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, Q1 2026
Institutional positions in Arrowhead Pharmaceuticals, Inc. as of Mar 31, 2026. 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
- 437
- +45 vs. Q4 2025
- Shares held
- 120.8M
- +21.9M (+22.2%) vs. Q4 2025
- Total value
- $7.58B
- +$1.01B (+15.4%) vs. Q4 2025
- New holders
- 106
- 171 more added
- Sold out
- 61
- 112 more reduced
9 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Arrowhead Pharmaceuticals, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| King Luther Capital Management Corp | 53,725 | $3.37M | 0.01% | −6,750−11.2% | Reduced |
| Wellington Management Group LLP | 54,518 | $3.42M | 0.00% | +7,045+14.8% | Added |
| Commonwealth Equity Services, LLC | 55,076 | $3.45M | 0.00% | −597−1.1% | Reduced |
| Winton Group Ltd | 55,080 | $3.45M | 0.12% | +47,189+598.0% | Added |
| Ishara Investments LP | 55,350 | $3.47M | 3.50% | +55,350 | New |
| Allspring Global Investments Holdings, LLC | 55,179 | $3.47M | 0.01% | +47,902+658.3% | Added |
| Quadrature Capital Ltd | 55,546 | $3.48M | 0.04% | +55,546 | New |
| Allianz Asset Management GmbH | 55,622 | $3.49M | 0.00% | +36,722+194.3% | Added |
| Assenagon Asset Management S.A. | 58,735 | $3.68M | 0.01% | −626,154−91.4% | Reduced |
| Ensign Peak Advisors, Inc | 59,121 | $3.71M | 0.01% | +35,785+153.3% | Added |
| Algert Global LLC | 60,020 | $3.76M | 0.06% | +1,300+2.2% | Added |
| Amalgamated Bank | 60,307 | $3.78M | 0.03% | +20,299+50.7% | Added |
| Royal Bank of Canada | 61,316 | $3.84M | 0.00% | +10,120+19.8% | Added |
| Orion Investment Co | 62,535 | $3.92M | 1.25% | +16,165+34.9% | Added |
| Vanguard Global Advisers, LLC | 63,124 | $3.96M | 0.00% | +63,124 | New |
| Hudson Bay Capital Management LP | 64,143 | $4.02M | 0.02% | +64,143 | New |
| PFM Health Sciences, LP | 64,279 | $4.03M | 0.42% | +64,279 | New |
| Platinum Investment Management Ltd | 64,752 | $4.06M | 1.02% | −24,732−27.6% | Reduced |
| Envestnet Asset Management Inc | 66,750 | $4.19M | 0.00% | +39,876+148.4% | Added |
| Erste Asset Management GmbH | 73,000 | $4.21M | 0.04% | 00.0% | Unchanged |
| Voleon Capital Management LP | 69,190 | $4.34M | 0.09% | +26,667+62.7% | Added |
| PDT Partners, LLC | 70,048 | $4.39M | 0.26% | 00.0% | Unchanged |
| Prudential Financial Inc | 70,140 | $4.40M | 0.01% | −82,085−53.9% | Reduced |
| ADAR1 Capital Management, LLC | 70,300 | $4.41M | 0.26% | +12,100+20.8% | Added |
| KC Investment Advisors, LLC | 75,000 | $4.70M | 1.10% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 77,847 | $4.88M | 0.01% | −1,367−1.7% | Reduced |
| Bessemer Group Inc | 79,140 | $4.96M | 0.01% | +27,345+52.8% | Added |
| Rafferty Asset Management, LLC | 79,605 | $4.99M | 0.02% | −4,864−5.8% | Reduced |
| Aquatic Capital Management LLC | 80,227 | $5.03M | 0.14% | −731−0.9% | Reduced |
| Great West Life Assurance Co | 80,807 | $5.07M | 0.01% | −37,943−32.0% | Reduced |
