Tourmaline Bio, Inc.
TRMLDelisted- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001827506
Tourmaline Bio, Inc. was delisted in 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, Q3 2025
Institutional positions in Tourmaline Bio, Inc. as of Sep 30, 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
TRML is no longer listed, so this page shows Q3 2025. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 134
- +25 vs. Q2 2025
- Shares held
- 21.6M
- −2.45M (−10.2%) vs. Q2 2025
- Total value
- $1.03B
- +$649.2M (+168.7%) vs. Q2 2025
- New holders
- 52
- 22 more added
- Sold out
- 27
- 44 more reduced
Compare with Q2 2025: 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 | $386.8M |
| Q1 2025 | 107 | $364.3M |
| Q4 2024 | 101 | $463.6M |
| Q3 2024 | 92 | $541.1M |
| Q2 2024 | 84 | $281.2M |
| Q1 2024 | 96 | $470.8M |
| Q4 2023 | 54 | $349.2M |
| Q3 2023 | 49 | $77.3M |
| Q2 2023 | 58 | $79.7M |
| Q1 2023 | 54 | $50.6M |
| Q4 2022 | 54 | $27.5M |
| Q3 2022 | 56 | $72.2M |
| 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, Q3 2025
Shares, value and share of portfolio for each institution holding Tourmaline Bio, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Avoro Capital Advisors LLC | 2,555,555 | $122.2M | 1.58% | 00.0% | Unchanged |
| QVT Financial LP | 2,154,653 | $103.1M | 11.44% | 00.0% | Unchanged |
| BlackRock, Inc. | 1,517,777 | $72.6M | 0.00% | −116,165−7.1% | Reduced |
| TCG Crossover Management, LLC | 1,311,783 | $62.7M | 3.09% | −165,810−11.2% | Reduced |
| Pfizer Inc | 1,272,214 | $60.8M | 13.91% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,165,607 | $55.8M | 0.00% | −41,428−3.4% | Reduced |
| FIL Ltd | 1,027,690 | $49.2M | 0.04% | +1,027,690 | New |
| Magnetar Financial LLC | 966,129 | $46.2M | 0.28% | +966,129 | New |
| Qiming U.S. Ventures Management, LLC | 741,691 | $35.5M | 63.76% | 00.0% | Unchanged |
| Vivaldi Asset Management, LLC | 695,757 | $33.3M | 2.15% | +695,757 | New |
| TIG Advisors, LLC | 619,763 | $29.6M | 1.83% | +619,763 | New |
| Vivo Capital, LLC | 591,882 | $28.3M | 2.28% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 539,961 | $25.8M | 0.01% | +514,071+1,985.6% | Added |
| Highland Capital Management Fund Advisors, L.P. | 455,360 | $21.8M | 1.94% | +455,360 | New |
| Geode Capital Management, LLC | 453,952 | $21.7M | 0.00% | −13,135−2.8% | Reduced |
| State Street Corp | 415,970 | $19.9M | 0.00% | −43,641−9.5% | Reduced |
| Goldman Sachs Group Inc | 376,738 | $18.0M | 0.00% | +197,017+109.6% | Added |
| CNH Partners LLC | 374,785 | $17.9M | 0.46% | +374,785 | New |
| Acuta Capital Partners, LLC | 268,451 | $12.8M | 13.27% | −15,231−5.4% | Reduced |
| Morgan Stanley | 252,093 | $12.1M | 0.00% | −110,643−30.5% | Reduced |
| Nan Fung Trinity (HK) Ltd | 227,090 | $10.9M | 1.08% | 00.0% | Unchanged |
| Versor Investments LP | 217,221 | $10.4M | 1.91% | +217,221 | New |
| Alpine Associates Management Inc. | 196,177 | $9.38M | 0.57% | +196,177 | New |
