Gossamer Bio, Inc.
GOSS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001728117
No open-market purchases or sales by Gossamer Bio, Inc. insiders were filed in the last 90 days; 170 institutions reported holding it in 13F filings for Q2 2026, worth $62.7M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.
13F holders, Q2 2025
Institutional positions in Gossamer Bio, Inc. as of Jun 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
- Institutional holders
- 124
- +5 vs. Q1 2025
- Shares held
- 176.9M
- +7.29M (+4.3%) vs. Q1 2025
- Total value
- $218.1M
- +$31.2M (+16.7%) vs. Q1 2025
- New holders
- 32
- 41 more added
- Sold out
- 27
- 24 more reduced
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GOSS 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 | 170 | $62.7M |
| Q1 2026 | 185 | $58.8M |
| Q4 2025 | 195 | $585.3M |
| Q3 2025 | 164 | $474.2M |
| Q2 2025 | 124 | $218.1M |
| Q1 2025 | 119 | $186.9M |
| Q4 2024 | 105 | $155.7M |
| Q3 2024 | 100 | $173.2M |
| Q2 2024 | 94 | $165.5M |
| Q1 2024 | 109 | $244.2M |
| Q4 2023 | 98 | $197.8M |
| Q3 2023 | 96 | $171.4M |
| Q2 2023 | 99 | $74.7M |
| Q1 2023 | 111 | $97.9M |
| Q4 2022 | 120 | $225.1M |
| Q3 2022 | 160 | $1.02B |
| Q2 2022 | 129 | $533.3M |
| Q1 2022 | 141 | $519.8M |
| Q4 2021 | 133 | $666.5M |
| Q3 2021 | 128 | $687.7M |
| Q2 2021 | 115 | $431.1M |
| Q1 2021 | 123 | $501.9M |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Gossamer Bio, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Octagon Capital Advisors LP | 18,350,000 | $22.6M | 4.95% | 00.0% | Unchanged |
| NEA Management Company, LLC | 18,093,034 | $22.3M | 1.68% | 00.0% | Unchanged |
| BlackRock, Inc. | 12,142,596 | $14.9M | 0.00% | +9,069,823+295.2% | Added |
| Vanguard Group Inc | 11,410,792 | $14.0M | 0.00% | +1,326,911+13.2% | Added |
| ARCH Venture Management, LLC | 8,055,916 | $9.91M | 3.31% | 00.0% | Unchanged |
| FMR LLC | 7,315,325 | $9.00M | 0.00% | −277,655−3.7% | Reduced |
| Acadian Asset Management LLC | 7,146,022 | $8.79M | 0.02% | +787,909+12.4% | Added |
| 683 Capital Management, LLC | 6,340,000 | $7.80M | 0.79% | +240,000+3.9% | Added |
| Samsara BioCapital, LLC | 6,130,268 | $7.54M | 1.54% | 00.0% | Unchanged |
| Palo Alto Investors LP | 5,739,013 | $7.06M | 1.50% | −537,880−8.6% | Reduced |
| Siren, L.L.C. | 5,208,968 | $6.41M | 0.33% | 00.0% | Unchanged |
| Silverarc Capital Management, LLC | 5,146,782 | $6.33M | 1.30% | −1,173,902−18.6% | Reduced |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 4,974,041 | $6.12M | 0.20% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 4,555,080 | $5.60M | 0.00% | +2,282,632+100.4% | Added |
| Alyeska Investment Group, L.P. | 4,459,087 | $5.48M | 0.02% | +295,353+7.1% | Added |
| CI Private Wealth, LLC | 3,693,683 | $4.54M | 0.01% | +302,200+8.9% | Added |
| Monaco Asset Management SAM | 3,550,000 | $4.37M | 1.65% | −1,299,134−26.8% | Reduced |
| Opaleye Management Inc. | 3,545,000 | $4.36M | 0.88% | −742,415−17.3% | Reduced |
| Rock Springs Capital Management LP | 3,266,960 | $4.02M | 0.25% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 2,732,294 | $3.36M | 0.00% | +1,163,139+74.1% | Added |
