Jane Street’s Alkermes ALKS Stock Holding History

Jane Street’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	$202K	Sell	5,700 -55,070	-91%	-$1.71M	﹤0.01%	10132
2025 Q4	$1.7M	Sell	60,770 -331,411	-85%	-$9.93M	﹤0.01%	5119
2025 Q3	$11.8M	Buy	392,181 +35,084	+10%	+$989K	﹤0.01%	2210
2025 Q2	$10.2M	Sell	357,097 -167,590	-32%	-$4.99M	﹤0.01%	2132
2025 Q1	$17.3M	Buy	524,687 +196,846	+60%	+$6.42M	﹤0.01%	1418
2024 Q4	$9.43M	Buy	327,841 +66,213	+25%	+$1.9M	﹤0.01%	1937
2024 Q3	$7.32M	Buy	261,628 +54,234	+26%	+$1.45M	﹤0.01%	2299
2024 Q2	$5M	Buy	207,394 +132,636	+177%	+$3.25M	﹤0.01%	2971
2024 Q1	$2.02M	Sell	74,758 -32,394	-30%	-$920K	﹤0.01%	4104
2023 Q4	$2.97M	Buy	107,152 +1,028	+1%	+$26.7K	﹤0.01%	3654
2023 Q3	$2.97M	Sell	106,124 -69,468	-40%	-$2.04M	﹤0.01%	3392
2023 Q2	$5.5M	Buy	175,592 +76,979	+78%	+$2.33M	﹤0.01%	2592
2023 Q1	$2.78M	Buy	98,613 +60,327	+158%	+$1.64M	﹤0.01%	3271
2022 Q4	$1M	Buy	+38,286	New	+$916K	﹤0.01%	4988
2022 Q3	–	Sell	-81,932	Closed	-$2.13M	–	9623
2022 Q2	$2.44M	Buy	81,932 +47,005	+135%	+$1.35M	﹤0.01%	3798
2022 Q1	$919K	Buy	+34,927	New	+$865K	﹤0.01%	6309
2021 Q4	–	Sell	-35,700	Closed	-$939K	–	9988
2021 Q3	$1.1M	Buy	35,700 +6,962	+24%	+$197K	﹤0.01%	5721
2021 Q2	$704K	Buy	28,738 +15,091	+111%	+$336K	﹤0.01%	6577
2021 Q1	$255K	Sell	13,647 -37,503	-73%	-$768K	﹤0.01%	7924
2020 Q4	$1.02M	Buy	51,150 +60	+0.1%	+$1.1K	﹤0.01%	4623
2020 Q3	$846K	Buy	51,090 +27,956	+121%	+$508K	﹤0.01%	4369
2020 Q2	$449K	Buy	23,134 +12,854	+125%	+$209K	﹤0.01%	5241
2020 Q1	$148K	Sell	10,280 -99,641	-91%	-$1.78M	﹤0.01%	4784
2019 Q4	$2.24M	Buy	109,921 +92,879	+545%	+$1.85M	﹤0.01%	1817
2019 Q3	$333K	Buy	+17,042	New	+$371K	﹤0.01%	4046
2019 Q1	–	Sell	-16,924	Closed	-$500K	–	4950
2018 Q4	$500K	Sell	16,924 -31,918	-65%	-$1.18M	﹤0.01%	3454
2018 Q3	$2.07M	Buy	+48,842	New	+$2.12M	﹤0.01%	1860
2018 Q2	–	Sell	-11,144	Closed	-$646K	–	4914
2018 Q1	$646K	Buy	+11,144	New	+$652K	﹤0.01%	3170
2017 Q3	–	Sell	-5,723	Closed	-$332K	–	4392
2017 Q2	$332K	Sell	5,723 -7,308	-56%	-$425K	﹤0.01%	3492
2017 Q1	$762K	Buy	+13,031	New	+$739K	﹤0.01%	2408
2016 Q1	–	Sell	-56,603	Closed	-$2.24M	–	4015
2015 Q4	$4.49M	Buy	56,603 +47,730	+538%	+$3.34M	0.03%	550
2015 Q3	$521K	Buy	8,873 +4,021	+83%	+$265K	﹤0.01%	2267
2015 Q2	$312K	Sell	4,852 -17,585	-78%	-$1.08M	﹤0.01%	2785
2015 Q1	$1.37M	Buy	+22,437	New	+$1.53M	0.01%	1129
2014 Q3	–	Sell	-44,715	Closed	-$2.25M	–	2498
2014 Q2	$2.25M	Buy	44,715 +34,389	+333%	+$1.59M	0.03%	495
2014 Q1	$455K	Buy	+10,326	New	+$491K	0.01%	1655
2013 Q4	–	Sell	-6,497	Closed	-$218K	–	2299
2013 Q3	$218K	Sell	6,497 -197,339	-97%	-$6.42M	﹤0.01%	2343
2013 Q2	$5.85M	Buy	+203,836	New	+$5.94M	0.1%	149

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

Jane Street's ALKS Position: Q1 2026 in Review

Jane Street reduced its Alkermes (ALKS) stake by 91% in Q1 2026, selling an estimated $1.71M and leaving 5,700 shares worth $202K. The position accounts for ﹤0.01% of the portfolio, ranked #10132.

Jane Street first reported a position in ALKS in Q2 2013 and has held it in 38 quarters since. The position peaked at $17.3M in Q1 2025. 389 funds tracked by Wall St. Rank hold ALKS as of Q1 2026.

Jane Street held 5,700 shares of Alkermes worth $202K as of Q1 2026.
Jane Street sold 55,070 Alkermes shares in Q1 2026, an estimated $1.71M.
Alkermes made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10132 holding.
Jane Street first reported a position in Alkermes in Q2 2013 and has held it in 38 quarters since.
Jane Street's Alkermes position peaked at $17.3M in Q1 2025.
389 funds tracked by Wall St. Rank held Alkermes as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.