ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM's Holding History (CIK: 0000919079)

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

Q4 2025

Shares 324,578 Value ($000) $9,082 Avg Close $29.95 Range $27.49 - $36.32

Q3 2025

Shares 320,879 Value ($000) $9,626 Avg Close $28.20 Range $25.17 - $31.69

Q2 2025

Shares 308,542 Value ($000) $8,827 Avg Close $29.76 Range $25.56 - $33.48

Q1 2025

Shares 293,190 Value ($000) $9,681 Avg Close $32.61 Range $27.70 - $36.45

Q4 2024

Shares 289,799 Value ($000) $8,335 Avg Close $28.75 Range $25.67 - $32.25

Q3 2024

Shares 322,103 Value ($000) $9,016 Avg Close $26.66 Range $22.90 - $29.02

Q2 2024

Shares 323,548 Value ($000) $7,798 Avg Close $24.53 Range $23.14 - $27.56

Q1 2024

Shares 315,761 Value ($000) $8,548 Avg Close $28.40 Range $26.18 - $32.88

Q4 2023

Shares 965,192 Value ($000) $26,774 Avg Close $25.98 Range $22.01 - $29.02

Q3 2023

Shares 967,804 Value ($000) $27,108 Avg Close $29.32 Range $25.68 - $32.57

Q2 2023

Shares 851,330 Value ($000) $26,647 Avg Close $30.28 Range $27.68 - $33.71

Q1 2023

Shares 790,700 Value ($000) $22,290 Avg Close $27.24 Range $25.00 - $29.49

Q4 2022

Shares 505,276 Value ($000) $13,203 Avg Close $23.93 Range $21.75 - $26.34

Q3 2022

Shares 389,728 Value ($000) $8,703 Avg Close $26.01 Range $21.81 - $32.23

Q2 2022

Shares 309,743 Value ($000) $9,227 Avg Close $28.72 Range $26.14 - $32.79

Q1 2022

Shares 307,008 Value ($000) $8,077 Avg Close $24.77 Range $22.72 - $28.35

Q4 2021

Shares 304,982 Value ($000) $7,094 Avg Close $26.29 Range $21.24 - $33.00

Q3 2021

Shares 252,015 Value ($000) $7,772 Avg Close $28.25 Range $23.11 - $32.53

Q1 2021

Shares 354,615 Value ($000) $6,624 Avg Close $20.47 Range $18.02 - $23.92

Q4 2020

Shares 410,866 Value ($000) $8,197 Avg Close $18.28 Range $15.35 - $22.22

Q3 2020

Shares 364,878 Value ($000) $6,046 Avg Close $18.17 Range $15.68 - $20.85

Q2 2020

Shares 351,290 Value ($000) $6,817 Avg Close $16.23 Range $13.03 - $19.86

Q1 2020

Shares 352,127 Value ($000) $5,078 Avg Close $17.85 Range $11.98 - $21.46

Q4 2019

Shares 369,927 Value ($000) $7,547 Avg Close $19.88 Range $17.11 - $21.88

Q3 2019

Shares 341,171 Value ($000) $6,656 Avg Close $21.76 Range $18.69 - $25.35

Q2 2019

Shares 202,100 Value ($000) $4,555 Avg Close $27.41 Range $21.29 - $37.75

Q1 2019

Shares 219,745 Value ($000) $8,018 Avg Close $33.02 Range $28.19 - $36.56

Q4 2018

Shares 234,781 Value ($000) $6,928 Avg Close $36.92 Range $27.54 - $45.16

Q3 2018

Shares 253,893 Value ($000) $10,775 Avg Close $43.40 Range $38.23 - $46.98

Q2 2018

Shares 290,341 Value ($000) $11,950 Avg Close $45.54 Range $39.54 - $51.70

Q1 2018

Shares 354,222 Value ($000) $20,531 Avg Close $58.50 Range $51.68 - $71.22

Q4 2017

Shares 373,146 Value ($000) $20,422 Avg Close $51.03 Range $46.43 - $56.58

Q3 2017

Shares 234,300 Value ($000) $11,912 Avg Close $53.48 Range $48.90 - $61.31

Q2 2017

Shares 229,800 Value ($000) $13,322 Avg Close $58.09 Range $53.64 - $63.40

Q1 2017

Shares 224,800 Value ($000) $13,151 Avg Close $56.71 Range $51.08 - $62.50

Q4 2016

Shares 234,500 Value ($000) $13,034 Avg Close $53.46 Range $41.93 - $60.74

Q3 2016

Shares 234,500 Value ($000) $11,029 Avg Close $47.55 Range $43.26 - $52.27

Q2 2016

Shares 263,100 Value ($000) $11,371 Avg Close $41.26 Range $33.31 - $47.90

Q1 2016

