Security record · archived quarter
ARWR
Arrowhead Pharmaceuticals, Inc. · Healthcare · Biotechnology
119Tracked holders
+2Δ holders
83.16MShares held
$5.52BReported value
+3New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +1.7% ·
share flow +0.6% ·
net new positions +2.5%
— formula
Broad accumulation — rising shares across more 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 | 133 | +6 | 82.38M | $6.30B | +14 | −7 |
| Q1 2026 | 129 | +9 | 82.68M | $4.92B | +14 | −6 |
| Q4 2025 | 119 | +2 | 83.16M | $5.52B | +3 | — |
| Q3 2025 | 18 | 0 | 61.93M | $2.14B | +1 | −2 |
| Q2 2025 | 16 | +2 | 54.75M | $865.08M | +2 | — |
| Q1 2025 | 11 | +1 | 14.99M | $191.04M | +1 | — |
| Q4 2024 | 10 | -1 | 13.46M | $253.12M | +1 | −2 |
| Q3 2024 | 10 | +1 | 7.88M | $152.69M | +1 | — |
| Q2 2024 | 9 | — | 6.44M | $167.29M | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 21.32M | +5.4% | $1.42B | 0.0% | ▲ Add | 3 | SEC ↗ ×18 |
| 2 | The Vanguard Group ✦ (passive) | 15.29M | -4.6% | $1.02B | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 3 | Fidelity (FMR) ✦ | 6.52M | +13.2% | $432.89M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 4 | State Street Global Advisors ✦ (passive) | 6.40M | +0.1% | $425.15M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 3.26M | +4.3% | $216.80M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 6 | Arrowstreet Capital ✦ | 2.09M | +0.3% | $138.62M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 7 | Norges Bank ✦ (passive) | 1.70M | New | $113.16M | 0.0% | New | 1 | SEC ↗ |
| 8 | Goldman Sachs Group ✦ | 1.68M | -5.4% | $111.37M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 9 | Morgan Stanley ✦ | 1.48M | -13.3% | $97.99M | 0.0% | ▼ Trim | 2 | SEC ↗ ×10 |
| 10 | Charles Schwab Investment… | 1.35M | — | $89.87M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Northern Trust Corp | 1.35M | — | $89.38M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 12 | Fisher Asset Management ✦ | 1.31M | +24.5% | $87.09M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 13 | Janus Henderson Group Plc | 1.28M | — | $85.00M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 14 | UBS AM, a distinct business unit of… | 1.26M | — | $83.68M | 0.0% | n/c | 1 | SEC ↗ ×9 |
| 15 | Pictet Asset Management Holding SA | 1.03M | — | $68.64M | 0.1% | n/c | 1 | SEC ↗ |
| 16 | UBS Group AG | 987.29K | — | $65.55M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 17 | Bank of New York Mellon Corp | 887.85K | — | $58.94M | 0.0% | n/c | 1 | SEC ↗ ×10 |
| 18 | T. Rowe Price ✦ | 838.82K | +660.9% | $55.69M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 19 | Principal Financial Group Inc | 715.54K | — | $47.50M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 20 | Assenagon Asset Management S.A. | 684.89K | — | $45.47M | 0.1% | n/c | 1 | SEC ↗ |
| 21 | Connor, Clark & Lunn Investment… | 663.26K | — | $44.03M | 0.1% | n/c | 1 | SEC ↗ |
| 22 | Bank Of America Corp /De/ | 622.03K | — | $41.30M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 23 | JPMorgan Chase ✦ | 611.91K | -60.6% | $40.62M | 0.0% | ▼ Trim | 2 | SEC ↗ ×7 |
| 24 | Adage Capital Partners ✦ | 550.00K | New | $36.51M | 0.1% | New | 1 | SEC ↗ |
| 25 | Invesco Ltd. | 547.76K | — | $36.37M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 26 | Citadel Advisors ✦ | 474.26K | +49.3% | $31.49M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 27 | Voya Investment Management Llc | 422.73K | — | $28.07M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 28 | Legal & General Group Plc | 395.31K | — | $26.24M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 29 | Balyasny Asset Management L.P. | 376.22K | — | $24.98M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Alyeska Investment Group, L.P. | 375.37K | — | $24.92M | 0.1% | n/c | 1 | SEC ↗ |
| 31 | Rhumbline Advisers | 352.39K | — | $23.40M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Nordea Investment Management Ab | 324.25K | — | $21.57M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 33 | Barclays Plc | 321.83K | — | $21.37M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 34 | Nuveen, LLC | 288.58K | — | $19.16M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 35 | Aberdeen Group plc | 286.15K | — | $19.00M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Ameriprise Financial Inc | 257.48K | — | $17.09M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 37 | Swiss National Bank | 245.40K | — | $16.29M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Deutsche Bank Ag\ | 242.07K | — | $16.07M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 39 | First Trust Advisors Lp | 237.73K | — | $15.78M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Clearbridge Investments, LLC | 208.06K | — | $13.81M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Raymond James Financial Inc | 198.39K | — | $13.17M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 42 | Alliancebernstein L.P. | 172.67K | — | $11.46M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Universal- Beteiligungs- und… | 159.54K | — | $10.59M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Wells Fargo & Company/Mn | 152.51K | — | $10.12M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 45 | Prudential Financial Inc | 152.22K | — | $10.11M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 46 | Dimensional Fund Advisors Lp | 147.41K | — | $9.79M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | AQR Capital Management ✦ | 147.35K | +3.2% | $9.78M | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 48 | D. E. Shaw & Co. ✦ | 146.06K | +619.5% | $9.70M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 49 | Wcm Investment Management, Llc | 138.91K | — | $9.34M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 133.88K | — | $8.89M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 