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, Q1 2024
Institutional positions in Tourmaline Bio, Inc. as of Mar 31, 2024. 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
- 96
- +42 vs. Q4 2023
- Shares held
- 20.6M
- +7.55M (+58.0%) vs. Q4 2023
- Total value
- $469.9M
- +$131.7M (+38.9%) vs. Q4 2023
- New holders
- 50
- 27 more added
- Sold out
- 8
- 11 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Tourmaline Bio, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Avoro Capital Advisors LLC | 2,222,222 | $50.9M | 0.59% | +1,353,815+155.9% | Added |
| Deep Track Capital, LP | 1,595,400 | $36.5M | 1.05% | −220,454−12.1% | Reduced |
| TCG Crossover Management, LLC | 1,477,593 | $33.8M | 2.68% | +469,691+46.6% | Added |
| Blue Owl Capital Holdings LP | 1,447,401 | $32.0M | 6.39% | +115,099+8.6% | Added |
| Cormorant Asset Management, LP | 1,250,000 | $28.6M | 1.26% | +1,250,000 | New |
| Jennison Associates LLC | 1,115,251 | $25.5M | 0.02% | +1,115,251 | New |
| QVT Financial LP | 948,366 | $22.0M | 2.05% | −10.0% | Reduced |
| Vanguard Group Inc | 914,519 | $20.9M | 0.00% | +150,767+19.7% | Added |
| Braidwell LP | 906,820 | $20.8M | 0.67% | 00.0% | Unchanged |
| Qiming U.S. Ventures Management, LLC | 741,691 | $17.0M | 18.94% | +100,000+15.6% | Added |
| RTW Investments, LP | 741,656 | $17.0M | 0.25% | +342,806+85.9% | Added |
| Nantahala Capital Management, LLC | 700,907 | $16.1M | 1.57% | +290,000+70.6% | Added |
| Vivo Capital, LLC | 591,882 | $13.6M | 1.07% | 00.0% | Unchanged |
| BlackRock Inc. | 495,375 | $11.3M | 0.00% | +222,999+81.9% | Added |
| Darwin Global Management, Ltd. | 465,000 | $10.6M | 1.42% | +465,000 | New |
| Eventide Asset Management, LLC | 320,916 | $7.35M | 0.12% | +320,916 | New |
| Velan Capital Investment Management LP | 319,080 | $7.31M | 3.95% | 00.0% | Unchanged |
| Artal Group S.A. | 314,496 | $7.20M | 0.19% | +223,070+244.0% | Added |
| StemPoint Capital LP | 274,219 | $6.28M | 1.68% | +274,219 | New |
| Acuta Capital Partners, LLC | 261,108 | $5.98M | 3.88% | +29,226+12.6% | Added |
| FMR LLC | 239,025 | $5.47M | 0.00% | +133,136+125.7% | Added |
| Goldman Sachs Group Inc | 197,919 | $4.53M | 0.00% | +188,916+2,098.4% | Added |
| Schonfeld Strategic Advisors LLC | 181,960 | $4.17M | 0.03% | +181,960 | New |
| Geode Capital Management, LLC | 173,877 | $3.98M | 0.00% | +57,848+49.9% | Added |
| Woodline Partners LP | 157,359 | $3.60M | 0.03% | +157,359 | New |
| Citadel Advisors LLC | 154,860 | $3.55M | 0.00% | +154,860 | New |
| Marshall Wace, LLP | 139,418 | $3.19M | 0.01% | +94,422+209.8% | Added |
| Millennium Management LLC | 137,587 | $3.15M | 0.00% | +117,201+574.9% | Added |
| Invesco Ltd. | 126,904 | $2.91M | 0.00% | +126,904 | New |
| Suvretta Capital Management, LLC | 125,000 | $2.86M | 0.12% | +125,000 | New |
| Ikarian Capital, LLC | 108,483 | $2.48M | 0.68% | +108,483 | New |
| Logos Global Management LP | 99,208 | $2.27M | 0.24% | −185,164−65.1% | Reduced |
| Susquehanna International Group, LLP | 89,885 | $2.06M | 0.00% | +73,013+432.7% | Added |
| Qube Research & Technologies Ltd | 87,615 | $2.01M | 0.00% | +66,929+323.5% | Added |
| Alyeska Investment Group, L.P. | 75,000 | $1.72M | 0.01% | +75,000 | New |
| Prudential Financial Inc | 71,000 | $1.63M | 0.00% | +71,000 | New |
| Superstring Capital Management LP | 69,972 | $1.60M | 1.06% | +69,972 | New |
| Altium Capital Management LP | 65,442 | $1.50M | 0.67% | +65,442 | New |
| HRT Financial LP | 61,307 | $1.40M | 0.01% | +61,307 | New |
| AlphaCentric Advisors LLC | 61,100 | $1.40M | 0.84% | +61,100 | New |
| Hudson Bay Capital Management LP | 54,165 | $1.24M | 0.01% | +54,165 | New |
| HighTower Advisors, LLC | 53,418 | $1.22M | 0.00% | 00.0% | Unchanged |
| HighVista Strategies LLC | 53,052 | $1.21M | 0.43% | +53,052 | New |
| Affinity Asset Advisors, LLC | 50,000 | $1.15M | 0.19% | −18,081−26.6% | Reduced |
| Altitude Crest Partners Inc. | 47,400 | $1.09M | 0.46% | +47,400 | New |
