LLC | 24,585 | $643.6K | 0.12% | +24,585 | New |
| Bridgeway Capital Management, LLC | 32,117 | $840.8K | 0.02% | −269,058−89.3% | Reduced |
| Renaissance Technologies LLC | 33,976 | $889.0K | 0.00% | −162,489−82.7% | Reduced |
| Two Sigma Advisers, LP | 35,119 | $919.4K | 0.00% | −191,508−84.5% | Reduced |
| Laurion Capital Management LP | 35,792 | $937.0K | 0.03% | +35,792 | New |
| Citigroup Inc | 43,098 | $1.13M | 0.00% | +43,010+48,875.0% | Added |
| Marshall Wace, LLP | 44,996 | $1.18M | 0.00% | +44,996 | New |
| HighTower Advisors, LLC | 53,418 | $1.40M | 0.00% | +53,418 | New |
| Two Sigma Investments, LP | 56,363 | $1.48M | 0.00% | −189,667−77.1% | Reduced |
| Affinity Asset Advisors, LLC | 68,081 | $1.78M | 0.36% | −331,919−83.0% | Reduced |
| Artal Group S.A. | 91,426 | $2.39M | 0.08% | −822,836−90.0% | Reduced |
| FMR LLC | 105,889 | $2.77M | 0.00% | +100,287+1,790.2% | Added |
| Geode Capital Management, LLC | 116,029 | $3.04M | 0.00% | −89,785−43.6% | Reduced |
| Acuta Capital Partners, LLC | 231,882 | $6.07M | 3.42% | +231,882 | New |
| BML Capital Management, LLC | 245,500 | $6.43M | 5.07% | −1,754,500−87.7% | Reduced |
| BlackRock Inc. | 272,376 | $7.13M | 0.00% | +145,545+114.8% | Added |
| Logos Global Management LP | 284,372 | $7.44M | 0.83% | +284,372 | New |
| Velan Capital Investment Management LP | 319,080 | $8.35M | 5.92% | +319,080 | New |
| Balyasny Asset Management LLC | 344,127 | $9.01M | 0.02% | −1,121,475−76.5% | Reduced |
| RTW Investments, LP | 398,850 | $10.4M | 0.16% | +398,850 | New |
| Nantahala Capital Management, LLC | 410,907 | $10.8M | 1.08% | −2,542,222−86.1% | Reduced |
| Vivo Capital, LLC | 591,882 | $15.5M | 1.27% | +591,882 | New |
| Qiming U.S. Ventures Management, LLC | 641,691 | $16.8M | 15.38% | −2,290,915−78.1% | Reduced |
| Great Point Partners LLC | 672,885 | $17.6M | 3.00% | −327,115−32.7% | Reduced |
| Vanguard Group Inc | 763,752 | $20.0M | 0.00% | −336,874−30.6% | Reduced |
| Avoro Capital Advisors LLC | 868,407 | $22.7M | 0.31% | +368,407+73.7% | Added |
| Braidwell LP | 906,820 | $23.7M | 0.87% | +906,820 | New |
| QVT Financial LP | 948,367 | $24.8M | 1.50% | +359,053+60.9% | Added |
| TCG Crossover Management, LLC | 1,007,902 | $26.4M | 2.93% | +1,007,902 | New |
| Blue Owl Capital Holdings LP | 1,332,302 | $32.4M | 7.74% | +1,332,302 | New |
| Deep Track Capital, LP | 1,815,854 | $47.5M | 1.67% | +1,815,854 | New |
| 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 |