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, Q4 2025
Institutional positions in Gossamer Bio, Inc. as of Dec 31, 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
- 195
- +35 vs. Q3 2025
- Shares held
- 185.0M
- +5.10M (+2.8%) vs. Q3 2025
- Total value
- $573.4M
- +$100.3M (+21.2%) vs. Q3 2025
- New holders
- 49
- 69 more added
- Sold out
- 14
- 49 more reduced
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Gossamer Bio, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| NEA Management Company, LLC | 18,093,034 | $56.1M | 2.86% | 00.0% | Unchanged |
| BlackRock, Inc. | 17,056,878 | $52.9M | 0.00% | +3,210,824+23.2% | Added |
| Octagon Capital Advisors LP | 13,915,371 | $43.1M | 5.40% | −3,134,629−18.4% | Reduced |
| Vanguard Group Inc | 12,873,209 | $39.9M | 0.00% | +863,436+7.2% | Added |
| State Street Corp | 9,310,969 | $28.9M | 0.00% | +5,427,302+139.7% | Added |
| ARCH Venture Management, LLC | 8,055,916 | $25.0M | 3.83% | 00.0% | Unchanged |
| Samsara BioCapital, LLC | 7,222,559 | $22.4M | 2.31% | +1,092,291+17.8% | Added |
| Siren, L.L.C. | 5,208,968 | $16.1M | 0.48% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 5,190,800 | $16.1M | 1.34% | +131,600+2.6% | Added |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 4,974,041 | $15.4M | 0.50% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 4,872,714 | $15.1M | 0.00% | +183,183+3.9% | Added |
| Palo Alto Investors LP | 4,471,592 | $13.9M | 1.93% | −992,757−18.2% | Reduced |
| Acadian Asset Management LLC | 4,416,903 | $13.7M | 0.02% | −596,066−11.9% | Reduced |
| FMR LLC | 4,237,590 | $13.1M | 0.00% | +152,244+3.7% | Added |
| CI Private Wealth, LLC | 3,845,885 | $11.9M | 0.02% | +3,825,879+19,123.7% | Added |
| Millennium Management LLC | 3,584,288 | $11.1M | 0.01% | −35,041−1.0% | Reduced |
| Two Sigma Investments, LP | 3,397,110 | $10.5M | 0.02% | +1,109,859+48.5% | Added |
| Rock Springs Capital Management LP | 3,266,960 | $10.1M | 0.52% | 00.0% | Unchanged |
| Perceptive Advisors LLC | 3,139,669 | $9.73M | 0.18% | −673,128−17.7% | Reduced |
| Opaleye Management Inc. | 2,720,000 | $8.43M | 1.11% | −5,000−0.2% | Reduced |
| Two Sigma Advisers, LP | 2,596,900 | $8.05M | 0.02% | +726,800+38.9% | Added |
| Jacobs Levy Equity Management, Inc | 2,178,033 | $6.75M | 0.03% | +769,915+54.7% | Added |
| Silverarc Capital Management, LLC | 2,135,722 | $6.62M | 0.96% | −2,643,360−55.3% | Reduced |
| Bank of America Corp | 1,906,669 | $5.91M | 0.00% | −975,235−33.8% | Reduced |
| Goldman Sachs Group Inc | 1,792,114 | $5.56M | 0.00% | +1,492,532+498.2% | Added |
| UBS Group AG | 1,771,381 | $5.49M | 0.00% | −998,665−36.1% | Reduced |
| Charles Schwab Investment Management Inc | 1,685,778 | $5.23M | 0.00% | −43,856−2.5% | Reduced |
| MB Generational Wealth, LLC | 1,605,449 | $4.98M | 2.63% | +190,625+13.5% | Added |
| Balyasny Asset Management LLC | 1,516,691 | $4.70M | 0.01% | +746,117+96.8% | Added |
| Northern Trust Corp | 1,416,540 | $4.39M | 0.00% | −78,863−5.3% | Reduced |
| Deutsche Bank AG | 1,284,335 | $3.98M | 0.00% | +5,414+0.4% | Added |
| AQR Capital Management LLC | 1,119,240 | $3.47M | 0.00% | +472,625+73.1% | Added |
| Walleye Capital LLC | 1,077,032 | $3.34M | 0.02% | +531,353+97.4% | Added |
| Monashee Investment Management LLC | 1,000,000 | $3.10M | 1.75% | +1,000,000 | New |
| Integral Health Asset Management, LLC | 1,000,000 | $3.10M | 0.16% | +1,000,000 | New |
| HRT Financial LP | 956,879 | $2.97M | 0.01% | +956,879 | New |
| Morgan Stanley | 918,888 | $2.85M | 0.00% | +352,469+62.2% | Added |
| Alyeska Investment Group, L.P. | 909,087 | $2.82M | 0.01% | −1,000,000−52.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 750,308 | $2.33M | 0.00% | +114,911+18.1% | Added |
| Citadel Advisors LLC | 704,787 | $2.18M | 0.00% | −1,579,429−69.1% | Reduced |
| Renaissance Technologies LLC | 658,888 | $2.04M | 0.00% | −2,321,300−77.9% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 652,977 | $2.02M | 0.07% | +652,977 | New |
| Wellington Management Group LLP | 601,323 | $1.86M | 0.00% | −40,392−6.3% | Reduced |
| Barclays PLC | 576,533 | $1.79M | 0.00% | +304,827+112.2% | Added |
| Platinum Investment Management Ltd | 561,951 | $1.74M | 0.40% | −202,214−26.5% | Reduced |
| Qube Research & Technologies Ltd | 540,567 | $1.68M | 0.00% | +331,778+158.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 528,053 | $1.64M | 0.00% | +502,604+1,974.9% | Added |
