Fund shareholders of Gossamer Bio Inc
ISIN US38341P1021 · United States · LEI 549300ZOC0N2W6PSFR58
- Fund shareholders
- 47
- Of which ETFs
- 11 36 other funds
- Value held
- 3.3M $
- Share of capital
- 3.7 % of 488.8M shares on Aug 8, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 6,910,934 | 1.1M $ | 1.41 % | as of Jun 30, 2026 ↗ | |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 2,243,305 | 369.2K $ | 0.00 % | 0.46 % | as of Jun 30, 2026 ↗ |
| iShares Biotechnology ETF iShares Trust | 1,501,116 | 247.1K $ | 0.00 % | 0.31 % | as of Jun 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 1,150,857 | 265.7K $ | 0.00 % | 0.24 % | as of May 31, 2026 ↗ |
| Schwab U.S. Small-Cap ETF SCHWAB STRATEGIC TRUST | 986,826 | 227.9K $ | 0.00 % | 0.20 % | as of May 31, 2026 ↗ |
| VANGUARD RUSSELL 2000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 977,030 | 225.6K $ | 0.00 % | 0.20 % | as of May 31, 2026 ↗ |
| Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 556,395 | 94.3K $ | 0.00 % | 0.11 % | as of Jul 31, 2026 ↗ |
| VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND | 541,950 | 125.1K $ | 0.00 % | 0.11 % | as of May 31, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 381,135 | 88K $ | 0.00 % | 0.08 % | as of May 31, 2026 ↗ |
| BlackRock Health Sciences Opportunities Portfolio BlackRock Funds | 365,199 | 84.3K $ | 0.00 % | 0.07 % | as of May 29, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 300,421 | 69.4K $ | 0.00 % | 0.06 % | as of May 31, 2026 ↗ |
| iShares Core S&P Total U.S. Stock Market ETF iShares Trust | 294,007 | 48.4K $ | 0.00 % | 0.06 % | as of Jun 30, 2026 ↗ |
| Goldman Sachs Absolute Return Tracker Fund GOLDMAN SACHS TRUST | 267,245 | 44K $ | 0.00 % | 0.05 % | as of Jun 30, 2026 ↗ |
| Eventide Small Cap ETF Strategy Shares | 204,551 | 34.7K $ | 0.10 % | 0.04 % | as of Jul 31, 2026 ↗ |
| VANGUARD RUSSELL 2000 GROWTH INDEX FUND VANGUARD SCOTTSDALE FUNDS | 180,256 | 41.6K $ | 0.00 % | 0.04 % | as of May 31, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 154,416 | 25.4K $ | 0.03 % | as of Jun 30, 2026 ↗ | |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 149,688 | 34.6K $ | 0.00 % | 0.03 % | as of May 31, 2026 ↗ |
| PACE Small/Medium Co Growth Equity Investments PACE SELECT ADVISORS TRUST | 145,404 | 24.6K $ | 0.01 % | 0.03 % | as of Jul 31, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 107,368 | 17.7K $ | 0.00 % | 0.02 % | as of Jun 30, 2026 ↗ |
| Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust | 99,976 | 16.9K $ | 0.02 % | as of Jul 31, 2026 ↗ | |
| Fidelity ZERO Extended Market Index Fund Fidelity Concord Street Trust | 74,746 | 12.7K $ | 0.00 % | 0.02 % | as of Jul 31, 2026 ↗ |
| Small Cap Index Fund VALIC Co I | 73,097 | 16.9K $ | 0.00 % | 0.01 % | as of May 31, 2026 ↗ |
| Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds | 59,400 | 9.8K $ | 0.00 % | 0.01 % | as of Jun 30, 2026 ↗ |
| Invesco Russell 2000 Dynamic Multifactor ETF Invesco Exchange-Traded Self-Indexed Fund Trust | 57,126 | 13.2K $ | 0.00 % | 0.01 % | as of May 31, 2026 ↗ |
| Diversified Equity Alpha Master Portfolio Master Investment Portfolio | 50,820 | 8.4K $ | 0.00 % | 0.01 % | as of Jun 30, 2026 ↗ |
| SIIT SMALL CAP FUND SEI INSTITUTIONAL INVESTMENTS TRUST | 47,330 | 10.9K $ | 0.01 % | 0.01 % | as of May 31, 2026 ↗ |
| Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust | 36,524 | 6K $ | 0.00 % | 0.01 % | as of Jun 30, 2026 ↗ |
| Fidelity Flex Small Cap Index Fund Fidelity Salem Street Trust | 35,839 | 6.1K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| U.S. Small Cap Equity Fund RUSSELL INVESTMENT CO | 30,015 | 5.1K $ | 0.00 % | 0.01 % | as of Jul 31, 2026 ↗ |
| SIIT EXTENDED MARKET INDEX FUND SEI INSTITUTIONAL INVESTMENTS TRUST | 28,300 | 6.5K $ | 0.00 % | 0.01 % | as of May 31, 2026 ↗ |
| Health Sciences Portfolio PACIFIC SELECT FUND | 21,834 | 3.6K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| VANGUARD RUSSELL 3000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 16,683 | 3.9K $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| VIP Extended Market Index Portfolio Variable Insurance Products Fund II | 13,387 | 2.2K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| Invesco Nasdaq Biotechnology ETF Invesco Exchange-Traded Fund Trust II | 12,208 | 2.8K $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| Strategic Equity Allocation Trust John Hancock Variable Insurance Trust | 10,553 | 1.7K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| U.S. Small Cap Equity Fund RUSSELL INVESTMENT FUNDS | 9,057 | 1.5K $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| ProShares Russell 2000 High Income ETF ProShares Trust | 9,043 | 2.1K $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| ProShares Ultra Nasdaq Biotechnology ProShares Trust | 8,555 | 2K $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| Morgan Stanley Pathway Small-Mid Cap Equity ETF MORGAN STANLEY PATHWAY FUNDS | 7,222 | 1.7K $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| ProShares UltraPro Russell2000 ProShares Trust | 7,146 | 1.7K $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| ProShares Ultra Russell2000 ProShares Trust | 7,072 | 1.6K $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| Destinations Small-Mid Cap Equity Fund Brinker Capital Destinations Trust | 6,117 | 1.4K $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| Total Stock Market Index Trust John Hancock Variable Insurance Trust | 5,067 | 834 $ | 0.00 % | 0.00 % | as of Jun 30, 2026 ↗ |
| VIP Total Market Index Portfolio Variable Insurance Products Fund II | 4,901 | 806.7 $ | 0.00 % | as of Jun 30, 2026 ↗ | |
| Knights of Columbus U.S. ALL CAP INDEX FUND ADVISORS' INNER CIRCLE III | 1,290 | 218.7 $ | 0.00 % | 0.00 % | as of Jul 31, 2026 ↗ |
| ProShares Hedge Replication ETF ProShares Trust | 180 | 41.6 $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
| ProShares Russell 2000 Dynamic Buffer ETF ProShares Trust | 57 | 13.2 $ | 0.00 % | 0.00 % | as of May 31, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| Eventide Small Cap ETF Strategy Shares | 0.10 % | as of Jul 31, 2026 ↗ |
| PACE Small/Medium Co Growth Equity Investments PACE SELECT ADVISORS TRUST | 0.01 % | as of Jul 31, 2026 ↗ |
| SIIT SMALL CAP FUND SEI INSTITUTIONAL INVESTMENTS TRUST | 0.01 % | as of May 31, 2026 ↗ |
| Invesco Russell 2000 Dynamic Multifactor ETF Invesco Exchange-Traded Self-Indexed Fund Trust | 0.00 % | as of May 31, 2026 ↗ |
| Invesco Nasdaq Biotechnology ETF Invesco Exchange-Traded Fund Trust II | 0.00 % | as of May 31, 2026 ↗ |
| Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 0.00 % | as of Jul 31, 2026 ↗ |
