ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 129,899 Value ($000) $3,635 Avg Close $29.95 Range $27.49 - $36.32

Q2 2025

Shares 207,511 Value ($000) $5,937 Avg Close $29.76 Range $25.56 - $33.48

Q3 2023

Shares 1,768,014 Value ($000) $49,522 Avg Close $29.32 Range $25.68 - $32.57

Q2 2023

Shares 725,077 Value ($000) $22,695 Avg Close $30.28 Range $27.68 - $33.71

Q1 2023

Shares 113,404 Value ($000) $3,197 Avg Close $27.24 Range $25.00 - $29.49

Q4 2022

Shares 113,404 Value ($000) $2,963 Avg Close $23.93 Range $21.75 - $26.34

Q3 2021

Shares 21,043 Value ($000) $649 Avg Close $28.25 Range $23.11 - $32.53

Q4 2020

Shares 47,891 Value ($000) $955 Avg Close $18.28 Range $15.35 - $22.22

Q1 2020

Shares 19,063 Value ($000) $275 Avg Close $17.85 Range $11.98 - $21.46

Q4 2019

Shares 230,446 Value ($000) $4,700 Avg Close $19.88 Range $17.11 - $21.88

Q3 2019

Shares 58,716 Value ($000) $1,145 Avg Close $21.76 Range $18.69 - $25.35

Q1 2019

Shares 1,283 Value ($000) $47 Avg Close $33.02 Range $28.19 - $36.56

Q4 2018

Shares 1,283 Value ($000) $38 Avg Close $36.92 Range $27.54 - $45.16

Q4 2016

Shares 639,670 Value ($000) $35,553 Avg Close $53.46 Range $41.93 - $60.74

Q3 2016

Shares 318,973 Value ($000) $15,001 Avg Close $47.55 Range $43.26 - $52.27

Q2 2016

Shares 454,490 Value ($000) $19,643 Avg Close $41.26 Range $33.31 - $47.90

Q1 2016

Shares 288,682 Value ($000) $9,870 Avg Close $39.49 Range $27.14 - $78.88

Q4 2015

Shares 78,879 Value ($000) $6,261 Avg Close $70.02 Range $54.36 - $80.71

Q3 2015

Shares 185,715 Value ($000) $10,896 Avg Close $66.02 Range $53.01 - $73.33

Q2 2015

Shares 195,348 Value ($000) $12,569 Avg Close $61.20 Range $54.54 - $68.23

Q1 2015

Shares 77,463 Value ($000) $4,723 Avg Close $68.32 Range $57.31 - $75.17

Q3 2014

Shares 90,873 Value ($000) $3,896 Avg Close $44.82 Range $41.02 - $52.50

Q2 2014

Shares 46,424 Value ($000) $2,336 Avg Close $46.12 Range $40.30 - $51.81

Q1 2014

Shares 8,500 Value ($000) $375 Avg Close $47.58 Range $39.68 - $54.25

Q2 2013

Shares 7,000 Value ($000) $201 Avg Close $29.15 Range $22.17 - $34.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	129,899	$3,635	$29.95	$27.49 - $36.32
Q2 2025	207,511	$5,937	$29.76	$25.56 - $33.48
Q3 2023	1,768,014	$49,522	$29.32	$25.68 - $32.57
Q2 2023	725,077	$22,695	$30.28	$27.68 - $33.71
Q1 2023	113,404	$3,197	$27.24	$25.00 - $29.49
Q4 2022	113,404	$2,963	$23.93	$21.75 - $26.34
Q3 2021	21,043	$649	$28.25	$23.11 - $32.53
Q4 2020	47,891	$955	$18.28	$15.35 - $22.22
Q1 2020	19,063	$275	$17.85	$11.98 - $21.46
Q4 2019	230,446	$4,700	$19.88	$17.11 - $21.88
Q3 2019	58,716	$1,145	$21.76	$18.69 - $25.35
Q1 2019	1,283	$47	$33.02	$28.19 - $36.56
Q4 2018	1,283	$38	$36.92	$27.54 - $45.16
Q4 2016	639,670	$35,553	$53.46	$41.93 - $60.74
Q3 2016	318,973	$15,001	$47.55	$43.26 - $52.27
Q2 2016	454,490	$19,643	$41.26	$33.31 - $47.90
Q1 2016	288,682	$9,870	$39.49	$27.14 - $78.88
Q4 2015	78,879	$6,261	$70.02	$54.36 - $80.71
Q3 2015	185,715	$10,896	$66.02	$53.01 - $73.33
Q2 2015	195,348	$12,569	$61.20	$54.54 - $68.23
Q1 2015	77,463	$4,723	$68.32	$57.31 - $75.17
Q3 2014	90,873	$3,896	$44.82	$41.02 - $52.50
Q2 2014	46,424	$2,336	$46.12	$40.30 - $51.81
Q1 2014	8,500	$375	$47.58	$39.68 - $54.25
Q2 2013	7,000	$201	$29.15	$22.17 - $34.30