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Arrowhead Research
ARWR

Overview Fund Activity

277 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, 95 increasing their positions, 79 reducing their positions, and 37 closing their positions.

Holders
277
Holders Change
+16
Holders Change %
+6.13%
% of All Funds
3.72%
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
95
Reduced
79
Closed
37
Calls
$7.07M
Puts
$10M
Net Calls
-$2.98M
Net Calls Change
-$1.39M

Top Buyers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$245M
2
Marshall Wace
2
Marshall Wace
United Kingdom
$34.1M
3
Norges Bank
3
Norges Bank
Norway
$30.4M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$81.7M
5
BBA
5
Baker Bros. Advisors
New York
$14.8M

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 Market Value Shares Shares
Change 		Shares
Change %
Principal Financial Group
26
Principal Financial Group
Iowa
$9.84M 623,097 -5,978 -1%
TI
27
Trexquant Investment
Connecticut
$7.96M 503,654 +503,654 New
SSA
28
Schonfeld Strategic Advisors
New York
$7.62M 482,055 +429,435 +816%
Fisher Asset Management
29
Fisher Asset Management
Washington
$7.14M 451,655 -31,598 -7%
Public Sector Pension Investment Board (PSP Investments)
30
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$6.77M 428,386 +28,516 +7%
Barclays
31
Barclays
United Kingdom
$6.47M 409,603 +179,465 +78%
JPMorgan Chase & Co
32
JPMorgan Chase & Co
New York
$6.44M 407,644 -80,027 -16%
Legal & General Group
33
Legal & General Group
United Kingdom
$6.44M 407,341 +12,227 +3%
Royal Bank of Canada
34
Royal Bank of Canada
Ontario, Canada
$6.32M 400,210 +354,971 +785%
Two Sigma Advisers
35
Two Sigma Advisers
New York
$6.19M 391,800 -332,000 -46%
ClearBridge Investments
36
ClearBridge Investments
New York
$6.02M 380,886 -78,968 -17%
Dimensional Fund Advisors
37
Dimensional Fund Advisors
Texas
$5.79M 366,711 +366,711 New
RhumbLine Advisers
38
RhumbLine Advisers
Massachusetts
$5.69M 359,997 +14,018 +4%
NL
39
Nuveen LLC
North Carolina
$4.9M 310,354 -27,524 -8%
Pictet Asset Management
40
Pictet Asset Management
Switzerland
$4.45M 277,333 -10,697 -4%
SAM
41
Silvercrest Asset Management
New York
$4.43M 280,177 +428 +0.2%
Ameriprise
42
Ameriprise
Minnesota
$4.22M 267,027 -19,204 -7%
Hudson Bay Capital Management
43
Hudson Bay Capital Management
Connecticut
$4.11M 260,000 +46,870 +22%
JJ
44
Johnson & Johnson
New Jersey
$3.98M 247,598 – –
Deutsche Bank
45
Deutsche Bank
Germany
$3.72M 235,446 -14,543 -6%
Capital Fund Management (CFM)
46
Capital Fund Management (CFM)
France
$3.58M 226,365 +63,219 +39%
Nordea Investment Management
47
Nordea Investment Management
Sweden
$3.49M 213,345 +82,473 +63%
PA
48
Pinnacle Associates
New York
$3.34M 211,561 +70,399 +50%
Swiss National Bank
49
Swiss National Bank
Switzerland
$3.31M 209,800 -7,100 -3%
SFM
50
Sphera Funds Management
Israel
$3.21M 202,996 -74,554 -27%
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