Arrowhead Pharmaceuticals (ARWR) Institutional Ownership

$74.15 +3.42 (+4.84%)

As of 11:42 AM Eastern

Current Institutional Ownership Percentage: 62.61%
Number of Institutional Buyers (last 12 months): 281
Total Institutional Inflows (last 12 months): $1.52B

Number of Institutional Sellers (last 12 months): 124
Total Institutional Outflows (last 12 months): $814.16M

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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
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%
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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%
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%
5/6/2026	Assetmark Inc.	2,470	$155K	0.0%	+896.0%	0.002%
5/6/2026	Bessemer Group Inc.	79,140	$4.96M	0.0%	+52.8%	0.057%
5/6/2026	Allspring Global Investments Holdings LLC	55,179	$3.47M	0.0%	+658.3%	0.039%
5/6/2026	Independent Financial Group LLC	14,125	$886K	0.0%	N/A	0.010%
5/5/2026	Beaumont Financial Advisors LLC	10,240	$642K	0.0%	-1.4%	0.007%
5/5/2026	Bank of New York Mellon Corp	960,144	$60.20M	0.0%	+8.1%	0.686%
5/5/2026	Three Seasons Wealth LLC	9,315	$584K	0.2%	N/A	0.007%
5/4/2026	State of Michigan Retirement System	33,700	$2.11M	0.0%	N/A	0.024%
5/4/2026	Principal Financial Group Inc.	490,122	$30.73M	0.0%	-31.5%	0.350%
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5/4/2026	Teachers Retirement System of The State of Kentucky	43,261	$2.71M	0.0%	+24.4%	0.031%
5/2/2026	International Assets Investment Management LLC	3,413	$215K	0.0%	N/A	0.002%
5/1/2026	Commonwealth of Pennsylvania Public School Empls Retrmt SYS	35,086	$2.20M	0.0%	+2.5%	0.025%
5/1/2026	Fifth Third Bancorp	33,447	$2.10M	0.0%	+2,648.3%	0.024%
4/30/2026	Hsbc Holdings PLC	151,046	$9.45M	0.0%	N/A	0.108%
4/30/2026	First Horizon Corp	654	$41K	0.0%	+36.3%	0.000%
4/30/2026	Capstone Capital Management Ltd	15,740	$987K	1.0%	N/A	0.011%
4/30/2026	Oregon Public Employees Retirement Fund	28,700	$1.80M	0.0%	-9.2%	0.020%
4/28/2026	Abel Hall LLC	7,910	$496K	0.1%	-10.3%	0.006%
4/28/2026	QRG Capital Management Inc.	4,493	$282K	0.0%	-22.0%	0.003%
4/27/2026	World Investment Advisors	3,716	$233K	0.0%	-66.2%	0.003%
4/27/2026	New York State Teachers Retirement System	124,853	$7.83M	0.0%	-16.6%	0.089%
4/27/2026	Sierra Summit Advisors LLC	14,353	$900K	0.1%	N/A	0.010%
4/27/2026	Private Advisor Group LLC	15,426	$967K	0.0%	+43.3%	0.011%
4/27/2026	Elevation Point Wealth Partners LLC	11,977	$751K	0.0%	N/A	0.009%
4/27/2026	Fideuram Intesa Sanpaolo Private Banking S.P.A.	44,045	$2.76M	0.1%	+14.0%	0.031%
4/25/2026	Strs Ohio	32,500	$2.04M	0.0%	+3.2%	0.023%
4/23/2026	Inspire Investing LLC	1,709	$107K	0.0%	N/A	0.001%
4/22/2026	DDFG Inc	10,728	$673K	0.1%	-27.2%	0.008%
4/22/2026	Janney Montgomery Scott LLC	4,296	$269K	0.0%	N/A	0.003%
4/22/2026	Pictet Asset Management Holding SA	1,273,266	$79.61M	0.1%	+23.8%	0.909%
4/21/2026	Louisiana State Employees Retirement System	40,600	$2.55M	0.0%	N/A	0.029%
4/20/2026	OP Asset Management Ltd	10,842	$680K	0.0%	N/A	0.008%
4/20/2026	Assenagon Asset Management S.A.	58,735	$3.68M	0.0%	-91.4%	0.042%
4/16/2026	Diversified Trust Co	34,553	$2.17M	0.0%	N/A	0.025%
3/17/2026	Rockefeller Capital Management L.P.	557	$37K	0.0%	-37.4%	0.000%
3/13/2026	World Investment Advisors	10,987	$729K	0.0%	-20.3%	0.008%
3/9/2026	Corient Private Wealth LLC	18,226	$1.21M	0.0%	+3.1%	0.013%
3/3/2026	Bank of Hawaii	19,218	$1.28M	0.1%	N/A	0.014%
2/19/2026	Invesco Ltd.	547,758	$36.37M	0.0%	+8.9%	0.391%
