ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

D. E. Shaw & Co., Inc.'s Holding History (CIK: 0001009207)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 911,272 Value ($000) $25,497 Avg Close $29.95 Range $27.49 - $36.32

Q3 2025

Shares 528,749 Value ($000) $15,862 Avg Close $28.20 Range $25.17 - $31.69

Q2 2025

Shares 820,096 Value ($000) $23,463 Avg Close $29.76 Range $25.56 - $33.48

Q1 2025

Shares 468,481 Value ($000) $15,469 Avg Close $32.61 Range $27.70 - $36.45

Q4 2024

Shares 555,927 Value ($000) $15,988 Avg Close $28.75 Range $25.67 - $32.25

Q3 2024

Shares 555,683 Value ($000) $15,554 Avg Close $26.66 Range $22.90 - $29.02

Q2 2024

Shares 323,141 Value ($000) $7,788 Avg Close $24.53 Range $23.14 - $27.56

Q1 2024

Shares 341,841 Value ($000) $9,254 Avg Close $28.40 Range $26.18 - $32.88

Q4 2023

Shares 638,433 Value ($000) $17,710 Avg Close $25.98 Range $22.01 - $29.02

Q3 2023

Shares 964,594 Value ($000) $27,018 Avg Close $29.32 Range $25.68 - $32.57

Q2 2023

Shares 681,619 Value ($000) $21,335 Avg Close $30.28 Range $27.68 - $33.71

Q1 2023

Shares 444,280 Value ($000) $12,524 Avg Close $27.24 Range $25.00 - $29.49

Q4 2022

Shares 571,354 Value ($000) $14,929 Avg Close $23.93 Range $21.75 - $26.34

Q3 2022

Shares 248,242 Value ($000) $5,543 Avg Close $26.01 Range $21.81 - $32.23

Q2 2022

Shares 274,861 Value ($000) $8,188 Avg Close $28.72 Range $26.14 - $32.79

Q1 2022

Shares 59,842 Value ($000) $1,574 Avg Close $24.77 Range $22.72 - $28.35

Q4 2021

Shares 188,898 Value ($000) $4,394 Avg Close $26.29 Range $21.24 - $33.00

Q3 2021

Shares 77,094 Value ($000) $2,378 Avg Close $28.25 Range $23.11 - $32.53

Q2 2021

Shares 176,537 Value ($000) $4,329 Avg Close $22.25 Range $18.43 - $25.47

Q1 2021

Shares 65,911 Value ($000) $1,231 Avg Close $20.47 Range $18.02 - $23.92

Q4 2020

Shares 407,096 Value ($000) $8,121 Avg Close $18.28 Range $15.35 - $22.22

Q3 2020

Shares 715,130 Value ($000) $11,850 Avg Close $18.17 Range $15.68 - $20.85

Q2 2020

Shares 570,989 Value ($000) $11,081 Avg Close $16.23 Range $13.03 - $19.86

Q1 2020

Shares 872,492 Value ($000) $12,582 Avg Close $17.85 Range $11.98 - $21.46

Q4 2019

Shares 1,058,938 Value ($000) $21,603 Avg Close $19.88 Range $17.11 - $21.88

Q3 2019

Shares 658,286 Value ($000) $12,843 Avg Close $21.76 Range $18.69 - $25.35

Q2 2019

Shares 810,821 Value ($000) $18,276 Avg Close $27.41 Range $21.29 - $37.75

Q1 2019

Shares 347,758 Value ($000) $12,690 Avg Close $33.02 Range $28.19 - $36.56

Q4 2018

Shares 114,873 Value ($000) $3,390 Avg Close $36.92 Range $27.54 - $45.16

Q3 2018

Shares 112,645 Value ($000) $4,781 Avg Close $43.40 Range $38.23 - $46.98

Q2 2018

Shares 57,182 Value ($000) $2,354 Avg Close $45.54 Range $39.54 - $51.70

Q1 2018

Shares 77,596 Value ($000) $4,497 Avg Close $58.50 Range $51.68 - $71.22

Q4 2017

Shares 184,144 Value ($000) $10,078 Avg Close $51.03 Range $46.43 - $56.58

Q3 2017

Shares 552,302 Value ($000) $28,079 Avg Close $53.48 Range $48.90 - $61.31

Q2 2017

Shares 791,406 Value ($000) $45,878 Avg Close $58.09 Range $53.64 - $63.40

Q1 2017

Shares 890,970 Value ($000) $52,122 Avg Close $56.71 Range $51.08 - $62.50

Q4 2016

Shares 831,790 Value ($000) $46,231 Avg Close $53.46 Range $41.93 - $60.74

Q3 2016

Shares 1,665,836 Value ($000) $78,345 Avg Close $47.55 Range $43.26 - $52.27

Q2 2016

Shares 1,401,817 Value ($000) $60,586 Avg Close $41.26 Range $33.31 - $47.90

