ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q4 2025

Shares 285,670 Value ($000) $7,993 Avg Close $29.95 Range $27.49 - $36.32

Q3 2025

Shares 134,387 Value ($000) $4,032 Avg Close $28.20 Range $25.17 - $31.69

Q2 2025

Shares 113,320 Value ($000) $3,242 Avg Close $29.76 Range $25.56 - $33.48

Q1 2025

Shares 76,853 Value ($000) $2,538 Avg Close $32.61 Range $27.70 - $36.45

Q4 2024

Shares 122,489 Value ($000) $3,523 Avg Close $28.75 Range $25.67 - $32.25

Q3 2024

Shares 95,509 Value ($000) $2,673 Avg Close $26.66 Range $22.90 - $29.02

Q2 2024

Shares 49,652 Value ($000) $1,197 Avg Close $24.53 Range $23.14 - $27.56

Q1 2024

Shares 39,917 Value ($000) $1,081 Avg Close $28.40 Range $26.18 - $32.88

Q4 2023

Shares 38,190 Value ($000) $1,059 Avg Close $25.98 Range $22.01 - $29.02

Q3 2023

Shares 13,802 Value ($000) $387 Avg Close $29.32 Range $25.68 - $32.57

Q1 2022

Shares 7,245 Value ($000) $191 Avg Close $24.77 Range $22.72 - $28.35

Q4 2021

Shares 41,712 Value ($000) $971 Avg Close $26.29 Range $21.24 - $33.00

Q2 2019

Shares 3,789 Value ($000) $86 Avg Close $27.41 Range $21.29 - $37.75

Q1 2019

Shares 4,792 Value ($000) $176 Avg Close $33.02 Range $28.19 - $36.56

Q4 2018

Shares 4,792 Value ($000) $142 Avg Close $36.92 Range $27.54 - $45.16

Q3 2018

Shares 4,792 Value ($000) $204 Avg Close $43.40 Range $38.23 - $46.98

Q2 2018

Shares 4,792 Value ($000) $197 Avg Close $45.54 Range $39.54 - $51.70

Q1 2018

Shares 4,792 Value ($000) $277 Avg Close $58.50 Range $51.68 - $71.22

Q4 2017

Shares 4,792 Value ($000) $262 Avg Close $51.03 Range $46.43 - $56.58

Q3 2017

Shares 2,006 Value ($000) $102 Avg Close $53.48 Range $48.90 - $61.31

Q2 2017

Shares 2,006 Value ($000) $116 Avg Close $58.09 Range $53.64 - $63.40

Q1 2017

Shares 2,006 Value ($000) $118 Avg Close $56.71 Range $51.08 - $62.50

Q4 2016

Shares 2,656 Value ($000) $148 Avg Close $53.46 Range $41.93 - $60.74

Q1 2016

Shares 4,956 Value ($000) $169 Avg Close $39.49 Range $27.14 - $78.88

Q4 2015

Shares 4,956 Value ($000) $393 Avg Close $70.02 Range $54.36 - $80.71

Q3 2015

Shares 4,956 Value ($000) $291 Avg Close $66.02 Range $53.01 - $73.33

Q2 2015

Shares 4,956 Value ($000) $319 Avg Close $61.20 Range $54.54 - $68.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	285,670	$7,993	$29.95	$27.49 - $36.32
Q3 2025	134,387	$4,032	$28.20	$25.17 - $31.69
Q2 2025	113,320	$3,242	$29.76	$25.56 - $33.48
Q1 2025	76,853	$2,538	$32.61	$27.70 - $36.45
Q4 2024	122,489	$3,523	$28.75	$25.67 - $32.25
Q3 2024	95,509	$2,673	$26.66	$22.90 - $29.02
Q2 2024	49,652	$1,197	$24.53	$23.14 - $27.56
Q1 2024	39,917	$1,081	$28.40	$26.18 - $32.88
Q4 2023	38,190	$1,059	$25.98	$22.01 - $29.02
Q3 2023	13,802	$387	$29.32	$25.68 - $32.57
Q1 2022	7,245	$191	$24.77	$22.72 - $28.35
Q4 2021	41,712	$971	$26.29	$21.24 - $33.00
Q2 2019	3,789	$86	$27.41	$21.29 - $37.75
Q1 2019	4,792	$176	$33.02	$28.19 - $36.56
Q4 2018	4,792	$142	$36.92	$27.54 - $45.16
Q3 2018	4,792	$204	$43.40	$38.23 - $46.98
Q2 2018	4,792	$197	$45.54	$39.54 - $51.70
Q1 2018	4,792	$277	$58.50	$51.68 - $71.22
Q4 2017	4,792	$262	$51.03	$46.43 - $56.58
Q3 2017	2,006	$102	$53.48	$48.90 - $61.31
Q2 2017	2,006	$116	$58.09	$53.64 - $63.40
Q1 2017	2,006	$118	$56.71	$51.08 - $62.50
Q4 2016	2,656	$148	$53.46	$41.93 - $60.74
Q1 2016	4,956	$169	$39.49	$27.14 - $78.88
Q4 2015	4,956	$393	$70.02	$54.36 - $80.71
Q3 2015	4,956	$291	$66.02	$53.01 - $73.33
Q2 2015	4,956	$319	$61.20	$54.54 - $68.23