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, 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 | $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, 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 |
|---|---|---|---|---|---|
| Citadel Advisors LLC | 95,621 | $4.57M | 0.00% | +95,621 | New |
| Harvest Management LLC | 100,000 | $4.78M | 2.35% | +100,000 | New |
| Chicago Capital Management, LLC | 112,406 | $5.38M | 4.81% | +112,406 | New |
| Gabelli Funds LLC | 119,850 | $5.73M | 0.04% | +119,850 | New |
| Abc Arbitrage SA | 139,800 | $6.69M | 0.66% | +139,800 | New |
| Marshall Wace, LLP | 143,731 | $6.87M | 0.01% | +143,731 | New |
| Charles Schwab Investment Management Inc | 148,706 | $7.11M | 0.00% | +92,004+162.3% | Added |
| Northern Trust Corp | 162,540 | $7.77M | 0.00% | −10,736−6.2% | Reduced |
| UBS Group AG | 178,371 | $8.53M | 0.00% | −51,029−22.2% | Reduced |
| Glazer Capital, LLC | 180,155 | $8.62M | 0.29% | +180,155 | New |
| Millennium Management LLC | 190,625 | $9.12M | 0.01% | −53,251−21.8% | Reduced |
| Alpine Associates Management Inc. | 196,177 | $9.38M | 0.57% | +196,177 | New |
| Versor Investments LP | 217,221 | $10.4M | 1.91% | +217,221 | New |
| Nan Fung Trinity (HK) Ltd | 227,090 | $10.9M | 1.08% | 00.0% | Unchanged |
| Morgan Stanley | 252,093 | $12.1M | 0.00% | −110,643−30.5% | Reduced |
| Acuta Capital Partners, LLC | 268,451 | $12.8M | 13.27% | −15,231−5.4% | Reduced |
| CNH Partners LLC | 374,785 | $17.9M | 0.46% | +374,785 | New |
| Goldman Sachs Group Inc | 376,738 | $18.0M | 0.00% | +197,017+109.6% | Added |
| State Street Corp | 415,970 | $19.9M | 0.00% | −43,641−9.5% | Reduced |
| Geode Capital Management, LLC | 453,952 | $21.7M | 0.00% | −13,135−2.8% | Reduced |
| Highland Capital Management Fund Advisors, L.P. | 455,360 | $21.8M | 1.94% | +455,360 | New |
| Alliancebernstein L.P. | 539,961 | $25.8M | 0.01% | +514,071+1,985.6% | Added |
| Vivo Capital, LLC | 591,882 | $28.3M | 2.28% | 00.0% | Unchanged |
| TIG Advisors, LLC | 619,763 | $29.6M | 1.83% | +619,763 | New |
| Vivaldi Asset Management, LLC | 695,757 | $33.3M | 2.15% | +695,757 | New |
| Qiming U.S. Ventures Management, LLC | 741,691 | $35.5M | 63.76% | 00.0% | Unchanged |
| Magnetar Financial LLC | 966,129 | $46.2M | 0.28% | +966,129 | New |
| FIL Ltd | 1,027,690 | $49.2M | 0.04% | +1,027,690 | New |
| Vanguard Group Inc | 1,165,607 | $55.8M | 0.00% | −41,428−3.4% | Reduced |
| Pfizer Inc | 1,272,214 | $60.8M | 13.91% | 00.0% | Unchanged |
| TCG Crossover Management, LLC | 1,311,783 | $62.7M | 3.09% | −165,810−11.2% | Reduced |
| BlackRock, Inc. | 1,517,777 | $72.6M | 0.00% | −116,165−7.1% | Reduced |
| QVT Financial LP | 2,154,653 | $103.1M | 11.44% | 00.0% | Unchanged |
| Avoro Capital Advisors LLC | 2,555,555 | $122.2M | 1.58% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 0 | $0 | 0.00% | −2,538,925−100.0% | Sold out |
| Blue Owl Capital Holdings LP | 0 | $0 | 0.00% | −997,107−100.0% | Sold out |
| Octagon Capital Advisors LP | 0 | $0 | 0.00% | −905,000−100.0% | Sold out |
| Pictet Asset Management Holding SA | 0 | $0 | 0.00% | −682,129−100.0% | Sold out |
| Nantahala Capital Management, LLC | 0 | $0 | 0.00% | −558,187−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −353,514−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −314,580−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −243,744−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −135,637−100.0% | Sold out |
| Sectoral Asset Management Inc | 0 | $0 | 0.00% | −116,510−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −109,257−100.0% | Sold out |
| Siren, L.L.C. | 0 | $0 | 0.00% | −91,426−100.0% | Sold out |
| Polymer Capital Management (HK) LTD | 0 | $0 | 0.00% | −86,934−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −85,177−100.0% | Sold out |
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −67,927−100.0% | Sold out |
| Brown Advisory Inc | 0 | $0 | 0.00% | −39,719−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −26,876−100.0% | Sold out |
| Wesbanco Bank Inc | 0 | $0 | 0.00% | −26,000−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −22,056−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −19,822−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −19,559−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −13,966−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −12,402−100.0% | Sold out |
| Allostery Investments LP | 0 | $0 | 0.00% | −9,356−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −5,216−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | 0 | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |