Security record
GOSS
Gossamer Bio, Inc. · Healthcare · Biotechnology
61Tracked holders
-10Δ holders
149.99MShares held
$24.69MReported value
+3New positions
−13Exits
Momentum inputs (comparable managers):
holder breadth -14.1% ·
share flow +30.0% ·
net new positions -16.4%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 61 | -10 | 149.99M | $24.69M | +3 | −13 |
| Q1 2026 | 73 | -3 | 96.26M | $32.15M | +6 | −9 |
| Q4 2025 | 76 | -1 | 88.23M | $273.50M | — | −1 |
| Q3 2025 | 18 | +3 | 53.94M | $141.87M | +3 | — |
| Q2 2025 | 12 | 0 | 44.92M | $55.25M | +1 | −1 |
| Q1 2025 | 9 | +1 | 11.42M | $12.56M | +1 | — |
| Q4 2024 | 8 | 0 | 11.95M | $10.80M | — | — |
| Q3 2024 | 7 | 0 | 18.68M | $18.44M | — | — |
| Q2 2024 | 7 | — | 23.16M | $20.86M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | D. E. Shaw & Co. ✦ | 40.96M | +10417.7% | $6.74M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 2 | AQR Capital Management ✦ | 15.63M | +54.3% | $2.57M | 0.0% | ▲ Add | 4 | SEC ↗ ×7 |
| 3 | Renaissance Technologies ✦ | 11.63M | +854.9% | $1.91M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 4 | Vanguard Capital Management Llc | 9.42M | +0.2% | $1.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Barclays Plc | 7.83M | +155.5% | $1.29M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 6 | BlackRock ✦ (passive) | 7.67M | -54.4% | $1.26M | 0.0% | ▼ Trim | 5 | SEC ↗ ×8 |
| 7 | Arrowstreet Capital ✦ | 7.57M | New | $1.25M | 0.0% | New | 1 | SEC ↗ |
| 8 | Two Sigma Investments ✦ | 7.43M | +55.5% | $1.22M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 9 | Qube Research & Technologies Ltd | 7.07M | +43.7% | $1.16M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | Corient Private Wealth LP | 5.63M | +41.1% | $925,959 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | UBS Group AG | 3.09M | +64.2% | $510,474 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 12 | Squarepoint Ops LLC | 2.56M | -24.8% | $420,780 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | Geode Capital Management ✦ (passive) | 2.48M | -49.8% | $408,706 | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 14 | Millennium Management ✦ | 2.40M | +1182.0% | $395,473 | 0.0% | ▲ Add | 9 | SEC ↗ |
| 15 | Marshall Wace ✦ | 2.11M | New | $338,399 | 0.0% | New | 1 | SEC ↗ |
| 16 | Alyeska Investment Group, L.P. | 2.05M | 0.0% | $337,667 | 0.0% | Held | 3 | SEC ↗ |
| 17 | Hsbc Holdings Plc | 1.58M | +1289.4% | $267,389 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | Ensign Peak Advisors, Inc | 1.45M | -14.8% | $238,831 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | JPMorgan Chase ✦ | 1.23M | +1225.5% | $201,495 | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 20 | Deutsche Bank Ag\ | 1.11M | -15.3% | $188,095 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | Goldman Sachs Group ✦ | 1.13M | -4.4% | $185,743 | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 22 | State Street Global Advisors ✦ (passive) | 1.11M | -74.6% | $183,483 | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 23 | Charles Schwab Investment… | 992.53K | -34.3% | $163,370 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 24 | Mariner, LLC | 594.72K | +42.1% | $97,889 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 25 | Tudor Investment Corp Et Al | 479.58K | +316.2% | $78,939 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 26 | Northern Trust Corp | 458.50K | -67.5% | $75,469 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 27 | Invesco Ltd. | 442.27K | -4.9% | $72,797 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 28 | Bank Of America Corp /De/ | 396.73K | -87.5% | $65,063 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 29 | Susquehanna International Group, Llp | 383.05K | +182.1% | $63,050 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 30 | LPL Financial LLC | 332.53K | -10.6% | $54,735 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 31 | Mercer Global Advisors Inc /Adv | 297.86K | +57.3% | $49,028 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | Morgan Stanley ✦ | 241.59K | -34.2% | $39,766 | 0.0% | ▼ Trim | 4 | SEC ↗ ×5 |
