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Arrowhead Research
ARWR

Overview Fund Activity

279 hedge funds and large institutions have $1.67B invested in Arrowhead Research in 2025 Q2 according to their latest regulatory filings, with 58 funds opening new positions, 96 increasing their positions, 79 reducing their positions, and 38 closing their positions.

Holders
279
Holders Change
+18
Holders Change %
+6.9%
% of All Funds
3.74%
Holding in Top 10
3
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-40%
% of All Funds
0.04%
New
58
Increased
96
Reduced
79
Closed
38
Calls
$8.24M
Puts
$10.6M
Net Calls
-$2.33M
Net Calls Change
-$746K

Top Buyers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$245M
2
Marshall Wace
2
Marshall Wace
United Kingdom
$34.1M
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$81.7M
4
BBA
4
Baker Bros. Advisors
New York
$14.8M
5
TI
5
Trexquant Investment
Connecticut
$7.96M

Top Sellers

1
UBS AM
1
UBS AM
Illinois
$42.4M
2
T. Rowe Price Investment Management
2
T. Rowe Price Investment Management
Maryland
$13M
3
Citadel Advisors
3
Citadel Advisors
Florida
$983K
4
Two Sigma Investments
4
Two Sigma Investments
New York
$2.11M
5
State Street
5
State Street
Massachusetts
$101M
Name Holding Trade Value Shares
Change 		Shares
Change %
PA
126
Profund Advisors
Maryland
$535K -$156K -9,857 -23%
BNP Paribas Financial Markets
127
BNP Paribas Financial Markets
France
$534K -$774K -48,999 -59%
Zurich Cantonal Bank
128
Zurich Cantonal Bank
Switzerland
$530K -$1.25K -79 -0.2%
TRSOTSOK
129
Teachers Retirement System of the State of Kentucky
Kentucky
$520K -$31.4K -1,987 -6%
A
130
AlphaQuest
New York
$515K +$513K +32,475 +30,637%
COPPSERS
131
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$510K +$33K +2,089 +7%
ProShare Advisors
132
ProShare Advisors
Maryland
$508K -$27.7K -1,751 -5%
ASRS
133
Arizona State Retirement System
Arizona
$506K -$648 -41 -0.1%
ORI
134
Oak Ridge Investments
Illinois
$504K -$28.6K -1,808 -5%
YIH
135
Y-Intercept (HK)
Hong Kong
$491K +$491K +31,105 New
EP
136
Edgestream Partners
New Jersey
$487K -$4.34M -274,703 -90%
Edgewood Management
137
Edgewood Management
Connecticut
$474K – – –
State Board of Administration of Florida Retirement System
138
State Board of Administration of Florida Retirement System
Florida
$470K – – –
Teacher Retirement System of Texas
139
Teacher Retirement System of Texas
Texas
$468K -$8.12K -514 -2%
OPERF
140
Oregon Public Employees Retirement Fund
Oregon
$452K -$4.74K -300 -1%
CUAMC
141
China Universal Asset Management Company
China
$438K +$38.6K +2,444 +10%
PFSRSONJ
142
Police & Firemen's Retirement System of New Jersey
New Jersey
$432K +$30.4K +1,925 +8%
Amundi
143
Amundi
France
$426K +$336K +19,867 +373%
Assenagon Asset Management
144
Assenagon Asset Management
Luxembourg
$404K +$45.3K +2,868 +13%
Bank of Montreal
145
Bank of Montreal
Ontario, Canada
$394K +$76.1K +4,818 +24%
KK
146
KLP Kapitalforvaltning
Norway
$384K +$19K +1,200 +5%
GCM
147
Graham Capital Management
Connecticut
$380K +$380K +24,063 New
Verition Fund Management
148
Verition Fund Management
Connecticut
$369K -$1.45M -91,898 -80%
SPA
149
Sherbrooke Park Advisers
New York
$359K +$359K +22,712 New
Jane Street
150
Jane Street
New York
$351K -$279K -17,639 -44%
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6
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