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Arrowhead Pharmaceuticals (ARWR) Institutional Ownership

Arrowhead Pharmaceuticals logo
$62.75 +2.01 (+3.31%)
Closing price 10/9/2026 04:00 PM Eastern
Extended Trading
$62.30 -0.45 (-0.73%)
As of 10/9/2026 07:45 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Arrowhead Pharmaceuticals (NASDAQ:ARWR)

Current
Institutional Ownership
Percentage
62.61%
Number of
Institutional Buyers
(last 12 months)
287
Total
Institutional Inflows
(last 12 months)
$3.02B
Number of
Institutional Sellers
(last 12 months)
114
Total
Institutional Outflows
(last 12 months)
$832.27M
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ARWR Institutional Buying and Selling by Quarter

Arrowhead Pharmaceuticals Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/9/2026GAMMA Investing LLC4,542$297K0.0%+17.1%0.003%
10/8/2026Financial Enhancement Group LLC4,900$301K0.0%-10.9%0.003%
9/23/2026QRG Capital Management Inc.4,810$392K0.0%+7.1%0.003%
9/9/2026Tidal Investments LLC8,325$679K0.0%-82.6%0.006%
9/9/2026WINTON GROUP Ltd9,630$785K0.0%-82.5%0.007%
9/9/2026Engineers Gate Manager LP36,495$2.98M0.0%-18.6%0.026%
9/9/2026Integrated Wealth Concepts LLC8,297$676K0.0%+5.2%0.006%
9/9/2026IFP Advisors Inc8,139$663K0.0%-6.5%0.006%
9/9/2026Squarepoint Ops LLC255,907$20.86M0.0%N/A0.182%
9/8/2026Arizona State Retirement System32,843$2.68M0.0%-2.2%0.023%
9/8/2026Nykredit A S4,500$367K0.0%N/A0.003%
8/27/2026Corient Private Wealth LP15,769$1.29M0.0%-2.1%0.011%
8/26/2026HighTower Advisors LLC140,394$11.44M0.0%-4.1%0.100%
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al43,350$3.53M0.0%N/A0.031%
8/23/2026Washington Trust Advisors Inc.26,185$2.13M0.2%+3.6%0.019%
8/22/2026Compass Financial Management LLC2,000$179K0.0%N/A0.001%
8/22/2026AlphaGrep UK Ltd4,599$375K0.1%N/A0.003%
8/22/2026Syon Capital LLC2,946$240K0.0%N/A0.002%
8/22/2026Concurrent Investment Advisors LLC2,496$203K0.0%N/A0.002%
8/21/2026Nykredit A S4,500$367K0.0%N/A0.003%
8/20/2026Headlands Technologies LLC2,595$212K0.0%N/A0.002%
8/20/2026Two Sigma Securities LLC11,256$917K0.1%N/A0.008%
8/20/2026Benjamin Edwards Inc.8,841$721K0.0%N/A0.006%
8/20/2026Alyeska Investment Group L.P.58,722$4.79M0.0%-87.6%0.042%
8/19/2026Van ECK Associates Corp111,500$9.09M0.0%+490.3%0.079%
8/19/2026Hsbc Holdings PLC203,800$16.77M0.0%+34.9%0.145%
8/19/2026Wellington Management Group LLP50,081$4.08M0.0%-8.1%0.036%
8/19/2026Archer Investment Corp500$41K0.0%N/A0.000%
8/18/2026Empowered Funds LLC108,041$8.81M0.0%N/A0.077%
8/18/2026Centaurus Financial Inc.1,774$145K0.0%N/A0.001%
8/18/2026Jefferies Financial Group Inc.4,994$407K0.0%N/A0.004%
8/18/2026Public Employees Retirement System of Ohio38,507$3.14M0.0%N/A0.027%
8/17/2026Transamerica Financial Advisors LLC77,403$6.31M0.5%N/A0.055%
8/17/2026Corient Private Wealth LP16,113$1.31M0.0%N/A0.011%
8/17/2026Ausdal Financial Partners Inc.4,725$385K0.0%N/A0.003%
8/15/2026Jupiter Topco LLC1,221,596$99.62M0.0%N/A0.867%
8/14/2026Hsbc Holdings PLC203,800$16.77M0.0%N/A0.145%
8/14/2026Osterweis Capital Management Inc.50,315$4.10M0.2%N/A0.036%
8/14/2026Legal & General Group Plc237,216$19.34M0.0%N/A0.168%
8/14/2026The Manufacturers Life Insurance Company111,955$9.13M0.0%N/A0.079%
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8/14/2026Algert Global LLC38,340$3.13M0.0%-36.1%0.027%
8/13/2026Sanctuary Advisors LLC20,830$1.70M0.0%N/A0.015%
8/13/2026Polymer Capital Management HK LTD36,800$3M0.2%N/A0.026%
