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Alkermes

363 hedge funds and large institutions have $5.05B invested in Alkermes in 2025 Q4 according to their latest regulatory filings, with 57 funds opening new positions, 144 increasing their positions, 123 reducing their positions, and 46 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more ownership

Funds ownership:

more funds holding

Funds holding:

1% less capital invested

Capital invested by funds: $5.08B → $5.05B (-$33.2M)

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
363
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$5.84M
Puts
$22.4M
Net Calls
Net Calls Change

Top Buyers

1 +$79.2M
2 +$59.9M
3 +$57.5M
4
UBS Group
UBS Group
Switzerland
+$53.6M
5
American Century Companies
American Century Companies
Missouri
+$46.7M

Top Sellers

1 -$74.1M
2 -$51.6M
3 -$37.1M
4
ACA
Avoro Capital Advisors
New York
-$25.2M
5
Artisan Partners
Artisan Partners
Wisconsin
-$22.8M
Name Holding Trade Value Shares
Change
Change in
Stake
SOW
226
State of Wyoming
Wyoming
$485K
Aviva
227
Aviva
United Kingdom
$474K
TAM
228
Todd Asset Management
Kentucky
$471K
X
229
Xponance
Pennsylvania
$443K
FDP
230
Financiere des Professionnels
Quebec, Canada
$437K
OAC
231
OMERS Administration Corp
Ontario, Canada
$417K
Susquehanna International Group
232
Susquehanna International Group
Pennsylvania
$416K
BFG
233
Bleakley Financial Group
New Jersey
$412K
Bank of Montreal
234
Bank of Montreal
Ontario, Canada
$402K
AG
235
Algert Global
California
$401K
VPIM
236
Vanguard Personalized Indexing Management
California
$395K
SLAM
237
Swiss Life Asset Management
$387K
MF
238
Magnetar Financial
Illinois
$383K
HighTower Advisors
239
HighTower Advisors
Illinois
$378K
Sumitomo Mitsui Trust Group
240
Sumitomo Mitsui Trust Group
Japan
$374K
AIP
241
Ameritas Investment Partners
Nebraska
$369K
QCG
242
Quadrant Capital Group
Ohio
$362K
CGH
243
Crossmark Global Holdings
Texas
$355K
XT
244
XTX Topco
Cayman Islands
$345K
Carson Wealth (CWM LLC)
245
Carson Wealth (CWM LLC)
Nebraska
$343K
SA
246
Sanctuary Advisors
Indiana
$340K
AAM
247
Advisors Asset Management
Colorado
$340K
Daiwa Securities Group
248
Daiwa Securities Group
Japan
$329K
Walleye Trading
249
Walleye Trading
New York
$323K
CWM
250
CIBC World Markets
New York
$300K