Arrowhead PharmaceuticalsARWR
13F holders, Q3 2025 (September 30)303holders +22
65new positions
40sold out
6famous investors
$34.49avg. 13F price*
At the end of Q3 2025, 303 institutions reported holding Arrowhead Pharmaceuticals Inc. (ARWR) in their 13F filings, up 22 from Q2 2025. 65 opened new positions and 40 sold out. The largest holders were BlackRock, Inc. ($697.6M), Vanguard Group Inc. ($553.1M) and Avoro Capital Advisors LLC ($375.9M). 6 famous investors held it, including Ken Fisher (0.0% of Fisher Asset Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Joel Greenblatt (0.0% of Gotham Asset Management's portfolio).
- Company
- Arrowhead Pharmaceuticals Inc.
- CUSIP
- 04280A100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 65 | $218.6M |
| Exits | 40 | $38.8M |
All 13F filers, Q2 2025 → Q3 2025: 15,795,547 shares bought and 8,632,913 shares sold, net +7,162,634 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 303 holders
| BlackRock, Inc. | 0.01% | Add +4.1% | 20,224,825 | $697.6M |
| Vanguard Group Inc. | 0.01% | Add +3.3% | 16,035,870 | $553.1M |
| Avoro Capital Advisors LLC | 4.86% | Add +2.8% | 10,900,000 | $375.9M |
| State Street Corp. | 0.01% | Add +0.4% | 6,397,364 | $220.6M |
| FMR LLC | 0.01% | Add +11.4% | 5,759,830 | $198.7M |
| Slate Path Capital LP | 2.66% | Reduce -4.8% | 4,982,000 | $171.8M |
| Geode Capital Management, LLC | 0.01% | Add +5.1% | 3,131,042 | $108.0M |
| Siren, L.L.C. | 3.60% | No change | 2,669,880 | $92.1M |
| Driehaus Capital Management LLC | 0.52% | New | 2,099,398 | $72.4M |
| Arrowstreet Capital, Limited Partnership | 0.05% | Add +3142.5% | 2,081,689 | $71.8M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -16.1% | 1,773,878 | $61.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Reduce -34.5% | 1,759,489 | $60.7M |
| Morgan Stanley | 0.00% | Reduce -0.1% | 1,702,674 | $58.7M |
| Baker Bros. Advisors LP | 0.42% | Add +77.9% | 1,670,762 | $57.6M |
| Marshall Wace, LLP | 0.05% | Reduce -33.4% | 1,436,840 | $49.6M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +15.0% | 1,345,860 | $46.4M |
| Northern Trust Corp. | 0.01% | Add +3.1% | 1,311,590 | $45.2M |
| Fisher Asset Management | 0.01% | Add +133.3% | 1,053,794 | $36.3M |
| Woodline Partners LP | 0.16% | Add +34.0% | 1,000,158 | $34.5M |
| Deerfield Management Company, L.P. | 0.57% | New | 993,000 | $34.2M |
| Janus Henderson Group PLC | 0.02% | Add +1853.2% | 973,567 | $33.5M |
| UBS Group AG | 0.01% | Reduce -42.6% | 918,183 | $31.7M |
| Western Financial Corp | 12.31% | No change | 820,239 | $28.3M |
| Bank of New York Mellon Corp | 0.01% | Reduce -0.4% | 814,548 | $28.1M |
| Balyasny Asset Management L.P. | 0.06% | New | 792,966 | $27.3M |
| Principal Financial Group Inc. | 0.01% | Add +25.2% | 780,132 | $26.9M |
| JPMorgan Chase & Co. | 0.00% | Add +90.3% | 775,717 | $26.8M |
| Bank of America Corp. | 0.00% | Add +21.8% | 760,687 | $26.2M |
| Schonfeld Strategic Advisors LLC | 0.13% | Add +12.8% | 543,916 | $18.8M |
| Public Sector Pension Investment Board | 0.07% | Add +25.9% | 539,336 | $18.6M |
| Aberdeen Group plc | 0.03% | Reduce -45.8% | 520,644 | $18.0M |
| Invesco Ltd. | 0.00% | Reduce -34.1% | 502,892 | $17.3M |
| Dimensional Fund Advisors LP | 0.00% | Add +29.4% | 474,462 | $16.4M |
| Privium Fund Management B.V. | 2.94% | Reduce -22.6% | 473,951 | $16.3M |
| Voloridge Investment Management, LLC | 0.05% | New | 402,659 | $13.9M |
| Clearbridge Investments, LLC | 0.01% | Add +2.7% | 391,155 | $13.5M |
| Legal & General Group Plc | 0.00% | Reduce -5.2% | 386,374 | $13.3M |
| Assenagon Asset Management S.A. | 0.02% | Add +1388.6% | 380,625 | $13.1M |
| Rhumbline Advisers | 0.01% | Add +3.1% | 371,112 | $12.8M |
| Nordea Investment Management AB | 0.01% | Add +74.5% | 372,282 | $12.7M |
| Barclays PLC | 0.00% | Reduce -14.5% | 350,239 | $12.1M |
| Citadel Advisors | 0.01% | Add +410.3% | 317,614 | $11.0M |
| Fred Alger Management, LLC | 0.04% | New | 306,833 | $10.6M |
| Pictet Asset Management Holding SA | 0.01% | Add +4.9% | 291,023 | $9.8M |
