ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025

Shares 93,233 Value ($000) $2,609 Avg Close $29.95 Range $27.49 - $36.32

Q3 2025

Shares 99,936 Value ($000) $2,998 Avg Close $28.20 Range $25.17 - $31.69

Q2 2025

Shares 99,556 Value ($000) $2,848 Avg Close $29.76 Range $25.56 - $33.48

Q1 2025

Shares 118,197 Value ($000) $3,903 Avg Close $32.61 Range $27.70 - $36.45

Q4 2024

Shares 108,052 Value ($000) $3,108 Avg Close $28.75 Range $25.67 - $32.25

Q3 2024

Shares 151,439 Value ($000) $4,239 Avg Close $26.66 Range $22.90 - $29.02

Q2 2024

Shares 115,230 Value ($000) $2,777 Avg Close $24.53 Range $23.14 - $27.56

Q1 2024

Shares 124,145 Value ($000) $3,361 Avg Close $28.40 Range $26.18 - $32.88

Q4 2023

Shares 161,413 Value ($000) $4,478 Avg Close $25.98 Range $22.01 - $29.02

Q3 2023

Shares 137,270 Value ($000) $3,845 Avg Close $29.32 Range $25.68 - $32.57

Q2 2023

Shares 142,615 Value ($000) $4,464 Avg Close $30.28 Range $27.68 - $33.71

Q1 2023

Shares 151,626 Value ($000) $4,274 Avg Close $27.24 Range $25.00 - $29.49

Q4 2022

Shares 164,880 Value ($000) $4,308 Avg Close $23.93 Range $21.75 - $26.34

Q3 2022

Shares 164,863 Value ($000) $3,681 Avg Close $26.01 Range $21.81 - $32.23

Q2 2022

Shares 174,883 Value ($000) $5,210 Avg Close $28.72 Range $26.14 - $32.79

Q1 2022

Shares 214,800 Value ($000) $5,651 Avg Close $24.77 Range $22.72 - $28.35

Q4 2021

Shares 214,800 Value ($000) $4,996 Avg Close $26.29 Range $21.24 - $33.00

Q3 2021

Shares 208,100 Value ($000) $6,418 Avg Close $28.25 Range $23.11 - $32.53

Q2 2021

Shares 208,100 Value ($000) $5,103 Avg Close $22.25 Range $18.43 - $25.47

Q1 2021

Shares 20,117 Value ($000) $376 Avg Close $20.47 Range $18.02 - $23.92

Q4 2020

Shares 20,404 Value ($000) $407 Avg Close $18.28 Range $15.35 - $22.22

Q3 2020

Shares 21,254 Value ($000) $352 Avg Close $18.17 Range $15.68 - $20.85

Q2 2020

Shares 20,864 Value ($000) $405 Avg Close $16.23 Range $13.03 - $19.86

Q1 2020

Shares 21,254 Value ($000) $306 Avg Close $17.85 Range $11.98 - $21.46

Q4 2019

Shares 28,014 Value ($000) $571 Avg Close $19.88 Range $17.11 - $21.88

Q3 2019

Shares 148,852 Value ($000) $2,904 Avg Close $21.76 Range $18.69 - $25.35

Q2 2019

Shares 102,959 Value ($000) $2,321 Avg Close $27.41 Range $21.29 - $37.75

Q1 2019

Shares 76,677 Value ($000) $2,798 Avg Close $33.02 Range $28.19 - $36.56

Q4 2018

Shares 102,798 Value ($000) $3,034 Avg Close $36.92 Range $27.54 - $45.16

Q2 2018

Shares 135,045 Value ($000) $5,558 Avg Close $45.54 Range $39.54 - $51.70

Q1 2018

Shares 198,863 Value ($000) $11,526 Avg Close $58.50 Range $51.68 - $71.22

Q4 2017

Shares 270,949 Value ($000) $14,829 Avg Close $51.03 Range $46.43 - $56.58

Q3 2017

Shares 49,616 Value ($000) $2,522 Avg Close $53.48 Range $48.90 - $61.31

Q2 2017

Shares 126,987 Value ($000) $7,361 Avg Close $58.09 Range $53.64 - $63.40

Q1 2017

Shares 97,677 Value ($000) $5,714 Avg Close $56.71 Range $51.08 - $62.50

Q4 2016

Shares 82,378 Value ($000) $4,579 Avg Close $53.46 Range $41.93 - $60.74

Q3 2016

Shares 96,280 Value ($000) $4,528 Avg Close $47.55 Range $43.26 - $52.27

Q2 2016

Shares 99,980 Value ($000) $4,321 Avg Close $41.26 Range $33.31 - $47.90

Q1 2016

Shares 45,650 Value ($000) $1,561 Avg Close $39.49 Range $27.14 - $78.88

