Arrowhead Pharmaceuticals, Inc.
ARWR- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0000879407
In the last 90 days, Arrowhead Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 2 sales; 501 institutions reported holding it in 13F filings for Q2 2026, worth $9.73B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Arrowhead Pharmaceuticals, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 401
- +100 vs. Q3 2025
- Shares held
- 116.0M
- +5.08M (+4.6%) vs. Q3 2025
- Total value
- $7.70B
- +$3.88B (+101.3%) vs. Q3 2025
- New holders
- 127
- 125 more added
- Sold out
- 27
- 110 more reduced
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ARWR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 501 | $9.73B |
| Q1 2026 | 437 | $7.58B |
| Q4 2025 | 401 | $7.70B |
| Q3 2025 | 303 | $3.83B |
| Q2 2025 | 281 | $1.67B |
| Q1 2025 | 264 | $1.34B |
| Q4 2024 | 269 | $1.88B |
| Q3 2024 | 272 | $1.90B |
| Q2 2024 | 272 | $2.54B |
| Q1 2024 | 273 | $2.76B |
| Q4 2023 | 266 | $2.37B |
| Q3 2023 | 257 | $2.01B |
| Q2 2023 | 274 | $2.57B |
| Q1 2023 | 257 | $1.85B |
| Q4 2022 | 282 | $2.97B |
| Q3 2022 | 278 | $2.35B |
| Q2 2022 | 279 | $2.54B |
| Q1 2022 | 307 | $3.19B |
| Q4 2021 | 311 | $4.51B |
| Q3 2021 | 297 | $4.16B |
| Q2 2021 | 314 | $5.54B |
| Q1 2021 | 289 | $4.55B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Arrowhead Pharmaceuticals, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 21,318,582 | $1.42B | 0.02% | +1,093,757+5.4% | Added |
| Vanguard Group Inc | 15,293,121 | $1.02B | 0.01% | −742,749−4.6% | Reduced |
| Avoro Capital Advisors LLC | 10,625,000 | $705.4M | 6.93% | −275,000−2.5% | Reduced |
| FMR LLC | 6,520,408 | $432.9M | 0.02% | +760,578+13.2% | Added |
| State Street Corp | 6,403,830 | $425.2M | 0.01% | +6,466+0.1% | Added |
| Geode Capital Management, LLC | 3,264,963 | $216.8M | 0.01% | +133,921+4.3% | Added |
| Slate Path Capital LP | 2,523,500 | $167.5M | 2.26% | −2,458,500−49.3% | Reduced |
| Baker Bros. Advisors LP | 2,175,645 | $144.4M | 0.85% | +504,883+30.2% | Added |
| Arrowstreet Capital, Limited Partnership | 2,087,953 | $138.6M | 0.08% | +6,264+0.3% | Added |
| Fred Alger Management, LLC | 1,832,997 | $121.7M | 0.48% | +1,526,164+497.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,832,946 | $121.7M | 1.56% | +839,946+84.6% | Added |
| Driehaus Capital Management LLC | 1,769,340 | $117.5M | 0.80% | −330,058−15.7% | Reduced |
| Norges Bank | 1,704,464 | $113.2M | 0.01% | +1,704,464 | New |
| Goldman Sachs Group Inc | 1,677,522 | $111.4M | 0.02% | −96,356−5.4% | Reduced |
| Siren, L.L.C. | 1,500,476 | $99.6M | 2.97% | −1,169,404−43.8% | Reduced |
| Morgan Stanley | 1,476,005 | $98.0M | 0.01% | −226,669−13.3% | Reduced |
| Charles Schwab Investment Management Inc | 1,353,719 | $89.9M | 0.01% | +7,859+0.6% | Added |
| Northern Trust Corp | 1,346,257 | $89.4M | 0.01% | +34,667+2.6% | Added |
| Fisher Asset Management, LLC | 1,311,727 | $87.1M | 0.03% | +257,933+24.5% | Added |
| Janus Henderson Group PLC | 1,280,446 | $85.0M | 0.04% | +306,879+31.5% | Added |
| UBS Asset Management Americas Inc | 1,260,380 | $83.7M | 0.02% | −499,109−28.4% | Reduced |
| Pictet Asset Management Holding SA | 1,028,736 | $68.6M | 0.07% | +737,713+253.5% | Added |