| Millennium Management LLC | 190,625 | $9.12M | 0.01% | −53,251−21.8% | Reduced |
| Glazer Capital, LLC | 180,155 | $8.62M | 0.29% | +180,155 | New |
| UBS Group AG | 178,371 | $8.53M | 0.00% | −51,029−22.2% | Reduced |
| Northern Trust Corp | 162,540 | $7.77M | 0.00% | −10,736−6.2% | Reduced |
| Charles Schwab Investment Management Inc | 148,706 | $7.11M | 0.00% | +92,004+162.3% | Added |
| Marshall Wace, LLP | 143,731 | $6.87M | 0.01% | +143,731 | New |
| Abc Arbitrage SA | 139,800 | $6.69M | 0.66% | +139,800 | New |
| Gabelli Funds LLC | 119,850 | $5.73M | 0.04% | +119,850 | New |
| Chicago Capital Management, LLC | 112,406 | $5.38M | 4.81% | +112,406 | New |
| Harvest Management LLC | 100,000 | $4.78M | 2.35% | +100,000 | New |
| Citadel Advisors LLC | 95,621 | $4.57M | 0.00% | +95,621 | New |
| Renaissance Technologies LLC | 91,850 | $4.39M | 0.01% | +91,850 | New |
| Toronto Dominion Bank | 89,200 | $4.27M | 0.01% | +89,200 | New |
| Bank of America Corp | 84,140 | $4.02M | 0.00% | −43,231−33.9% | Reduced |
| Dimensional Fund Advisors LP | 69,085 | $3.30M | 0.00% | −44,806−39.3% | Reduced |
| Wellington Management Group LLP | 63,574 | $3.04M | 0.00% | −17,502−21.6% | Reduced |
| Susquehanna International Group, LLP | 60,649 | $2.90M | 0.00% | +28,576+89.1% | Added |
| Carmignac Gestion | 55,412 | $2.65M | 0.04% | +55,412 | New |
| HighTower Advisors, LLC | 53,418 | $2.55M | 0.00% | +11,073+26.1% | Added |
| Water Island Capital LLC | 50,968 | $2.44M | 0.35% | +50,968 | New |
| Centiva Capital, LP | 50,000 | $2.39M | 0.22% | +50,000 | New |
| Bank of New York Mellon Corp | 49,964 | $2.39M | 0.00% | −6,707−11.8% | Reduced |
| American Century Companies Inc | 47,788 | $2.29M | 0.00% | +7,224+17.8% | Added |
| Nuveen, LLC | 47,553 | $2.27M | 0.00% | −24,103−33.6% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 43,189 | $2.07M | 0.03% | −7,930−15.5% | Reduced |
| Twin Securities, Inc. | 33,301 | $1.59M | 0.80% | +33,301 | New |
| Balyasny Asset Management LLC | 32,567 | $1.56M | 0.00% | −571,994−94.6% | Reduced |
| Gabelli & Co Investment Advisers, Inc. | 31,050 | $1.49M | 0.24% | +31,050 | New |
| Invesco Ltd. | 30,558 | $1.46M | 0.00% | +4,932+19.2% | Added |
| Credit Industriel Et Commercial | 29,661 | $1.42M | 0.23% | +29,661 | New |
| Barclays PLC | 27,801 | $1.33M | 0.00% | −16,540−37.3% | Reduced |
| Prelude Capital Management, LLC | 27,282 | $1.30M | 0.10% | +27,282 | New |
| Rhumbline Advisers | 27,057 | $1.29M | 0.00% | −2,959−9.9% | Reduced |
| Virtu Financial LLC | 26,273 | $1.26M | 0.07% | +26,273 | New |
| Swiss National Bank | 22,400 | $1.07M | 0.00% | 00.0% | Unchanged |
| Oddo BHF Asset Management SAS | 20,810 | $995.3K | 0.04% | +20,810 | New |
| SG Americas Securities, LLC | 20,182 | $965.0K | 0.00% | −44,974−69.0% | Reduced |
| BCK Capital Management LP | 19,471 | $931.3K | 0.99% | +19,471 | New |
| Oxford Asset Management LLP | 18,756 | $897.1K | 0.29% | +18,756 | New |
