ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 1,653,475 Value ($000) $46,264 Avg Close $29.95 Range $27.49 - $36.32

Q3 2025

Shares 1,766,180 Value ($000) $52,985 Avg Close $28.20 Range $25.17 - $31.69

Q2 2025

Shares 1,813,609 Value ($000) $51,887 Avg Close $29.76 Range $25.56 - $33.48

Q1 2025

Shares 1,876,890 Value ($000) $61,975 Avg Close $32.61 Range $27.70 - $36.45

Q4 2024

Shares 1,912,132 Value ($000) $54,993 Avg Close $28.75 Range $25.67 - $32.25

Q3 2024

Shares 1,744,680 Value ($000) $48,834 Avg Close $26.66 Range $22.90 - $29.02

Q2 2024

Shares 1,772,751 Value ($000) $42,723 Avg Close $24.53 Range $23.14 - $27.56

Q1 2024

Shares 1,796,918 Value ($000) $48,643 Avg Close $28.40 Range $26.18 - $32.88

Q4 2023

Shares 1,843,831 Value ($000) $51,148 Avg Close $25.98 Range $22.01 - $29.02

Q3 2023

Shares 1,688,887 Value ($000) $47,306 Avg Close $29.32 Range $25.68 - $32.57

Q2 2023

Shares 1,675,342 Value ($000) $52,438 Avg Close $30.28 Range $27.68 - $33.71

Q1 2023

Shares 1,633,830 Value ($000) $46,058 Avg Close $27.24 Range $25.00 - $29.49

Q4 2022

Shares 1,614,919 Value ($000) $42,198 Avg Close $23.93 Range $21.75 - $26.34

Q3 2022

Shares 1,601,550 Value ($000) $35,762 Avg Close $26.01 Range $21.81 - $32.23

Q2 2022

Shares 1,614,879 Value ($000) $48,108 Avg Close $28.72 Range $26.14 - $32.79

Q1 2022

Shares 1,632,582 Value ($000) $42,953 Avg Close $24.77 Range $22.72 - $28.35

Q4 2021

Shares 1,714,561 Value ($000) $39,881 Avg Close $26.29 Range $21.24 - $33.00

Q3 2021

Shares 1,744,930 Value ($000) $53,813 Avg Close $28.25 Range $23.11 - $32.53

Q2 2021

Shares 1,783,349 Value ($000) $43,729 Avg Close $22.25 Range $18.43 - $25.47

Q1 2021

Shares 756,649 Value ($000) $14,134 Avg Close $20.47 Range $18.02 - $23.92

Q4 2020

Shares 738,725 Value ($000) $14,738 Avg Close $18.28 Range $15.35 - $22.22

Q3 2020

Shares 750,493 Value ($000) $12,435 Avg Close $18.17 Range $15.68 - $20.85

Q2 2020

Shares 782,442 Value ($000) $15,183 Avg Close $16.23 Range $13.03 - $19.86

Q1 2020

Shares 801,248 Value ($000) $11,554 Avg Close $17.85 Range $11.98 - $21.46

Q4 2019

Shares 736,832 Value ($000) $15,030 Avg Close $19.88 Range $17.11 - $21.88

Q3 2019

Shares 926,042 Value ($000) $18,067 Avg Close $21.76 Range $18.69 - $25.35

Q2 2019

Shares 932,643 Value ($000) $21,022 Avg Close $27.41 Range $21.29 - $37.75

Q1 2019

Shares 918,192 Value ($000) $33,505 Avg Close $33.02 Range $28.19 - $36.56

Q4 2018

Shares 913,916 Value ($000) $26,970 Avg Close $36.92 Range $27.54 - $45.16

Q3 2018

Shares 855,472 Value ($000) $36,305 Avg Close $43.40 Range $38.23 - $46.98

Q2 2018

Shares 876,000 Value ($000) $36,056 Avg Close $45.54 Range $39.54 - $51.70

Q1 2018

Shares 850,474 Value ($000) $49,293 Avg Close $58.50 Range $51.68 - $71.22

Q4 2017

Shares 858,753 Value ($000) $47,000 Avg Close $51.03 Range $46.43 - $56.58

Q3 2017

Shares 858,303 Value ($000) $43,636 Avg Close $53.48 Range $48.90 - $61.31

Q2 2017

Shares 854,816 Value ($000) $49,554 Avg Close $58.09 Range $53.64 - $63.40

Q1 2017

Shares 846,971 Value ($000) $49,548 Avg Close $56.71 Range $51.08 - $62.50

Q4 2016

Shares 826,343 Value ($000) $45,927 Avg Close $53.46 Range $41.93 - $60.74

Q3 2016

Shares 806,807 Value ($000) $37,943 Avg Close $47.55 Range $43.26 - $52.27

Q2 2016

Shares 774,784 Value ($000) $33,486 Avg Close $41.26 Range $33.31 - $47.90

Q1 2016

Shares 731,978 Value ($000) $26,108 Avg Close $39.49 Range $27.14 - $78.88

