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 |
|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | 111,955 | $9.13M | 0.01% | −48,467−30.2% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 116,393 | $9.49M | 0.01% | −3,845−3.2% | Reduced |
| New York State Teachers Retirement System | 116,948 | $9.53M | 0.02% | −7,905−6.3% | Reduced |
| Catalyst Funds Management Pty Ltd | 117,600 | $9.59M | 0.54% | +117,600 | New |
| Vanguard Asset Management, Ltd | 119,102 | $9.71M | 0.01% | +6,131+5.4% | Added |
| Rhenman & Partners Asset Management AB | 128,000 | $10.4M | 0.98% | −16,500−11.4% | Reduced |
| Wells Fargo & Company | 128,789 | $10.5M | 0.00% | −29,609−18.7% | Reduced |
| Polygon Management Ltd. | 130,484 | $10.6M | 1.73% | +3,286+2.6% | Added |
| PFM Health Sciences, LP | 131,667 | $10.7M | 0.93% | +67,388+104.8% | Added |
| Alliancebernstein L.P. | 173,265 | $10.9M | 0.00% | −107,129−38.2% | Reduced |
| Bank of Nova Scotia | 133,805 | $10.9M | 0.02% | −2,155−1.6% | Reduced |
| Weiss Asset Management LP | 134,014 | $10.9M | 0.12% | +134,014 | New |
| California State Teachers Retirement System | 139,826 | $11.4M | 0.01% | −4,487−3.1% | Reduced |
| HighTower Advisors, LLC | 140,394 | $11.4M | 0.01% | −6,068−4.1% | Reduced |
| Toronto Dominion Bank | 144,928 | $11.8M | 0.02% | −5,350−3.6% | Reduced |
| Retirement Systems of Alabama | 145,687 | $11.9M | 0.04% | −25,985−15.1% | Reduced |
| Wealth Effects LLC | 147,300 | $12.0M | 3.24% | +4,000+2.8% | Added |
| Deutsche Bank AG | 149,240 | $12.2M | 0.00% | −110,723−42.6% | Reduced |
| Affinity Asset Advisors, LLC | 150,000 | $12.2M | 0.60% | −50,000−25.0% | Reduced |
| Ameriprise Financial Inc | 155,908 | $12.7M | 0.00% | −35,146−18.4% | Reduced |
| Clearbridge Investments, LLC | 157,110 | $12.8M | 0.01% | −45,237−22.4% | Reduced |
| SEB Asset Management AB | 158,205 | $12.9M | 0.05% | 00.0% | Unchanged |
| WCM Investment Management, LLC | 171,232 | $13.8M | 0.02% | −343−0.2% | Reduced |
| Raymond James Financial Inc | 169,913 | $13.8M | 0.00% | −12,642−6.9% | Reduced |
| Pinnacle Associates Ltd | 170,131 | $13.9M | 0.15% | −5,325−3.0% | Reduced |
| Mutual of America Capital Management LLC | 191,432 | $15.6M | 0.15% | +7,128+3.9% | Added |
| AQR Capital Management LLC | 198,842 | $15.8M | 0.01% | +31,632+18.9% | Added |
| Jane Street Group, LLC | 196,205 | $16.0M | 0.01% | +180,430+1,143.8% | Added |
| Integral Health Asset Management, LLC | 200,000 | $16.3M | 0.67% | −100,000−33.3% | Reduced |
| Woodline Partners LP | 200,184 | $16.3M | 0.05% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 201,927 | $16.5M | 0.02% | +143,192+243.8% | Added |
| HSBC Holdings PLC | 203,800 | $16.8M | 0.01% | +52,754+34.9% | Added |
| Life Cycle Investment Partners Ltd | 209,068 | $17.0M | 0.08% | +209,068 | New |
| Arrowstreet Capital, Limited Partnership | 218,133 | $17.8M | 0.01% | −368,992−62.8% | Reduced |
| Privium Fund Management B.V. | 234,222 | $19.1M | 3.51% | −132,714−36.2% | Reduced |
| Legal & General Group Plc | 237,216 | $19.3M | 0.00% | +8,119+3.5% | Added |
| Swiss National Bank | 238,900 | $19.5M | 0.01% | −3,100−1.3% | Reduced |
| Standard Life Aberdeen plc | 251,968 | $20.5M | 0.03% | −112,004−30.8% | Reduced |
| Envestnet Asset Management Inc | 254,228 | $20.7M | 0.00% | +187,478+280.9% | Added |
| Squarepoint Ops LLC | 255,907 | $20.9M | 0.04% | +255,907 | New |
| California Public Employees Retirement System | 256,314 | $20.9M | 0.01% | −819−0.3% | Reduced |
| Citigroup Inc | 264,678 | $21.6M | 0.01% | +13,110+5.2% | Added |
| Russell Investments Group, Ltd. | 284,096 | $23.2M | 0.02% | +110,101+63.3% | Added |
| Nordea Investment Management AB | 284,175 | $23.6M | 0.02% | −22,264−7.3% | Reduced |
| SEI Investments Co | 300,619 | $24.5M | 0.02% | +97,399+47.9% | Added |
| Marshall Wace, LLP | 305,031 | $24.9M | 0.02% | +125,458+69.9% | Added |
| Artisan Partners Limited Partnership | 310,706 | $25.3M | 0.04% | +310,706 | New |
| LPL Financial LLC | 310,761 | $25.3M | 0.01% | +181,262+140.0% | Added |
| Millennium Management LLC | 329,337 | $26.8M | 0.02% | +329,337 | New |
| American Century Companies Inc | 364,211 | $29.7M | 0.01% | −287,333−44.1% | Reduced |