| Nuveen, LLC | 0.00% | Reduce -10.3% | 278,336 | $9.6M |
| Ameriprise Financial Inc. | 0.00% | Add +2.7% | 274,163 | $9.5M |
| Silvercrest Asset Management Group LLC | 0.06% | Reduce -2.6% | 272,974 | $9.4M |
| Johnson & Johnson | 1.69% | No change | 247,598 | $8.5M |
| Deutsche Bank AG | 0.00% | Add +4.5% | 246,072 | $8.5M |
| Raymond James Financial Inc. | 0.00% | Add +33.9% | 227,269 | $7.8M |
| Integral Health Asset Management, LLC | 0.57% | New | 225,000 | $7.8M |
| Swiss National Bank | 0.00% | Add +2.0% | 214,100 | $7.4M |
| First Trust Advisors LP | 0.01% | New | 207,955 | $7.2M |
| Pinnacle Associates Ltd. | 0.09% | Reduce -3.9% | 203,314 | $7.0M |
| Wealth Effects LLC | 1.87% | Add +1.7% | 168,450 | $5.8M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | New | 160,985 | $5.6M |
| Alliancebernstein L.P. | 0.00% | Reduce -2.0% | 155,894 | $5.4M |
| ExodusPoint Capital Management, LP | 0.07% | New | 152,327 | $5.3M |
| New York State Teachers Retirement System | 0.01% | No change | 148,476 | $5.1M |
| AQR Capital Management | 0.00% | Reduce -6.3% | 142,825 | $4.9M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.01% | Reduce -8.8% | 138,020 | $4.8M |
| Voya Investment Management LLC | 0.01% | Add +158.2% | 137,516 | $4.7M |
| Prudential Financial Inc. | 0.01% | Add +4.9% | 136,645 | $4.7M |
| HighTower Advisors, LLC | 0.01% | Add +7.2% | 132,889 | $4.6M |
| CANADA LIFE ASSURANCE Co | 0.01% | Add +11.7% | 129,958 | $4.4M |
| Longaeva Partners L.P. | 0.94% | New | 125,673 | $4.3M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | New | 124,529 | $4.3M |
| Franklin Resources Inc. | 0.00% | Add +43.4% | 116,504 | $4.0M |
| Rafferty Asset Management, LLC | 0.01% | Reduce -19.4% | 114,379 | $3.9M |
| Platinum Investment Management Ltd. | 0.25% | No change | 111,022 | $3.8M |
| T. Rowe Price Associates Inc. | 0.00% | Add +9.6% | 110,245 | $3.8M |
| Millennium Management | 0.00% | Reduce -35.0% | 109,807 | $3.8M |
| Exome Asset Management LLC | 2.38% | New | 104,507 | $3.6M |
| California State Teachers Retirement System | 0.00% | Add +0.0% | 103,982 | $3.6M |
| Thrivent Financial for Lutherans | 0.01% | Add +7.9% | 99,744 | $3.4M |
| PDT Partners, LLC | 0.20% | Reduce -40.6% | 90,819 | $3.1M |
| Hudson Bay Capital Management LP | 0.02% | Reduce -65.4% | 90,000 | $3.1M |
| Boothbay Fund Management, LLC | 0.08% | Add +34.6% | 83,388 | $2.9M |
| Pinion Investment Advisors, LLC | 0.78% | No change | 75,000 | $2.9M |
| Tetragon Partners GP Ltd | 0.68% | New | 81,841 | $2.8M |
| Algert Global LLC | 0.05% | Reduce -20.7% | 81,310 | $2.8M |
| King Luther Capital Management Corp. | 0.01% | Add +54.7% | 80,640 | $2.8M |
| Wells Fargo & Company | 0.00% | Add +17.4% | 80,235 | $2.8M |
| Macquarie Group Ltd. | 0.00% | New | 72,440 | $2.5M |
| MetLife Investment Management, LLC | 0.01% | No change | 71,963 | $2.5M |
| Erste Asset Management GmbH | 0.02% | Add +55.3% | 73,000 | $2.5M |
| State of Alaska, Department of Revenue | 0.02% | Reduce -7.0% | 69,568 | $2.4M |
| M28 Capital Management LP | 3.42% | No change | 67,400 | $2.3M |
| Commonwealth Equity Services, LLC | 0.00% | Add +13.2% | 65,999 | $2.3M |
| Alps Advisors Inc. | 0.01% | Reduce -12.5% | 65,204 | $2.2M |
| State of Wisconsin Investment Board | 0.01% | Add +0.2% | 64,875 | $2.2M |
| Louisiana State Employees Retirement System | 0.04% | Add +8.3% | 63,600 | $2.2M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -1.6% | 63,000 | $2.2M |
| Natixis Advisors, LLC | 0.00% | New | 55,644 | $1.9M |
| State of Tennessee, Department of Treasury | 0.01% | No change | 54,550 | $1.9M |
| Jain Global LLC | 0.03% | New | 53,957 | $1.9M |
| Creative Planning | 0.00% | Add +13.9% | 52,006 | $1.8M |
| Citigroup Inc. | 0.00% | Reduce -63.4% | 51,582 | $1.8M |
| BNP Paribas Financial Markets | 0.00% | Add +50.7% | 50,964 | $1.8M |
| LPL Financial LLC | 0.00% | Add +16.2% | 50,164 | $1.7M |
"% of holder's portfolio" is ARWR's weight in each manager's 13F, not the share of Arrowhead Pharmaceuticals Inc. the manager owns.