| iShares Biotechnology ETF iShares Trust | 0.00 % | as of Jun 30, 2026 ↗ |
| ProShares Ultra Nasdaq Biotechnology ProShares Trust | 0.00 % | as of May 31, 2026 ↗ |
| VANGUARD RUSSELL 2000 GROWTH INDEX FUND VANGUARD SCOTTSDALE FUNDS | 0.00 % | as of May 31, 2026 ↗ |
| BlackRock Health Sciences Opportunities Portfolio BlackRock Funds | 0.00 % | as of May 29, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q3 | 47 | -59 | 18,151,648 | -38.1 % |
| 2026Q2 | 106 | -10 | 29,336,079 | -24.2 % |
| 2026Q1 | 116 | +16 | 38,708,584 | +20.7 % |
| 2025Q4 | 100 | +26 | 32,080,421 | +0.1 % |
| 2025Q3 | 74 | +47 | 32,055,953 | +45.9 % |
| 2025Q2 | 27 | +1 | 21,972,186 | -2.8 % |
| 2025Q1 | 26 | -3 | 22,613,453 | -6.9 % |
| 2024Q4 | 29 | -1 | 24,279,265 | -1.6 % |
| 2024Q3 | 30 | -1 | 24,684,601 | -6.5 % |
| 2024Q2 | 31 | -5 | 26,391,381 | -5.3 % |
| 2024Q1 | 36 | +4 | 27,874,613 | +87.3 % |
| 2023Q4 | 32 | 14,879,725 |
Institutional managers
178 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| BlackRock, Inc. | 16,826,695 | 5.5M $ | as of Mar 31, 2026 |
| Kalehua Capital Management LLC | 10,236,293 | 3.4M $ | as of Mar 31, 2026 |
| AQR CAPITAL MANAGEMENT LLC | 10,126,897 | 3.3M $ | as of Mar 31, 2026 |
| ARCH Venture Management, LLC | 8,055,916 | 2.6M $ | as of Mar 31, 2026 |
| Octagon Capital Advisors LP | 7,750,000 | 2.5M $ | as of Mar 31, 2026 |
| SAMSARA BIOCAPITAL, LLC | 7,222,559 | 2.4M $ | as of Mar 31, 2026 |
| Balyasny Asset Management L.P. | 5,922,298 | 1.9M $ | as of Mar 31, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | 5,277,904 | 1.7K $ | as of Mar 31, 2026 |
| Siren, L.L.C. | 5,208,968 | 1.7M $ | as of Mar 31, 2026 |
| 683 Capital Management, LLC | 5,000,000 | 1.6M $ | as of Mar 31, 2026 |
| HHLR ADVISORS, LTD. | 4,974,041 | 1.6M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 4,939,691 | 1.6M $ | as of Mar 31, 2026 |
| Qube Research & Technologies Ltd | 4,917,763 | 1.6M $ | as of Mar 31, 2026 |
| TWO SIGMA INVESTMENTS, LP | 4,780,851 | 1.6M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 4,388,109 | 1.4M $ | as of Mar 31, 2026 |
| Corient Private Wealth LLC | 3,985,383 | 1.3M $ | as of Mar 31, 2026 |
| Squarepoint Ops LLC | 3,398,757 | 1.1M $ | as of Mar 31, 2026 |
| GSA CAPITAL PARTNERS LLP | 3,254,233 | 1.1K $ | as of Mar 31, 2026 |
| BANK OF AMERICA CORP /DE/ | 3,173,725 | 1M $ | as of Mar 31, 2026 |
| BARCLAYS PLC | 3,065,806 | 1M $ | as of Mar 31, 2026 |
| Alyeska Investment Group, L.P. | 2,051,442 | 673.9K $ | as of Mar 31, 2026 |
| UBS Group AG | 1,883,583 | 619.7K $ | as of Mar 31, 2026 |
| Ensign Peak Advisors, Inc | 1,702,125 | 559.1K $ | as of Mar 31, 2026 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 1,695,159 | 556.9K $ | as of Mar 31, 2026 |
| Rock Springs Capital Management LP | 1,609,492 | 528.7K $ | as of Mar 31, 2026 |
Declared shareholders of Gossamer Bio Inc
There are 3 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| D. E. Shaw Valence Portfolios, L.L.C. and 3 others | 6.00 % | 29,128,194 | as of Aug 20, 2026 · SCHEDULE 13D |
| Opaleye Management Inc. and 2 others | 5.10 % | 24,942,565 | as of Jul 22, 2026 · SCHEDULE 13G |
| BlackRock, Inc. | 1.00 % | 4,890,593 | as of Jun 30, 2026 · SCHEDULE 13G |
Cite this page
Titelia. "Fund shareholders of Gossamer Bio Inc". https://titelia.com/en/stocks/gossamer-bio-inc-US38341P1021