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Alkermes

371 hedge funds and large institutions have $5.69B invested in Alkermes in 2025 Q1 according to their latest regulatory filings, with 61 funds opening new positions, 128 increasing their positions, 133 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed

110% more first-time investments, than exits

New positions opened: 61 | Existing positions closed: 29

18% more capital invested

Capital invested by funds: $4.81B → $5.69B (+$874M)

8% more funds holding

Funds holding: 343371 (+28)

2.5% more ownership

Funds ownership: 103.45%105.95% (+2.5%)

4% less repeat investments, than reductions

Existing positions increased: 128 | Existing positions reduced: 133

14% less funds holding in top 10

Funds holding in top 10: 76 (-1)

46% less call options, than puts

Call options by funds: $7.68M | Put options by funds: $14.3M

Holders
371
Holders Change
+28
Holders Change %
+8.16%
% of All Funds
4.98%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.08%
New
61
Increased
128
Reduced
133
Closed
29
Calls
$7.68M
Puts
$14.3M
Net Calls
-$6.6M
Net Calls Change
-$9.6M
Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$905M -$14.6M -446,541 -2%
Vanguard Group
2
Vanguard Group
Pennsylvania
$601M -$9.25M -283,511 -2%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$389M -$15.3M -468,202 -4%
State Street
4
State Street
Massachusetts
$265M -$25.8M -792,305 -9%
RI
5
RTW Investments
New York
$227M -$22M -673,137 -9%
Renaissance Technologies
6
Renaissance Technologies
New York
$189M +$8.48M +260,100 +5%
JP Morgan Chase
7
JP Morgan Chase
New York
$173M +$142M +4,345,523 +489%
BBA
8
Baker Bros. Advisors
New York
$148M +$9.83M +301,534 +7%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$130M +$3.95M +121,045 +3%
American Century Companies
10
American Century Companies
Missouri
$114M +$488K +14,967 +0.4%
Wellington Management Group
11
Wellington Management Group
Massachusetts
$102M -$128M -3,915,604 -56%
UBS Group
12
UBS Group
Switzerland
$100M +$88.8M +2,723,284 +851%
Primecap Management
13
Primecap Management
California
$99.2M -$2.98M -91,415 -3%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$98.8M -$930K -28,503 -0.9%
ACA
15
Avoro Capital Advisors
New York
$80.9M
Loomis, Sayles & Company
16
Loomis, Sayles & Company
Massachusetts
$80.6M +$4.48M +137,378 +6%
Holocene Advisors
17
Holocene Advisors
New York
$71.8M +$62.5M +1,916,699 +743%
Morgan Stanley
18
Morgan Stanley
New York
$71.4M +$11.2M +344,604 +19%
Charles Schwab
19
Charles Schwab
California
$67.6M -$703K -21,558 -1%
N
20
Nuveen
North Carolina
$66.7M +$11.7M +359,847 +22%
CC
21
Commodore Capital
New York
$64.4M -$11.4M -350,000 -15%
Norges Bank
22
Norges Bank
Norway
$63.3M -$1.77M -54,395 -3%
Northern Trust
23
Northern Trust
Illinois
$62M -$1.15M -35,242 -2%
Bank of New York Mellon
24
Bank of New York Mellon
New York
$55.8M -$14.6M -446,395 -21%
Artisan Partners
25
Artisan Partners
Wisconsin
$54M -$11.5M -352,527 -18%

ALKS Hedge Fund Activity: Q1 2025 in Review

371 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Alkermes (ALKS) for Q1 2025, worth a combined $5.69B — up 18% from $4.81B a quarter earlier.

Buyers outnumbered sellers: 61 funds opened new ALKS positions and 29 closed out — a net gain of 32 holders — while 128 added to existing stakes and 133 trimmed.

The largest buyer was JP Morgan Chase, adding an estimated $142M. The largest seller was Wellington Management Group, cutting an estimated $128M.

  • 371 institutional investors held Alkermes (ALKS) as of Q1 2025, up from 343 in Q4 2024.
  • Funds reported $5.69B of Alkermes stock for Q1 2025, up 18% quarter-over-quarter.
  • 61 funds opened new Alkermes positions in Q1 2025 and 29 closed out, a net change of +32 holders.
  • The largest Alkermes buyer in Q1 2025 was JP Morgan Chase, an estimated $142M added.
  • The largest Alkermes seller in Q1 2025 was Wellington Management Group, an estimated $128M sold.

Based on aggregated 13F filings for Q1 2025.