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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
Arrowstreet Capital
26
Arrowstreet Capital
Massachusetts
$40.6M +$7.25M +241,897 +20%
ACA
27
Avoro Capital Advisors
New York
$39.2M -$25.2M -840,000 -38%
Fidelity Investments
28
Fidelity Investments
Massachusetts
$37.9M +$1.79M +59,760 +5%
Artisan Partners
29
Artisan Partners
Wisconsin
$37.7M -$22.8M -760,650 -36%
Bank of America
30
Bank of America
North Carolina
$37.3M +$7.09M +236,650 +22%
SCM
31
Soleus Capital Management
Connecticut
$37M +$39.6M +1,322,364 New
Two Sigma Investments
32
Two Sigma Investments
New York
$34M +$16.7M +556,898 +85%
Citadel Advisors
33
Citadel Advisors
Florida
$33.5M +$14.8M +493,434 +70%
Squarepoint
34
Squarepoint
New York
$30.7M +$19.5M +650,540 +146%
Bank of New York Mellon
35
Bank of New York Mellon
New York
$30.1M -$10.5M -350,379 -25%
AAA
36
Affinity Asset Advisors
New York
$28M -$7.49M -250,000 -20%
VRS
37
Virginia Retirement Systems
Virginia
$27.3M +$2.25M +75,150 +8%
Principal Financial Group
38
Principal Financial Group
Iowa
$26.5M +$1.42M +47,293 +5%
PAM
39
Panagora Asset Management
Massachusetts
$26M +$1.25M +41,767 +5%
D.E. Shaw & Co
40
D.E. Shaw & Co
New York
$25.5M +$11.5M +382,523 +72%
DCM
41
Driehaus Capital Management
Illinois
$22.3M -$914K -30,505 -4%
FLSM
42
Frazier Life Sciences Management
California
$19.6M
Balyasny Asset Management
43
Balyasny Asset Management
Illinois
$19M +$20.4M +679,633 New
Pacer Advisors
44
Pacer Advisors
Pennsylvania
$18.9M -$3.99M -133,258 -16%
Public Sector Pension Investment Board (PSP Investments)
45
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$18.8M -$1.18M -39,530 -6%
SBH
46
Segall Bryant & Hamill
Illinois
$17.2M +$564K +18,813 +3%
Barclays
47
Barclays
United Kingdom
$15.8M +$251K +8,382 +2%
Two Sigma Advisers
48
Two Sigma Advisers
New York
$15.7M +$10.7M +357,387 +174%
WP
49
Woodline Partners
California
$15.6M
Invesco
50
Invesco
Georgia
$15.1M -$1.37M -45,577 -8%