Shares 270,900 Value ($000) $9,262 Avg Close $39.49 Range $27.14 - $78.88

Q4 2015

Shares 292,700 Value ($000) $23,235 Avg Close $70.02 Range $54.36 - $80.71

Q3 2015

Shares 289,700 Value ($000) $16,997 Avg Close $66.02 Range $53.01 - $73.33

Q2 2015

Shares 286,400 Value ($000) $18,427 Avg Close $61.20 Range $54.54 - $68.23

Q1 2015

Shares 281,433 Value ($000) $19,855 Avg Close $68.32 Range $57.31 - $75.17

Q4 2014

Shares 281,433 Value ($000) $19,855 Avg Close $50.94 Range $38.49 - $59.69

Q3 2014

Shares 283,502 Value ($000) $12,154 Avg Close $44.82 Range $41.02 - $52.50

Q2 2014

Shares 299,709 Value ($000) $15,084 Avg Close $46.12 Range $40.30 - $51.81

Q1 2014

Shares 299,169 Value ($000) $12,589 Avg Close $47.58 Range $39.68 - $54.25

Q4 2013

Shares 270,849 Value ($000) $11,129 Avg Close $36.93 Range $29.36 - $41.47

Q3 2013

Shares 251,494 Value ($000) $8,455 Avg Close $32.55 Range $27.72 - $35.72

Q2 2013

Shares 270,206 Value ($000) $7,750 Avg Close $29.15 Range $22.17 - $34.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	324,578	$9,082	$29.95	$27.49 - $36.32
Q3 2025	320,879	$9,626	$28.20	$25.17 - $31.69
Q2 2025	308,542	$8,827	$29.76	$25.56 - $33.48
Q1 2025	293,190	$9,681	$32.61	$27.70 - $36.45
Q4 2024	289,799	$8,335	$28.75	$25.67 - $32.25
Q3 2024	322,103	$9,016	$26.66	$22.90 - $29.02
Q2 2024	323,548	$7,798	$24.53	$23.14 - $27.56
Q1 2024	315,761	$8,548	$28.40	$26.18 - $32.88
Q4 2023	965,192	$26,774	$25.98	$22.01 - $29.02
Q3 2023	967,804	$27,108	$29.32	$25.68 - $32.57
Q2 2023	851,330	$26,647	$30.28	$27.68 - $33.71
Q1 2023	790,700	$22,290	$27.24	$25.00 - $29.49
Q4 2022	505,276	$13,203	$23.93	$21.75 - $26.34
Q3 2022	389,728	$8,703	$26.01	$21.81 - $32.23
Q2 2022	309,743	$9,227	$28.72	$26.14 - $32.79
Q1 2022	307,008	$8,077	$24.77	$22.72 - $28.35
Q4 2021	304,982	$7,094	$26.29	$21.24 - $33.00
Q3 2021	252,015	$7,772	$28.25	$23.11 - $32.53
Q1 2021	354,615	$6,624	$20.47	$18.02 - $23.92
Q4 2020	410,866	$8,197	$18.28	$15.35 - $22.22
Q3 2020	364,878	$6,046	$18.17	$15.68 - $20.85
Q2 2020	351,290	$6,817	$16.23	$13.03 - $19.86
Q1 2020	352,127	$5,078	$17.85	$11.98 - $21.46
Q4 2019	369,927	$7,547	$19.88	$17.11 - $21.88
Q3 2019	341,171	$6,656	$21.76	$18.69 - $25.35
Q2 2019	202,100	$4,555	$27.41	$21.29 - $37.75
Q1 2019	219,745	$8,018	$33.02	$28.19 - $36.56
Q4 2018	234,781	$6,928	$36.92	$27.54 - $45.16
Q3 2018	253,893	$10,775	$43.40	$38.23 - $46.98
Q2 2018	290,341	$11,950	$45.54	$39.54 - $51.70
Q1 2018	354,222	$20,531	$58.50	$51.68 - $71.22
Q4 2017	373,146	$20,422	$51.03	$46.43 - $56.58
Q3 2017	234,300	$11,912	$53.48	$48.90 - $61.31
Q2 2017	229,800	$13,322	$58.09	$53.64 - $63.40
Q1 2017	224,800	$13,151	$56.71	$51.08 - $62.50
Q4 2016	234,500	$13,034	$53.46	$41.93 - $60.74
Q3 2016	234,500	$11,029	$47.55	$43.26 - $52.27
Q2 2016	263,100	$11,371	$41.26	$33.31 - $47.90
Q1 2016	270,900	$9,262	$39.49	$27.14 - $78.88
Q4 2015	292,700	$23,235	$70.02	$54.36 - $80.71
Q3 2015	289,700	$16,997	$66.02	$53.01 - $73.33
Q2 2015	286,400	$18,427	$61.20	$54.54 - $68.23
Q1 2015	281,433	$19,855	$68.32	$57.31 - $75.17
Q4 2014	281,433	$19,855	$50.94	$38.49 - $59.69
Q3 2014	283,502	$12,154	$44.82	$41.02 - $52.50
Q2 2014	299,709	$15,084	$46.12	$40.30 - $51.81
Q1 2014	299,169	$12,589	$47.58	$39.68 - $54.25
Q4 2013	270,849	$11,129	$36.93	$29.36 - $41.47
Q3 2013	251,494	$8,455	$32.55	$27.72 - $35.72
Q2 2013	270,206	$7,750	$29.15	$22.17 - $34.30