RTW Investments’s Alkermes ALKS Stock Holding History

RTW Investments’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	$87.6M	Hold	1,672,356	–	–	0.75%	37
2026 Q1	$59.1M	Hold	1,672,356	–	–	0.59%	41
2025 Q4	$46.8M	Hold	1,672,356	–	–	0.47%	49
2025 Q3	$50.2M	Sell	1,672,356 -3,009,933	-64%	-$84.9M	0.62%	38
2025 Q2	$134M	Sell	4,682,289 -2,202,409	-32%	-$65.5M	1.91%	18
2025 Q1	$227M	Sell	6,884,698 -673,137	-9%	-$22M	3.48%	11
2024 Q4	$217M	Buy	7,557,835 +903,802	+14%	+$26M	3.29%	8
2024 Q3	$186M	Sell	6,654,033 -402,955	-6%	-$10.7M	2.69%	16
2024 Q2	$170M	Buy	7,056,988 +1,002,708	+17%	+$24.6M	2.63%	15
2024 Q1	$164M	Buy	6,054,280 +2,152,757	+55%	+$61.1M	2.42%	15
2023 Q4	$108M	Buy	3,901,523 +3,012,450	+339%	+$78.3M	1.69%	22
2023 Q3	$24.9M	Buy	+889,073	New	+$26.1M	0.53%	35

Other funds holding ALKS

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 Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

RTW Investments's ALKS Position: Q2 2026 in Review

RTW Investments held its Alkermes (ALKS) position steady in Q2 2026 at 1,672,356 shares worth $87.6M. The position accounts for 0.75% of the portfolio, ranked #37.

RTW Investments first reported a position in ALKS in Q3 2023 and has held it in 12 quarters since. The position peaked at $227M in Q1 2025. 424 funds tracked by Wall St. Rank hold ALKS as of Q2 2026.

RTW Investments held 1,672,356 shares of Alkermes worth $87.6M as of Q2 2026.
RTW Investments left its Alkermes share count unchanged in Q2 2026.
Alkermes made up 0.75% of RTW Investments's portfolio in Q2 2026, its #37 holding.
RTW Investments first reported a position in Alkermes in Q3 2023 and has held it in 12 quarters since.
RTW Investments's Alkermes position peaked at $227M in Q1 2025.
424 funds tracked by Wall St. Rank held Alkermes as of Q2 2026.

Based on RTW Investments's 13F filing for Q2 2026, filed 14 Aug 2026.