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 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 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 Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Commodore Capital New York $1.73B AUM 298.96% 1-Year Est. Return

Rossby Financial's ALKS Position: Q1 2026 in Review

Rossby Financial increased its Alkermes (ALKS) stake by 205% in Q1 2026, buying an estimated $1.33K and bringing the position to 64 shares worth $2.24K. The position accounts for ﹤0.01% of the portfolio, ranked #1777.

Rossby Financial first reported a position in ALKS in Q3 2025 and has held it in 3 quarters since. 388 funds tracked by Wall St. Rank hold ALKS as of Q1 2026.

Rossby Financial held 64 shares of Alkermes worth $2.24K as of Q1 2026.
Rossby Financial bought 43 Alkermes shares in Q1 2026, an estimated $1.33K.
Alkermes made up ﹤0.01% of Rossby Financial's portfolio in Q1 2026, its #1777 holding.
Rossby Financial first reported a position in Alkermes in Q3 2025 and has held it in 3 quarters since.
388 funds tracked by Wall St. Rank held Alkermes as of Q1 2026.

Based on Rossby Financial's 13F filing for Q1 2026, filed 11 May 2026.