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CenterBook Partners’s Alkermes ALKS Stock Holding History

CenterBook Partners’s Portfolio ALKS Stock Details ALKS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$388K Sell
7,403
-31,222
-81% -$1.22M 0.02% 575
2026
Q1 		$1.37M Buy
+38,625
New +$1.2M 0.07% 301
2025
Q4 		– Sell
-27,928
Closed -$838K – 551
2025
Q3 		$838K Buy
27,928
+6,579
+31% +$186K 0.04% 406
2025
Q2 		$611K Buy
+21,349
New +$635K 0.03% 403

Other funds holding ALKS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return

CenterBook Partners's ALKS Position: Q2 2026 in Review

CenterBook Partners reduced its Alkermes (ALKS) stake by 81% in Q2 2026, selling an estimated $1.22M and leaving 7,403 shares worth $388K. The position accounts for 0.02% of the portfolio, ranked #575.

CenterBook Partners first reported a position in ALKS in Q2 2025 and has held it in 4 quarters since. The position peaked at $1.37M in Q1 2026. 424 funds tracked by Wall St. Rank hold ALKS as of Q2 2026.

  • CenterBook Partners held 7,403 shares of Alkermes worth $388K as of Q2 2026.
  • CenterBook Partners sold 31,222 Alkermes shares in Q2 2026, an estimated $1.22M.
  • Alkermes made up 0.02% of CenterBook Partners's portfolio in Q2 2026, its #575 holding.
  • CenterBook Partners first reported a position in Alkermes in Q2 2025 and has held it in 4 quarters since.
  • CenterBook Partners's Alkermes position peaked at $1.37M in Q1 2026.
  • 424 funds tracked by Wall St. Rank held Alkermes as of Q2 2026.

Based on CenterBook Partners's 13F filing for Q2 2026, filed 11 Aug 2026.