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 $60.8M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Gossamer Bio, Inc. as of Mar 31, 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
- 185
- −7 vs. Q4 2025
- Shares held
- 169.8M
- −2.28M (−1.3%) vs. Q4 2025
- Total value
- $56.3M
- −$477.1M (−89.4%) vs. Q4 2025
- New holders
- 47
- 72 more added
- Sold out
- 54
- 48 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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 | $60.8M |
| Q1 2026 | 185 | $56.3M |
| Q4 2025 | 195 | $573.4M |
| Q3 2025 | 164 | $473.7M |
| Q2 2025 | 124 | $218.0M |
| Q1 2025 | 119 | $186.9M |
| Q4 2024 | 105 | $155.0M |
| Q3 2024 | 100 | $172.6M |
| Q2 2024 | 94 | $164.7M |
| Q1 2024 | 109 | $233.5M |
| Q4 2023 | 98 | $192.0M |
| Q3 2023 | 96 | $171.2M |
| Q2 2023 | 99 | $74.4M |
| Q1 2023 | 111 | $97.9M |
| Q4 2022 | 120 | $225.1M |
| Q3 2022 | 160 | $1.02B |
| Q2 2022 | 129 | $533.2M |
| Q1 2022 | 141 | $519.8M |
| Q4 2021 | 133 | $664.9M |
| Q3 2021 | 128 | $687.7M |
| Q2 2021 | 115 | $431.1M |
| Q1 2021 | 123 | $501.9M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Gossamer Bio, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| China Universal Asset Management Co., Ltd. | 41,074 | $13.5K | 0.00% | −6,642−13.9% | Reduced |
| Skaana Management L.P. | 40,200 | $13.2K | 0.01% | +40,200 | New |
| Letko, Brosseau & Associates Inc | 39,400 | $12.9K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 38,206 | $12.6K | 0.00% | −7,132−15.7% | Reduced |
| RMB Capital Management, LLC | 37,237 | $12.2K | 0.00% | +26,566+249.0% | Added |
| Tower Research Capital LLC (TRC) | 36,342 | $11.9K | 0.00% | +19,107+110.9% | Added |
| Vickerman Investment Advisors, Inc. | 34,787 | $11.4K | 0.00% | 00.0% | Unchanged |
| Alpine Global Management, LLC | 32,827 | $10.8K | 0.00% | +32,827 | New |
| SEI Investments Co | 31,520 | $10.4K | 0.00% | −197,376−86.2% | Reduced |
| Bull Harbor Capital LLC | 31,196 | $10.2K | 0.00% | +31,196 | New |
| Cetera Investment Advisers | 30,749 | $10.1K | 0.00% | −3,500−10.2% | Reduced |
| Evernest Financial Advisors, LLC | 28,769 | $10.0K | 0.00% | +369+1.3% | Added |
| CSS LLC | 30,000 | $9.86K | 0.00% | +30,000 | New |
| Kestra Advisory Services, LLC | 28,500 | $9.36K | 0.00% | +12,500+78.1% | Added |
| Gerber, LLC | 28,249 | $9.28K | 0.01% | 00.0% | Unchanged |
| Beacon Pointe Advisors, LLC | 28,000 | $9.20K | 0.00% | +17,000+154.5% | Added |
| R.H. Investment Group, LLC | 26,300 | $9.14K | 0.01% | +26,300 | New |
| NorthCrest Asset Manangement, LLC | 24,686 | $9.13K | 0.00% | +13,202+115.0% | Added |
| Buckingham Strategic Partners | 26,267 | $8.63K | 0.00% | +26,267 | New |
| Gladstone Institutional Advisory LLC | 24,955 | $8.20K | 0.00% | +10,785+76.1% | Added |
| Clearstead Advisors, LLC | 23,550 | $7.74K | 0.00% | −117−0.5% | Reduced |
| MAI Capital Management | 22,597 | $7.42K | 0.00% | +22,512+26,484.7% | Added |
| FMR LLC | 22,516 | $7.40K | 0.00% | −4,215,074−99.5% | Reduced |
| Krilogy Financial LLC | 16,611 | $7.27K | 0.00% | +16,611 | New |
| Rialto Wealth Management, LLC | 20,552 | $6.75K | 0.00% | +14,800+257.3% | Added |
| Axq Capital, LP | 20,421 | $6.71K | 0.00% | −42,696−67.6% | Reduced |
| Brighton Jones LLC | 20,068 | $6.59K | 0.00% | +20,068 | New |
| Angeles Wealth Management, LLC | 20,000 | $6.57K | 0.00% | +20,000 | New |
| Essential Partners LLC | 18,874 | $6.20K | 0.00% | +16,443+676.4% | Added |
| Birchview Capital, LP | 18,176 | $5.97K | 0.00% | −120,000−86.8% | Reduced |
| VestGen Advisors, LLC | 17,437 | $5.94K | 0.00% | +17,437 | New |
| Citigroup Inc | 17,754 | $5.83K | 0.00% | −31,458−63.9% | Reduced |
| Principal Financial Group Inc | 17,586 | $5.78K | 0.00% | +6,164+54.0% | Added |
| Drive Wealth Management, LLC | 17,550 | $5.76K | 0.00% | −3,770−17.7% | Reduced |
| JustInvest LLC | 17,531 | $5.76K | 0.00% | +1,412+8.8% | Added |
| Change Path, LLC | 17,434 | $5.73K | 0.00% | +17,434 | New |
| Legal & General Group Plc | 17,298 | $5.68K | 0.00% | −2,983−14.7% | Reduced |
| Xponance, Inc. | 17,201 | $5.65K | 0.00% | +2,304+15.5% | Added |
| Neuberger Berman Group LLC | 17,151 | $5.64K | 0.00% | +4,593+36.6% | Added |
| Bridgeway Capital Management, LLC | 16,000 | $5.26K | 0.00% | −160,000−90.9% | Reduced |
| Ameritas Investment Partners, Inc. | 15,867 | $5.21K | 0.00% | 00.0% | Unchanged |
