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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 %
Raymond James Financial
51
Raymond James Financial
Florida
$2.68M 169,748 +132,039 +350%
Millennium Management
52
Millennium Management
New York
$2.67M 169,041 -521,755 -76%
WE
53
Wealth Effects
Massachusetts
$2.62M 165,650 -4,900 -3%
AllianceBernstein
54
AllianceBernstein
Tennessee
$2.51M 159,070 +4,300 +3%
PP
55
PDT Partners
New York
$2.42M 152,988 +152,988 New
AQR Capital Management
56
AQR Capital Management
Connecticut
$2.41M 152,351 +111,845 +276%
Prudential Financial
57
Prudential Financial
New Jersey
$2.4M 130,290 +6,335 +5%
Mirae Asset Global ETFs Holdings
58
Mirae Asset Global ETFs Holdings
Hong Kong
$2.39M 151,275 -87,053 -37%
New York State Teachers Retirement System (NYSTRS)
59
New York State Teachers Retirement System (NYSTRS)
New York
$2.35M 148,476 +100 +0.1%
Rafferty Asset Management
60
Rafferty Asset Management
New York
$2.24M 141,925 -50,866 -26%
Citigroup
61
Citigroup
New York
$2.22M 140,786 -186,524 -57%
NICM
62
Neo Ivy Capital Management
New York
$2.18M 138,081 +138,081 New
Two Sigma Investments
63
Two Sigma Investments
New York
$2.11M 133,403 -701,771 -84%
KCM
64
Kornitzer Capital Management
Kansas
$2M 126,510 – –
HighTower Advisors
65
HighTower Advisors
Illinois
$1.96M 123,941 +11,524 +10%
Man Group
66
Man Group
United Kingdom
$1.88M 118,782 +79,683 +204%
Canada Life
67
Canada Life
Manitoba, Canada
$1.84M 116,305 -1,867 -2%
PIM
68
Platinum Investment Management
Australia
$1.75M 111,022 +12,613 +13%
California State Teachers Retirement System (CalSTRS)
69
California State Teachers Retirement System (CalSTRS)
California
$1.64M 103,976 +1,301 +1%
AG
70
Algert Global
California
$1.62M 102,490 +102,490 New
T. Rowe Price Associates
71
T. Rowe Price Associates
Maryland
$1.59M 100,608 +7,419 +8%
OTPPB
72
Ontario Teachers' Pension Plan Board
Ontario, Canada
$1.54M 97,338 +51,569 +113%
EHC
73
Everett Harris & Co
California
$1.49M 94,112 – –
ACM
74
Aquatic Capital Management
Illinois
$1.48M 93,879 -7,452 -7%
Thrivent Financial for Lutherans
75
Thrivent Financial for Lutherans
Minnesota
$1.46M 92,408 -213 -0.2%
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