Robeco Institutional Asset Management’s Alkermes ALKS Stock Holding History

Robeco Institutional Asset 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 Q2	$4.85M	Sell	92,592 -127,929	-58%	-$5M	0.01%	535
2026 Q1	$7.8M	Sell	220,521 -65,149	-23%	-$2.02M	0.01%	466
2025 Q4	$7.99M	Buy	285,670 +151,283	+113%	+$4.53M	0.01%	467
2025 Q3	$4.03M	Buy	134,387 +21,067	+19%	+$594K	0.01%	593
2025 Q2	$3.24M	Buy	113,320 +36,467	+47%	+$1.09M	0.01%	624
2025 Q1	$2.54M	Sell	76,853 -45,636	-37%	-$1.49M	﹤0.01%	674
2024 Q4	$3.52M	Buy	122,489 +26,980	+28%	+$776K	0.01%	615
2024 Q3	$2.67M	Buy	95,509 +45,857	+92%	+$1.22M	0.01%	652
2024 Q2	$1.2M	Buy	49,652 +9,735	+24%	+$239K	﹤0.01%	756
2024 Q1	$1.08M	Buy	39,917 +1,727	+5%	+$49K	﹤0.01%	766
2023 Q4	$1.06M	Buy	38,190 +24,388	+177%	+$633K	﹤0.01%	775
2023 Q3	$387K	Buy	+13,802	New	+$405K	﹤0.01%	865
2022 Q2	–	Sell	-7,245	Closed	-$191K	–	923
2022 Q1	$191K	Sell	7,245 -34,467	-83%	-$854K	﹤0.01%	848
2021 Q4	$971K	Buy	+41,712	New	+$1.1M	﹤0.01%	708
2019 Q3	–	Sell	-3,789	Closed	-$86K	–	969
2019 Q2	$86K	Sell	3,789 -1,003	-21%	-$27.5K	﹤0.01%	940
2019 Q1	$176K	Hold	4,792	–	–	﹤0.01%	908
2018 Q4	$142K	Hold	4,792	–	–	﹤0.01%	913
2018 Q3	$204K	Hold	4,792	–	–	﹤0.01%	905
2018 Q2	$197K	Hold	4,792	–	–	﹤0.01%	907
2018 Q1	$277K	Hold	4,792	–	–	﹤0.01%	851
2017 Q4	$262K	Buy	4,792 +2,786	+139%	+$142K	﹤0.01%	818
2017 Q3	$102K	Hold	2,006	–	–	﹤0.01%	807
2017 Q2	$116K	Hold	2,006	–	–	﹤0.01%	833
2017 Q1	$118K	Sell	2,006 -650	-24%	-$36.9K	﹤0.01%	818
2016 Q4	$148K	Buy	+2,656	New	+$142K	﹤0.01%	735
2016 Q2	–	Sell	-4,956	Closed	-$169K	–	761
2016 Q1	$169K	Hold	4,956	–	–	﹤0.01%	771
2015 Q4	$393K	Hold	4,956	–	–	﹤0.01%	715
2015 Q3	$291K	Hold	4,956	–	–	﹤0.01%	705
2015 Q2	$319K	Buy	+4,956	New	+$303K	﹤0.01%	721

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 $3.38T AUM 44.17% 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

Robeco Institutional Asset Management's ALKS Position: Q2 2026 in Review

Robeco Institutional Asset Management reduced its Alkermes (ALKS) stake by 58% in Q2 2026, selling an estimated $5M and leaving 92,592 shares worth $4.85M. The position accounts for 0.01% of the portfolio, ranked #535.

Robeco Institutional Asset Management first reported a position in ALKS in Q2 2015 and has held it in 29 quarters since. The position peaked at $7.99M in Q4 2025. 424 funds tracked by Wall St. Rank hold ALKS as of Q2 2026.

Robeco Institutional Asset Management held 92,592 shares of Alkermes worth $4.85M as of Q2 2026.
Robeco Institutional Asset Management sold 127,929 Alkermes shares in Q2 2026, an estimated $5M.
Alkermes made up 0.01% of Robeco Institutional Asset Management's portfolio in Q2 2026, its #535 holding.
Robeco Institutional Asset Management first reported a position in Alkermes in Q2 2015 and has held it in 29 quarters since.
Robeco Institutional Asset Management's Alkermes position peaked at $7.99M in Q4 2025.
424 funds tracked by Wall St. Rank held Alkermes as of Q2 2026.

Based on Robeco Institutional Asset Management's 13F filing for Q2 2026, filed 21 Jul 2026.