| UBS Group AG | 987,287 | $65.5M | 0.01% | +69,104+7.5% | Added |
| Vestal Point Capital, LP | 900,000 | $59.8M | 2.19% | +900,000 | New |
| Bank of New York Mellon Corp | 887,848 | $58.9M | 0.01% | +73,300+9.0% | Added |
| Price T Rowe Associates Inc | 838,818 | $55.7M | 0.01% | +728,573+660.9% | Added |
| Western Financial Corp | 820,239 | $54.5M | 21.60% | 00.0% | Unchanged |
| Principal Financial Group Inc | 715,539 | $47.5M | 0.02% | −64,593−8.3% | Reduced |
| Assenagon Asset Management S.A. | 684,889 | $45.5M | 0.07% | +304,264+79.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 663,262 | $44.0M | 0.12% | +538,733+432.6% | Added |
| Bank of America Corp | 622,029 | $41.3M | 0.00% | −138,658−18.2% | Reduced |
| JPMorgan Chase & Co | 611,910 | $40.6M | 0.00% | −163,807−21.1% | Reduced |
| RTW Investments, LP | 584,716 | $38.8M | 0.39% | +584,716 | New |
| Adage Capital Partners GP, L.L.C. | 550,000 | $36.5M | 0.06% | +550,000 | New |
| Invesco Ltd. | 547,758 | $36.4M | 0.00% | +44,866+8.9% | Added |
| Public Sector Pension Investment Board | 478,514 | $31.8M | 0.11% | −60,822−11.3% | Reduced |
| Citadel Advisors LLC | 474,259 | $31.5M | 0.02% | +156,645+49.3% | Added |
| Summit Partners Public Asset Management, LLC | 470,000 | $31.2M | 0.88% | +470,000 | New |
| Voya Investment Management LLC | 422,731 | $28.1M | 0.03% | +285,215+207.4% | Added |
| Woodline Partners LP | 400,184 | $26.6M | 0.10% | −599,974−60.0% | Reduced |
| Privium Fund Management B.V. | 398,204 | $26.4M | 4.87% | −75,747−16.0% | Reduced |
| Legal & General Group Plc | 395,311 | $26.2M | 0.01% | +8,937+2.3% | Added |
| Balyasny Asset Management LLC | 376,216 | $25.0M | 0.05% | −416,750−52.6% | Reduced |
| Alyeska Investment Group, L.P. | 375,371 | $24.9M | 0.07% | +375,371 | New |
| Eventide Asset Management, LLC | 370,000 | $24.6M | 0.38% | +370,000 | New |
| Rhumbline Advisers | 352,395 | $23.4M | 0.02% | −18,717−5.0% | Reduced |
| Nordea Investment Management AB | 324,251 | $21.6M | 0.02% | −48,031−12.9% | Reduced |
| Barclays PLC | 321,833 | $21.4M | 0.01% | −28,406−8.1% | Reduced |
| Nuveen, LLC | 288,578 | $19.2M | 0.01% | +10,242+3.7% | Added |
| Voloridge Investment Management, LLC | 288,511 | $19.2M | 0.07% | −114,148−28.3% | Reduced |
| Standard Life Aberdeen plc | 286,146 | $19.0M | 0.03% | −234,498−45.0% | Reduced |
| FengHe Fund Management Pte. Ltd. | 266,700 | $17.7M | 1.00% | +266,700 | New |
| Ameriprise Financial Inc | 257,477 | $17.1M | 0.00% | −16,686−6.1% | Reduced |
| Trexquant Investment LP | 250,944 | $16.7M | 0.15% | +250,944 | New |
| Swiss National Bank | 245,400 | $16.3M | 0.01% | +31,300+14.6% | Added |
| Deutsche Bank AG | 242,074 | $16.1M | 0.01% | −3,998−1.6% | Reduced |
| First Trust Advisors LP | 237,730 | $15.8M | 0.01% | +29,775+14.3% | Added |
| Clearbridge Investments, LLC | 208,062 | $13.8M | 0.01% | −183,093−46.8% | Reduced |
| Raymond James Financial Inc | 198,387 | $13.2M | 0.00% | −28,882−12.7% | Reduced |
| Hillsdale Investment Management Inc. | 193,850 | $12.9M | 0.36% | +193,850 | New |
| Pinnacle Associates Ltd | 191,669 | $12.7M | 0.16% | −11,645−5.7% | Reduced |
