Gossamer Bio, Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| OCTAGON CAPITAL ADVISORS LP | 08/14/2025 | 18.35 M | $22.57 M | 0.00% | 8.07% |
| NEA MANAGEMENT COMPANY, LLC | 08/14/2025 | 18.09 M | $22.25 M | 0.00% | 7.96% |
| BLACKROCK, INC. | 08/12/2025 | 12.14 M | $14.94 M | 295.17% | 5.34% |
| VANGUARD GROUP INC | 08/11/2025 | 11.41 M | $14.04 M | 13.16% | 5.02% |
| ARCH VENTURE MANAGEMENT, LLC | 08/14/2025 | 8.06 M | $9.91 M | 0.00% | 3.54% |
| FMR LLC | 08/14/2025 | 7.32 M | $9.00 M | -3.66% | 3.22% |
| ACADIAN ASSET MANAGEMENT LLC | 08/07/2025 | 7.15 M | $8.79 M | 12.39% | 3.14% |
| 683 CAPITAL MANAGEMENT, LLC | 08/14/2025 | 6.34 M | $7.80 M | 3.93% | 2.79% |
| SAMSARA BIOCAPITAL, LLC | 08/14/2025 | 6.13 M | $7.54 M | 0.00% | 2.70% |
| PALO ALTO INVESTORS LP | 08/14/2025 | 5.74 M | $7.06 M | -8.57% | 2.53% |
| SIREN, L.L.C. | 08/13/2025 | 5.21 M | $6.41 M | 0.00% | 2.29% |
| SILVERARC CAPITAL MANAGEMENT, LLC | 08/14/2025 | 5.15 M | $6.33 M | -18.57% | 2.26% |
| HHLR ADVISORS, LTD. | 08/14/2025 | 4.97 M | $6.12 M | 0.00% | 2.19% |
| GEODE CAPITAL MANAGEMENT, LLC | 08/08/2025 | 4.56 M | $5.60 M | 100.45% | 2.00% |
| ALYESKA INVESTMENT GROUP, L.P. | 08/14/2025 | 4.46 M | $5.48 M | 7.09% | 1.96% |
| CI PRIVATE WEALTH, LLC | 09/26/2025 | 3.69 M | $4.54 M | 8.91% | 1.63% |
| MONACO ASSET MANAGEMENT SAM | 08/07/2025 | 3.55 M | $4.37 M | -26.79% | 1.56% |
| OPALEYE MANAGEMENT INC. | 08/15/2025 | 3.55 M | $4.36 M | -17.32% | 1.56% |
| ROCK SPRINGS CAPITAL MANAGEMENT LP | 08/14/2025 | 3.27 M | $4.02 M | 0.00% | 1.44% |
| RENAISSANCE TECHNOLOGIES LLC | 08/13/2025 | 2.73 M | $3.36 M | 74.13% | 1.20% |
| STATE STREET CORP | 08/14/2025 | 2.48 M | $3.05 M | 181.12% | 1.09% |
| DEUTSCHE BANK AG\ | 08/12/2025 | 2.26 M | $2.78 M | 7.04% | 1.00% |
| TWO SIGMA INVESTMENTS, LP | 08/14/2025 | 1.75 M | $2.15 M | 36.83% | 0.77% |
| EVERSEPT PARTNERS, LP | 08/14/2025 | 1.70 M | $2.09 M | -56.48% | 0.75% |
| TWO SIGMA ADVISERS, LP | 08/14/2025 | 1.67 M | $2.06 M | 29.91% | 0.74% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 08/12/2025 | 1.62 M | $1.99 M | 42.36% | 0.71% |
| NORTHERN TRUST CORP | 08/13/2025 | 1.52 M | $1.87 M | 270.66% | 0.67% |
| PLATINUM INVESTMENT MANAGEMENT LTD | 07/21/2025 | 1.38 M | $1.70 M | -20.07% | 0.61% |
| LAURION CAPITAL MANAGEMENT LP | 08/14/2025 | 1.34 M | $1.65 M | -13.38% | 0.59% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 08/14/2025 | 1.23 M | $1.51 M | 26.30% | 0.54% |
| COLONY GROUP, LLC | 08/14/2025 | 1.15 M | $1.41 M | 64.29% | 0.51% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 08/13/2025 | 1.12 M | $1.38 M | 39.08% | 0.49% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 08/14/2025 | 1.09 M | $1.34 M | 286.72% | 0.48% |
| SCHONFELD STRATEGIC ADVISORS LLC | 08/14/2025 | 897.39 K | $1.10 M | 344.88% | 0.39% |
| DAFNA CAPITAL MANAGEMENT LLC | 08/14/2025 | 849.92 K | $1.05 M | -6.38% | 0.37% |
| DIADEMA PARTNERS LP | 08/14/2025 | 824.80 K | $1.01 M | 0.00% | 0.36% |
| GSA CAPITAL PARTNERS LLP | 07/22/2025 | 760.45 K | $935.00 K | 9.33% | 0.33% |
| ATOM INVESTORS LP | 08/14/2025 | 730.36 K | $898.34 K | 4.04% | 0.32% |
| MACKENZIE FINANCIAL CORP | 08/13/2025 | 553.06 K | $680.27 K | 56.91% | 0.24% |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 08/12/2025 | 497.69 K | $612.16 K | 0.00% | 0.22% |
| MILLENNIUM MANAGEMENT LLC | 08/14/2025 | 496.25 K | $610.39 K | -81.47% | 0.22% |
| WOODLINE PARTNERS LP | 08/14/2025 | 495.15 K | $609.04 K | -32.03% | 0.22% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 08/14/2025 | 485.90 K | $597.66 K | -13.37% | 0.21% |
| AMERIPRISE FINANCIAL INC | 08/14/2025 | 434.05 K | $533.88 K | 100.00% | 0.19% |
| OPTI CAPITAL MANAGEMENT, LP | 08/14/2025 | 414.15 K | $509.41 K | 0.00% | 0.18% |
| BANK OF NEW YORK MELLON CORP | 08/05/2025 | 386.71 K | $475.65 K | 1,812.60% | 0.17% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 08/14/2025 | 382.68 K | $470.69 K | -86.88% | 0.17% |
| PRELUDE CAPITAL MANAGEMENT, LLC | 08/14/2025 | 374.17 K | $460.23 K | -0.70% | 0.16% |
| SILVERBACK ASSET MANAGEMENT LLC | 08/13/2025 | 350.00 K | $430.50 K | 0.00% | 0.15% |
| BARCLAYS PLC | 08/14/2025 | 338.79 K | $416.00 K | 38.23% | 0.15% |
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Gossamer Bio, Inc. institutional Ownership - FAQ's
During the previous two years, 167 institutional investors and hedge funds held shares of Gossamer Bio, Inc.. The most heavily invested institutionals were:
Octagon Capital Advisors LP: 18.35 M
NEA Management Company, LLC: 18.09 M
BlackRock, Inc.: 12.14 M
VANGUARD GROUP INC: 11.41 M
ARCH Venture Management, LLC: 8.06 M
FMR LLC: 7.32 M
76.69% of Gossamer Bio, Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 183.40 M shares in the last 24 months. This purchase volume represents approximately $441.99 M in transactions.