| Natixis | 18,700 | $894.4K | 0.00% | +18,700 | New |
| FORA Capital, LLC | 18,087 | $865.1K | 0.15% | +18,087 | New |
| Groupe la Francaise | 17,998 | $860.8K | 0.01% | +17,998 | New |
| Jefferies Financial Group Inc. | 17,363 | $830.5K | 0.01% | +17,363 | New |
| Jane Street Group, LLC | 16,477 | $788.1K | 0.00% | +16,477 | New |
| Weiss Asset Management LP | 16,387 | $783.8K | 0.01% | +16,387 | New |
| BBR Partners, LLC | 15,000 | $717.5K | 0.04% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 14,291 | $683.5K | 0.00% | −1,308−8.4% | Reduced |
| Wells Fargo & Company | 13,462 | $643.9K | 0.00% | +1,248+10.2% | Added |
| Creative Planning | 13,287 | $635.5K | 0.00% | +695+5.5% | Added |
| UBS Asset Management Americas Inc | 12,987 | $621.2K | 0.00% | −3,916−23.2% | Reduced |
| Franklin Resources Inc | 12,984 | $621.0K | 0.00% | −922−6.6% | Reduced |
| Deutsche Bank AG | 12,730 | $608.9K | 0.00% | −1,948−13.3% | Reduced |
| Alps Advisors Inc | 12,465 | $596.2K | 0.00% | −1,381−10.0% | Reduced |
| Wolverine Asset Management LLC | 12,120 | $579.7K | 0.01% | +12,120 | New |
| Legal & General Group Plc | 11,784 | $563.6K | 0.00% | +3,767+47.0% | Added |
| Jain Global LLC | 11,093 | $530.6K | 0.01% | +11,093 | New |
| MetLife Investment Management | 10,394 | $497.1K | 0.00% | −3,159−23.3% | Reduced |
| California State Teachers Retirement System | 10,021 | $479.3K | 0.00% | +10.0% | Added |
| Gamco Investors, Inc. Et Al | 10,000 | $478.3K | 0.00% | +10,000 | New |
| Skandinaviska Enskilda Banken AB (publ) | 9,921 | $474.5K | 0.00% | +9,921 | New |
| Price T Rowe Associates Inc | 9,280 | $444.0K | 0.00% | −1,481−13.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 8,063 | $385.7K | 0.00% | −2,358−22.6% | Reduced |
| Sanctuary Advisors, LLC | 7,633 | $365.1K | 0.00% | +7,633 | New |
| Quest Partners LLC | 7,323 | $350.3K | 0.02% | +5,001+215.4% | Added |
| Greenland Capital Management LP | 7,032 | $336.3K | 0.05% | +7,032 | New |
| Verition Fund Management LLC | 6,985 | $334.1K | 0.00% | −33,045−82.6% | Reduced |
| New York State Common Retirement Fund | 6,100 | $291.8K | 0.00% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 5,926 | $283.4K | 0.00% | +5,926 | New |
| Manufacturers Life Insurance Company, The | 5,848 | $279.7K | 0.00% | +5,848 | New |
| Velan Capital Investment Management LP | 5,800 | $277.4K | 0.26% | −388,089−98.5% | Reduced |
| Virtus Investment Advisers, Inc. | 5,718 | $273.5K | 0.08% | +993+21.0% | Added |
| Mariner, LLC | 5,579 | $266.8K | 0.00% | +5,579 | New |
| Guggenheim Capital LLC | 5,437 | $260.1K | 0.00% | +5,437 | New |
| Police & Firemen's Retirement System of New Jersey | 4,939 | $236.2K | 0.00% | −625−11.2% | Reduced |
| BNP Paribas Arbitrage, SA | 4,841 | $231.5K | 0.00% | +2,738+130.2% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 4,637 | $221.8K | 0.03% | +4,637 | New |
| China Universal Asset Management Co., Ltd. | 4,503 | $215.4K | 0.02% | −656−12.7% | Reduced |