| ACT Capital Management, LLC | 82,500 | $5.17M | 4.07% | +7,500+10.0% | Added |
| Creative Planning | 88,256 | $5.53M | 0.00% | +13,835+18.6% | Added |
| Victory Capital Management Inc | 89,286 | $5.60M | 0.00% | −3,337−3.6% | Reduced |
| Guggenheim Capital LLC | 91,463 | $5.73M | 0.05% | +34,819+61.5% | Added |
| Edgestream Partners, L.P. | 91,997 | $5.77M | 0.19% | +55,516+152.2% | Added |
| Bridgewater Associates, LP | 95,552 | $5.99M | 0.03% | +35,586+59.3% | Added |
| Citadel Advisors LLC | 98,194 | $6.16M | 0.00% | −376,065−79.3% | Reduced |
| Cormorant Asset Management, LP | 100,000 | $6.27M | 0.32% | +100,000 | New |
| Silvercrest Asset Management Group LLC | 108,413 | $6.80M | 0.05% | −50,209−31.7% | Reduced |
| Vanguard Asset Management, Ltd | 112,971 | $7.08M | 0.01% | +112,971 | New |
| Barclays PLC | 115,343 | $7.23M | 0.00% | −206,490−64.2% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 120,238 | $7.54M | 0.01% | −39,300−24.6% | Reduced |
| New York State Teachers Retirement System | 124,853 | $7.83M | 0.02% | −24,923−16.6% | Reduced |
| Polygon Management Ltd. | 127,198 | $7.98M | 1.57% | +30,263+31.2% | Added |
| LPL Financial LLC | 129,499 | $8.12M | 0.00% | +29,222+29.1% | Added |
| Bank of Nova Scotia | 135,960 | $8.52M | 0.01% | +135,960 | New |
| Empowered Funds, LLC | 137,220 | $8.60M | 0.05% | +119,202+661.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 139,598 | $8.73M | 0.01% | +5,723+4.3% | Added |
| MetLife Investment Management | 140,404 | $8.80M | 0.04% | +67,364+92.2% | Added |
| Wealth Effects LLC | 143,300 | $8.98M | 3.18% | 00.0% | Unchanged |
| California State Teachers Retirement System | 144,313 | $9.05M | 0.01% | +25,941+21.9% | Added |
| Rhenman & Partners Asset Management AB | 144,500 | $9.06M | 1.12% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 146,462 | $9.18M | 0.01% | +13,233+9.9% | Added |
| Schroder Investment Management Group | 162,005 | $9.34M | 0.01% | +162,005 | New |
| First Trust Advisors LP | 149,148 | $9.35M | 0.01% | −88,582−37.3% | Reduced |
| Toronto Dominion Bank | 150,278 | $9.42M | 0.02% | +150,278 | New |
| HSBC Holdings PLC | 151,046 | $9.45M | 0.01% | +151,046 | New |
| WCM Investment Management, LLC | 171,575 | $9.89M | 0.02% | +32,670+23.5% | Added |
| SEB Asset Management AB | 158,205 | $9.92M | 0.04% | +158,205 | New |
| Wells Fargo & Company | 158,398 | $9.93M | 0.00% | +5,891+3.9% | Added |
| Manufacturers Life Insurance Company, The | 160,422 | $10.1M | 0.01% | +62,271+63.4% | Added |
| AQR Capital Management LLC | 167,210 | $10.3M | 0.00% | +19,857+13.5% | Added |
| Retirement Systems of Alabama | 171,672 | $10.8M | 0.04% | +171,672 | New |
| Russell Investments Group, Ltd. | 173,995 | $10.9M | 0.01% | +51,880+42.5% | Added |
| Pinnacle Associates Ltd | 175,456 | $11.0M | 0.14% | −16,213−8.5% | Reduced |
