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Alkermes

388 hedge funds and large institutions have $6.2B invested in Alkermes in 2026 Q1 according to their latest regulatory filings, with 75 funds opening new positions, 121 increasing their positions, 148 reducing their positions, and 46 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more funds holding in top 10

Funds holding in top 10: 13 (+2)

63% more first-time investments, than exits

New positions opened: 75 | Existing positions closed: 46

23% more capital invested

Capital invested by funds: $5.05B → $6.2B (+$1.15B)

6% more funds holding

Funds holding: 366388 (+22)

10% more call options, than puts

Call options by funds: $12.1M | Put options by funds: $11M

3.49% less ownership

Funds ownership: 109.24%105.75% (-3.5%)

18% less repeat investments, than reductions

Existing positions increased: 121 | Existing positions reduced: 148

Holders
388
Holders Change
+22
Holders Change %
+6.01%
% of All Funds
4.78%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.04%
New
75
Increased
121
Reduced
148
Closed
46
Calls
$12.1M
Puts
$11M
Net Calls
+$1.09M
Net Calls Change
+$17.6M
Name Holding Trade Value Shares
Change
Change in
Stake
SCI
76
S&CO Inc
Massachusetts
$8.65M +$1.33M +43,000 +21%
PCM
77
Peregrine Capital Management
Minnesota
$8.63M -$320K -10,326 -4%
Capital Fund Management (CFM)
78
Capital Fund Management (CFM)
France
$8.59M +$2.86M +92,268 +61%
PAI
79
Palo Alto Investors
California
$8.58M
BNP Paribas Asset Management
80
BNP Paribas Asset Management
France
$8.47M -$45.4K -1,462 -0.6%
EHI
81
Eagle Health Investments
Connecticut
$8.44M +$4.87M +156,873 +192%
SIG
82
Senator Investment Group
New York
$8.32M +$7.29M +235,000 New
HP
83
HealthInvest Partners
Sweden
$8.24M
Acadian Asset Management
84
Acadian Asset Management
Massachusetts
$8.05M -$9.13M -294,158 -56%
Robeco Institutional Asset Management
85
Robeco Institutional Asset Management
Netherlands
$7.8M -$2.02M -65,149 -23%
EGM
86
Engineers Gate Manager
New York
$7.37M +$4.99M +160,766 +337%
AllianceBernstein
87
AllianceBernstein
Tennessee
$7.3M +$1.4M +45,081 +21%
ECM
88
ExodusPoint Capital Management
New York
$7.22M +$6.34M +204,324 New
Neuberger Berman Group
89
Neuberger Berman Group
New York
$6.97M +$1.38M +44,448 +29%
MAM
90
Martingale Asset Management
Massachusetts
$6.89M +$760K +24,499 +14%
RSCM
91
Rock Springs Capital Management
Maryland
$6.51M +$1.39M +44,758 +32%
California State Teachers Retirement System (CalSTRS)
92
California State Teachers Retirement System (CalSTRS)
California
$6.5M +$1.09M +35,002 +24%
Franklin Resources
93
Franklin Resources
California
$6.45M -$319K -10,272 -5%
SG Americas Securities
94
SG Americas Securities
New York
$6.33M +$4.44M +143,121 +399%
Universal-Beteiligungs- und Servicegesellschaft
95
Universal-Beteiligungs- und Servicegesellschaft
Germany
$6.31M -$499K -16,075 -8%
Barclays
96
Barclays
United Kingdom
$6.19M -$12.1M -390,050 -69%
Hudson Bay Capital Management
97
Hudson Bay Capital Management
Connecticut
$6.14M +$5.39M +173,626 New
Rafferty Asset Management
98
Rafferty Asset Management
New York
$5.74M -$1.27M -40,840 -20%
TAM
99
TFG Asset Management
Cayman Islands
$5.65M +$578K +18,619 +13%
MCM
100
Moore Capital Management
New York
$5.6M +$4.92M +158,499 New