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, Q2 2026
Institutional positions in Arrowhead Pharmaceuticals, Inc. as of Jun 30, 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
- 501
- +69 vs. Q1 2026
- Shares held
- 119.3M
- −33.6K (0.0%) vs. Q1 2026
- Total value
- $9.73B
- +$2.25B (+30.0%) vs. Q1 2026
- New holders
- 127
- 153 more added
- Sold out
- 58
- 158 more reduced
5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Arrowhead Pharmaceuticals, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 14,830,553 | $1.21B | 0.02% | −3,330,966−18.3% | Reduced |
| Avoro Capital Advisors LLC | 11,355,555 | $925.6M | 8.31% | +655,556+6.1% | Added |
| FMR LLC | 8,039,804 | $655.3M | 0.03% | +773,152+10.6% | Added |
| Vanguard Portfolio Management LLC | 6,351,355 | $517.7M | 0.02% | −794,781−11.1% | Reduced |
| Vanguard Capital Management LLC | 6,110,953 | $498.1M | 0.01% | +78,537+1.3% | Added |
| State Street Corp | 5,694,640 | $464.2M | 0.01% | −801,490−12.3% | Reduced |
| Norges Bank | 3,896,536 | $317.6M | 0.03% | +3,896,536 | New |
| Invesco Ltd. | 3,883,976 | $316.6M | 0.03% | +603,329+18.4% | Added |
| Geode Capital Management, LLC | 3,530,612 | $298.8M | 0.02% | −748,216−17.5% | Reduced |
| Fred Alger Management, LLC | 3,301,919 | $269.1M | 0.90% | −40,574−1.2% | Reduced |
| Baker Bros. Advisors LP | 1,992,783 | $162.4M | 0.81% | 00.0% | Unchanged |
| Siren, L.L.C. | 1,715,476 | $139.8M | 2.84% | +100,000+6.2% | Added |
| Vestal Point Capital, LP | 1,575,000 | $128.4M | 3.00% | −700,000−30.8% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 1,389,055 | $113.2M | 1.18% | −184,242−11.7% | Reduced |
| First Trust Advisors LP | 1,352,918 | $110.3M | 0.06% | +1,203,770+807.1% | Added |
| Driehaus Capital Management LLC | 1,350,556 | $110.1M | 0.64% | +160,221+13.5% | Added |
| Jupiter Topco LLC | 1,221,596 | $99.6M | 0.04% | +1,221,596 | New |
| Northern Trust Corp | 1,192,868 | $97.2M | 0.01% | −462,969−28.0% | Reduced |
| Dimensional Fund Advisors LP | 1,181,608 | $96.3M | 0.02% | +573,077+94.2% | Added |
| Goldman Sachs Group Inc | 1,150,007 | $93.7M | 0.01% | −589,916−33.9% | Reduced |
| Bank of America Corp | 1,139,810 | $92.9M | 0.01% | +75,355+7.1% | Added |
| Hood River Capital Management LLC | 1,120,747 | $91.4M | 0.66% | +64,213+6.1% | Added |
| Holocene Advisors, LP | 1,106,177 | $90.2M | 0.21% | +1,106,177 | New |
| Morgan Stanley | 1,084,835 | $88.4M | 0.00% | +124,328+12.9% | Added |
| UBS Asset Management Americas Inc | 964,479 | $78.6M | 0.01% | −366,517−27.5% | Reduced |
| Fisher Asset Management, LLC | 957,691 | $78.1M | 0.02% | −155,877−14.0% | Reduced |
| Charles Schwab Investment Management Inc | 923,927 | $75.3M | 0.01% | −268,158−22.5% | Reduced |
| Vanguard Fiduciary Trust Co | 896,738 | $73.1M | 0.02% | −69,037−7.1% | Reduced |
| UBS Group AG | 861,520 | $70.2M | 0.01% | −474,751−35.5% | Reduced |
