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 2026
Institutional positions in Gossamer Bio, Inc. as of Jun 30, 2026. 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
- 170
- −14 vs. Q1 2026
- Shares held
- 370.6M
- +201.1M (+118.7%) vs. Q1 2026
- Total value
- $60.8M
- +$4.63M (+8.2%) vs. Q1 2026
- New holders
- 28
- 62 more added
- Sold out
- 42
- 44 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Gossamer Bio, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wealth Enhancement Advisory Services, LLC | 153,902 | $22.0K | 0.00% | +50,459+48.8% | Added |
| HighTower Advisors, LLC | 144,358 | $23.8K | 0.00% | +78,728+120.0% | Added |
| Tower Research Capital LLC (TRC) | 144,473 | $23.8K | 0.00% | +108,131+297.5% | Added |
| SG Americas Securities, LLC | 146,737 | $24.0K | 0.00% | +18,169+14.1% | Added |
| Sivia Capital Partners, LLC | 152,298 | $25.1K | 0.00% | +60,619+66.1% | Added |
| Cerity Partners LLC | 160,399 | $26.4K | 0.00% | +53,880+50.6% | Added |
| Eventide Asset Management, LLC | 163,440 | $26.8K | 0.00% | +163,440 | New |
| Merit Financial Group, LLC | 169,596 | $27.9K | 0.00% | +15,155+9.8% | Added |
| Creative Planning | 211,955 | $34.9K | 0.00% | +86,328+68.7% | Added |
| ADAR1 Capital Management, LLC | 212,531 | $35.0K | 0.00% | −75,000−26.1% | Reduced |
| Prudential Financial Inc | 227,550 | $37.5K | 0.00% | +171,625+306.9% | Added |
| Morgan Stanley | 241,591 | $39.8K | 0.00% | −125,787−34.2% | Reduced |
| Waddell & Associates, LLC | 261,798 | $43.1K | 0.00% | +194,246+287.6% | Added |
| Mercer Global Advisors Inc | 297,863 | $49.0K | 0.00% | +108,535+57.3% | Added |
| LPL Financial LLC | 332,534 | $54.7K | 0.00% | −39,200−10.5% | Reduced |
| Susquehanna International Group, LLP | 383,049 | $63.0K | 0.00% | +247,276+182.1% | Added |
| Bank of America Corp | 396,727 | $65.1K | 0.00% | −2,776,998−87.5% | Reduced |
| Invesco Ltd. | 442,268 | $72.8K | 0.00% | −22,700−4.9% | Reduced |
| Northern Trust Corp | 458,498 | $75.5K | 0.00% | −950,462−67.5% | Reduced |
| Virtu Financial LLC | 463,708 | $76.0K | 0.00% | +200,496+76.2% | Added |
| Tudor Investment Corp Et Al | 479,581 | $78.9K | 0.00% | +364,344+316.2% | Added |
| RSM US Wealth Management LLC | 540,111 | $88.9K | 0.00% | +290,000+115.9% | Added |
| Vanguard Portfolio Management LLC | 544,212 | $89.8K | 0.00% | −1,616,867−74.8% | Reduced |
| Ieq Capital, LLC | 591,254 | $97.3K | 0.00% | +197,515+50.2% | Added |
| Mariner, LLC | 594,719 | $97.9K | 0.00% | +176,315+42.1% | Added |
| Panagora Asset Management Inc | 733,216 | $120.7K | 0.00% | +263,270+56.0% | Added |
| Ishara Investments LP | 820,000 | $135.0K | 0.10% | 00.0% | Unchanged |
| Smith, Moore & Co. | 900,000 | $148.1K | 0.01% | +430,000+91.5% | Added |
| Charles Schwab Investment Management Inc | 992,527 | $163.4K | 0.00% | −517,549−34.3% | Reduced |
| NEA Management Company, LLC | 1,000,000 | $164.6K | 0.01% | 00.0% | Unchanged |
| Hennion & Walsh Asset Management, Inc. | 1,098,914 | $180.9K | 0.01% | +270,195+32.6% | Added |
| State Street Corp | 1,114,718 | $183.5K | 0.00% | −3,273,391−74.6% | Reduced |
| Goldman Sachs Group Inc | 1,128,451 | $185.7K | 0.00% | −52,093−4.4% | Reduced |
| Deutsche Bank AG | 1,106,441 | $188.1K | 0.00% | −199,445−15.3% | Reduced |
| JPMorgan Chase & Co | 1,228,634 | $201.5K | 0.00% | +1,135,944+1,225.5% | Added |
| Vanguard Fiduciary Trust Co | 1,245,392 | $205.5K | 0.00% | −158,893−11.3% | Reduced |
| Ensign Peak Advisors, Inc | 1,450,979 | $238.8K | 0.00% | −251,146−14.8% | Reduced |
| HSBC Holdings PLC | 1,583,118 | $267.4K | 0.00% | +1,469,175+1,289.4% | Added |
| Acadian Asset Management LLC | 1,792,135 | $293.0K | 0.00% | −3,485,769−66.0% | Reduced |
| Alyeska Investment Group, L.P. | 2,051,442 | $337.7K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 2,114,988 | $338.4K | 0.00% | +2,114,988 | New |
| Jacobs Levy Equity Management, Inc | 2,187,402 | $360.0K | 0.00% | +492,243+29.0% | Added |
| MB Generational Wealth, LLC | 2,217,451 | $365.0K | 0.18% | +685,309+44.7% | Added |
| Millennium Management LLC | 2,402,633 | $395.5K | 0.00% | +2,215,215+1,182.0% | Added |
| Geode Capital Management, LLC | 2,481,605 | $408.7K | 0.00% | −2,458,086−49.8% | Reduced |
