Tourmaline Bio, Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| AVORO CAPITAL ADVISORS LLC | 11/14/2025 | 2.56 M | $122.23 M | 0.00% | 9.92% |
| QVT FINANCIAL LP | 11/14/2025 | 2.15 M | $103.06 M | 0.00% | 8.37% |
| BLACKROCK, INC. | 11/12/2025 | 1.52 M | $72.60 M | -7.11% | 5.89% |
| TCG CROSSOVER MANAGEMENT, LLC | 11/17/2025 | 1.31 M | $62.74 M | -11.22% | 5.09% |
| PFIZER INC | 11/13/2025 | 1.27 M | $60.85 M | 0.00% | 4.94% |
| VANGUARD GROUP INC | 11/07/2025 | 1.17 M | $55.75 M | -3.43% | 4.53% |
| FIL LTD | 11/13/2025 | 1.03 M | $49.15 M | 100.00% | 3.99% |
| MAGNETAR FINANCIAL LLC | 11/13/2025 | 966.13 K | $46.21 M | 100.00% | 3.75% |
| QIMING U.S. VENTURES MANAGEMENT, LLC | 11/10/2025 | 741.69 K | $35.48 M | 0.00% | 2.88% |
| FIRST TRUST CAPITAL MANAGEMENT L.P. | 11/17/2025 | 695.76 K | $33.28 M | 100.00% | 2.70% |
| TIG ADVISORS, LLC | 11/14/2025 | 619.76 K | $29.64 M | 100.00% | 2.41% |
| VIVO CAPITAL, LLC | 11/14/2025 | 591.88 K | $28.31 M | 0.00% | 2.30% |
| ALLIANCEBERNSTEIN L.P. | 11/14/2025 | 539.96 K | $25.83 M | 1,985.60% | 2.10% |
| NEXPOINT ASSET MANAGEMENT, L.P. | 11/14/2025 | 455.36 K | $21.78 M | 100.00% | 1.77% |
| GEODE CAPITAL MANAGEMENT, LLC | 11/12/2025 | 453.95 K | $21.72 M | -2.81% | 1.76% |
| STATE STREET CORP | 11/14/2025 | 415.97 K | $19.90 M | -9.50% | 1.62% |
| GOLDMAN SACHS GROUP INC | 11/14/2025 | 376.74 K | $18.02 M | 109.62% | 1.46% |
| AQR ARBITRAGE LLC | 11/14/2025 | 374.79 K | $17.93 M | 100.00% | 1.46% |
| ACUTA CAPITAL PARTNERS, LLC | 11/14/2025 | 268.45 K | $12.84 M | -5.37% | 1.04% |
| MORGAN STANLEY | 11/14/2025 | 252.09 K | $12.06 M | -30.50% | 0.98% |
| NAN FUNG TRINITY (HK) LTD | 11/04/2025 | 227.09 K | $10.86 M | 0.00% | 0.88% |
| VERSOR INVESTMENTS LP | 11/06/2025 | 217.22 K | $10.39 M | 100.00% | 0.84% |
| ALPINE ASSOCIATES MANAGEMENT INC. | 11/06/2025 | 196.18 K | $9.38 M | 100.00% | 0.76% |
| MILLENNIUM MANAGEMENT LLC | 11/14/2025 | 190.63 K | $9.12 M | -21.84% | 0.74% |
| GLAZER CAPITAL, LLC | 11/13/2025 | 180.16 K | $8.62 M | 100.00% | 0.70% |
| UBS GROUP AG | 11/13/2025 | 178.37 K | $8.53 M | -22.24% | 0.69% |
| NORTHERN TRUST CORP | 11/14/2025 | 162.54 K | $7.77 M | -6.20% | 0.63% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 11/10/2025 | 148.71 K | $7.11 M | 162.26% | 0.58% |
| MARSHALL WACE, LLP | 11/13/2025 | 143.73 K | $6.87 M | 100.00% | 0.56% |
| ABC ARBITRAGE SA | 11/06/2025 | 139.80 K | $6.69 M | 100.00% | 0.54% |
| GABELLI FUNDS LLC | 11/12/2025 | 119.85 K | $5.73 M | 100.00% | 0.47% |
| CHICAGO CAPITAL MANAGEMENT, LLC | 11/07/2025 | 112.41 K | $5.38 M | 100.00% | 0.44% |
| HARVEST MANAGEMENT LLC | 11/14/2025 | 100.00 K | $4.78 M | 100.00% | 0.39% |
| CITADEL ADVISORS LLC | 11/14/2025 | 95.62 K | $4.57 M | 100.00% | 0.37% |
| RENAISSANCE TECHNOLOGIES LLC | 11/13/2025 | 91.85 K | $4.39 M | 100.00% | 0.36% |
| TORONTO DOMINION BANK | 11/14/2025 | 89.20 K | $4.27 M | 100.00% | 0.35% |
| BANK OF AMERICA CORP /DE/ | 11/14/2025 | 84.14 K | $4.02 M | -33.94% | 0.33% |
| DIMENSIONAL FUND ADVISORS LP | 11/12/2025 | 69.09 K | $3.30 M | -39.34% | 0.27% |
| WELLINGTON MANAGEMENT GROUP LLP | 11/14/2025 | 63.57 K | $3.04 M | -21.59% | 0.25% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 11/14/2025 | 60.65 K | $2.90 M | 89.10% | 0.24% |
| CARMIGNAC GESTION | 11/13/2025 | 55.41 K | $2.65 M | 100.00% | 0.22% |
| HIGHTOWER ADVISORS, LLC | 11/07/2025 | 53.42 K | $2.55 M | 26.15% | 0.21% |
| WATER ISLAND CAPITAL LLC | 11/14/2025 | 50.97 K | $2.44 M | 100.00% | 0.20% |
| CENTIVA CAPITAL, LP | 11/14/2025 | 50.00 K | $2.39 M | 100.00% | 0.19% |
| BANK OF NEW YORK MELLON CORP | 11/03/2025 | 49.96 K | $2.39 M | -11.84% | 0.19% |
| AMERICAN CENTURY COMPANIES INC | 11/12/2025 | 47.79 K | $2.29 M | 17.81% | 0.19% |
| NUVEEN, LLC | 11/12/2025 | 47.55 K | $2.27 M | -33.64% | 0.18% |
| SUSQUEHANNA PORTFOLIO STRATEGIES, LLC | 11/14/2025 | 43.19 K | $2.07 M | -15.51% | 0.17% |
| TWIN SECURITIES, INC. | 11/14/2025 | 33.30 K | $1.59 M | 100.00% | 0.13% |
| BALYASNY ASSET MANAGEMENT L.P. | 11/14/2025 | 32.57 K | $1.56 M | -94.61% | 0.13% |
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Tourmaline Bio, Inc. institutional Ownership - FAQ's
During the previous two years, 166 institutional investors and hedge funds held shares of Tourmaline Bio, Inc.. The most heavily invested institutionals were:
Avoro Capital Advisors LLC: 2.56 M
QVT Financial LP: 2.15 M
BlackRock, Inc.: 1.52 M
TCG Crossover Management, LLC: 1.31 M
PFIZER INC: 1.27 M
VANGUARD GROUP INC: 1.17 M
84.00% of Tourmaline Bio, Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 23.51 M shares in the last 24 months. This purchase volume represents approximately $1.13 B in transactions.