| Man Group plc | 43,791 | $1.00M | 0.00% | +43,791 | New |
| Jane Street Group, LLC | 40,118 | $918.7K | 0.00% | +40,118 | New |
| Caption Management, LLC | 40,000 | $916.0K | 0.10% | +40,000 | New |
| Allianz Asset Management GmbH | 39,500 | $904.5K | 0.00% | +39,500 | New |
| Northern Trust Corp | 36,102 | $826.7K | 0.00% | +13,729+61.4% | Added |
| Laurion Capital Management LP | 35,792 | $819.6K | 0.02% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 35,126 | $804.0K | 0.00% | +1,150+3.4% | Added |
| State Street Corp | 33,743 | $772.7K | 0.00% | +33,743 | New |
| Swiss National Bank | 32,000 | $732.8K | 0.00% | +32,000 | New |
| Boothbay Fund Management, LLC | 31,633 | $724.4K | 0.02% | +31,633 | New |
| Squarepoint Ops LLC | 27,033 | $619.1K | 0.00% | +27,033 | New |
| Wellington Management Group LLP | 24,945 | $571.2K | 0.00% | +24,945 | New |
| Two Sigma Investments, LP | 24,547 | $562.1K | 0.00% | −31,816−56.4% | Reduced |
| Two Seas Capital LP | 21,891 | $501.3K | 0.10% | +21,891 | New |
| Nan Fung Group Holdings Ltd | 20,987 | $480.6K | 0.45% | +20,987 | New |
| Two Sigma Advisers, LP | 20,119 | $460.7K | 0.00% | −15,000−42.7% | Reduced |
| Balyasny Asset Management LLC | 20,100 | $460.3K | 0.00% | −324,027−94.2% | Reduced |
| Credit Suisse AG | 18,715 | $428.6K | 0.00% | +18,715 | New |
| Algert Global LLC | 17,901 | $409.9K | 0.02% | +17,901 | New |
| Bridgeway Capital Management, LLC | 17,267 | $395.4K | 0.01% | −14,850−46.2% | Reduced |
| Morgan Stanley | 16,319 | $373.7K | 0.00% | +10,145+164.3% | Added |
| Legal & General Group Plc | 15,013 | $343.8K | 0.00% | +15,013 | New |
| American Century Companies Inc | 14,695 | $336.5K | 0.00% | +3,934+36.6% | Added |
| California State Teachers Retirement System | 14,578 | $333.8K | 0.00% | +14,578 | New |
| Tudor Investment Corp Et Al | 13,312 | $304.8K | 0.00% | +13,312 | New |
| Marathon Trading Investment Management LLC | 13,100 | $300.0K | 0.12% | +13,100 | New |
| Dimensional Fund Advisors LP | 13,050 | $298.8K | 0.00% | −7,818−37.5% | Reduced |
| State of Wisconsin Investment Board | 11,983 | $274.4K | 0.00% | +11,983 | New |
| Janus Henderson Group PLC | 11,593 | $265.8K | 0.00% | +11,593 | New |
| ADAR1 Capital Management, LLC | 11,560 | $264.7K | 0.07% | +11,560 | New |
| UBS Asset Management Americas Inc | 8,900 | $203.8K | 0.00% | +8,900 | New |
| Citigroup Inc | 8,807 | $201.7K | 0.00% | −34,291−79.6% | Reduced |
| Bank of America Corp | 7,835 | $179.4K | 0.00% | −16,176−67.4% | Reduced |
| JPMorgan Chase & Co | 6,130 | $140.4K | 0.00% | +1,622+36.0% | Added |
| Denali Advisors LLC | 5,600 | $128.2K | 0.04% | +5,600 | New |
| China Universal Asset Management Co., Ltd. | 4,939 | $113.1K | 0.01% | +2,582+109.5% | Added |
| Barclays PLC | 3,242 | $74.2K | 0.00% | +2,538+360.5% | Added |
| UBS Group AG | 2,821 | $64.6K | 0.00% | +2,821 | New |
| Simplex Trading, LLC | 2,018 | $46.0K | 0.00% | +2,018 | New |
| Quest Partners LLC | 1,633 | $37.4K | 0.01% | +1,633 | New |
| Tower Research Capital LLC (TRC) | 1,408 | $32.2K | 0.00% | +814+137.0% | Added |
| BNP Paribas Arbitrage, SA | 1,346 | $30.8K | 0.00% | +1,346 | New |
| Quarry LP | 1,000 | $22.9K | 0.01% | +1,000 | New |
| Federated Hermes, Inc. | 357 | $8.18K | 0.00% | +213+147.9% | Added |
| Advisor Group Holdings, Inc. | 250 | $5.72K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 126 | $2.88K | 0.00% | +43+51.8% | Added |
| Rhumbline Advisers | 116 | $2.66K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 95 | $2.00K | 0.00% | +95 | New |
| GAMMA Investing LLC | 11 | $252 | 0.00% | +11 | New |
| Nisa Investment Advisors, LLC | 7 | $160 | 0.00% | 00.0% | Unchanged |
| Macquarie Group Ltd | 1,522 | $35 | 0.00% | +1,522 | New |
| Great Point Partners LLC | 0 | $0 | 0.00% | −672,885−100.0% | Sold out |
| BML Capital Management, LLC | 0 | $0 | 0.00% | −245,500−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −24,585−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −15,241−100.0% | Sold out |