Q1 2016

Shares 963,834 Value ($000) $32,953 Avg Close $39.49 Range $27.14 - $78.88

Q4 2015

Shares 266,770 Value ($000) $21,176 Avg Close $70.02 Range $54.36 - $80.71

Q3 2015

Shares 16,604 Value ($000) $974 Avg Close $66.02 Range $53.01 - $73.33

Q2 2015

Shares 188,649 Value ($000) $12,138 Avg Close $61.20 Range $54.54 - $68.23

Q1 2015

Shares 252,063 Value ($000) $15,368 Avg Close $68.32 Range $57.31 - $75.17

Q4 2014

Shares 250,684 Value ($000) $14,680 Avg Close $50.94 Range $38.49 - $59.69

Q3 2014

Shares 279,896 Value ($000) $11,999 Avg Close $44.82 Range $41.02 - $52.50

Q2 2014

Shares 338,295 Value ($000) $17,026 Avg Close $46.12 Range $40.30 - $51.81

Q1 2014

Shares 634,202 Value ($000) $27,962 Avg Close $47.58 Range $39.68 - $54.25

Q4 2013

Shares 607,691 Value ($000) $24,709 Avg Close $36.93 Range $29.36 - $41.47

Q3 2013

Shares 332,539 Value ($000) $11,180 Avg Close $32.55 Range $27.72 - $35.72

Q2 2013

Shares 174,244 Value ($000) $4,997 Avg Close $29.15 Range $22.17 - $34.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	911,272	$25,497	$29.95	$27.49 - $36.32
Q3 2025	528,749	$15,862	$28.20	$25.17 - $31.69
Q2 2025	820,096	$23,463	$29.76	$25.56 - $33.48
Q1 2025	468,481	$15,469	$32.61	$27.70 - $36.45
Q4 2024	555,927	$15,988	$28.75	$25.67 - $32.25
Q3 2024	555,683	$15,554	$26.66	$22.90 - $29.02
Q2 2024	323,141	$7,788	$24.53	$23.14 - $27.56
Q1 2024	341,841	$9,254	$28.40	$26.18 - $32.88
Q4 2023	638,433	$17,710	$25.98	$22.01 - $29.02
Q3 2023	964,594	$27,018	$29.32	$25.68 - $32.57
Q2 2023	681,619	$21,335	$30.28	$27.68 - $33.71
Q1 2023	444,280	$12,524	$27.24	$25.00 - $29.49
Q4 2022	571,354	$14,929	$23.93	$21.75 - $26.34
Q3 2022	248,242	$5,543	$26.01	$21.81 - $32.23
Q2 2022	274,861	$8,188	$28.72	$26.14 - $32.79
Q1 2022	59,842	$1,574	$24.77	$22.72 - $28.35
Q4 2021	188,898	$4,394	$26.29	$21.24 - $33.00
Q3 2021	77,094	$2,378	$28.25	$23.11 - $32.53
Q2 2021	176,537	$4,329	$22.25	$18.43 - $25.47
Q1 2021	65,911	$1,231	$20.47	$18.02 - $23.92
Q4 2020	407,096	$8,121	$18.28	$15.35 - $22.22
Q3 2020	715,130	$11,850	$18.17	$15.68 - $20.85
Q2 2020	570,989	$11,081	$16.23	$13.03 - $19.86
Q1 2020	872,492	$12,582	$17.85	$11.98 - $21.46
Q4 2019	1,058,938	$21,603	$19.88	$17.11 - $21.88
Q3 2019	658,286	$12,843	$21.76	$18.69 - $25.35
Q2 2019	810,821	$18,276	$27.41	$21.29 - $37.75
Q1 2019	347,758	$12,690	$33.02	$28.19 - $36.56
Q4 2018	114,873	$3,390	$36.92	$27.54 - $45.16
Q3 2018	112,645	$4,781	$43.40	$38.23 - $46.98
Q2 2018	57,182	$2,354	$45.54	$39.54 - $51.70
Q1 2018	77,596	$4,497	$58.50	$51.68 - $71.22
Q4 2017	184,144	$10,078	$51.03	$46.43 - $56.58
Q3 2017	552,302	$28,079	$53.48	$48.90 - $61.31
Q2 2017	791,406	$45,878	$58.09	$53.64 - $63.40
Q1 2017	890,970	$52,122	$56.71	$51.08 - $62.50
Q4 2016	831,790	$46,231	$53.46	$41.93 - $60.74
Q3 2016	1,665,836	$78,345	$47.55	$43.26 - $52.27
Q2 2016	1,401,817	$60,586	$41.26	$33.31 - $47.90
Q1 2016	963,834	$32,953	$39.49	$27.14 - $78.88
Q4 2015	266,770	$21,176	$70.02	$54.36 - $80.71
Q3 2015	16,604	$974	$66.02	$53.01 - $73.33
Q2 2015	188,649	$12,138	$61.20	$54.54 - $68.23
Q1 2015	252,063	$15,368	$68.32	$57.31 - $75.17
Q4 2014	250,684	$14,680	$50.94	$38.49 - $59.69
Q3 2014	279,896	$11,999	$44.82	$41.02 - $52.50
Q2 2014	338,295	$17,026	$46.12	$40.30 - $51.81
Q1 2014	634,202	$27,962	$47.58	$39.68 - $54.25
Q4 2013	607,691	$24,709	$36.93	$29.36 - $41.47
Q3 2013	332,539	$11,180	$32.55	$27.72 - $35.72
Q2 2013	174,244	$4,997	$29.15	$22.17 - $34.30