| State Street Corp | 2,481,406 | $3.05M | 0.00% | +1,598,730+181.1% | Added |
| Deutsche Bank AG | 2,261,455 | $2.78M | 0.00% | +148,710+7.0% | Added |
| Two Sigma Investments, LP | 1,745,127 | $2.15M | 0.00% | +469,715+36.8% | Added |
| Eversept Partners, LP | 1,695,762 | $2.09M | 0.21% | −2,201,079−56.5% | Reduced |
| Two Sigma Advisers, LP | 1,672,200 | $2.06M | 0.00% | +385,000+29.9% | Added |
| Charles Schwab Investment Management Inc | 1,621,419 | $1.99M | 0.00% | +482,472+42.4% | Added |
| Northern Trust Corp | 1,520,126 | $1.87M | 0.00% | +1,110,010+270.7% | Added |
| Platinum Investment Management Ltd | 1,383,863 | $1.70M | 0.11% | −347,492−20.1% | Reduced |
| Laurion Capital Management LP | 1,343,772 | $1.65M | 0.19% | −207,656−13.4% | Reduced |
| Colony Group, LLC | 1,150,000 | $1.41M | 0.00% | +450,000+64.3% | Added |
| Arrowstreet Capital, Limited Partnership | 1,117,972 | $1.38M | 0.00% | +314,157+39.1% | Added |
| Exome Asset Management LLC | 1,097,999 | $1.35M | 1.11% | 00.0% | Unchanged |
| Jacobs Levy Equity Management, Inc | 1,091,564 | $1.34M | 0.01% | +809,300+286.7% | Added |
| Schonfeld Strategic Advisors LLC | 897,388 | $1.10M | 0.01% | +695,673+344.9% | Added |
| DAFNA Capital Management LLC | 849,921 | $1.05M | 0.29% | −57,933−6.4% | Reduced |
| Morgan Stanley | 818,691 | $1.01M | 0.00% | +359,158+78.2% | Added |
| Citadel Advisors LLC | 767,561 | $944.1K | 0.00% | +610,629+389.1% | Added |
| Gsa Capital Partners LLP | 760,448 | $935.0K | 0.07% | +64,895+9.3% | Added |
| Atom Investors LP | 730,357 | $898.3K | 0.08% | +28,382+4.0% | Added |
| Mackenzie Financial Corp | 553,064 | $680.3K | 0.00% | +200,591+56.9% | Added |
| Highbridge Capital Management LLC | 497,694 | $612.2K | 0.03% | 00.0% | Unchanged |
| Millennium Management LLC | 496,248 | $610.4K | 0.00% | −2,181,788−81.5% | Reduced |
| Woodline Partners LP | 495,153 | $609.0K | 0.00% | −233,306−32.0% | Reduced |
| Bridgeway Capital Management, LLC | 485,900 | $597.7K | 0.01% | −75,000−13.4% | Reduced |
| Ameriprise Financial Inc | 434,049 | $533.9K | 0.00% | +434,049 | New |
| Opti Capital Management, LP | – | $509.4K | 0.03% | – | – |
| Bank of New York Mellon Corp | 386,708 | $475.7K | 0.00% | +366,489+1,812.6% | Added |
| Susquehanna International Group, LLP | 382,677 | $470.7K | 0.00% | −2,533,432−86.9% | Reduced |
| Prelude Capital Management, LLC | 374,169 | $460.2K | 0.04% | −2,633−0.7% | Reduced |
| Silverback Asset Management LLC | 350,000 | $430.5K | 0.07% | – | – |
| Barclays PLC | 338,792 | $416.7K | 0.00% | +93,692+38.2% | Added |
| UBS Group AG | 312,742 | $384.7K | 0.00% | +92,470+42.0% | Added |
| Smith, Moore & Co. | 300,000 | $369.0K | 0.03% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 249,784 | $307.2K | 0.00% | −645,740−72.1% | Reduced |
| Nuveen, LLC | 246,864 | $303.6K | 0.00% | +246,864 | New |
| Invesco Ltd. | 239,245 | $294.3K | 0.00% | +195,548+447.5% | Added |
| Group One Trading, L.P. | 233,170 | $286.8K | 0.01% | +25,426+12.2% | Added |
| Rhumbline Advisers | 231,049 | $284.2K | 0.00% | +231,049 | New |
| ADAR1 Capital Management, LLC | 227,228 | $279.5K | 0.05% | 00.0% | Unchanged |
