Rossby Financial
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Rossby Financial’s Alkermes ALKS Stock Holding History

Rossby Financial’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
Q3 		$2.59K Hold
64
– – ﹤0.01% 1961
2026
Q2 		$3.35K Hold
64
– – ﹤0.01% 1589
2026
Q1 		$2.24K Buy
64
+43
+205% +$1.33K ﹤0.01% 1777
2025
Q4 		$588 Hold
21
– – ﹤0.01% 1612
2025
Q3 		$644 Buy
+21
New +$592 ﹤0.01% 1340

Other funds holding ALKS

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Renaissance Technologies
Renaissance Technologies New York $73.4B AUM 32.8% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $161B AUM 86.05% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 38.25% 1-Year Est. Return

Rossby Financial's ALKS Position: Q3 2026 in Review

Rossby Financial held its Alkermes (ALKS) position steady in Q3 2026 at 64 shares worth $2.59K. The position accounts for ﹤0.01% of the portfolio, ranked #1961.

Rossby Financial first reported a position in ALKS in Q3 2025 and has held it in 5 quarters since. The position peaked at $3.35K in Q2 2026. 312 funds tracked by Wall St. Rank hold ALKS as of Q3 2026.

  • Rossby Financial held 64 shares of Alkermes worth $2.59K as of Q3 2026.
  • Rossby Financial left its Alkermes share count unchanged in Q3 2026.
  • Alkermes made up ﹤0.01% of Rossby Financial's portfolio in Q3 2026, its #1961 holding.
  • Rossby Financial first reported a position in Alkermes in Q3 2025 and has held it in 5 quarters since.
  • Rossby Financial's Alkermes position peaked at $3.35K in Q2 2026.
  • 312 funds tracked by Wall St. Rank held Alkermes as of Q3 2026.

Based on Rossby Financial's 13F filing for Q3 2026, filed 5 Nov 2026.