ALLEGRO MICROSYSTEMS INC

Ticker: ALGM CUSIP: 01749D105 Class: Common Stock

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

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

Q4 2025

Shares 97,609 Value ($000) $2,575 Avg Close $27.52 Range $22.41 - $33.84

Q3 2025

Shares 111,839 Value ($000) $3,266 Avg Close $32.34 Range $28.85 - $38.45

Q2 2025

Shares 116,652 Value ($000) $3,988 Avg Close $24.91 Range $16.38 - $34.30

Q1 2025

Shares 151,993 Value ($000) $3,820 Avg Close $24.96 Range $21.16 - $29.45

Q4 2024

Shares 115,835 Value ($000) $2,532 Avg Close $21.30 Range $18.59 - $24.14

Q3 2024

Shares 159,644 Value ($000) $3,720 Avg Close $25.14 Range $20.42 - $33.26

Q2 2024

Shares 156,788 Value ($000) $4,428 Avg Close $28.47 Range $23.64 - $31.82

Q1 2024

Shares 158,587 Value ($000) $4,276 Avg Close $28.90 Range $25.00 - $32.63

Q4 2023

Shares 173,572 Value ($000) $5,254 Avg Close $28.56 Range $24.66 - $32.19

Q3 2023

Shares 125,078 Value ($000) $3,995 Avg Close $40.63 Range $31.31 - $53.05

Q2 2023

Shares 93,737 Value ($000) $4,231 Avg Close $40.49 Range $34.19 - $48.72

Q1 2023

Shares 88,414 Value ($000) $4,243 Avg Close $40.69 Range $28.84 - $48.30

Q4 2022

Shares 101,045 Value ($000) $3,033 Avg Close $27.28 Range $19.80 - $34.14

Q3 2022

Shares 128,558 Value ($000) $2,809 Avg Close $23.21 Range $19.20 - $26.85

Q2 2022

Shares 119,249 Value ($000) $2,467 Avg Close $23.87 Range $20.08 - $28.93

Q1 2022

Shares 106,653 Value ($000) $3,029 Avg Close $28.58 Range $24.81 - $37.29

Q1 2021

Shares 36,766 Value ($000) $932 Avg Close $28.59 Range $23.39 - $34.66

Q4 2020

Shares 70,410 Value ($000) $1,877 Avg Close $24.19 Range $16.78 - $29.48

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	97,609	$2,575	$27.52	$22.41 - $33.84
Q3 2025	111,839	$3,266	$32.34	$28.85 - $38.45
Q2 2025	116,652	$3,988	$24.91	$16.38 - $34.30
Q1 2025	151,993	$3,820	$24.96	$21.16 - $29.45
Q4 2024	115,835	$2,532	$21.30	$18.59 - $24.14
Q3 2024	159,644	$3,720	$25.14	$20.42 - $33.26
Q2 2024	156,788	$4,428	$28.47	$23.64 - $31.82
Q1 2024	158,587	$4,276	$28.90	$25.00 - $32.63
Q4 2023	173,572	$5,254	$28.56	$24.66 - $32.19
Q3 2023	125,078	$3,995	$40.63	$31.31 - $53.05
Q2 2023	93,737	$4,231	$40.49	$34.19 - $48.72
Q1 2023	88,414	$4,243	$40.69	$28.84 - $48.30
Q4 2022	101,045	$3,033	$27.28	$19.80 - $34.14
Q3 2022	128,558	$2,809	$23.21	$19.20 - $26.85
Q2 2022	119,249	$2,467	$23.87	$20.08 - $28.93
Q1 2022	106,653	$3,029	$28.58	$24.81 - $37.29
Q1 2021	36,766	$932	$28.59	$23.39 - $34.66
Q4 2020	70,410	$1,877	$24.19	$16.78 - $29.48