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
Q2 		$14.2M Buy
270,800
+259,000
+2,195% +$10.1M ﹤0.01% 2456
2026
Q1 		$417K Sell
11,800
-22,300
-65% -$692K ﹤0.01% 8472
2025
Q4 		$954K Sell
34,100
-15,300
-31% -$458K ﹤0.01% 6220
2025
Q3 		$1.48M Buy
+49,400
New +$1.39M ﹤0.01% 5491
2025
Q1 		– Sell
-14,000
Closed -$403K – 9330
2024
Q4 		$403K Buy
+14,000
New +$402K ﹤0.01% 7224
2024
Q3 		– Sell
-11,300
Closed -$272K – 9509
2024
Q2 		$272K Buy
+11,300
New +$277K ﹤0.01% 7950
2024
Q1 		– Sell
-7,600
Closed -$211K – 9115
2023
Q4 		$211K Sell
7,600
-23,800
-76% -$618K ﹤0.01% 8142
2023
Q3 		$880K Sell
31,400
-10,400
-25% -$305K ﹤0.01% 5382
2023
Q2 		$1.31M Buy
41,800
+3,800
+10% +$115K ﹤0.01% 4799
2023
Q1 		$1.07M Buy
38,000
+12,500
+49% +$341K ﹤0.01% 4871
2022
Q4 		$666K Buy
25,500
+300
+1% +$7.18K ﹤0.01% 5654
2022
Q3 		$563K Sell
25,200
-38,900
-61% -$1.01M ﹤0.01% 6471
2022
Q2 		$1.91M Buy
64,100
+44,300
+224% +$1.27M ﹤0.01% 4253
2022
Q1 		$521K Sell
19,800
-2,400
-11% -$59.4K ﹤0.01% 7395
2021
Q4 		$516K Buy
22,200
+2,100
+10% +$55.2K ﹤0.01% 7210
2021
Q3 		$620K Sell
20,100
-12,500
-38% -$353K ﹤0.01% 6869
2021
Q2 		$799K Buy
+32,600
New +$725K ﹤0.01% 6321
2020
Q2 		– Sell
-100,000
Closed -$1.44M – 7024
2020
Q1 		$1.44M Buy
+100,000
New +$1.79M ﹤0.01% 2366
2016
Q1 		– Sell
-3,200
Closed -$254K – 4016
2015
Q4 		$254K Buy
+3,200
New +$224K ﹤0.01% 3305

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

Jane Street's ALKS Position: Q2 2026 in Review

Jane Street increased its Alkermes (ALKS) stake by 75% in Q2 2026, buying an estimated $168K and bringing the position to 9,990 shares worth $523K. The position accounts for ﹤0.01% of the portfolio, ranked #7898.

Jane Street first reported a position in ALKS in Q2 2013 and has held it in 39 quarters since. The position peaked at $17.3M in Q1 2025. 424 funds tracked by Wall St. Rank hold ALKS as of Q2 2026.

  • Jane Street held 9,990 shares of Alkermes worth $523K as of Q2 2026.
  • Jane Street bought 4,290 Alkermes shares in Q2 2026, an estimated $168K.
  • Alkermes made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #7898 holding.
  • Jane Street first reported a position in Alkermes in Q2 2013 and has held it in 39 quarters since.
  • Jane Street's Alkermes position peaked at $17.3M in Q1 2025.
  • 424 funds tracked by Wall St. Rank held Alkermes as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.