ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

BARCLAYS PLC's Holding History (CIK: 0000312069)

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

Q4 2025

Shares 565,033 Value ($000) $15,810 Avg Close $29.95 Range $27.49 - $36.32

Q3 2025

Shares 423,931 Value ($000) $11,866 Avg Close $28.20 Range $25.17 - $31.69

Q2 2025

Shares 694,122 Value ($000) $19,859 Avg Close $29.76 Range $25.56 - $33.48

Q1 2025

Shares 419,951 Value ($000) $13,867 Avg Close $32.61 Range $27.70 - $36.45

Q4 2024

Shares 425,777 Value ($000) $12,245 Avg Close $28.75 Range $25.67 - $32.25

Q3 2024

Shares 423,931 Value ($000) $12 Avg Close $26.66 Range $22.90 - $29.02

Q2 2024

Shares 203,038 Value ($000) $4,893 Avg Close $24.53 Range $23.14 - $27.56

Q1 2024

Shares 234,760 Value ($000) $6,355 Avg Close $28.40 Range $26.18 - $32.88

Q4 2023

Shares 428,269 Value ($000) $11,880 Avg Close $25.98 Range $22.01 - $29.02

Q3 2023

Shares 228,388 Value ($000) $6,397 Avg Close $29.32 Range $25.68 - $32.57

Q2 2023

Shares 204,877 Value ($000) $6 Avg Close $30.28 Range $27.68 - $33.71

Q1 2023

Shares 280,393 Value ($000) $8 Avg Close $27.24 Range $25.00 - $29.49

Q4 2022

Shares 317,786 Value ($000) $8 Avg Close $23.93 Range $21.75 - $26.34

Q3 2022

Shares 285,652 Value ($000) $6,378 Avg Close $26.01 Range $21.81 - $32.23

Q2 2022

Shares 48,941 Value ($000) $1,459 Avg Close $28.72 Range $26.14 - $32.79

Q1 2022

Shares 54,315 Value ($000) $1,429 Avg Close $24.77 Range $22.72 - $28.35

Q4 2021

Shares 249,240 Value ($000) $5,798 Avg Close $26.29 Range $21.24 - $33.00

Q3 2021

Shares 73,537 Value ($000) $2,268 Avg Close $28.25 Range $23.11 - $32.53

Q2 2021

Shares 24,440 Value ($000) $600 Avg Close $22.25 Range $18.43 - $25.47

Q1 2021

Shares 110,445 Value ($000) $2,064 Avg Close $20.47 Range $18.02 - $23.92

Q4 2020

Shares 23,503 Value ($000) $468 Avg Close $18.28 Range $15.35 - $22.22

Q3 2020

Shares 28,156 Value ($000) $467 Avg Close $18.17 Range $15.68 - $20.85

Q2 2020

Shares 74,656 Value ($000) $1,449 Avg Close $16.23 Range $13.03 - $19.86

Q1 2020

Shares 116,539 Value ($000) $1,681 Avg Close $17.85 Range $11.98 - $21.46

Q4 2019

Shares 215,175 Value ($000) $4,389 Avg Close $19.88 Range $17.11 - $21.88

Q3 2019

Shares 262,338 Value ($000) $5,118 Avg Close $21.76 Range $18.69 - $25.35

Q2 2019

Shares 430,947 Value ($000) $9,714 Avg Close $27.41 Range $21.29 - $37.75

Q1 2019

Shares 72,277 Value ($000) $2,638 Avg Close $33.02 Range $28.19 - $36.56

Q4 2018

Shares 50,546 Value ($000) $1,492 Avg Close $36.92 Range $27.54 - $45.16

Q3 2018

Shares 83,427 Value ($000) $3,540 Avg Close $43.40 Range $38.23 - $46.98

Q2 2018

Shares 28,993 Value ($000) $1,192 Avg Close $45.54 Range $39.54 - $51.70

Q1 2018

Shares 59,058 Value ($000) $3,424 Avg Close $58.50 Range $51.68 - $71.22

Q4 2017

Shares 28,074 Value ($000) $1,536 Avg Close $51.03 Range $46.43 - $56.58

Q3 2017

Shares 31,705 Value ($000) $1,611 Avg Close $53.48 Range $48.90 - $61.31

Q2 2017

Shares 21,395 Value ($000) $1,241 Avg Close $58.09 Range $53.64 - $63.40

Q1 2017

Shares 43,974 Value ($000) $2,573 Avg Close $56.71 Range $51.08 - $62.50

Q4 2016

Shares 49,864 Value ($000) $2,772 Avg Close $53.46 Range $41.93 - $60.74

Q3 2016

Shares 44,354 Value ($000) $2,086 Avg Close $47.55 Range $43.26 - $52.27