| Eventide Asset Management, LLC | 370,000 | $30.2M | 0.40% | 00.0% | Unchanged |
| Rhumbline Advisers | 374,897 | $30.6M | 0.02% | −29,539−7.3% | Reduced |
| Nuveen, LLC | 415,883 | $33.9M | 0.01% | −83,954−16.8% | Reduced |
| D. E. Shaw & Co., Inc. | 431,560 | $35.2M | 0.02% | −752,278−63.5% | Reduced |
| Franklin Resources Inc | 462,133 | $37.7M | 0.01% | −574−0.1% | Reduced |
| Renaissance Technologies LLC | 468,921 | $38.2M | 0.05% | −567,574−54.8% | Reduced |
| Balyasny Asset Management LLC | 470,754 | $38.4M | 0.07% | +264,342+128.1% | Added |
| Voya Investment Management LLC | 483,495 | $39.4M | 0.03% | −172,634−26.3% | Reduced |
| HRT Financial LP | 498,655 | $40.6M | 0.07% | +498,655 | New |
| Principal Financial Group Inc | 514,658 | $41.9M | 0.02% | +24,536+5.0% | Added |
| 1832 Asset Management L.P. | 538,500 | $43.9M | 0.05% | +538,500 | New |
| Lord, Abbett & Co. LLC | 540,466 | $44.1M | 0.13% | +227,642+72.8% | Added |
| BNP Paribas Arbitrage, SA | 558,643 | $45.5M | 0.02% | −91,956−14.1% | Reduced |
| Pictet Asset Management Holding SA | 573,419 | $46.7M | 0.04% | −699,847−55.0% | Reduced |
| Two Sigma Investments, LP | 580,609 | $47.3M | 0.04% | +544,809+1,521.8% | Added |
| Susquehanna International Group, LLP | 596,573 | $48.6M | 0.04% | +217,740+57.5% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 625,569 | $51.0M | 0.10% | −211,412−25.3% | Reduced |
| JPMorgan Chase & Co | 637,399 | $51.8M | 0.00% | −45,669−6.7% | Reduced |
| Western Financial Corp | 820,239 | $66.9M | 19.58% | 00.0% | Unchanged |
| Summit Partners Public Asset Management, LLC | 830,247 | $67.7M | 1.76% | +290,103+53.7% | Added |
| Price T Rowe Associates Inc | 853,360 | $69.6M | 0.01% | −190,372−18.2% | Reduced |
| Bank of New York Mellon Corp | 859,538 | $70.1M | 0.01% | −100,606−10.5% | Reduced |
| UBS Group AG | 861,520 | $70.2M | 0.01% | −474,751−35.5% | Reduced |
| Vanguard Fiduciary Trust Co | 896,738 | $73.1M | 0.02% | −69,037−7.1% | Reduced |
| Charles Schwab Investment Management Inc | 923,927 | $75.3M | 0.01% | −268,158−22.5% | Reduced |
| Fisher Asset Management, LLC | 957,691 | $78.1M | 0.02% | −155,877−14.0% | Reduced |
| UBS Asset Management Americas Inc | 964,479 | $78.6M | 0.01% | −366,517−27.5% | Reduced |
| Morgan Stanley | 1,084,835 | $88.4M | 0.00% | +124,328+12.9% | Added |
| Holocene Advisors, LP | 1,106,177 | $90.2M | 0.21% | +1,106,177 | New |
| Hood River Capital Management LLC | 1,120,747 | $91.4M | 0.66% | +64,213+6.1% | Added |
| Bank of America Corp | 1,139,810 | $92.9M | 0.01% | +75,355+7.1% | Added |
| Goldman Sachs Group Inc | 1,150,007 | $93.7M | 0.01% | −589,916−33.9% | Reduced |
| Dimensional Fund Advisors LP | 1,181,608 | $96.3M | 0.02% | +573,077+94.2% | Added |
| Northern Trust Corp | 1,192,868 | $97.2M | 0.01% | −462,969−28.0% | Reduced |
| Jupiter Topco LLC | 1,221,596 | $99.6M | 0.04% | +1,221,596 | New |
| Driehaus Capital Management LLC | 1,350,556 | $110.1M | 0.64% | +160,221+13.5% | Added |
| First Trust Advisors LP | 1,352,918 | $110.3M | 0.06% | +1,203,770+807.1% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,389,055 | $113.2M | 1.18% | −184,242−11.7% | Reduced |
| Vestal Point Capital, LP | 1,575,000 | $128.4M | 3.00% | −700,000−30.8% | Reduced |
| Siren, L.L.C. | 1,715,476 | $139.8M | 2.84% | +100,000+6.2% | Added |
| Baker Bros. Advisors LP | 1,992,783 | $162.4M | 0.81% | 00.0% | Unchanged |
| Fred Alger Management, LLC | 3,301,919 | $269.1M | 0.90% | −40,574−1.2% | Reduced |
| Geode Capital Management, LLC | 3,530,612 | $298.8M | 0.02% | −748,216−17.5% | Reduced |
| Invesco Ltd. | 3,883,976 | $316.6M | 0.03% | +603,329+18.4% | Added |
| Norges Bank | 3,896,536 | $317.6M | 0.03% | +3,896,536 | New |
| State Street Corp | 5,694,640 | $464.2M | 0.01% | −801,490−12.3% | Reduced |
| Vanguard Capital Management LLC | 6,110,953 | $498.1M | 0.01% | +78,537+1.3% | Added |
| Vanguard Portfolio Management LLC | 6,351,355 | $517.7M | 0.02% | −794,781−11.1% | Reduced |
| FMR LLC | 8,039,804 | $655.3M | 0.03% | +773,152+10.6% | Added |
| Avoro Capital Advisors LLC | 11,355,555 | $925.6M | 8.31% | +655,556+6.1% | Added |