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