8/13/2026Connor Clark & Lunn Investment Management Ltd.625,569$50.99M0.1%N/A0.444%
8/13/2026PEAK6 LLC2,500$204K0.0%N/A0.002%
8/13/2026Meiji Yasuda Asset Management Co Ltd.3,231$263K0.0%N/A0.002%
8/13/2026Bank of Nova Scotia133,805$10.91M0.0%N/A0.095%
8/12/2026Compass Financial Management LLC2,000$179K0.0%N/A0.001%
8/12/2026Elevation Point Wealth Partners LLC16,991$1.39M0.0%N/A0.012%
8/12/2026Quantbot Technologies LP10,831$883K0.0%N/A0.008%
8/12/2026W1M Asset Management Ltd10,700$873K0.0%N/A0.008%
8/12/2026Landscape Capital Management L.L.C.25,623$2.09M0.1%N/A0.018%
8/12/2026EP Wealth Advisors LLC38,135$3.11M0.0%N/A0.027%
8/11/2026Allworth Financial LP604$49K0.0%N/A0.000%
8/11/2026B. Metzler seel. Sohn & Co. AG26,338$2.15M0.0%N/A0.019%
8/11/2026Virtus Advisers LLC9,249$754K0.3%N/A0.007%
8/11/2026Vise Technologies Inc.4,654$379K0.0%N/A0.003%
8/11/2026E Fund Management Co. Ltd.5,841$476K0.0%N/A0.004%
8/10/2026Myecfo LLC17,497$1.43M0.5%N/A0.012%
8/7/2026Citizens Financial Group Inc. RI3,794$309K0.0%N/A0.003%
8/7/2026BlackRock Inc.14,830,553$1.21B0.0%N/A10.529%
8/7/2026Pallas Capital Advisors LLC4,669$381K0.0%N/A0.003%
8/7/2026Deutsche Bank AG149,240$12.17M0.0%N/A0.106%
8/7/2026Mitsubishi UFJ Asset Management Co. Ltd.3,270$267K0.0%N/A0.002%
8/7/2026Persistent Asset Partners Ltd482$39K0.0%N/A0.000%
8/7/2026Wealth Effects LLC147,300$12.01M3.2%N/A0.105%
8/6/2026Global Retirement Partners LLC5,498$448K0.0%N/A0.004%
8/6/2026Bank of New York Mellon Corp859,538$70.06M0.0%N/A0.610%
8/6/2026State of Wyoming4,175$340K0.0%N/A0.003%
7/10/2026Tema ETFs LLC5,263$429K0.0%-41.3%0.004%
7/10/2026Carolina Wealth Advisors LLC345$28K0.0%+80.6%0.000%
7/9/2026Allied Private Wealth LLC500$43K0.0%N/A0.000%
7/8/2026Assenagon Asset Management S.A.201,927$16.46M0.0%+243.8%0.143%
7/7/2026GAMMA Investing LLC3,879$316K0.0%+15.9%0.003%
7/7/2026Harbor Investment Advisory LLC1,285$105K0.0%N/A0.001%
7/7/2026CoreCap Advisors LLC3,000$245K0.0%N/A0.002%
7/2/2026 Versant Capital Management Inc335$27K0.0%+285.1%0.000%
6/18/2026Pacer Advisors Inc.23,922$1.50M0.0%N/A0.017%
6/16/2026Empowered Funds LLC137,220$8.60M0.1%+661.6%0.097%
6/8/2026Pine Valley Investments Ltd Liability Co18,814$1.18M0.1%+1.8%0.013%
6/3/2026Parallel Advisors LLC1,004$63K0.0%+407.1%0.001%
6/2/2026Optiver Holding B.V.408$26K0.0%+83.8%0.000%
5/22/2026Summitry LLC7,183$450K0.0%N/A0.005%
5/19/2026Edgestream Partners L.P.91,997$5.77M0.2%+152.2%0.065%
5/19/2026Janus Henderson Group PLC1,436,990$90.12M0.0%+12.2%1.020%
5/19/2026Centaurus Financial Inc.1,738$109K0.0%N/A0.001%
5/18/2026California State Teachers Retirement System144,313$9.05M0.0%+21.9%0.102%
5/18/2026Royal Bank of Canada61,316$3.84M0.0%+19.8%0.044%
5/18/2026Empowered Funds LLC137,220$8.60M0.1%+661.6%0.097%
5/18/2026Exome Asset Management LLC45,721$2.87M1.5%-8.1%0.032%
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5/16/2026The Manufacturers Life Insurance Company160,422$10.06M0.0%+63.4%0.114%
5/16/2026Quantinno Capital Management LP12,790$802K0.0%+6.5%0.009%
5/15/2026Affinity Asset Advisors LLC200,000$12.54M0.6%+185.7%0.142%
5/15/2026Entropy Technologies LP10,620$666K0.0%-60.9%0.008%
5/14/2026Renaissance Technologies LLC1,036,495$64.99M0.1%N/A0.736%
5/14/2026Arrowstreet Capital Limited Partnership587,125$36.81M0.0%-71.9%0.417%
5/14/2026Siren L.L.C.1,615,476$101.29M2.8%+7.7%1.147%
5/14/2026Inceptionr LLC6,791$426K0.1%N/A0.005%
5/14/2026Bank of Nova Scotia135,960$8.53M0.0%N/A0.097%
5/14/2026State of Wyoming4,209$264K0.0%-58.4%0.003%