| Marshall Wace, LLP | 179,573 | $11.3M | 0.01% | +55,718+45.0% | Added |
| Raymond James Financial Inc | 182,555 | $11.4M | 0.00% | −15,832−8.0% | Reduced |
| Mutual of America Capital Management LLC | 184,304 | $11.6M | 0.13% | +168,502+1,066.3% | Added |
| Ameriprise Financial Inc | 191,054 | $12.0M | 0.00% | −66,423−25.8% | Reduced |
| Longaeva Partners L.P. | 194,589 | $12.2M | 0.59% | +194,589 | New |
| Affinity Asset Advisors, LLC | 200,000 | $12.5M | 0.74% | +130,000+185.7% | Added |
| Woodline Partners LP | 200,184 | $12.6M | 0.05% | −200,000−50.0% | Reduced |
| Clearbridge Investments, LLC | 202,347 | $12.7M | 0.01% | −5,715−2.7% | Reduced |
| SEI Investments Co | 203,220 | $12.7M | 0.01% | +90,941+81.0% | Added |
| Neuberger Berman Group LLC | 203,914 | $12.8M | 0.01% | +103,529+103.1% | Added |
| Balyasny Asset Management LLC | 206,412 | $12.9M | 0.03% | −169,804−45.1% | Reduced |
| Legal & General Group Plc | 229,097 | $14.4M | 0.00% | −166,214−42.0% | Reduced |
| Swiss National Bank | 242,000 | $15.2M | 0.01% | −3,400−1.4% | Reduced |
| Citigroup Inc | 251,568 | $15.8M | 0.01% | +208,825+488.6% | Added |
| California Public Employees Retirement System | 257,133 | $16.1M | 0.01% | +257,133 | New |
| Deutsche Bank AG | 259,963 | $16.3M | 0.01% | +17,889+7.4% | Added |
| Trexquant Investment LP | 277,114 | $17.4M | 0.13% | +26,170+10.4% | Added |
| Nordea Investment Management AB | 306,439 | $18.6M | 0.02% | −17,812−5.5% | Reduced |
| Alliancebernstein L.P. | 280,394 | $18.6M | 0.01% | +107,728+62.4% | Added |
| Integral Health Asset Management, LLC | 300,000 | $18.8M | 1.00% | +200,000+200.0% | Added |
| Lord, Abbett & Co. LLC | 312,824 | $19.6M | 0.06% | +312,824 | New |
| Canada Pension Plan Investment Board | 325,700 | $20.4M | 0.01% | +297,100+1,038.8% | Added |
| Standard Life Aberdeen plc | 363,972 | $22.8M | 0.04% | +77,826+27.2% | Added |
| Privium Fund Management B.V. | 366,936 | $23.0M | 4.79% | −31,268−7.9% | Reduced |
| Eventide Asset Management, LLC | 370,000 | $23.2M | 0.38% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 378,833 | $23.8M | 0.03% | +349,922+1,210.3% | Added |
| Rhumbline Advisers | 404,436 | $25.4M | 0.02% | +52,041+14.8% | Added |
| Panagora Asset Management Inc | 461,193 | $28.9M | 0.11% | +425,238+1,182.7% | Added |
| Franklin Resources Inc | 462,707 | $29.0M | 0.01% | +355,341+331.0% | Added |
| Alyeska Investment Group, L.P. | 472,870 | $29.6M | 0.08% | +97,499+26.0% | Added |
| Principal Financial Group Inc | 490,122 | $30.7M | 0.02% | −225,417−31.5% | Reduced |
| Nuveen, LLC | 499,837 | $31.3M | 0.01% | +211,259+73.2% | Added |
| Summit Partners Public Asset Management, LLC | 540,144 | $33.9M | 1.57% | +70,144+14.9% | Added |
| RTW Investments, LP | 585,682 | $36.7M | 0.37% | +966+0.2% | Added |
| Arrowstreet Capital, Limited Partnership | 587,125 | $36.8M | 0.02% | −1,500,828−71.9% | Reduced |