| Silverback Asset Management LLC | 500,000 | $1.55M | 0.23% | 00.0% | Unchanged |
| Invesco Ltd. | 478,909 | $1.48M | 0.00% | +126,823+36.0% | Added |
| XTX Topco Ltd | 456,329 | $1.41M | 0.04% | +181,547+66.1% | Added |
| Exome Asset Management LLC | 451,699 | $1.40M | 0.69% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 447,901 | $1.39M | 0.00% | −310−0.1% | Reduced |
| JPMorgan Chase & Co | 428,903 | $1.33M | 0.00% | +234,534+120.7% | Added |
| Wells Fargo & Company | 361,921 | $1.12M | 0.00% | +245,254+210.2% | Added |
| LPL Financial LLC | 358,917 | $1.11M | 0.00% | +220,591+159.5% | Added |
| Algert Global LLC | 332,336 | $1.03M | 0.02% | +332,336 | New |
| Rafferty Asset Management, LLC | 312,804 | $969.7K | 0.00% | +312,804 | New |
| Monaco Asset Management SAM | 309,211 | $958.6K | 0.28% | −1,070,205−77.6% | Reduced |
| Nuveen, LLC | 308,522 | $956.4K | 0.00% | −768,613−71.4% | Reduced |
| Mackenzie Financial Corp | 306,453 | $954.3K | 0.00% | −2,597−0.8% | Reduced |
| Smith, Moore & Co. | 280,000 | $868.0K | 0.07% | 00.0% | Unchanged |
| EAM Investors, LLC | 278,422 | $863.1K | 0.10% | 00.0% | Unchanged |
| Jain Global LLC | 278,189 | $862.4K | 0.01% | −776,167−73.6% | Reduced |
| SEI Investments Co | 228,896 | $709.6K | 0.00% | +167,710+274.1% | Added |
| Squarepoint Ops LLC | 221,591 | $686.9K | 0.00% | +221,591 | New |
| Rhumbline Advisers | 214,869 | $666.1K | 0.00% | −10,191−4.5% | Reduced |
| ADAR1 Capital Management, LLC | 212,531 | $658.8K | 0.05% | 00.0% | Unchanged |
| Atom Investors LP | 205,639 | $637.5K | 0.05% | +73,087+55.1% | Added |
| Stonepine Capital Management, LLC | 204,770 | $634.8K | 0.50% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 198,709 | $616.0K | 0.00% | −50,109−20.1% | Reduced |
| Alliancebernstein L.P. | 190,220 | $589.7K | 0.00% | +91,540+92.8% | Added |
| Bridgeway Capital Management, LLC | 176,000 | $545.6K | 0.01% | −159,900−47.6% | Reduced |
| Russell Investments Group, Ltd. | 171,071 | $530.3K | 0.00% | −513,978−75.0% | Reduced |
| Jane Street Group, LLC | 155,591 | $482.3K | 0.00% | −546,474−77.8% | Reduced |
| Merit Financial Group, LLC | 155,178 | $481.1K | 0.00% | +20,490+15.2% | Added |
| Panagora Asset Management Inc | 147,296 | $456.6K | 0.00% | +117,397+392.6% | Added |
| Birchview Capital, LP | 138,176 | $428.3K | 0.25% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 136,200 | $422.2K | 0.03% | 00.0% | Unchanged |
| Brevan Howard Capital Management LP | 127,299 | $394.6K | 0.01% | +113,206+803.3% | Added |
| Profund Advisors LLC | 116,503 | $361.2K | 0.01% | +116,503 | New |
| Price T Rowe Associates Inc | 113,138 | $351.0K | 0.00% | +12,480+12.4% | Added |
| Susquehanna Portfolio Strategies, LLC | 111,350 | $345.2K | 0.01% | +92,450+489.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 107,467 | $333.5K | 0.00% | +20,193+23.1% | Added |
| Victory Capital Management Inc | 105,554 | $327.2K | 0.00% | +328+0.3% | Added |
| EntryPoint Capital, LLC | 105,085 | $325.8K | 0.13% | +53,821+105.0% | Added |
| HB Wealth Management, LLC | 95,924 | $297.4K | 0.00% | +1,176+1.2% | Added |
| Lighthouse Investment Partners, LLC | 92,500 | $286.8K | 0.01% | +92,500 | New |
| BNP Paribas Arbitrage, SA | 89,489 | $277.4K | 0.00% | −6,914−7.2% | Reduced |
| Sequoia Financial Advisors, LLC | 88,467 | $274.2K | 0.00% | −29,033−24.7% | Reduced |
| Susquehanna International Group, LLP | 88,455 | $274.2K | 0.00% | +88,455 | New |
| MetLife Investment Management | 85,645 | $265.5K | 0.00% | −15,868−15.6% | Reduced |
| Intech Investment Management LLC | 85,582 | $265.3K | 0.00% | −15,265−15.1% | Reduced |
| VARCOV Co. | 83,868 | $260.0K | 0.10% | +83,868 | New |
| CAPROCK Group, Inc. | 80,000 | $248.0K | 0.01% | +80,000 | New |
| Commonwealth Equity Services, LLC | 78,756 | $244.1K | 0.00% | +36,085+84.6% | Added |
| Cambridge Investment Research Advisors, Inc. | 76,940 | $239.0K | 0.00% | −500−0.6% | Reduced |
| RSM US Wealth Management LLC | 75,111 | $234.3K | 0.00% | −10,000−11.7% | Reduced |
| Caption Management, LLC | 75,375 | $233.7K | 0.01% | +75,375 | New |
| SG Americas Securities, LLC | 74,129 | $230.0K | 0.00% | +52,934+249.7% | Added |
| Virtus Investment Advisers, Inc. | 73,896 | $229.1K | 0.06% | +73,896 | New |