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Arrowhead Pharmaceuticals (ARWR) Institutional Ownership

Arrowhead Pharmaceuticals logo
$88.33 +0.68 (+0.78%)
As of 04:00 PM Eastern
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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)
279
Total
Institutional Inflows
(last 12 months)
$2.84B
Number of
Institutional Sellers
(last 12 months)
121
Total
Institutional Outflows
(last 12 months)
$809.65M
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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
8/10/2026Myecfo LLC17,497$1.43M0.5%N/A0.012%
8/7/2026 Citizens Financial Group Inc. RI3,794$309K0.0%N/A0.003%
8/7/2026 BlackRock Inc.14,830,553$1.21B0.0%N/A10.529%
8/7/2026 Pallas Capital Advisors LLC4,669$381K0.0%N/A0.003%
8/7/2026 Deutsche Bank AG149,240$12.17M0.0%N/A0.106%
8/7/2026 Mitsubishi UFJ Asset Management Co. Ltd.3,270$267K0.0%N/A0.002%
8/7/2026 Persistent Asset Partners Ltd482$39K0.0%N/A0.000%
8/7/2026 Wealth Effects LLC147,300$12.01M3.2%N/A0.105%
8/6/2026 Global Retirement Partners LLC5,498$448K0.0%N/A0.004%
8/6/2026 Bank of New York Mellon Corp859,538$70.06M0.0%N/A0.610%
8/6/2026 State of Wyoming4,175$340K0.0%N/A0.003%
7/10/2026 Tema ETFs LLC5,263$429K0.0%-41.3%0.004%
7/10/2026 Carolina Wealth Advisors LLC345$28K0.0%+80.6%0.000%
7/9/2026 Allied Private Wealth LLC500$43K0.0%N/A0.000%
7/8/2026 Assenagon Asset Management S.A.201,927$16.46M0.0%+243.8%0.143%
7/7/2026 GAMMA Investing LLC3,879$316K0.0%+15.9%0.003%
7/7/2026 Harbor Investment Advisory LLC1,285$105K0.0%N/A0.001%
7/7/2026 CoreCap 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%
6/8/2026 Pine Valley Investments Ltd Liability Co18,814$1.18M0.1%+1.8%0.013%
6/3/2026 Parallel Advisors LLC1,004$63K0.0%+407.1%0.001%
6/2/2026Optiver Holding B.V.408$26K0.0%+83.8%0.000%
5/22/2026 Summitry 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%
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%
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5/14/2026Bank of Nova Scotia135,960$8.53M0.0%N/A0.097%
5/14/2026 State of Wyoming4,209$264K0.0%-58.4%0.003%
5/13/2026Cetera Investment Advisers9,424$591K0.0%+40.7%0.007%
5/13/2026First Trust Advisors LP149,148$9.35M0.0%-37.3%0.106%
5/8/2026 PNC Financial Services Group Inc.7,312$458K0.0%-34.1%0.005%
5/7/2026WCM Investment Management LLC171,575$9.89M0.0%+23.5%0.123%
5/7/2026Dimensional Fund Advisors LP608,531$38.15M0.0%+312.8%0.435%
5/7/2026 Parallel Advisors LLC1,004$63K0.0%+407.1%0.001%
5/7/2026 KBC Group NV3,773$237K0.0%-20.6%0.003%
5/7/2026 SEB Asset Management AB158,205$9.92M0.0%N/A0.113%
5/7/2026Swiss National Bank242,000$15.17M0.0%-1.4%0.173%
5/6/2026California Public Employees Retirement System257,133$16.12M0.0%N/A0.184%
5/6/2026 Assetmark Inc.2,470$155K0.0%+896.0%0.002%
5/6/2026Bessemer Group Inc.79,140$4.96M0.0%+52.8%0.057%
5/6/2026Allspring Global Investments Holdings LLC55,179$3.47M0.0%+658.3%0.039%
5/6/2026 Independent Financial Group LLC14,125$886K0.0%N/A0.010%
5/5/2026 Beaumont Financial Advisors LLC10,240$642K0.0%-1.4%0.007%
5/5/2026 Bank of New York Mellon Corp960,144$60.20M0.0%+8.1%0.686%
5/5/2026Three Seasons Wealth LLC9,315$584K0.2%N/A0.007%
5/4/2026 State of Michigan Retirement System33,700$2.11M0.0%N/A0.024%
5/4/2026 Principal Financial Group Inc.490,122$30.73M0.0%-31.5%0.350%