Q4 2015

Shares 702,547 Value ($000) $55,770 Avg Close $70.02 Range $54.36 - $80.71

Q3 2015

Shares 878,043 Value ($000) $51,515 Avg Close $66.02 Range $53.01 - $73.33

Q2 2015

Shares 893,212 Value ($000) $57,469 Avg Close $61.20 Range $54.54 - $68.23

Q1 2015

Shares 996,203 Value ($000) $60,737 Avg Close $68.32 Range $57.31 - $75.17

Q4 2014

Shares 755,994 Value ($000) $44,271 Avg Close $50.94 Range $38.49 - $59.69

Q3 2014

Shares 680,231 Value ($000) $29,161 Avg Close $44.82 Range $41.02 - $52.50

Q2 2014

Shares 604,314 Value ($000) $30,416 Avg Close $46.12 Range $40.30 - $51.81

Q1 2014

Shares 609,939 Value ($000) $26,892 Avg Close $47.58 Range $39.68 - $54.25

Q4 2013

Shares 600,244 Value ($000) $24,406 Avg Close $36.93 Range $29.36 - $41.47

Q3 2013

Shares 588,260 Value ($000) $19,777 Avg Close $32.55 Range $27.72 - $35.72

Q2 2013

Shares 1,351,804 Value ($000) $38,770 Avg Close $29.15 Range $22.17 - $34.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,653,475	$46,264	$29.95	$27.49 - $36.32
Q3 2025	1,766,180	$52,985	$28.20	$25.17 - $31.69
Q2 2025	1,813,609	$51,887	$29.76	$25.56 - $33.48
Q1 2025	1,876,890	$61,975	$32.61	$27.70 - $36.45
Q4 2024	1,912,132	$54,993	$28.75	$25.67 - $32.25
Q3 2024	1,744,680	$48,834	$26.66	$22.90 - $29.02
Q2 2024	1,772,751	$42,723	$24.53	$23.14 - $27.56
Q1 2024	1,796,918	$48,643	$28.40	$26.18 - $32.88
Q4 2023	1,843,831	$51,148	$25.98	$22.01 - $29.02
Q3 2023	1,688,887	$47,306	$29.32	$25.68 - $32.57
Q2 2023	1,675,342	$52,438	$30.28	$27.68 - $33.71
Q1 2023	1,633,830	$46,058	$27.24	$25.00 - $29.49
Q4 2022	1,614,919	$42,198	$23.93	$21.75 - $26.34
Q3 2022	1,601,550	$35,762	$26.01	$21.81 - $32.23
Q2 2022	1,614,879	$48,108	$28.72	$26.14 - $32.79
Q1 2022	1,632,582	$42,953	$24.77	$22.72 - $28.35
Q4 2021	1,714,561	$39,881	$26.29	$21.24 - $33.00
Q3 2021	1,744,930	$53,813	$28.25	$23.11 - $32.53
Q2 2021	1,783,349	$43,729	$22.25	$18.43 - $25.47
Q1 2021	756,649	$14,134	$20.47	$18.02 - $23.92
Q4 2020	738,725	$14,738	$18.28	$15.35 - $22.22
Q3 2020	750,493	$12,435	$18.17	$15.68 - $20.85
Q2 2020	782,442	$15,183	$16.23	$13.03 - $19.86
Q1 2020	801,248	$11,554	$17.85	$11.98 - $21.46
Q4 2019	736,832	$15,030	$19.88	$17.11 - $21.88
Q3 2019	926,042	$18,067	$21.76	$18.69 - $25.35
Q2 2019	932,643	$21,022	$27.41	$21.29 - $37.75
Q1 2019	918,192	$33,505	$33.02	$28.19 - $36.56
Q4 2018	913,916	$26,970	$36.92	$27.54 - $45.16
Q3 2018	855,472	$36,305	$43.40	$38.23 - $46.98
Q2 2018	876,000	$36,056	$45.54	$39.54 - $51.70
Q1 2018	850,474	$49,293	$58.50	$51.68 - $71.22
Q4 2017	858,753	$47,000	$51.03	$46.43 - $56.58
Q3 2017	858,303	$43,636	$53.48	$48.90 - $61.31
Q2 2017	854,816	$49,554	$58.09	$53.64 - $63.40
Q1 2017	846,971	$49,548	$56.71	$51.08 - $62.50
Q4 2016	826,343	$45,927	$53.46	$41.93 - $60.74
Q3 2016	806,807	$37,943	$47.55	$43.26 - $52.27
Q2 2016	774,784	$33,486	$41.26	$33.31 - $47.90
Q1 2016	731,978	$26,108	$39.49	$27.14 - $78.88
Q4 2015	702,547	$55,770	$70.02	$54.36 - $80.71
Q3 2015	878,043	$51,515	$66.02	$53.01 - $73.33
Q2 2015	893,212	$57,469	$61.20	$54.54 - $68.23
Q1 2015	996,203	$60,737	$68.32	$57.31 - $75.17
Q4 2014	755,994	$44,271	$50.94	$38.49 - $59.69
Q3 2014	680,231	$29,161	$44.82	$41.02 - $52.50
Q2 2014	604,314	$30,416	$46.12	$40.30 - $51.81
Q1 2014	609,939	$26,892	$47.58	$39.68 - $54.25
Q4 2013	600,244	$24,406	$36.93	$29.36 - $41.47
Q3 2013	588,260	$19,777	$32.55	$27.72 - $35.72
Q2 2013	1,351,804	$38,770	$29.15	$22.17 - $34.30