Q4 2015

Shares 110,060 Value ($000) $8,737 Avg Close $70.02 Range $54.36 - $80.71

Q3 2015

Shares 111,030 Value ($000) $6,514 Avg Close $66.02 Range $53.01 - $73.33

Q2 2015

Shares 114,110 Value ($000) $7,342 Avg Close $61.20 Range $54.54 - $68.23

Q1 2015

Shares 109,730 Value ($000) $6,690 Avg Close $68.32 Range $57.31 - $75.17

Q4 2014

Shares 112,740 Value ($000) $6,602 Avg Close $50.94 Range $38.49 - $59.69

Q3 2014

Shares 106,300 Value ($000) $4,557 Avg Close $44.82 Range $41.02 - $52.50

Q2 2014

Shares 105,590 Value ($000) $5,314 Avg Close $46.12 Range $40.30 - $51.81

Q1 2014

Shares 96,730 Value ($000) $4,265 Avg Close $47.58 Range $39.68 - $54.25

Q4 2013

Shares 90,180 Value ($000) $3,667 Avg Close $36.93 Range $29.36 - $41.47

Q3 2013

Shares 92,950 Value ($000) $3,125 Avg Close $32.55 Range $27.72 - $35.72

Q2 2013

Shares 100,150 Value ($000) $2,872 Avg Close $29.15 Range $22.17 - $34.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	93,233	$2,609	$29.95	$27.49 - $36.32
Q3 2025	99,936	$2,998	$28.20	$25.17 - $31.69
Q2 2025	99,556	$2,848	$29.76	$25.56 - $33.48
Q1 2025	118,197	$3,903	$32.61	$27.70 - $36.45
Q4 2024	108,052	$3,108	$28.75	$25.67 - $32.25
Q3 2024	151,439	$4,239	$26.66	$22.90 - $29.02
Q2 2024	115,230	$2,777	$24.53	$23.14 - $27.56
Q1 2024	124,145	$3,361	$28.40	$26.18 - $32.88
Q4 2023	161,413	$4,478	$25.98	$22.01 - $29.02
Q3 2023	137,270	$3,845	$29.32	$25.68 - $32.57
Q2 2023	142,615	$4,464	$30.28	$27.68 - $33.71
Q1 2023	151,626	$4,274	$27.24	$25.00 - $29.49
Q4 2022	164,880	$4,308	$23.93	$21.75 - $26.34
Q3 2022	164,863	$3,681	$26.01	$21.81 - $32.23
Q2 2022	174,883	$5,210	$28.72	$26.14 - $32.79
Q1 2022	214,800	$5,651	$24.77	$22.72 - $28.35
Q4 2021	214,800	$4,996	$26.29	$21.24 - $33.00
Q3 2021	208,100	$6,418	$28.25	$23.11 - $32.53
Q2 2021	208,100	$5,103	$22.25	$18.43 - $25.47
Q1 2021	20,117	$376	$20.47	$18.02 - $23.92
Q4 2020	20,404	$407	$18.28	$15.35 - $22.22
Q3 2020	21,254	$352	$18.17	$15.68 - $20.85
Q2 2020	20,864	$405	$16.23	$13.03 - $19.86
Q1 2020	21,254	$306	$17.85	$11.98 - $21.46
Q4 2019	28,014	$571	$19.88	$17.11 - $21.88
Q3 2019	148,852	$2,904	$21.76	$18.69 - $25.35
Q2 2019	102,959	$2,321	$27.41	$21.29 - $37.75
Q1 2019	76,677	$2,798	$33.02	$28.19 - $36.56
Q4 2018	102,798	$3,034	$36.92	$27.54 - $45.16
Q2 2018	135,045	$5,558	$45.54	$39.54 - $51.70
Q1 2018	198,863	$11,526	$58.50	$51.68 - $71.22
Q4 2017	270,949	$14,829	$51.03	$46.43 - $56.58
Q3 2017	49,616	$2,522	$53.48	$48.90 - $61.31
Q2 2017	126,987	$7,361	$58.09	$53.64 - $63.40
Q1 2017	97,677	$5,714	$56.71	$51.08 - $62.50
Q4 2016	82,378	$4,579	$53.46	$41.93 - $60.74
Q3 2016	96,280	$4,528	$47.55	$43.26 - $52.27
Q2 2016	99,980	$4,321	$41.26	$33.31 - $47.90
Q1 2016	45,650	$1,561	$39.49	$27.14 - $78.88
Q4 2015	110,060	$8,737	$70.02	$54.36 - $80.71
Q3 2015	111,030	$6,514	$66.02	$53.01 - $73.33
Q2 2015	114,110	$7,342	$61.20	$54.54 - $68.23
Q1 2015	109,730	$6,690	$68.32	$57.31 - $75.17
Q4 2014	112,740	$6,602	$50.94	$38.49 - $59.69
Q3 2014	106,300	$4,557	$44.82	$41.02 - $52.50
Q2 2014	105,590	$5,314	$46.12	$40.30 - $51.81
Q1 2014	96,730	$4,265	$47.58	$39.68 - $54.25
Q4 2013	90,180	$3,667	$36.93	$29.36 - $41.47
Q3 2013	92,950	$3,125	$32.55	$27.72 - $35.72
Q2 2013	100,150	$2,872	$29.15	$22.17 - $34.30