Arrowhead Pharmaceuticals (ARWR) Institutional Ownership

$84.91 0.00 (0.00%)

Closing price 08/28/2026 04:00 PM Eastern

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$85.60 +0.69 (+0.81%)

As of 07:25 AM Eastern

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Current Institutional Ownership Percentage: 62.61%
Number of Institutional Buyers (last 12 months): 288
Total Institutional Inflows (last 12 months): $3.93B

Number of Institutional Sellers (last 12 months): 110
Total Institutional Outflows (last 12 months): $824.88M

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ARWR Institutional Buying and Selling by Quarter

Arrowhead Pharmaceuticals Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/27/2026	Corient Private Wealth LP	15,769	$1.29M	0.0%	-2.1%	0.011%
8/26/2026	HighTower Advisors LLC	140,394	$11.44M	0.0%	-4.1%	0.100%
8/25/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	43,350	$3.53M	0.0%	N/A	0.031%
8/24/2026	California State Teachers Retirement System	11,397,217	$928.99M	0.0%	+7,797.6%	8.091%
8/23/2026	Washington Trust Advisors Inc.	26,185	$2.13M	0.2%	+3.6%	0.019%
8/22/2026	Compass Financial Management LLC	2,000	$179K	0.0%	N/A	0.001%
8/22/2026	AlphaGrep UK Ltd	4,599	$375K	0.1%	N/A	0.003%
8/22/2026	Syon Capital LLC	2,946	$240K	0.0%	N/A	0.002%
8/22/2026	Concurrent Investment Advisors LLC	2,496	$203K	0.0%	N/A	0.002%
8/21/2026	Nykredit A S	4,500	$367K	0.0%	N/A	0.003%
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8/20/2026	Headlands Technologies LLC	2,595	$212K	0.0%	N/A	0.002%
8/20/2026	Two Sigma Securities LLC	11,256	$917K	0.1%	N/A	0.008%
8/20/2026	Benjamin Edwards Inc.	8,841	$721K	0.0%	N/A	0.006%
8/20/2026	Alyeska Investment Group L.P.	58,722	$4.79M	0.0%	-87.6%	0.042%
8/19/2026	Van ECK Associates Corp	111,500	$9.09M	0.0%	+490.3%	0.079%
8/19/2026	Hsbc Holdings PLC	203,800	$16.77M	0.0%	+34.9%	0.145%
8/19/2026	Wellington Management Group LLP	50,081	$4.08M	0.0%	-8.1%	0.036%
8/19/2026	Archer Investment Corp	500	$41K	0.0%	N/A	0.000%
8/18/2026	Empowered Funds LLC	108,041	$8.81M	0.0%	N/A	0.077%
8/18/2026	Centaurus Financial Inc.	1,774	$145K	0.0%	N/A	0.001%
8/18/2026	Jefferies Financial Group Inc.	4,994	$407K	0.0%	N/A	0.004%
8/18/2026	Public Employees Retirement System of Ohio	38,507	$3.14M	0.0%	N/A	0.027%
8/17/2026	Transamerica Financial Advisors LLC	77,403	$6.31M	0.5%	N/A	0.055%
8/17/2026	Corient Private Wealth LP	16,113	$1.31M	0.0%	N/A	0.011%
8/17/2026	Ausdal Financial Partners Inc.	4,725	$385K	0.0%	N/A	0.003%
8/15/2026	Jupiter Topco LLC	1,221,596	$99.62M	0.0%	N/A	0.867%
8/14/2026	Hsbc Holdings PLC	203,800	$16.77M	0.0%	N/A	0.145%
8/14/2026	Osterweis Capital Management Inc.	50,315	$4.10M	0.2%	N/A	0.036%
8/14/2026	Legal & General Group Plc	237,216	$19.34M	0.0%	N/A	0.168%
8/14/2026	The Manufacturers Life Insurance Company	111,955	$9.13M	0.0%	N/A	0.079%
8/14/2026	Algert Global LLC	38,340	$3.13M	0.0%	-36.1%	0.027%
8/13/2026	Sanctuary Advisors LLC	20,830	$1.70M	0.0%	N/A	0.015%
8/13/2026	Polymer Capital Management HK LTD	36,800	$3M	0.2%	N/A	0.026%
8/13/2026	Connor Clark & Lunn Investment Management Ltd.	625,569	$50.99M	0.1%	N/A	0.444%
8/13/2026	PEAK6 LLC	2,500	$204K	0.0%	N/A	0.002%
8/13/2026	Meiji Yasuda Asset Management Co Ltd.	3,231	$263K	0.0%	N/A	0.002%
8/13/2026	Bank of Nova Scotia	133,805	$10.91M	0.0%	N/A	0.095%
8/12/2026	Compass Financial Management LLC	2,000	$179K	0.0%	N/A	0.001%
8/12/2026	Elevation Point Wealth Partners LLC	16,991	$1.39M	0.0%	N/A	0.012%
8/12/2026	Quantbot Technologies LP	10,831	$883K	0.0%	N/A	0.008%
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8/12/2026	W1M Asset Management Ltd	10,700	$873K	0.0%	N/A	0.008%
8/12/2026	Landscape Capital Management L.L.C.	25,623	$2.09M	0.1%	N/A	0.018%
8/12/2026	EP Wealth Advisors LLC	38,135	$3.11M	0.0%	N/A	0.027%
