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 2025
Institutional positions in Tourmaline Bio, Inc. as of Mar 31, 2025. 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
- 107
- +7 vs. Q4 2024
- Shares held
- 23.9M
- +1.16M (+5.1%) vs. Q4 2024
- Total value
- $364.3M
- −$97.8M (−21.2%) vs. Q4 2024
- New holders
- 19
- 34 more added
- Sold out
- 12
- 31 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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 2025
Shares, value and share of portfolio for each institution holding Tourmaline Bio, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 2,538,925 | $38.6M | 0.64% | 00.0% | Unchanged |
| Avoro Capital Advisors LLC | 2,425,000 | $36.9M | 0.58% | +202,778+9.1% | Added |
| BlackRock, Inc. | 1,792,208 | $27.3M | 0.00% | −11,692−0.6% | Reduced |
| TCG Crossover Management, LLC | 1,477,593 | $22.5M | 3.07% | 00.0% | Unchanged |
| QVT Financial LP | 1,473,369 | $22.4M | 2.14% | +762,094+107.1% | Added |
| Pfizer Inc | 1,272,214 | $19.4M | 3.86% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,190,810 | $18.1M | 0.00% | +84,685+7.7% | Added |
| Blue Owl Capital Holdings LP | 1,037,107 | $15.8M | 5.09% | −42,214−3.9% | Reduced |
| Octagon Capital Advisors LP | 905,000 | $13.8M | 2.99% | +905,000 | New |
| Qiming U.S. Ventures Management, LLC | 741,691 | $11.3M | 48.83% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 592,975 | $9.02M | 0.02% | +592,975 | New |
| Vivo Capital, LLC | 591,882 | $9.00M | 1.19% | 00.0% | Unchanged |
| Citadel Advisors LLC | 570,588 | $8.68M | 0.01% | −77,530−12.0% | Reduced |
| Nantahala Capital Management, LLC | 532,824 | $8.10M | 0.67% | −4,120−0.8% | Reduced |
| Adage Capital Partners GP, L.L.C. | 500,000 | $7.61M | 0.01% | −100,000−16.7% | Reduced |
| Geode Capital Management, LLC | 496,120 | $7.55M | 0.00% | +14,511+3.0% | Added |
| Velan Capital Investment Management LP | 455,412 | $6.93M | 7.13% | +31,617+7.5% | Added |
| State Street Corp | 449,161 | $6.83M | 0.00% | −351,032−43.9% | Reduced |
| Acuta Capital Partners, LLC | 426,882 | $6.49M | 7.53% | +75,040+21.3% | Added |
| Pictet Asset Management Holding SA | 419,883 | $6.39M | 0.01% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 299,739 | $4.56M | 0.03% | +1,500+0.5% | Added |
| Morgan Stanley | 285,745 | $4.35M | 0.00% | +81,463+39.9% | Added |
| Millennium Management LLC | 268,738 | $4.09M | 0.00% | −95,920−26.3% | Reduced |
| FMR LLC | 243,721 | $3.71M | 0.00% | +208,234+586.8% | Added |
| Bank of America Corp | 236,747 | $3.60M | 0.00% | +166,010+234.7% | Added |
| Nan Fung Group Holdings Ltd | 227,090 | $3.45M | 2.82% | +40,000+21.4% | Added |
| UBS Group AG | 223,683 | $3.40M | 0.00% | +34,452+18.2% | Added |
| Northern Trust Corp | 202,582 | $3.08M | 0.00% | −2,204−1.1% | Reduced |
| Woodline Partners LP | 160,086 | $2.43M | 0.02% | −1,635−1.0% | Reduced |
| Federated Hermes, Inc. | 121,245 | $1.84M | 0.00% | +120,322+13,036.0% | Added |
| Jennison Associates LLC | 118,487 | $1.80M | 0.00% | −727,313−86.0% | Reduced |
| Alyeska Investment Group, L.P. | 115,053 | $1.75M | 0.01% | 00.0% | Unchanged |
| Marshall Wace, LLP | 99,166 | $1.51M | 0.00% | −16,925−14.6% | Reduced |
| Siren, L.L.C. | 91,426 | $1.39M | 0.08% | 00.0% | Unchanged |
| Polymer Capital Management (HK) LTD | 86,934 | $1.32M | 0.23% | +7,534+9.5% | Added |
| Goldman Sachs Group Inc | 82,919 | $1.26M | 0.00% | −22,210−21.1% | Reduced |
| Nuveen, LLC | 77,607 | $1.18M | 0.00% | +77,607 | New |
| Wellington Management Group LLP | 74,739 | $1.14M | 0.00% | +6,140+9.0% | Added |
| Ikarian Capital, LLC | 67,927 | $1.03M | 0.34% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 65,850 | $1.00M | 0.00% | +1,791+2.8% | Added |
| Wexford Capital LP | 63,610 | $967.5K | 0.25% | +43,000+208.6% | Added |
| Bank of New York Mellon Corp | 60,720 | $923.6K | 0.00% | −539−0.9% | Reduced |
| HighTower Advisors, LLC | 53,418 | $812.5K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 48,584 | $739.0K | 0.00% | +35,077+259.7% | Added |
| Brown Advisory Inc | 39,719 | $604.1K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 39,700 | $603.8K | 0.00% | +24,995+170.0% | Added |
