TOURMALINE BIO INC (TRML)
Institutional ownership reported to the SEC as of Q3 2025, across 8 quarters.
136
Reporting holders
$1.0B
Reported value
0.2%
Calls
0.4%
Puts
+26
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Avoro Capital Advisors LLC | $122.2M | 2,555,555 | 1.58% | 8q | HELD |
| QVT Financial LP | $103.1M | 2,154,653 | 7.27% | 8q | HELD |
| BlackRock, Inc. | $72.6M | 1,517,777 | 0.00% | 5q | -7.1%-$5.6M |
| TCG Crossover Management, LLC | $62.7M | 1,311,783 | 3.09% | 8q | -11.2%-$7.9M |
| Pfizer Inc | $60.8M | 1,272,214 | 13.91% | 4q | HELD |
| VANGUARD GROUP INC | $55.8M | 1,165,607 | 0.00% | 8q | -3.4%-$2.0M |
| FIL Ltd | $49.2M | 1,027,690 | 0.04% | new | NEW |
| Magnetar Financial LLC | $46.2M | 966,129 | 0.28% | new | NEW |
| QIMING U.S. VENTURES MANAGEMENT, LLC | $35.5M | 741,691 | 63.76% | 8q | HELD |
| First Trust Capital Management L.P. | $33.3M | 695,757 | 2.15% | new | NEW |
| TIG Advisors, LLC | $29.6M | 619,763 | 1.76% | new | NEW |
| Vivo Capital, LLC | $28.3M | 591,882 | 2.28% | 8q | HELD |
| ALLIANCEBERNSTEIN L.P. | $25.8M | 539,961 | 0.01% | 5q | +1985.6%+$24.6M |
| NEXPOINT ASSET MANAGEMENT, L.P. | $21.8M | 455,360 | 1.89% | new | NEW |
| GEODE CAPITAL MANAGEMENT, LLC | $21.7M | 453,952 | 0.00% | 8q | -2.8%-$628.4K |
| STATE STREET CORP | $19.9M | 415,970 | 0.00% | 7q | -9.5%-$2.1M |
| GOLDMAN SACHS GROUP INC | $18.0M | 376,738 | 0.00% | 8q | +109.6%+$9.4M |
| AQR Arbitrage LLC | $17.9M | 374,785 | 0.46% | new | NEW |
| ACUTA CAPITAL PARTNERS, LLC | $12.8M | 268,451 | 13.27% | 8q | -5.4%-$728.5K |
| MORGAN STANLEY | $12.1M | 252,093 | 0.00% | 8q | -30.5%-$5.3M |
| NAN FUNG TRINITY (HK) LTD | $10.9M | 227,090 | 1.08% | 2q | HELD |
| Versor Investments LP | $10.4M | 217,221 | 1.91% | new | NEW |
| ALPINE ASSOCIATES MANAGEMENT INC. | $9.4M | 196,177 | 0.57% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $9.1M | 190,625 | 0.00% | 5q | -21.8%-$2.5M |
| GLAZER CAPITAL, LLC | $8.6M | 180,155 | 0.29% | new | NEW |
| UBS Group AG | $8.5M | 178,371 | 0.00% | 7q | -22.2%-$2.4M |
| NORTHERN TRUST CORP | $7.8M | 162,540 | 0.00% | 8q | -6.2%-$513.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $7.1M | 148,706 | 0.00% | 6q | +162.3%+$4.4M |
| MARSHALL WACE, LLP | $6.9M | 143,731 | 0.01% | new | NEW |
| ABC ARBITRAGE SA | $6.7M | 139,800 | 0.66% | new | NEW |
| GABELLI FUNDS LLC | $5.7M | 119,850 | 0.04% | new | NEW |
| Chicago Capital Management, LLC | $5.4M | 112,406 | 4.81% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $4.9M | 60,649 | 0.00% | 8q | +89.1%+$2.3M |
| CITADEL ADVISORS LLC | $4.8M | 95,621 | 0.00% | new | NEW |
| HARVEST MANAGEMENT LLC | $4.8M | 100,000 | 2.07% | new | NEW |