| Squarepoint Ops LLC | 2,556,378 | $420.8K | 0.00% | −842,379−24.8% | Reduced |
| UBS Group AG | 3,093,785 | $510.5K | 0.00% | +1,210,202+64.2% | Added |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 4,974,041 | $818.7K | 0.10% | 00.0% | Unchanged |
| Siren, L.L.C. | 5,208,968 | $857.4K | 0.02% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 5,632,698 | $927.1K | 0.00% | +1,647,315+41.3% | Added |
| Qube Research & Technologies Ltd | 7,065,756 | $1.16M | 0.00% | +2,147,993+43.7% | Added |
| Samsara BioCapital, LLC | 7,222,559 | $1.19M | 0.10% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 7,432,001 | $1.22M | 0.00% | +2,651,150+55.5% | Added |
| Arrowstreet Capital, Limited Partnership | 7,573,388 | $1.25M | 0.00% | +7,573,388 | New |
| BlackRock, Inc. | 7,669,943 | $1.26M | 0.00% | −9,156,752−54.4% | Reduced |
| Octagon Capital Advisors LP | 7,750,000 | $1.28M | 0.12% | 00.0% | Unchanged |
| Barclays PLC | 7,832,522 | $1.29M | 0.00% | +4,766,716+155.5% | Added |
| ARCH Venture Management, LLC | 8,055,916 | $1.33M | 0.12% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 9,416,023 | $1.55M | 0.00% | +21,430+0.2% | Added |
| Kalehua Capital Management LLC | 11,149,363 | $1.84M | 1.05% | +913,070+8.9% | Added |
| Renaissance Technologies LLC | 11,629,896 | $1.91M | 0.00% | +10,412,028+854.9% | Added |
| Wolverine Asset Management LLC | 12,894,746 | $2.12M | 0.03% | +12,894,746 | New |
| Gsa Capital Partners LLP | 14,986,947 | $2.47M | 0.16% | +11,732,714+360.5% | Added |
| AQR Capital Management LLC | 15,629,993 | $2.57M | 0.00% | +5,503,096+54.3% | Added |
| Worth Venture Partners, LLC | 25,017,881 | $4.12M | 9.29% | +25,017,881 | New |
| Context Capital Management, LLC | 28,946,459 | $4.76M | 0.10% | +28,946,459 | New |
| DeepCurrents Investment Group LLC | 37,665,073 | $6.03M | 0.21% | +37,665,073 | New |
| 683 Capital Management, LLC | 39,198,868 | $6.45M | 0.59% | +34,198,868+684.0% | Added |
| D. E. Shaw & Co., Inc. | 40,959,285 | $6.74M | 0.00% | +40,569,854+10,417.7% | Added |
| HHM Wealth Advisors, LLC | 1 | – | – | 00.0% | Unchanged |
| Alliancebernstein L.P. | 0 | $0 | 0.00% | −190,220−100.0% | Sold out |
| Rock Springs Capital Management LP | 0 | $0 | 0.00% | −1,609,492−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −1,536,923−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −866,615−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −679,125−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −658,221−100.0% | Sold out |
| Price T Rowe Associates Inc | 0 | $0 | 0.00% | −132,026−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −131,216−100.0% | Sold out |
| Nine Masts Capital Ltd | 0 | $0 | 0.00% | −114,766−100.0% | Sold out |
| Victory Capital Management Inc | 0 | $0 | 0.00% | −107,141−100.0% | Sold out |
| Mirae Asset Global ETFs Holdings Ltd. | 0 | $0 | 0.00% | −91,418−100.0% | Sold out |
| Virtus Investment Advisers, Inc. | 0 | $0 | 0.00% | −75,746−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −71,282−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −54,002−100.0% | Sold out |
| Police & Firemen's Retirement System of New Jersey | 0 | $0 | 0.00% | −51,314−100.0% | Sold out |
| New York State Common Retirement Fund | 0 | $0 | 0.00% | −43,600−100.0% | Sold out |
| Letko, Brosseau & Associates Inc | 0 | $0 | 0.00% | −39,400−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −38,206−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −32,827−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −31,520−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −20,421−100.0% | Sold out |
| Angeles Wealth Management, LLC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −17,586−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −17,298−100.0% | Sold out |
| Xponance, Inc. | 0 | $0 | 0.00% | −17,201−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −16,000−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −15,867−100.0% | Sold out |
| Brinker Capital Investments, LLC | 0 | $0 | 0.00% | −15,220−100.0% | Sold out |
| Stratos Wealth Partners, LTD. | 0 | $0 | 0.00% | −12,812−100.0% | Sold out |
| Janney Montgomery Scott LLC | 0 | $0 | 0.00% | −11,200−100.0% | Sold out |