5/4/2026Teachers Retirement System of The State of Kentucky43,261$2.71M0.0%+24.4%0.031%
5/2/2026 International Assets Investment Management LLC3,413$215K0.0%N/A0.002%
5/1/2026 Commonwealth of Pennsylvania Public School Empls Retrmt SYS35,086$2.20M0.0%+2.5%0.025%
5/1/2026 Fifth Third Bancorp33,447$2.10M0.0%+2,648.3%0.024%
4/30/2026Hsbc Holdings PLC151,046$9.45M0.0%N/A0.108%
4/30/2026 First Horizon Corp654$41K0.0%+36.3%0.000%
4/30/2026 Capstone Capital Management Ltd15,740$987K1.0%N/A0.011%
4/30/2026 Oregon Public Employees Retirement Fund28,700$1.80M0.0%-9.2%0.020%
4/28/2026 Abel Hall LLC7,910$496K0.1%-10.3%0.006%
4/28/2026 QRG Capital Management Inc.4,493$282K0.0%-22.0%0.003%
4/27/2026World Investment Advisors3,716$233K0.0%-66.2%0.003%
4/27/2026 New York State Teachers Retirement System124,853$7.83M0.0%-16.6%0.089%
4/27/2026 Sierra Summit Advisors LLC14,353$900K0.1%N/A0.010%
4/27/2026 Private Advisor Group LLC15,426$967K0.0%+43.3%0.011%
4/27/2026Elevation Point Wealth Partners LLC11,977$751K0.0%N/A0.009%
4/27/2026 Fideuram Intesa Sanpaolo Private Banking S.P.A.44,045$2.76M0.1%+14.0%0.031%
4/25/2026 Strs Ohio32,500$2.04M0.0%+3.2%0.023%
4/23/2026Inspire Investing LLC1,709$107K0.0%N/A0.001%
4/22/2026 DDFG Inc10,728$673K0.1%-27.2%0.008%
4/22/2026 Janney Montgomery Scott LLC4,296$269K0.0%N/A0.003%
4/22/2026 Pictet Asset Management Holding SA1,273,266$79.61M0.1%+23.8%0.909%
4/21/2026 Louisiana State Employees Retirement System40,600$2.55M0.0%N/A0.029%
4/20/2026 OP Asset Management Ltd10,842$680K0.0%N/A0.008%
4/20/2026 Assenagon Asset Management S.A.58,735$3.68M0.0%-91.4%0.042%
4/16/2026 Diversified Trust Co34,553$2.17M0.0%N/A0.025%
3/17/2026Rockefeller Capital Management L.P.557$37K0.0%-37.4%0.000%
3/13/2026World Investment Advisors10,987$729K0.0%-20.3%0.008%
3/9/2026Corient Private Wealth LLC18,226$1.21M0.0%+3.1%0.013%
3/3/2026Bank of Hawaii19,218$1.28M0.1%N/A0.014%
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2/19/2026Invesco Ltd.547,758$36.37M0.0%+8.9%0.391%
2/19/2026Corient Private Wealth LLC18,226$1.21M0.0%+3.1%0.013%
2/18/2026Mercer Global Advisors Inc. ADV5,300$352K0.0%N/A0.004%
2/18/2026 Summit Global Investments14,287$949K0.1%+43.8%0.010%
2/18/2026State of Tennessee Department of Treasury55,642$3.86M0.0%+2.0%0.040%
2/18/2026EP Wealth Advisors LLC38,683$2.57M0.0%N/A0.028%
2/18/2026Mackenzie Financial Corp11,445$768K0.0%+12.5%0.008%
2/18/2026Empowered Funds LLC18,018$1.20M0.0%+4.5%0.013%
2/18/2026Voloridge Investment Management LLC288,511$19.15M0.1%-28.3%0.206%
2/18/2026VestGen Advisors LLC12,312$817K0.0%N/A0.009%


ARWR Institutional Ownership - Frequently Asked Questions

During the previous two years, 385 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 346 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), Avoro Capital Advisors LLC ($2.86M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($2.77M), 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 48,663,387 shares in the last 24 months. This purchase volume represents approximately $2.84B in transactions.

Of the 121 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 15,386,575 shares in the last 24 months. This volume of shares sold represents approximately $809.65M 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 8/10/2026. New 13F filings are added each quarter as they're published.
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