Security record · archived quarter
GOSS
Gossamer Bio, Inc. · Healthcare · Biotechnology
76Tracked holders
-1Δ holders
88.23MShares held
$273.50MReported value
+0New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth -1.3% ·
share flow +10.9% ·
net new positions -1.3%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 60 | -10 | 149.84M | $24.67M | +3 | −14 |
| 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 · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 17.06M | +23.2% | $52.88M | 0.0% | ▲ Add | 3 | SEC ↗ ×11 |
| 2 | The Vanguard Group ✦ (passive) | 12.87M | +7.2% | $39.91M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 3 | State Street Global Advisors ✦ (passive) | 9.31M | +139.8% | $28.86M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 4 | Corient Private Wealth LP | 7.69M | — | $23.84M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 5 | Geode Capital Management ✦ (passive) | 4.87M | +3.9% | $15.11M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 6 | Fidelity (FMR) ✦ | 4.24M | +3.7% | $13.14M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 7 | Millennium Management ✦ | 3.58M | -1.0% | $11.11M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 8 | Two Sigma Investments ✦ | 3.40M | +48.5% | $10.53M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 9 | Bank Of America Corp /De/ | 1.91M | — | $5.91M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 10 | Goldman Sachs Group ✦ | 1.79M | +498.2% | $5.56M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 11 | UBS Group AG | 1.77M | — | $5.49M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 12 | Charles Schwab Investment… | 1.69M | — | $5.23M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Balyasny Asset Management L.P. | 1.52M | — | $4.70M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | Northern Trust Corp | 1.42M | — | $4.39M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 15 | Deutsche Bank Ag\ | 1.28M | — | $3.98M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 16 | AQR Capital Management ✦ | 1.12M | +73.1% | $3.47M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 17 | Hrt Financial Lp | 956.88K | — | $2.97M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | Morgan Stanley ✦ | 918.89K | +62.2% | $2.85M | 0.0% | ▲ Add | 2 | SEC ↗ ×6 |
| 19 | Alyeska Investment Group, L.P. | 909.09K | — | $2.82M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | Arrowstreet Capital ✦ | 750.31K | +18.1% | $2.33M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 21 | Citadel Advisors ✦ | 704.79K | -69.2% | $2.18M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 22 | Renaissance Technologies ✦ | 658.89K | -77.9% | $2.04M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 23 | Wellington Management ✦ | 601.32K | -6.3% | $1.86M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 24 | Barclays Plc | 576.53K | — | $1.79M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Qube Research & Technologies Ltd | 540.57K | — | $1.68M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Connor, Clark & Lunn Investment… | 528.05K | — | $1.64M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Invesco Ltd. | 478.91K | — | $1.48M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 28 | Bank of New York Mellon Corp | 447.90K | — | $1.39M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 29 | JPMorgan Chase ✦ | 428.90K | +10.3% | $1.33M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 30 | Wells Fargo & Company/Mn | 361.92K | — | $1.12M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 31 | LPL Financial LLC | 358.92K | — | $1.11M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Nuveen, LLC | 308.52K | — | $956,419 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 33 | Mackenzie Financial Corp | 306.45K | — | $954,252 | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Sei Investments Co | 228.90K | — | $709,578 | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Squarepoint Ops LLC | 221.59K | — | $686,932 | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Rhumbline Advisers | 214.87K | — | $666,087 | 0.0% | n/c | 1 | SEC ↗ |
| 37 | D. E. Shaw & Co. ✦ | 198.71K | -20.1% | $615,998 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 38 | Alliancebernstein L.P. | 190.22K | — | $589,682 | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Russell Investments Group, Ltd. | 171.07K | — | $530,318 | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 40 | Jane Street Group, Llc | 155.59K | — | $482,332 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 41 | T. Rowe Price ✦ | 113.14K | +12.4% | $351,000 | 0.0% | ▲ Add | 7 | SEC ↗ |
| 42 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 107.47K | — | $333,513 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 43 | Victory Capital Management Inc | 105.55K | — | $327,217 | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Bnp Paribas Financial Markets | 89.49K | — | $277,416 | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Susquehanna International Group, Llp | 88.45K | — | $274,211 | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Commonwealth Equity Services, Llc | 78.76K | — | $244,140 | 0.0% | n/c | 1 | SEC ↗ |
| 47 | HighTower Advisors, LLC | 66.49K | — | $206,131 | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Mariner, LLC | 64.45K | — | $199,926 | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Rockefeller Capital Management L.P. | 60.87K | — | $188,685 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 50 | Manufacturers Life Insurance… | 58.44K | — | $181,167 | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Lazard Asset Management Llc | 56.67K | — | $175,671 | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Tudor Investment Corp Et Al | 50.00K | — | $155,000 | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Citigroup Inc | 49.21K | — | $152,557 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 54 | Creative Planning | 45.61K | — | $141,394 | 0.0% | n/c | 1 | SEC ↗ |
| 55 | ProShare Advisors LLC | 45.34K | — | $140,547 | 0.0% | n/c | 1 | SEC ↗ |
| 56 | New York State Common Retirement… | 43.60K | — | $135,160 | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Prudential Financial Inc | 37.62K | — | $116,607 | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Voya Investment Management Llc | 36.51K | — | $113,181 | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Cetera Investment Advisers | 34.25K | — | $106,172 | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Cwm, Llc | 33.96K | — | $105,000 | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Cerity Partners LLC | 31.91K | — | $98,935 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 62 | State Of Wisconsin Investment Board | 26.30K | — | $81,542 | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Mercer Global Advisors Inc /Adv | 23.98K | — | $74,348 | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Legal & General Group Plc | 20.28K | — | $62,871 | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Jones Financial Companies Lllp | 19.77K | — | $61,275 | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Wealth Enhancement Advisory… | 23.96K | — | $59,281 | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Nomura Holdings Inc | 16.00K | — | $49,600 | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Neuberger Berman Group LLC | 12.56K | — | $38,930 | 0.0% | n/c | 1 | SEC ↗ |
| 69 | California State Teachers… | 11.83K | — | $36,673 | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Principal Financial Group Inc | 11.42K | — | $35,408 | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Mirae Asset Global Investments Co.… | 11.25K | — | $34,866 | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Mml Investors Services, Llc | 10.36K | — | $32,116 | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Royal Bank Of Canada | 5.49K | — | $17,000 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 74 | Osaic Holdings, Inc. | 2.48K | — | $7,671 | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Daiwa Securities Group Inc. | 771 | — | $2,000 | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Pnc Financial Services Group, Inc. | 199 | — | $617 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Adage Capital Partners | $1.91M | 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: Q4 2025 ·
Methodology ·
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