Jane Street
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Jane Street’s Alkermes ALKS Stock Holding History

Jane Street’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
Q1 		$308K Sell
8,700
-700
-7% -$21.7K ﹤0.01% 9181
2025
Q4 		$263K Sell
9,400
-101,800
-92% -$3.05M ﹤0.01% 9126
2025
Q3 		$3.34M Buy
+111,200
New +$3.14M ﹤0.01% 4046
2025
Q2 		– Sell
-6,700
Closed -$221K – 9526
2025
Q1 		$221K Buy
+6,700
New +$219K ﹤0.01% 8304
2024
Q4 		– Sell
-7,500
Closed -$210K – 9308
2024
Q3 		$210K Buy
+7,500
New +$200K ﹤0.01% 8579
2024
Q2 		– Sell
-8,500
Closed -$230K – 9265
2024
Q1 		$230K Sell
8,500
-29,100
-77% -$826K ﹤0.01% 7976
2023
Q4 		$1.05M Buy
37,600
+7,900
+27% +$205K ﹤0.01% 5480
2023
Q3 		$832K Sell
29,700
-20,800
-41% -$610K ﹤0.01% 5473
2023
Q2 		$1.58M Sell
50,500
-78,000
-61% -$2.36M ﹤0.01% 4517
2023
Q1 		$3.62M Sell
128,500
-90,500
-41% -$2.47M ﹤0.01% 2881
2022
Q4 		$5.72M Buy
219,000
+97,800
+81% +$2.34M ﹤0.01% 2303
2022
Q3 		$2.71M Sell
121,200
-53,400
-31% -$1.39M ﹤0.01% 3632
2022
Q2 		$5.2M Buy
174,600
+140,900
+418% +$4.05M ﹤0.01% 2608
2022
Q1 		$887K Sell
33,700
-75,200
-69% -$1.86M ﹤0.01% 6373
2021
Q4 		$2.53M Buy
108,900
+60,500
+125% +$1.59M ﹤0.01% 4004
2021
Q3 		$1.49M Buy
48,400
+25,500
+111% +$720K ﹤0.01% 5075
2021
Q2 		$562K Buy
+22,900
New +$509K ﹤0.01% 7019
2016
Q2 		– Sell
-21,700
Closed -$742K – 4016
2016
Q1 		$742K Buy
+21,700
New +$857K ﹤0.01% 2155

Other funds holding ALKS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
CC
Commodore Capital New York $1.73B AUM 298.96% 1-Year Est. Return

Jane Street's ALKS Position: Q1 2026 in Review

Jane Street reduced its Alkermes (ALKS) stake by 91% in Q1 2026, selling an estimated $1.71M and leaving 5,700 shares worth $202K. The position accounts for ﹤0.01% of the portfolio, ranked #10132.

Jane Street first reported a position in ALKS in Q2 2013 and has held it in 38 quarters since. The position peaked at $17.3M in Q1 2025. 389 funds tracked by Wall St. Rank hold ALKS as of Q1 2026.

  • Jane Street held 5,700 shares of Alkermes worth $202K as of Q1 2026.
  • Jane Street sold 55,070 Alkermes shares in Q1 2026, an estimated $1.71M.
  • Alkermes made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10132 holding.
  • Jane Street first reported a position in Alkermes in Q2 2013 and has held it in 38 quarters since.
  • Jane Street's Alkermes position peaked at $17.3M in Q1 2025.
  • 389 funds tracked by Wall St. Rank held Alkermes as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.