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Sio Capital Management’s Alkermes ALKS Stock Holding History

Sio Capital Management’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 		– Sell
-95,353
Closed -$2.67M – 77
2025
Q4 		$2.67M Sell
95,353
-579,487
-86% -$17.4M 0.42% 44
2025
Q3 		$20.2M Buy
+674,840
New +$19M 5.12% 5
2020
Q2 		– Sell
-170,042
Closed -$2.45M – 79
2020
Q1 		$2.45M Buy
+170,042
New +$3.04M 0.82% 32

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

Sio Capital Management's ALKS Position: Q1 2026 in Review

Sio Capital Management sold out of Alkermes (ALKS) in Q1 2026, closing a stake of 95,353 shares — an estimated $2.67M sold.

Sio Capital Management first reported a position in ALKS in Q1 2020 and held it in 3 quarters. The position peaked at $20.2M in Q3 2025. 388 funds tracked by Wall St. Rank hold ALKS as of Q1 2026.

  • Sio Capital Management reported no remaining Alkermes position as of Q1 2026 after selling out during the quarter.
  • Sio Capital Management sold 95,353 Alkermes shares in Q1 2026, an estimated $2.67M.
  • Sio Capital Management first reported a position in Alkermes in Q1 2020 and held it in 3 quarters.
  • Sio Capital Management's Alkermes position peaked at $20.2M in Q3 2025.
  • 388 funds tracked by Wall St. Rank held Alkermes as of Q1 2026.

Based on Sio Capital Management's 13F filing for Q1 2026, filed 14 May 2026.