ARWR Institutional Ownership - Frequently Asked Questions

During the previous two years, 404 institutional investors and hedge funds held shares of Arrowhead Pharmaceuticals. The most heavily invested institutionals were BlackRock Inc. ($1.21B), Vanguard Group Inc. ($1.02B), Avoro Capital Advisors LLC ($705.39M), State Street Corp ($425.15M), Geode Capital Management LLC ($216.80M), Baker BROS. Advisors LP ($144.44M), and Fred Alger Management LLC ($121.69M).Learn more on Arrowhead Pharmaceuticals' institutional investors.

62.61% of Arrowhead Pharmaceuticals' stock is owned by institutional investors. Learn more on ARWR's institutional investor holdings.

Of the 366 institutional investors that purchased Arrowhead Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($14.83M), Norges Bank ($5.68M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($2.77M), Avoro Capital Advisors LLC ($2.52M), Marshall Wace LLP ($2.18M), Arrowstreet Capital Limited Partnership ($2.09M), and Fred Alger Management LLC ($1.83M).

Institutional investors have bought a total of 46,091,104 shares in the last 24 months. This purchase volume represents approximately $3.02B in transactions.

Of the 114 institutional investors that sold Arrowhead Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Marshall Wace LLP ($2.03M), Arrowstreet Capital Limited Partnership ($1.50M), UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($1.42M), Siren L.L.C. ($1.17M), Vanguard Group Inc. ($742.75K), UBS Group AG ($682.41K), and Aberdeen Group plc ($674.10K).

Institutional investors have sold a total of 14,565,183 shares in the last 24 months. This volume of shares sold represents approximately $832.27M in transactions.


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Institutional ownership data for NASDAQ:ARWR is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/9/2026. New 13F filings are added each quarter as they're published.
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