Gossamer Bio, Inc. GOSS
CIK 0001728117 · CUSIP 38341P102
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | NEA Management Company, LLC CIK 1512848 · View history | $18.69M 15,838,009 shares | 1.16% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 02 | Artal Group S.A. CIK 1053906 · Amended · View history | $15.70M 13,308,968 shares | 0.40% | +1.25M(+10.40%)Added | SEC filing ↗ May 17, 2024 | ▾ |
| 03 | VANGUARD GROUP INC CIK 102909 · View history | $13.88M 11,763,784 shares | 0.00% | +128.15K(+1.10%)Added | SEC filing ↗ May 10, 2024 | ▾ |
| 04 | EcoR1 Capital, LLC CIK 1587114 · View history | $10.85M 9,195,404 shares | 0.28% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 05 | Octagon Capital Advisors LP CIK 1839435 · View history | $10.84M 9,187,883 shares | 1.32% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 06 | FMR LLC CIK 315066 · View history | $9.66M 8,189,147 shares | 0.00% | -4.07M(-33.20%)Reduced | SEC filing ↗ May 13, 2024 | ▾ |
| 07 | ARCH Venture Management, LLC CIK 1274403 · View history | $9.51M 8,055,916 shares | 11.84% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 08 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $7.66M 6,495,420 shares | 0.01% | +2.27M(+53.80%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 09 | Palo Alto Investors LP CIK 1306923 · View history | $7.54M 6,391,775 shares | 0.85% | +432.89K(+7.30%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 10 | FARALLON CAPITAL MANAGEMENT LLC CIK 909661 · Amended · View history | $7.23M 6,130,272 shares | 0.04% | 0(0.00%)Unchanged | SEC filing ↗ May 24, 2024 | ▾ |
| 11 | Samsara BioCapital, LLC CIK 1744967 · View history | $7.23M 6,130,268 shares | 1.12% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 12 | SILVERARC CAPITAL MANAGEMENT, LLC CIK 1816307 · View history | $7.23M 6,130,268 shares | 2.03% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 13 | Eversept Partners, LP CIK 1697013 · View history | $7.07M 5,994,472 shares | 0.53% | -438.24K(-6.80%)Reduced | SEC filing ↗ May 15, 2024 | ▾ |
| 14 | HHLR ADVISORS, LTD. CIK 1762304 · View history | $5.87M 4,974,041 shares | 0.13% | 0(0.00%)Unchanged | SEC filing ↗ May 14, 2024 | ▾ |
| 15 | PLATINUM INVESTMENT MANAGEMENT LTD CIK 1256071 · View history | $5.54M 4,694,065 shares | 0.22% | -2.26M(-32.50%)Reduced | SEC filing ↗ May 13, 2024 | ▾ |
| 16 | MORGAN STANLEY CIK 895421 · Amended · View history | $5.12M 4,335,100 shares | 0.00% | -1.23M(-22.20%)Reduced | SEC filing ↗ Oct 17, 2024 | ▾ |
| 17 | Madison Avenue Partners, LP CIK 1801265 · View history | $4.89M 4,140,773 shares | 0.79% | -913.70K(-18.10%)Reduced | SEC filing ↗ May 15, 2024 | ▾ |
| 18 | CITADEL ADVISORS LLC CIK 1423053 · View history | $4.57M 3,874,726 shares | 0.00% | -2.27M(-36.90%)Reduced | SEC filing ↗ May 15, 2024 | ▾ |
| 19 | DEUTSCHE BANK AG\ CIK 948046 · Amended · View history | $4.49M 3,807,661 shares | 0.00% | 0(0.00%)Unchanged | SEC filing ↗ Jun 2, 2025 | ▾ |
| 20 | Monashee Investment Management LLC CIK 1627608 · View history | $4.08M 3,459,854 shares | 0.48% | 0(0.00%)Unchanged | SEC filing ↗ May 14, 2024 | ▾ |
Showing 20 / 110 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 110 reporting institutions.
This page includes 20 of 110 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 110 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"38341P102","quarter":"2024Q1","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.