| Alliancebernstein L.P. | 172,666 | $11.5M | 0.00% | +16,772+10.8% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 159,538 | $10.6M | 0.02% | −1,447−0.9% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 159,532 | $10.6M | 0.04% | +159,532 | New |
| Silvercrest Asset Management Group LLC | 158,622 | $10.5M | 0.07% | −114,352−41.9% | Reduced |
| Wells Fargo & Company | 152,507 | $10.1M | 0.00% | +72,272+90.1% | Added |
| Prudential Financial Inc | 152,225 | $10.1M | 0.01% | +15,580+11.4% | Added |
| New York State Teachers Retirement System | 149,776 | $9.94M | 0.02% | +1,300+0.9% | Added |
| Dimensional Fund Advisors LP | 147,412 | $9.79M | 0.00% | −327,050−68.9% | Reduced |
| AQR Capital Management LLC | 147,353 | $9.78M | 0.01% | +4,528+3.2% | Added |
| D. E. Shaw & Co., Inc. | 146,064 | $9.70M | 0.01% | +125,763+619.5% | Added |
| Rhenman & Partners Asset Management AB | 144,500 | $9.59M | 0.90% | +144,500 | New |
| Wealth Effects LLC | 143,300 | $9.51M | 2.98% | −25,150−14.9% | Reduced |
| WCM Investment Management, LLC | 138,905 | $9.34M | 0.02% | +138,905 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 133,875 | $8.89M | 0.01% | −4,145−3.0% | Reduced |
| HighTower Advisors, LLC | 133,229 | $8.85M | 0.01% | +340+0.3% | Added |
| Marshall Wace, LLP | 123,855 | $8.22M | 0.01% | −1,312,985−91.4% | Reduced |
| Russell Investments Group, Ltd. | 122,115 | $8.11M | 0.01% | +109,231+847.8% | Added |
| Great West Life Assurance Co | 118,750 | $7.88M | 0.01% | −11,208−8.6% | Reduced |
| California State Teachers Retirement System | 118,372 | $7.86M | 0.01% | +14,390+13.8% | Added |
| SEI Investments Co | 112,279 | $7.45M | 0.01% | +98,663+724.6% | Added |
| Weiss Asset Management LP | 111,375 | $7.39M | 0.10% | +111,375 | New |
| Franklin Resources Inc | 107,366 | $7.13M | 0.00% | −9,138−7.8% | Reduced |
| Neuberger Berman Group LLC | 100,385 | $6.66M | 0.00% | +87,000+650.0% | Added |
| LPL Financial LLC | 100,277 | $6.66M | 0.00% | +50,113+99.9% | Added |
| Integral Health Asset Management, LLC | 100,000 | $6.64M | 0.34% | −125,000−55.6% | Reduced |
| Manufacturers Life Insurance Company, The | 98,151 | $6.55M | 0.01% | +35,151+55.8% | Added |
| Polygon Management Ltd. | 96,935 | $6.44M | 1.36% | +15,094+18.4% | Added |
| Thrivent Financial for Lutherans | 95,001 | $6.31M | 0.01% | −4,743−4.8% | Reduced |
| Victory Capital Management Inc | 92,623 | $6.15M | 0.00% | +47,454+105.1% | Added |
| Platinum Investment Management Ltd | 89,484 | $5.94M | 1.37% | −21,538−19.4% | Reduced |
| Rafferty Asset Management, LLC | 84,469 | $5.61M | 0.02% | −29,910−26.1% | Reduced |
| Aquatic Capital Management LLC | 80,958 | $5.37M | 0.15% | +55,287+215.4% | Added |
| State of Wisconsin Investment Board | 79,214 | $5.26M | 0.01% | +14,339+22.1% | Added |
| Erste Asset Management GmbH | 73,000 | $5.08M | 0.04% | 00.0% | Unchanged |
| KC Investment Advisors, LLC | 75,000 | $4.98M | 1.21% | 00.0% | Unchanged |
| ACT Capital Management, LLC | 75,000 | $4.98M | 4.03% | +75,000 | New |
| Creative Planning | 74,421 | $4.94M | 0.00% | +22,415+43.1% | Added |
| MetLife Investment Management | 73,040 | $4.85M | 0.02% | +1,077+1.5% | Added |
| State of Alaska, Department of Revenue | 70,399 | $4.67M | 0.05% | +831+1.2% | Added |