2/19/2026	Corient Private Wealth LLC	18,226	$1.21M	0.0%	+3.1%	0.013%
2/18/2026	Mercer Global Advisors Inc. ADV	5,300	$352K	0.0%	N/A	0.004%
2/18/2026	Summit Global Investments	14,287	$949K	0.1%	+43.8%	0.010%
2/18/2026	State of Tennessee Department of Treasury	55,642	$3.86M	0.0%	+2.0%	0.040%
2/18/2026	EP Wealth Advisors LLC	38,683	$2.57M	0.0%	N/A	0.028%
2/18/2026	Mackenzie Financial Corp	11,445	$768K	0.0%	+12.5%	0.008%
2/18/2026	Empowered Funds LLC	18,018	$1.20M	0.0%	+4.5%	0.013%
2/18/2026	Voloridge Investment Management LLC	288,511	$19.15M	0.1%	-28.3%	0.206%
2/18/2026	VestGen Advisors LLC	12,312	$817K	0.0%	N/A	0.009%
2/18/2026	Vestal Point Capital LP	900,000	$59.75M	2.0%	N/A	0.643%
2/18/2026	Virtus Investment Advisers LLC	9,749	$647K	0.2%	+39.0%	0.007%
2/18/2026	Wellington Management Group LLP	47,473	$3.15M	0.0%	-4.0%	0.034%
2/18/2026	RTW Investments LP	584,716	$38.82M	0.4%	N/A	0.418%
2/18/2026	Oxford Asset Management LLP	16,026	$1.06M	0.4%	+11.3%	0.011%
2/18/2026	Millennium Management LLC	45,018	$2.99M	0.0%	-59.0%	0.032%
2/18/2026	Man Group plc	11,552	$767K	0.0%	N/A	0.008%
2/18/2026	Janus Henderson Group PLC	1,280,446	$85.00M	0.0%	+31.5%	0.914%
2/18/2026	Gotham Asset Management LLC	56,273	$3.74M	0.0%	+76.6%	0.040%
2/18/2026	Engineers Gate Manager LP	19,772	$1.31M	0.0%	N/A	0.014%
2/18/2026	Cinctive Capital Management LP	16,110	$1.07M	0.1%	N/A	0.012%
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2/18/2026	Balyasny Asset Management L.P.	376,216	$24.98M	0.0%	-52.6%	0.269%
2/18/2026	Baker BROS. Advisors LP	2,175,645	$144.44M	0.8%	+30.2%	1.554%
2/18/2026	Boothbay Fund Management LLC	40,504	$2.69M	0.0%	-51.4%	0.029%
2/18/2026	ACT Capital Management LLC	75,000	$4.98M	4.0%	N/A	0.054%
2/17/2026	Guggenheim Capital LLC	56,644	$3.76M	0.0%	+40.3%	0.040%
2/17/2026	ADAR1 Capital Management LLC	58,200	$3.86M	0.3%	+16.9%	0.042%
2/17/2026	Schonfeld Strategic Advisors LLC	20,105	$1.34M	0.0%	-96.3%	0.014%
2/17/2026	PDT Partners LLC	70,048	$4.65M	0.3%	-22.9%	0.050%
2/17/2026	AQR Capital Management LLC	147,353	$9.78M	0.0%	+3.2%	0.105%
2/17/2026	Abel Hall LLC	8,819	$585K	0.1%	N/A	0.006%

ARWR Institutional Ownership - Frequently Asked Questions

During the previous two years, 381 institutional investors and hedge funds held shares of Arrowhead Pharmaceuticals. The most heavily invested institutionals were 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), Fred Alger Management LLC ($121.69M), and Norges Bank ($113.16M).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 342 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: 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), Fred Alger Management LLC ($1.83M), and Vanguard Group Inc. ($1.53M).

Institutional investors have bought a total of 32,932,449 shares in the last 24 months. This purchase volume represents approximately $1.52B in transactions.

Of the 124 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), Aberdeen Group plc ($786.68K), Vanguard Group Inc. ($742.75K), and UBS Group AG ($682.41K).

Institutional investors have sold a total of 15,691,575 shares in the last 24 months. This volume of shares sold represents approximately $814.16M in transactions.

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This page (NASDAQ:ARWR) was last updated on 6/11/2026 by MarketBeat.com Staff.

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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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