| Ground Swell Capital, LLC | 15,356 | $5.04K | 0.01% | +15,356 | New |
| Brinker Capital Investments, LLC | 15,220 | $5.00K | 0.00% | +15,220 | New |
| Integrated Wealth Concepts LLC | 14,424 | $4.74K | 0.00% | +14,424 | New |
| Baker Avenue Asset Management, LP | 13,221 | $4.34K | 0.00% | +13,221 | New |
| Oppenheimer & Co Inc | 13,000 | $4.27K | 0.00% | −24,500−65.3% | Reduced |
| Sentinus, LLC | 12,862 | $4.22K | 0.00% | +12,862 | New |
| Stratos Wealth Partners, LTD. | 12,812 | $4.21K | 0.00% | +12,812 | New |
| Janney Montgomery Scott LLC | 11,200 | $4.00K | 0.00% | −1,500−11.8% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 12,073 | $3.97K | 0.00% | +826+7.3% | Added |
| Caerus Investment Advisors, LLC | 11,839 | $3.89K | 0.00% | +11,839 | New |
| Curated Wealth Partners LLC | 11,782 | $3.87K | 0.00% | +11,782 | New |
| Beese Fulmer Investment Management, Inc. | 11,135 | $3.66K | 0.00% | +11,135 | New |
| State of Wyoming | 10,941 | $3.59K | 0.00% | +10,941 | New |
| Beaumont Capital Management, LLC | 10,772 | $3.54K | 0.00% | +10,772 | New |
| Baader Bank INC | 16,077 | $3.47K | 0.00% | +16,077 | New |
| California State Teachers Retirement System | 10,399 | $3.42K | 0.00% | −1,431−12.1% | Reduced |
| Pallas Capital Advisors LLC | 10,367 | $3.41K | 0.00% | +10,367 | New |
| MML Investors Services, LLC | 10,000 | $3.29K | 0.00% | −360−3.5% | Reduced |
| Mma Asset Management LLC | 10,000 | $3.29K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 7,750 | $2.55K | 0.00% | +7,000+933.3% | Added |
| Jones Financial Companies LLLP | 6,654 | $2.30K | 0.00% | −13,112−66.3% | Reduced |
| Royal Bank of Canada | 7,369 | $2.00K | 0.00% | +1,875+34.1% | Added |
| EverSource Wealth Advisors, LLC | 5,957 | $1.96K | 0.00% | +5,302+809.5% | Added |
| IFP Advisors, Inc | 5,843 | $1.92K | 0.00% | +4,898+518.3% | Added |
| GF Fund Management Co. Ltd. | 5,173 | $1.70K | 0.00% | +626+13.8% | Added |
| Allworth Financial LP | 4,819 | $1.58K | 0.00% | +2,805+139.3% | Added |
| Farther Finance Advisors, LLC | 3,674 | $1.34K | 0.00% | +3,210+691.8% | Added |
| Rothschild Investment LLC | 2,013 | $661 | 0.00% | +1,760+695.7% | Added |
| Basecamp Wealth Advisors LLC | 1,912 | $628 | 0.00% | +1,912 | New |
| Nisa Investment Advisors, LLC | 1,883 | $619 | 0.00% | −130−6.5% | Reduced |
| Wealth Preservation Advisors, LLC | 1,504 | $494 | 0.00% | +1,504 | New |
| Advisor Group Holdings, Inc. | 1,344 | $441 | 0.00% | −1,131−45.7% | Reduced |
| Sterling Capital Management LLC | 1,265 | $416 | 0.00% | 00.0% | Unchanged |
| Heritage Wealth Advisors | 1,000 | $329 | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 1,000 | $329 | 0.00% | 00.0% | Unchanged |
| Natixis | 920 | $302 | 0.00% | +920 | New |
| SJS Investment Consulting Inc. | 705 | $232 | 0.00% | +646+1,094.9% | Added |
| SBI Securities Co., Ltd. | 614 | $202 | 0.00% | −3,786−86.0% | Reduced |
| The PNC Financial Services Group, Inc. | 404 | $133 | 0.00% | +205+103.0% | Added |
| Cornerstone Financial Management LLC | 282 | $93 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 23 | $8 | 0.00% | −379−94.3% | Reduced |
| Morton Brown Family Wealth, LLC | 25 | $8 | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 15 | $5 | 0.00% | +15 | New |
| HHM Wealth Advisors, LLC | 1 | $1 | 0.00% | +1 | New |
| Palo Alto Investors LP | 0 | $0 | 0.00% | −4,471,592−100.0% | Sold out |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −3,139,669−100.0% | Sold out |
| Opaleye Management Inc. | 0 | $0 | 0.00% | −2,720,000−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −2,596,900−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −2,135,722−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −1,077,032−100.0% | Sold out |
| Monashee Investment Management LLC | 0 | $0 | 0.00% | −1,000,000−100.0% | Sold out |
| Integral Health Asset Management, LLC | 0 | $0 | 0.00% | −1,000,000−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −956,879−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −750,308−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −704,787−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −601,323−100.0% | Sold out |
| Platinum Investment Management Ltd | 0 | $0 | 0.00% | −561,951−100.0% | Sold out |
| Silverback Asset Management LLC | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Exome Asset Management LLC | 0 | $0 | 0.00% | −451,699−100.0% | Sold out |