8/11/2026	Allworth Financial LP	604	$49K	0.0%	N/A	0.000%
8/11/2026	B. Metzler seel. Sohn & Co. AG	26,338	$2.15M	0.0%	N/A	0.019%
8/11/2026	Virtus Advisers LLC	9,249	$754K	0.3%	N/A	0.007%
8/11/2026	Vise Technologies Inc.	4,654	$379K	0.0%	N/A	0.003%
8/11/2026	E Fund Management Co. Ltd.	5,841	$476K	0.0%	N/A	0.004%
8/10/2026	Myecfo LLC	17,497	$1.43M	0.5%	N/A	0.012%
8/7/2026	Citizens Financial Group Inc. RI	3,794	$309K	0.0%	N/A	0.003%
8/7/2026	BlackRock Inc.	14,830,553	$1.21B	0.0%	N/A	10.529%
8/7/2026	Pallas Capital Advisors LLC	4,669	$381K	0.0%	N/A	0.003%
8/7/2026	Deutsche Bank AG	149,240	$12.17M	0.0%	N/A	0.106%
8/7/2026	Mitsubishi UFJ Asset Management Co. Ltd.	3,270	$267K	0.0%	N/A	0.002%
8/7/2026	Persistent Asset Partners Ltd	482	$39K	0.0%	N/A	0.000%
8/7/2026	Wealth Effects LLC	147,300	$12.01M	3.2%	N/A	0.105%
8/6/2026	Global Retirement Partners LLC	5,498	$448K	0.0%	N/A	0.004%
8/6/2026	Bank of New York Mellon Corp	859,538	$70.06M	0.0%	N/A	0.610%
8/6/2026	State of Wyoming	4,175	$340K	0.0%	N/A	0.003%
7/10/2026	Tema ETFs LLC	5,263	$429K	0.0%	-41.3%	0.004%
7/10/2026	Carolina Wealth Advisors LLC	345	$28K	0.0%	+80.6%	0.000%
7/9/2026	Allied Private Wealth LLC	500	$43K	0.0%	N/A	0.000%
7/8/2026	Assenagon Asset Management S.A.	201,927	$16.46M	0.0%	+243.8%	0.143%
7/7/2026	GAMMA Investing LLC	3,879	$316K	0.0%	+15.9%	0.003%
7/7/2026	Harbor Investment Advisory LLC	1,285	$105K	0.0%	N/A	0.001%
7/7/2026	CoreCap Advisors LLC	3,000	$245K	0.0%	N/A	0.002%
7/2/2026	Versant Capital Management Inc	335	$27K	0.0%	+285.1%	0.000%
6/18/2026	Pacer Advisors Inc.	23,922	$1.50M	0.0%	N/A	0.017%
6/16/2026	Empowered Funds LLC	137,220	$8.60M	0.1%	+661.6%	0.097%
6/8/2026	Pine Valley Investments Ltd Liability Co	18,814	$1.18M	0.1%	+1.8%	0.013%
6/3/2026	Parallel Advisors LLC	1,004	$63K	0.0%	+407.1%	0.001%
6/2/2026	Optiver Holding B.V.	408	$26K	0.0%	+83.8%	0.000%
5/22/2026	Summitry LLC	7,183	$450K	0.0%	N/A	0.005%
5/19/2026	Edgestream Partners L.P.	91,997	$5.77M	0.2%	+152.2%	0.065%
5/19/2026	Janus Henderson Group PLC	1,436,990	$90.12M	0.0%	+12.2%	1.020%
5/19/2026	Centaurus Financial Inc.	1,738	$109K	0.0%	N/A	0.001%
5/18/2026	California State Teachers Retirement System	144,313	$9.05M	0.0%	+21.9%	0.102%
5/18/2026	Royal Bank of Canada	61,316	$3.84M	0.0%	+19.8%	0.044%
5/18/2026	Empowered Funds LLC	137,220	$8.60M	0.1%	+661.6%	0.097%
5/18/2026	Exome Asset Management LLC	45,721	$2.87M	1.5%	-8.1%	0.032%
5/16/2026	The Manufacturers Life Insurance Company	160,422	$10.06M	0.0%	+63.4%	0.114%
5/16/2026	Quantinno Capital Management LP	12,790	$802K	0.0%	+6.5%	0.009%
5/15/2026	Affinity Asset Advisors LLC	200,000	$12.54M	0.6%	+185.7%	0.142%
5/15/2026	Entropy Technologies LP	10,620	$666K	0.0%	-60.9%	0.008%
5/14/2026	Renaissance Technologies LLC	1,036,495	$64.99M	0.1%	N/A	0.736%
5/14/2026	Arrowstreet Capital Limited Partnership	587,125	$36.81M	0.0%	-71.9%	0.417%
5/14/2026	Siren L.L.C.	1,615,476	$101.29M	2.8%	+7.7%	1.147%
5/14/2026	Inceptionr LLC	6,791	$426K	0.1%	N/A	0.005%
5/14/2026	Bank of Nova Scotia	135,960	$8.53M	0.0%	N/A	0.097%
5/14/2026	State of Wyoming	4,209	$264K	0.0%	-58.4%	0.003%
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5/13/2026	Cetera Investment Advisers	9,424	$591K	0.0%	+40.7%	0.007%
5/13/2026	First Trust Advisors LP	149,148	$9.35M	0.0%	-37.3%	0.106%
5/8/2026	PNC Financial Services Group Inc.	7,312	$458K	0.0%	-34.1%	0.005%
5/7/2026	WCM Investment Management LLC	171,575	$9.89M	0.0%	+23.5%	0.123%
5/7/2026	Dimensional Fund Advisors LP	608,531	$38.15M	0.0%	+312.8%	0.435%
5/7/2026	Parallel Advisors LLC	1,004	$63K	0.0%	+407.1%	0.001%
5/7/2026	KBC Group NV	3,773	$237K	0.0%	-20.6%	0.003%
5/7/2026	SEB Asset Management AB	158,205	$9.92M	0.0%	N/A	0.113%
5/7/2026	Swiss National Bank	242,000	$15.17M	0.0%	-1.4%	0.173%
5/6/2026	California Public Employees Retirement System	257,133	$16.12M	0.0%	N/A	0.184%