51 | HighTower Advisors, LLC | 133.23K | — | $8.85M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Marshall Wace ✦ | 123.86K | -91.4% | $8.22M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 53 | Russell Investments Group, Ltd. | 122.11K | — | $8.11M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 54 | California State Teachers… | 118.37K | — | $7.86M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Sei Investments Co | 112.28K | — | $7.45M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 56 | Franklin Resources Inc | 107.37K | — | $7.13M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 57 | Neuberger Berman Group LLC | 100.39K | — | $6.66M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 58 | LPL Financial LLC | 100.28K | — | $6.66M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Manufacturers Life Insurance… | 98.15K | — | $6.55M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Victory Capital Management Inc | 92.62K | — | $6.15M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | State Of Wisconsin Investment Board | 79.21K | — | $5.26M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Creative Planning | 74.42K | — | $4.94M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Bridgewater Associates ✦ | 59.97K | New | $3.98M | 0.0% | New | 1 | SEC ↗ |
| 64 | Gotham Asset Management ✦ | 56.27K | +76.6% | $3.74M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Td Asset Management Inc | 55.80K | — | $3.70M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Commonwealth Equity Services, Llc | 55.67K | — | $3.70M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Royal Bank Of Canada | 51.20K | — | $3.40M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 68 | Wellington Management ✦ | 47.47K | -4.0% | $3.15M | 0.0% | ▼ Trim | 7 | SEC ↗ ×4 |
| 69 | Millennium Management ✦ | 45.02K | -59.0% | $2.99M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 70 | Citigroup Inc | 42.74K | — | $2.84M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 71 | New York State Common Retirement… | 41.88K | — | $2.78M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Bnp Paribas Financial Markets | 40.40K | — | $2.68M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Nomura Asset Management… | 40.13K | — | $2.66M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Zurcher Kantonalbank (Zurich… | 39.37K | — | $2.61M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Corient Private Wealth LP | 36.45K | — | $2.42M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 76 | Us Bancorp \De\ | 34.54K | — | $2.29M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 77 | ProShare Advisors LLC | 31.86K | — | $2.11M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | State Board Of Administration Of… | 29.65K | — | $1.97M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Susquehanna International Group, Llp | 28.91K | — | $1.92M | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Canada Pension Plan Investment Board | 28.60K | — | $1.90M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Envestnet Asset Management Inc | 26.87K | — | $1.78M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Amundi | 26.39K | — | $1.75M | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Ensign Peak Advisors, Inc | 23.34K | — | $1.55M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Cerity Partners LLC | 21.14K | — | $1.40M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 85 | Focus Partners Wealth | 20.30K | — | $1.35M | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Wealth Enhancement Advisory… | 18.96K | — | $1.34M | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Allianz Asset Management GmbH | 18.90K | — | $1.25M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Captrust Financial Advisors | 17.64K | — | $1.17M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Bank Of Montreal /Can/ | 14.63K | — | $971,418 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 90 | Osaic Holdings, Inc. | 13.34K | — | $885,628 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 91 | Cwm, Llc | 12.35K | — | $820,000 | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Quantinno Capital Management LP | 12.01K | — | $797,543 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Stifel Financial Corp | 11.81K | — | $784,130 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 94 | Mackenzie Financial Corp | 11.45K | — | $768,162 | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Man Group plc | 11.55K | — | $766,937 | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Pnc Financial Services Group, Inc. | 11.10K | — | $737,062 | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 97 | American Century Companies Inc | 7.74K | — | $513,991 | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Allspring Global Investments… | 7.28K | — | $493,308 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 99 | Cetera Investment Advisers | 6.70K | — | $444,614 | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Mirae Asset Global Investments Co.… | 6.60K | — | $438,108 | 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
| Norges Bank | $113.16M | 0.0% |
| Adage Capital Partners | $36.51M | 0.1% |
| Bridgewater Associates | $3.98M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 430 holders, 120.06M shares, $7.40B 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.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 18
OLUKOTUN ADEOYE Y
Director · 2.00K sh · $173,920
Aug 18
PERRY MICHAEL S
Director · 11.60K sh · $1.01M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G/A — Avoro Capital Advisors LLC
Jul 31
SC 13G/A — VANGUARD PORTFOLIO MANAGEMENT LLC
Jul 27
SC 13G/A — BlackRock, Inc.
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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