| 33 | Prudential Financial Inc | 227.55K | +306.9% | $37,455 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 34 | Creative Planning | 211.96K | +68.7% | $34,888 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 35 | Cerity Partners LLC | 160.40K | +50.6% | $26,404 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 36 | HighTower Advisors, LLC | 144.36K | +120.0% | $23,761 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Wealth Enhancement Advisory… | 153.90K | +48.8% | $21,955 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Fidelity (FMR) ✦ | 130.32K | +478.8% | $21,451 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 39 | Russell Investments Group, Ltd. | 121.04K | -16.7% | $19,921 | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 40 | Osaic Holdings, Inc. | 120.20K | +8843.8% | $19,232 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 41 | Group One Trading Llc | 110.93K | +32.7% | $18,259 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 42 | Rockefeller Capital Management L.P. | 105.87K | -1.6% | $17,426 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 43 | Balyasny Asset Management L.P. | 104.23K | -98.2% | $17,157 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 44 | Commonwealth Equity Services, Llc | 101.99K | -7.3% | $16,790 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Focus Partners Wealth | 92.85K | +27.2% | $15,283 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | Rhumbline Advisers | 88.60K | -59.1% | $14,618 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 47 | Captrust Financial Advisors | 81.78K | +42.2% | $13,461 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 48 | Bnp Paribas Financial Markets | 73.69K | -22.9% | $12,130 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | Bank of New York Mellon Corp | 45.71K | -89.3% | $7,524 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 50 | Cetera Investment Advisers | 30.75K | 0.0% | $5,061 | 0.0% | Held | 3 | SEC ↗ |
| 51 | Envestnet Asset Management Inc | 18.84K | New | $3,100 | 0.0% | New | 1 | SEC ↗ |
| 52 | Royal Bank Of Canada | 18.52K | +151.3% | $3,000 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 53 | Nuveen, LLC | 17.32K | -87.0% | $2,852 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 54 | Manufacturers Life Insurance… | 15.91K | -72.5% | $2,618 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Neuberger Berman Group LLC | 14.79K | -13.7% | $2,440 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | Mirae Asset Global Investments Co.… | 10.50K | -13.1% | $1,728 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 57 | Citigroup Inc | 6.57K | -63.0% | $1,081 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 58 | Wells Fargo & Company/Mn | 6.50K | -91.5% | $1,070 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 59 | Jones Financial Companies Lllp | 4.50K | -32.4% | $707 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | Pnc Financial Services Group, Inc. | 2.17K | +437.4% | $358 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | TD Waterhouse Canada Inc. | 15 | 0.0% | $3 | 0.0% | Held | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Arrowstreet Capital | $1.25M | 0.0% |
| Marshall Wace | $338,399 | 0.0% |
| Envestnet Asset Management Inc | $3,100 | 0.0% |
Exited
| Alliancebernstein L.P. | $589,682 | was 0.0% |
| Mackenzie Financial Corp | $504,879 | was 0.0% |
| Voya Investment Management Llc | $284,683 | was 0.0% |
| Connor, Clark & Lunn… | $216,226 | was 0.0% |
| T. Rowe Price | $44,000 | was 0.0% |
| Victory Capital Management Inc | $35,196 | was 0.0% |
| MIRAE ASSET GLOBAL ETFS… | $30,031 | was 0.0% |
| New York State Common… | $14,323 | was 0.0% |
| ProShare Advisors LLC | $12,551 | was 0.0% |
| Sei Investments Co | $10,354 | was 0.0% |
| Principal Financial Group Inc | $5,777 | was 0.0% |
| Legal & General Group Plc | $5,682 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 2.17M shares, $845,282 reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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