Alkermes
ALKS
354 hedge funds and large institutions have $4.84B invested in Alkermes in 2025 Q2 according to their latest regulatory filings, with 42 funds opening new positions, 154 increasing their positions, 121 reducing their positions, and 56 closing their positions.
41% more call options, than puts
Call options by funds: $15.5M | Put options by funds: $11M
27% more repeat investments, than reductions
Existing positions increased: 154 | Existing positions reduced: 121
3.33% less ownership
Funds ownership: 105.95% → 102.62% (-3.3%)
5% less funds holding
Funds holding: 373 → 354 (-19)
17% less capital inflows, than outflows
Capital inflows: $421M | Capital outflows: $508M
25% less first-time investments, than exits
New positions opened: 42 | Existing positions closed: 56
33% less funds holding in top 10
Funds holding in top 10: 6 → 4 (-2)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BBA
Baker Bros. Advisors
New York
|
+$57.4M |
| 2 |
Paradigm Biocapital Advisors
New York
|
+$40.9M |
| 3 |
BNP Paribas Financial Markets
Paris,
France
|
+$30M |
| 4 |
Holocene Advisors
New York
|
+$20.2M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
+$19.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RTW Investments
New York
|
-$65.5M |
| 2 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$52M |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$50.6M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
-$41.6M |
| 5 |
Virginia Retirement Systems
Richmond,
Virginia
|
-$31.3M |
ALKS Hedge Fund Activity: Q2 2025 in Review
354 of the 7,625 institutional investors tracked by Wall St. Rank reported a position in Alkermes (ALKS) for Q2 2025, worth a combined $4.84B — down 15% from $5.69B a quarter earlier.
Sellers outnumbered buyers: 56 funds closed out of ALKS and 42 opened new positions — a net loss of 14 holders — while 121 trimmed existing stakes and 154 added.
The largest buyer was Baker Bros. Advisors, adding an estimated $57.4M. The largest seller was RTW Investments, cutting an estimated $65.5M.
- 354 institutional investors held Alkermes (ALKS) as of Q2 2025, down from 373 in Q1 2025.
- Funds reported $4.84B of Alkermes stock for Q2 2025, down 15% quarter-over-quarter.
- 42 funds opened new Alkermes positions in Q2 2025 and 56 closed out, a net change of -14 holders.
- The largest Alkermes buyer in Q2 2025 was Baker Bros. Advisors, an estimated $57.4M added.
- The largest Alkermes seller in Q2 2025 was RTW Investments, an estimated $65.5M sold.
Based on aggregated 13F filings for Q2 2025.