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), California State Teachers Retirement System ($928.99M), Avoro Capital Advisors LLC ($705.39M), State Street Corp ($425.15M), Geode Capital Management LLC ($216.80M), and Baker BROS. Advisors LP ($144.44M).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 365 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), California State Teachers Retirement System ($11.29M), 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), and Arrowstreet Capital Limited Partnership ($2.09M).

Institutional investors have bought a total of 57,558,706 shares in the last 24 months. This purchase volume represents approximately $3.93B in transactions.

Of the 110 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 14,492,896 shares in the last 24 months. This volume of shares sold represents approximately $824.88M 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 8/27/2026. New 13F filings are added each quarter as they're published.

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Arrowhead Pharmaceuticals (ARWR) Institutional Ownership

ARWR Institutional Buying and Selling by Quarter

Arrowhead Pharmaceuticals Major Shareholders & Ownership History

ARWR Institutional Ownership - Frequently Asked Questions

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Arrowhead Pharmaceuticals (ARWR) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Arrowhead Pharmaceuticals (NASDAQ:ARWR)

ARWR Institutional Buying and Selling by Quarter

Arrowhead Pharmaceuticals Major Shareholders & Ownership History

ARWR Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ARWR shares?

What percentage of Arrowhead Pharmaceuticals' stock is owned by institutional investors?

Which institutional investors have been buying Arrowhead Pharmaceuticals' stock?

How much institutional buying is happening at Arrowhead Pharmaceuticals?

Which of Arrowhead Pharmaceuticals' major shareholders have been selling company stock?

How much institutional selling is happening at Arrowhead Pharmaceuticals?

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