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Alkermes

366 hedge funds and large institutions have $5.05B invested in Alkermes in 2025 Q4 according to their latest regulatory filings, with 59 funds opening new positions, 145 increasing their positions, 123 reducing their positions, and 47 closing their positions.

New
Increased
Maintained
Reduced
Closed

26% more first-time investments, than exits

New positions opened: 59 | Existing positions closed: 47

18% more repeat investments, than reductions

Existing positions increased: 145 | Existing positions reduced: 123

6.51% more ownership

Funds ownership: 102.74%109.24% (+6.5%)

2% more funds holding

Funds holding: 358366 (+8)

1% less capital invested

Capital invested by funds: $5.08B → $5.05B (-$32.7M)

67% less funds holding in top 10

Funds holding in top 10: 31 (-2)

74% less call options, than puts

Call options by funds: $5.84M | Put options by funds: $22.4M

Holders
366
Holders Change
+8
Holders Change %
+2.23%
% of All Funds
4.45%
Holding in Top 10
1
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-66.67%
% of All Funds
0.01%
New
59
Increased
145
Reduced
123
Closed
47
Calls
$5.84M
Puts
$22.4M
Net Calls
-$16.5M
Net Calls Change
-$30.3M
Name Holding Trade Value Shares
Change
Change in
Stake
California State Teachers Retirement System (CalSTRS)
101
California State Teachers Retirement System (CalSTRS)
California
$4.16M -$3.48K -116 -0.1%
Janus Henderson Group
102
Janus Henderson Group
United Kingdom
$4.08M -$5.95M -198,686 -58%
TAM
103
TFG Asset Management
Cayman Islands
$3.95M +$1.54M +51,560 +58%
RSCM
104
Rock Springs Capital Management
Maryland
$3.9M +$979K +32,691 +31%
AA
105
ALPS Advisors
Colorado
$3.79M +$1.72M +57,547 +74%
Deutsche Bank
106
Deutsche Bank
Germany
$3.76M -$2.16M -71,961 -35%
RPAM
107
Rhenman & Partners Asset Management
Sweden
$3.73M +$1.18M +39,250 +42%
State Board of Administration of Florida Retirement System
108
State Board of Administration of Florida Retirement System
Florida
$3.68M
DCM
109
DAFNA Capital Management
California
$3.64M -$135K -4,500 -3%
Marshall Wace
110
Marshall Wace
United Kingdom
$3.63M +$3.89M +129,899 New
Focus Partners Wealth
111
Focus Partners Wealth
Massachusetts
$3.47M +$3.72M +124,041 New
Thrivent Financial for Lutherans
112
Thrivent Financial for Lutherans
Minnesota
$3.26M -$169K -5,636 -5%
Manulife (Manufacturers Life Insurance)
113
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$3.18M -$942K -31,459 -22%
Assenagon Asset Management
114
Assenagon Asset Management
Luxembourg
$3.09M +$111K +3,721 +3%
KAM
115
Krensavage Asset Management
New York
$3.02M -$3M -100,000 -48%
HSA
116
Hussman Strategic Advisors
Maryland
$2.94M -$629K -21,000 -17%
SCM
117
Sio Capital Management
New York
$2.67M -$17.4M -579,487 -86%
Los Angeles Capital Management
118
Los Angeles Capital Management
California
$2.66M +$25K +833 +1%
DMKJ
119
David M. Knott Jr
$2.66M +$2.27M +75,700 +392%
Mackenzie Financial
120
Mackenzie Financial
Ontario, Canada
$2.65M -$10.4M -346,903 -78%
State of Wisconsin Investment Board
121
State of Wisconsin Investment Board
Wisconsin
$2.61M -$201K -6,703 -7%
SOADOR
122
State of Alaska Department of Revenue
Alaska
$2.6M +$39.2K +1,310 +1%
IMRF
123
Illinois Municipal Retirement Fund
Illinois
$2.56M -$4.1K -137 -0.1%
OSAM
124
O'Shaughnessy Asset Management
Connecticut
$2.53M -$10.7K -358 -0.4%
Mirae Asset Global ETFs Holdings
125
Mirae Asset Global ETFs Holdings
Hong Kong
$2.44M +$80.3K +2,682 +3%