Q2 2016

Shares 19,224 Value ($000) $830 Avg Close $41.26 Range $33.31 - $47.90

Q1 2016

Shares 52,649 Value ($000) $1,791 Avg Close $39.49 Range $27.14 - $78.88

Q4 2015

Shares 16,797 Value ($000) $1,328 Avg Close $70.02 Range $54.36 - $80.71

Q3 2015

Shares 58,498 Value ($000) $3,391 Avg Close $66.02 Range $53.01 - $73.33

Q2 2015

Shares 84,431 Value ($000) $5,405 Avg Close $61.20 Range $54.54 - $68.23

Q1 2015

Shares 17,961 Value ($000) $1,077 Avg Close $68.32 Range $57.31 - $75.17

Q4 2014

Shares 81,822 Value ($000) $4,745 Avg Close $50.94 Range $38.49 - $59.69

Q3 2014

Shares 25,044 Value ($000) $1,052 Avg Close $44.82 Range $41.02 - $52.50

Q2 2014

Shares 38,424 Value ($000) $1,920 Avg Close $46.12 Range $40.30 - $51.81

Q1 2014

Shares 205,117 Value ($000) $9,025 Avg Close $47.58 Range $39.68 - $54.25

Q4 2013

Shares 7,501 Value ($000) $300 Avg Close $36.93 Range $29.36 - $41.47

Q2 2013

Shares 132,946 Value ($000) $3,813 Avg Close $29.15 Range $22.17 - $34.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	565,033	$15,810	$29.95	$27.49 - $36.32
Q3 2025	423,931	$11,866	$28.20	$25.17 - $31.69
Q2 2025	694,122	$19,859	$29.76	$25.56 - $33.48
Q1 2025	419,951	$13,867	$32.61	$27.70 - $36.45
Q4 2024	425,777	$12,245	$28.75	$25.67 - $32.25
Q3 2024	423,931	$12	$26.66	$22.90 - $29.02
Q2 2024	203,038	$4,893	$24.53	$23.14 - $27.56
Q1 2024	234,760	$6,355	$28.40	$26.18 - $32.88
Q4 2023	428,269	$11,880	$25.98	$22.01 - $29.02
Q3 2023	228,388	$6,397	$29.32	$25.68 - $32.57
Q2 2023	204,877	$6	$30.28	$27.68 - $33.71
Q1 2023	280,393	$8	$27.24	$25.00 - $29.49
Q4 2022	317,786	$8	$23.93	$21.75 - $26.34
Q3 2022	285,652	$6,378	$26.01	$21.81 - $32.23
Q2 2022	48,941	$1,459	$28.72	$26.14 - $32.79
Q1 2022	54,315	$1,429	$24.77	$22.72 - $28.35
Q4 2021	249,240	$5,798	$26.29	$21.24 - $33.00
Q3 2021	73,537	$2,268	$28.25	$23.11 - $32.53
Q2 2021	24,440	$600	$22.25	$18.43 - $25.47
Q1 2021	110,445	$2,064	$20.47	$18.02 - $23.92
Q4 2020	23,503	$468	$18.28	$15.35 - $22.22
Q3 2020	28,156	$467	$18.17	$15.68 - $20.85
Q2 2020	74,656	$1,449	$16.23	$13.03 - $19.86
Q1 2020	116,539	$1,681	$17.85	$11.98 - $21.46
Q4 2019	215,175	$4,389	$19.88	$17.11 - $21.88
Q3 2019	262,338	$5,118	$21.76	$18.69 - $25.35
Q2 2019	430,947	$9,714	$27.41	$21.29 - $37.75
Q1 2019	72,277	$2,638	$33.02	$28.19 - $36.56
Q4 2018	50,546	$1,492	$36.92	$27.54 - $45.16
Q3 2018	83,427	$3,540	$43.40	$38.23 - $46.98
Q2 2018	28,993	$1,192	$45.54	$39.54 - $51.70
Q1 2018	59,058	$3,424	$58.50	$51.68 - $71.22
Q4 2017	28,074	$1,536	$51.03	$46.43 - $56.58
Q3 2017	31,705	$1,611	$53.48	$48.90 - $61.31
Q2 2017	21,395	$1,241	$58.09	$53.64 - $63.40
Q1 2017	43,974	$2,573	$56.71	$51.08 - $62.50
Q4 2016	49,864	$2,772	$53.46	$41.93 - $60.74
Q3 2016	44,354	$2,086	$47.55	$43.26 - $52.27
Q2 2016	19,224	$830	$41.26	$33.31 - $47.90
Q1 2016	52,649	$1,791	$39.49	$27.14 - $78.88
Q4 2015	16,797	$1,328	$70.02	$54.36 - $80.71
Q3 2015	58,498	$3,391	$66.02	$53.01 - $73.33
Q2 2015	84,431	$5,405	$61.20	$54.54 - $68.23
Q1 2015	17,961	$1,077	$68.32	$57.31 - $75.17
Q4 2014	81,822	$4,745	$50.94	$38.49 - $59.69
Q3 2014	25,044	$1,052	$44.82	$41.02 - $52.50
Q2 2014	38,424	$1,920	$46.12	$40.30 - $51.81
Q1 2014	205,117	$9,025	$47.58	$39.68 - $54.25
Q4 2013	7,501	$300	$36.93	$29.36 - $41.47
Q2 2013	132,946	$3,813	$29.15	$22.17 - $34.30