| Royal Bank of Canada | 164,398 | $202.0K | 0.00% | +163,632+21,361.9% | Added |
| Goldman Sachs Group Inc | 160,695 | $197.7K | 0.00% | −778,908−82.9% | Reduced |
| Birchview Capital, LP | 138,176 | $170.0K | 0.17% | 00.0% | Unchanged |
| Alps Advisors Inc | 122,644 | $150.9K | 0.00% | +122,644 | New |
| Sequoia Financial Advisors, LLC | 118,500 | $145.8K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 115,813 | $142.4K | 0.00% | +115,813 | New |
| Victory Capital Management Inc | 105,961 | $130.3K | 0.00% | −158,124−59.9% | Reduced |
| State of Wyoming | 105,175 | $129.4K | 0.02% | +105,175 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 103,947 | $127.9K | 0.00% | +103,947 | New |
| XTX Topco Ltd | 98,976 | $121.7K | 0.01% | +98,976 | New |
| Intech Investment Management LLC | 98,303 | $120.9K | 0.00% | +98,303 | New |
| Wells Fargo & Company | 98,157 | $120.7K | 0.00% | +93,751+2,127.8% | Added |
| Price T Rowe Associates Inc | 95,291 | $118.0K | 0.00% | +30,514+47.1% | Added |
| Quadrature Capital Ltd | 95,796 | $116.9K | 0.00% | +95,796 | New |
| JPMorgan Chase & Co | 90,447 | $111.3K | 0.00% | +74,825+479.0% | Added |
| Diametric Capital, LP | 89,382 | $109.9K | 0.06% | −6,731−7.0% | Reduced |
| New York State Common Retirement Fund | 77,000 | $94.7K | 0.00% | +77,000 | New |
| RSM US Wealth Management LLC | 76,111 | $93.6K | 0.00% | +28,000+58.2% | Added |
| Velan Capital Investment Management LP | 75,000 | $92.3K | 0.09% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 72,061 | $88.6K | 0.00% | +72,061 | New |
| Citigroup Inc | 67,434 | $82.9K | 0.00% | +56,756+531.5% | Added |
| Bank of America Corp | 67,080 | $82.5K | 0.00% | −96,750−59.1% | Reduced |
| LPL Financial LLC | 67,000 | $82.4K | 0.00% | +67,000 | New |
| Lazard Asset Management LLC | 67,362 | $82.0K | 0.00% | +23,601+53.9% | Added |
| D. E. Shaw & Co., Inc. | 56,808 | $69.9K | 0.00% | +56,808 | New |
| Voya Investment Management LLC | 54,428 | $66.9K | 0.00% | +54,428 | New |
| Prudential Financial Inc | 50,415 | $62.0K | 0.00% | +3,365+7.2% | Added |
| Graham Capital Management, L.P. | 46,894 | $57.7K | 0.00% | +17,917+61.8% | Added |
| Tudor Investment Corp Et Al | 46,464 | $57.2K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 42,915 | $52.8K | 0.00% | +42,915 | New |
| ProShare Advisors LLC | 38,946 | $47.9K | 0.00% | +38,946 | New |
| Commonwealth Equity Services, LLC | 35,271 | $43.0K | 0.00% | −6,845−16.3% | Reduced |
| Sivia Capital Partners, LLC | 30,018 | $36.9K | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 28,149 | $34.6K | 0.00% | +654+2.4% | Added |
| Alliancebernstein L.P. | 26,420 | $32.5K | 0.00% | +26,420 | New |
| Silvercrest Asset Management Group LLC | 26,158 | $32.2K | 0.00% | 00.0% | Unchanged |
| Caption Management, LLC | 25,480 | $31.3K | 0.00% | +25,480 | New |
| Drive Wealth Management, LLC | 25,474 | $31.3K | 0.01% | +8,797+52.7% | Added |
| US Bancorp | 24,100 | $29.6K | 0.00% | −9,387−28.0% | Reduced |
| Clearstead Advisors, LLC | 23,550 | $29.0K | 0.00% | +1,550+7.0% | Added |
| CIBC World Markets Corp | 23,401 | $28.8K | 0.00% | +23,401 | New |