| Bank of New York Mellon Corp | 859,538 | $70.1M | 0.01% | −100,606−10.5% | Reduced |
| Price T Rowe Associates Inc | 853,360 | $69.6M | 0.01% | −190,372−18.2% | Reduced |
| Summit Partners Public Asset Management, LLC | 830,247 | $67.7M | 1.76% | +290,103+53.7% | Added |
| Western Financial Corp | 820,239 | $66.9M | 19.58% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 637,399 | $51.8M | 0.00% | −45,669−6.7% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 625,569 | $51.0M | 0.10% | −211,412−25.3% | Reduced |
| Susquehanna International Group, LLP | 596,573 | $48.6M | 0.04% | +217,740+57.5% | Added |
| Two Sigma Investments, LP | 580,609 | $47.3M | 0.04% | +544,809+1,521.8% | Added |
| Pictet Asset Management Holding SA | 573,419 | $46.7M | 0.04% | −699,847−55.0% | Reduced |
| BNP Paribas Arbitrage, SA | 558,643 | $45.5M | 0.02% | −91,956−14.1% | Reduced |
| Lord, Abbett & Co. LLC | 540,466 | $44.1M | 0.13% | +227,642+72.8% | Added |
| 1832 Asset Management L.P. | 538,500 | $43.9M | 0.05% | +538,500 | New |
| Principal Financial Group Inc | 514,658 | $41.9M | 0.02% | +24,536+5.0% | Added |
| HRT Financial LP | 498,655 | $40.6M | 0.07% | +498,655 | New |
| Voya Investment Management LLC | 483,495 | $39.4M | 0.03% | −172,634−26.3% | Reduced |
| Balyasny Asset Management LLC | 470,754 | $38.4M | 0.07% | +264,342+128.1% | Added |
| Renaissance Technologies LLC | 468,921 | $38.2M | 0.05% | −567,574−54.8% | Reduced |
| Franklin Resources Inc | 462,133 | $37.7M | 0.01% | −574−0.1% | Reduced |
| D. E. Shaw & Co., Inc. | 431,560 | $35.2M | 0.02% | −752,278−63.5% | Reduced |
| Nuveen, LLC | 415,883 | $33.9M | 0.01% | −83,954−16.8% | Reduced |
| Rhumbline Advisers | 374,897 | $30.6M | 0.02% | −29,539−7.3% | Reduced |
| Eventide Asset Management, LLC | 370,000 | $30.2M | 0.40% | 00.0% | Unchanged |
| American Century Companies Inc | 364,211 | $29.7M | 0.01% | −287,333−44.1% | Reduced |
| Millennium Management LLC | 329,337 | $26.8M | 0.02% | +329,337 | New |
| LPL Financial LLC | 310,761 | $25.3M | 0.01% | +181,262+140.0% | Added |
| Artisan Partners Limited Partnership | 310,706 | $25.3M | 0.04% | +310,706 | New |
| Marshall Wace, LLP | 305,031 | $24.9M | 0.02% | +125,458+69.9% | Added |
| SEI Investments Co | 300,619 | $24.5M | 0.02% | +97,399+47.9% | Added |
| Nordea Investment Management AB | 284,175 | $23.6M | 0.02% | −22,264−7.3% | Reduced |
| Russell Investments Group, Ltd. | 284,096 | $23.2M | 0.02% | +110,101+63.3% | Added |
| Citigroup Inc | 264,678 | $21.6M | 0.01% | +13,110+5.2% | Added |
| California Public Employees Retirement System | 256,314 | $20.9M | 0.01% | −819−0.3% | Reduced |
| Squarepoint Ops LLC | 255,907 | $20.9M | 0.04% | +255,907 | New |
| Envestnet Asset Management Inc | 254,228 | $20.7M | 0.00% | +187,478+280.9% | Added |
| Standard Life Aberdeen plc | 251,968 | $20.5M | 0.03% | −112,004−30.8% | Reduced |
| Swiss National Bank | 238,900 | $19.5M | 0.01% | −3,100−1.3% | Reduced |