| Centiva Capital, LP | $4.8M | 50,000 | 0.05% | new | NEW |
| RENAISSANCE TECHNOLOGIES LLC | $4.4M | 91,850 | 0.01% | new | NEW |
| TORONTO DOMINION BANK | $4.3M | 89,200 | 0.01% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $4.0M | 84,140 | 0.00% | 8q | -33.9%-$2.1M |
| DIMENSIONAL FUND ADVISORS LP | $3.3M | 69,085 | 0.00% | 2q | -39.3%-$2.1M |
| WELLINGTON MANAGEMENT GROUP LLP | $3.0M | 63,574 | 0.00% | 7q | -21.6%-$837.1K |
| Carmignac Gestion | $2.7M | 55,412 | 0.04% | new | NEW |
| HighTower Advisors, LLC | $2.6M | 53,418 | 0.00% | 8q | +26.1%+$529.6K |
| WATER ISLAND CAPITAL LLC | $2.4M | 50,968 | 0.31% | new | NEW |
| Bank of New York Mellon Corp | $2.4M | 49,964 | 0.00% | 6q | -11.8%-$320.8K |
| AMERICAN CENTURY COMPANIES INC | $2.3M | 47,788 | 0.00% | 4q | +17.8%+$345.5K |
| Nuveen, LLC | $2.3M | 47,553 | 0.00% | 3q | -33.6%-$1.2M |
| Susquehanna Portfolio Strategies, LLC | $2.1M | 43,189 | 0.03% | 2q | -15.5%-$379.3K |
| Twin Securities, Inc. | $1.6M | 33,301 | 0.79% | new | NEW |
| Balyasny Asset Management L.P. | $1.6M | 32,567 | 0.00% | 3q | -94.6%-$27.4M |
| GABELLI & Co INVESTMENT ADVISERS, INC. | $1.5M | 31,050 | 0.24% | new | NEW |
| Invesco Ltd. | $1.5M | 30,558 | 0.00% | 7q | +19.2%+$235.9K |
| CREDIT INDUSTRIEL ET COMMERCIAL | $1.4M | 29,661 | 0.12% | new | NEW |
| JPMORGAN CHASE & CO | $1.4M | 28,582 | 0.00% | 8q | +83.2%+$621.0K |
| BARCLAYS PLC | $1.3M | 27,801 | 0.00% | 8q | -37.3%-$791.1K |
| PRELUDE CAPITAL MANAGEMENT, LLC | $1.3M | 27,282 | 0.10% | new | NEW |
| JANE STREET GROUP, LLC | $1.3M | 16,477 | 0.00% | new | NEW |
| RHUMBLINE ADVISERS | $1.3M | 27,057 | 0.00% | 8q | -9.9%-$141.5K |
| Virtu Financial LLC | $1.3M | 26,273 | 0.07% | new | NEW |
| Swiss National Bank | $1.1M | 22,400 | 0.00% | 4q | HELD |
| ODDO BHF ASSET MANAGEMENT SAS | $995.3K | 20,810 | 0.04% | new | NEW |
| SG Americas Securities, LLC | $965.0K | 20,182 | 0.00% | 6q | -69.0%-$2.2M |
| BCK Capital Management LP | $931.3K | 19,471 | 0.99% | new | NEW |
| OXFORD ASSET MANAGEMENT LLP | $897.1K | 18,756 | 0.29% | new | NEW |
| NATIXIS | $894.4K | 18,700 | 0.00% | new | NEW |
| FORA Capital, LLC | $865.1K | 18,087 | 0.15% | new | NEW |
| Groupe la Francaise | $860.8K | 17,998 | 0.01% | new | NEW |
| Jefferies Financial Group Inc. | $830.5K | 17,363 | 0.00% | new | NEW |
| Weiss Asset Management LP | $783.8K | 16,387 | 0.01% | new | NEW |
| BBR PARTNERS, LLC | $717.5K | 15,000 | 0.04% | 3q | HELD |
| WELLS FARGO & COMPANY/MN | $643.9K | 13,462 | 0.00% | 8q | +10.2%+$59.7K |
| Creative Planning | $635.5K | 13,287 | 0.00% | 2q | +5.5%+$33.2K |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | $621.2K | 12,987 | 0.00% | 2q | -23.2%-$187.3K |