| Two Sigma Investments, LP | 36,643 | $557.3K | 0.00% | +15,202+70.9% | Added |
| SG Americas Securities, LLC | 36,180 | $550.0K | 0.00% | +1,368+3.9% | Added |
| American Century Companies Inc | 36,018 | $547.8K | 0.00% | +12,661+54.2% | Added |
| Rhumbline Advisers | 33,033 | $502.4K | 0.00% | −2,558−7.2% | Reduced |
| Barclays PLC | 31,795 | $483.6K | 0.00% | −26,771−45.7% | Reduced |
| EntryPoint Capital, LLC | 24,972 | $379.8K | 0.17% | +24,972 | New |
| Swiss National Bank | 22,400 | $340.7K | 0.00% | +2,300+11.4% | Added |
| Jump Financial, LLC | 20,893 | $317.8K | 0.00% | +20,893 | New |
| Invesco Ltd. | 19,920 | $303.0K | 0.00% | +7,765+63.9% | Added |
| Boothbay Fund Management, LLC | 19,559 | $297.5K | 0.01% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 18,922 | $287.8K | 0.00% | +1,129+6.3% | Added |
| Deutsche Bank AG | 18,011 | $273.9K | 0.00% | −1,997−10.0% | Reduced |
| UBS Oconnor LLC | 17,860 | $271.7K | 0.01% | +17,860 | New |
| Alps Advisors Inc | 17,501 | $266.2K | 0.00% | −3,234−15.6% | Reduced |
| Citigroup Inc | 17,012 | $258.8K | 0.00% | −14,001−45.1% | Reduced |
| Legal & General Group Plc | 15,443 | $234.9K | 0.00% | 00.0% | Unchanged |
| Caption Management, LLC | 14,312 | $217.7K | 0.01% | +14,312 | New |
| Franklin Resources Inc | 13,892 | $211.3K | 0.00% | +13,892 | New |
| Wells Fargo & Company | 13,854 | $210.7K | 0.00% | +305+2.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 13,800 | $209.9K | 0.00% | −578−4.0% | Reduced |
| MetLife Investment Management | 13,553 | $206.1K | 0.00% | −333−2.4% | Reduced |
| Alliancebernstein L.P. | 12,950 | $197.0K | 0.00% | 00.0% | Unchanged |
| Susquehanna Fundamental Investments, LLC | 12,402 | $188.6K | 0.00% | −10,642−46.2% | Reduced |
| Two Sigma Advisers, LP | 12,219 | $185.9K | 0.00% | +12,219 | New |
| Corebridge Financial, Inc. | 11,309 | $172.0K | 0.00% | −168−1.5% | Reduced |
| Intech Investment Management LLC | 10,583 | $161.0K | 0.00% | +369+3.6% | Added |
| California State Teachers Retirement System | 10,505 | $159.8K | 0.00% | 00.0% | Unchanged |
| HSBC Holdings PLC | 10,357 | $158.4K | 0.00% | +10,357 | New |
| Price T Rowe Associates Inc | 10,243 | $156.0K | 0.00% | +10,243 | New |
| BBR Partners, LLC | 10,000 | $152.1K | 0.01% | +10,000 | New |
| Virtus Investment Advisers, Inc. | 7,289 | $110.9K | 0.03% | +7,289 | New |
| New York State Common Retirement Fund | 6,100 | $92.8K | 0.00% | −3,200−34.4% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 5,564 | $84.6K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 5,143 | $78.2K | 0.01% | −294−5.4% | Reduced |
| Skopos Labs, Inc. | 3,923 | $59.7K | 0.01% | +2,347+148.9% | Added |
| Quest Partners LLC | 2,752 | $41.9K | 0.00% | −866−23.9% | Reduced |
| Tower Research Capital LLC (TRC) | 2,368 | $36.0K | 0.00% | +722+43.9% | Added |
| KLP Kapitalforvaltning AS | 2,300 | $35.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,262 | $34.4K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,582 | $24.1K | 0.00% | +1,497+1,761.2% | Added |
| BNP Paribas Arbitrage, SA | 1,568 | $23.8K | 0.00% | −1,803−53.5% | Reduced |
| Farther Finance Advisors, LLC | 1,659 | $23.6K | 0.00% | +1,659 | New |
| Royal Bank of Canada | 1,482 | $23.0K | 0.00% | −1,752−54.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 879 | $14.6K | 0.00% | +25+2.9% | Added |
| Amalgamated Bank | 799 | $12.0K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 656 | $9.98K | 0.00% | +118+21.9% | Added |
| Versant Capital Management, Inc | 600 | $9.13K | 0.00% | +600 | New |
| GAMMA Investing LLC | 494 | $7.51K | 0.00% | +330+201.2% | Added |
| Sterling Capital Management LLC | 398 | $6.05K | 0.00% | −342−46.2% | Reduced |
| Advisor Group Holdings, Inc. | 250 | $3.80K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 121 | $1.84K | 0.00% | +121 | New |
| Jones Financial Companies LLLP | 100 | $1.67K | 0.00% | +100 | New |
| US Bancorp | 79 | $1.20K | 0.00% | −20−20.2% | Reduced |
| Daiwa Securities Group Inc. | 95 | $1.00K | 0.00% | 00.0% | Unchanged |