| Legal & General Group Plc | 237,216 | $19.3M | 0.00% | +8,119+3.5% | Added |
| Privium Fund Management B.V. | 234,222 | $19.1M | 3.51% | −132,714−36.2% | Reduced |
| Arrowstreet Capital, Limited Partnership | 218,133 | $17.8M | 0.01% | −368,992−62.8% | Reduced |
| Life Cycle Investment Partners Ltd | 209,068 | $17.0M | 0.08% | +209,068 | New |
| HSBC Holdings PLC | 203,800 | $16.8M | 0.01% | +52,754+34.9% | Added |
| Assenagon Asset Management S.A. | 201,927 | $16.5M | 0.02% | +143,192+243.8% | Added |
| Woodline Partners LP | 200,184 | $16.3M | 0.05% | 00.0% | Unchanged |
| Integral Health Asset Management, LLC | 200,000 | $16.3M | 0.67% | −100,000−33.3% | Reduced |
| Jane Street Group, LLC | 196,205 | $16.0M | 0.01% | +180,430+1,143.8% | Added |
| AQR Capital Management LLC | 198,842 | $15.8M | 0.01% | +31,632+18.9% | Added |
| Mutual of America Capital Management LLC | 191,432 | $15.6M | 0.15% | +7,128+3.9% | Added |
| Pinnacle Associates Ltd | 170,131 | $13.9M | 0.15% | −5,325−3.0% | Reduced |
| Raymond James Financial Inc | 169,913 | $13.8M | 0.00% | −12,642−6.9% | Reduced |
| WCM Investment Management, LLC | 171,232 | $13.8M | 0.02% | −343−0.2% | Reduced |
| SEB Asset Management AB | 158,205 | $12.9M | 0.05% | 00.0% | Unchanged |
| Clearbridge Investments, LLC | 157,110 | $12.8M | 0.01% | −45,237−22.4% | Reduced |
| Ameriprise Financial Inc | 155,908 | $12.7M | 0.00% | −35,146−18.4% | Reduced |
| Affinity Asset Advisors, LLC | 150,000 | $12.2M | 0.60% | −50,000−25.0% | Reduced |
| Deutsche Bank AG | 149,240 | $12.2M | 0.00% | −110,723−42.6% | Reduced |
| Wealth Effects LLC | 147,300 | $12.0M | 3.24% | +4,000+2.8% | Added |
| Retirement Systems of Alabama | 145,687 | $11.9M | 0.04% | −25,985−15.1% | Reduced |
| Toronto Dominion Bank | 144,928 | $11.8M | 0.02% | −5,350−3.6% | Reduced |
| HighTower Advisors, LLC | 140,394 | $11.4M | 0.01% | −6,068−4.1% | Reduced |
| California State Teachers Retirement System | 139,826 | $11.4M | 0.01% | −4,487−3.1% | Reduced |
| Weiss Asset Management LP | 134,014 | $10.9M | 0.12% | +134,014 | New |
| Bank of Nova Scotia | 133,805 | $10.9M | 0.02% | −2,155−1.6% | Reduced |
| Alliancebernstein L.P. | 173,265 | $10.9M | 0.00% | −107,129−38.2% | Reduced |
| PFM Health Sciences, LP | 131,667 | $10.7M | 0.93% | +67,388+104.8% | Added |
| Polygon Management Ltd. | 130,484 | $10.6M | 1.73% | +3,286+2.6% | Added |
| Wells Fargo & Company | 128,789 | $10.5M | 0.00% | −29,609−18.7% | Reduced |
| Rhenman & Partners Asset Management AB | 128,000 | $10.4M | 0.98% | −16,500−11.4% | Reduced |
| Vanguard Asset Management, Ltd | 119,102 | $9.71M | 0.01% | +6,131+5.4% | Added |
| Catalyst Funds Management Pty Ltd | 117,600 | $9.59M | 0.54% | +117,600 | New |
| New York State Teachers Retirement System | 116,948 | $9.53M | 0.02% | −7,905−6.3% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 116,393 | $9.49M | 0.01% | −3,845−3.2% | Reduced |