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Arrowhead Research

280 hedge funds and large institutions have $1.67B invested in Arrowhead Research in 2025 Q2 according to their latest regulatory filings, with 59 funds opening new positions, 96 increasing their positions, 79 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

1.3% more ownership

Funds ownership: 75.34%76.64% (+1.3%)

22% less call options, than puts

Call options by funds: $8.24M | Put options by funds: $10.6M

40% less funds holding in top 10

Funds holding in top 10: 53 (-2)

Holders
280
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$8.24M
Puts
$10.6M
Net Calls
Net Calls Change

Top Buyers

1 +$36.7M
2 +$33.1M
3 +$29.3M
4
BBA
Baker Bros. Advisors
New York
+$14.8M
5
TI
Trexquant Investment
Connecticut
+$7.96M

Top Sellers

1 -$33.2M
2 -$27M
3 -$14.6M
4
Two Sigma Investments
Two Sigma Investments
New York
-$11.1M
5
State Street
State Street
Massachusetts
-$9.93M
Name Holding Trade Value Shares
Change
Change in
Stake
Thrivent Financial for Lutherans
76
Thrivent Financial for Lutherans
Minnesota
$1.46M
Franklin Resources
77
Franklin Resources
California
$1.28M
PIA
78
Pinion Investment Advisors
Kansas
$1.19M
SOADOR
79
State of Alaska Department of Revenue
Alaska
$1.18M
AA
80
ALPS Advisors
Colorado
$1.18M
EGM
81
Engineers Gate Manager
New York
$1.18M
MIM
82
MetLife Investment Management
New Jersey
$1.14M
Wells Fargo
83
Wells Fargo
California
$1.08M
MCM
84
M28 Capital Management
Connecticut
$1.06M
State of Wisconsin Investment Board
85
State of Wisconsin Investment Board
Wisconsin
$1.02M
Arrowstreet Capital
86
Arrowstreet Capital
Massachusetts
$1.01M
Manulife (Manufacturers Life Insurance)
87
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$1.01M
Citadel Advisors
88
Citadel Advisors
Florida
$983K
BFM
89
Boothbay Fund Management
New York
$979K
IIM
90
INTECH Investment Management
Florida
$956K
BC
91
Bayforest Capital
United Kingdom
$939K
LSERS
92
Louisiana State Employees Retirement System
Louisiana
$927K
Commonwealth Equity Services
93
Commonwealth Equity Services
Massachusetts
$921K
Los Angeles Capital Management
94
Los Angeles Capital Management
California
$916K
Simplex Trading
95
Simplex Trading
Illinois
$905K
ACM
96
ADAR1 Capital Management
Texas
$872K
State of Tennessee, Department of Treasury
97
State of Tennessee, Department of Treasury
Tennessee
$862K
VOYA Investment Management
98
VOYA Investment Management
Georgia
$842K
Luther King Capital Management (LKCM)
99
Luther King Capital Management (LKCM)
Texas
$824K
GC
100
Guggenheim Capital
Illinois
$803K