| FRANKLIN RESOURCES INC | $621.0K | 12,984 | 0.00% | 3q | -6.6%-$44.1K |
| DEUTSCHE BANK AG\ | $608.9K | 12,730 | 0.00% | 6q | -13.3%-$93.2K |
| ALPS ADVISORS INC | $596.2K | 12,465 | 0.00% | 6q | -10.0%-$66.1K |
| WOLVERINE ASSET MANAGEMENT LLC | $579.7K | 12,120 | 0.00% | new | NEW |
| Legal & General Group Plc | $563.6K | 11,784 | 0.00% | 7q | +47.0%+$180.2K |
| Jain Global LLC | $530.6K | 11,093 | 0.00% | new | NEW |
| MetLife Investment Management, LLC | $497.1K | 10,394 | 0.00% | 5q | -23.3%-$151.1K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $479.3K | 10,021 | 0.00% | 7q | HELD |
| GAMCO INVESTORS, INC. ET AL | $478.3K | 10,000 | 0.00% | new | NEW |
| Skandinaviska Enskilda Banken AB (publ) | $474.5K | 9,921 | 0.00% | new | NEW |
| PRICE T ROWE ASSOCIATES INC /MD/ | $444.0K | 9,280 | 0.00% | 3q | -13.8%-$70.9K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $385.7K | 8,063 | 0.00% | 5q | -22.6%-$112.8K |
| Sanctuary Advisors, LLC | $365.1K | 7,633 | 0.00% | new | NEW |
| AlphaQuest LLC | $350.3K | 7,323 | 0.02% | 7q | +215.4%+$239.2K |
| Greenland Capital Management LP | $336.3K | 7,032 | 0.03% | new | NEW |
| Verition Fund Management LLC | $334.1K | 6,985 | 0.00% | 2q | -82.6%-$1.6M |
| NEW YORK STATE COMMON RETIREMENT FUND | $291.8K | 6,100 | 0.00% | 6q | HELD |
| SIMPLEX TRADING, LLC | $286.0K | options only | 0.00% | 7q | OPTIONS |
| JANUS HENDERSON GROUP PLC | $283.4K | 5,926 | 0.00% | new | NEW |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $279.7K | 5,848 | 0.00% | new | NEW |
| Velan Capital Investment Management LP | $277.4K | 5,800 | 0.26% | 8q | -98.5%-$18.6M |
| Virtus Investment Advisers, LLC | $273.5K | 5,718 | 0.08% | 3q | +21.0%+$47.5K |
| Mariner, LLC | $266.8K | 5,579 | 0.00% | new | NEW |
| GUGGENHEIM CAPITAL LLC | $260.1K | 5,437 | 0.00% | new | NEW |
| Police & Firemen's Retirement System of New Jersey | $236.2K | 4,939 | 0.00% | 4q | -11.2%-$29.9K |
| BNP PARIBAS FINANCIAL MARKETS | $231.5K | 4,841 | 0.00% | 7q | +130.2%+$131.0K |
| Point72 Asia (Singapore) Pte. Ltd. | $221.8K | 4,637 | 0.03% | new | NEW |
Showing the largest 100 of 136 reported holders.
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2025 | 136 | $1.0B | 21,633,479 | 53 | 21 | 43 | 0.5% |
| Q2 2025 | 110 | $386.8M | 24,187,854 | 20 | 31 | 31 | 0.0% |
| Q1 2025 | 110 | $367.8M | 23,970,584 | 20 | 33 | 32 | 0.9% |
| Q4 2024 | 101 | $464.0M | 22,862,128 | 18 | 39 | 20 | 0.1% |
| Q3 2024 | 91 | $541.9M | 21,059,346 | 19 | 22 | 28 | 0.1% |
| Q2 2024 | 84 | $283.0M | 21,907,616 | 18 | 36 | 14 | 0.4% |
| Q1 2024 | 98 | $485.9M | 20,614,681 | 55 | 26 | 11 | 3.0% |
| Q4 2023 | 54 | $349.2M | 13,434,118 | 54 | 0 | 0 | 0.0% |