ALLEGRO MICROSYSTEMS INC

Ticker: ALGM CUSIP: 01749D105 Class: Common Stock

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025

Shares 96,911 Value ($000) $2,557 Avg Close $27.52 Range $22.41 - $33.84

Q3 2025

Shares 88,128 Value ($000) $2,573 Avg Close $32.34 Range $28.85 - $38.45

Q2 2025

Shares 86,352 Value ($000) $2,952 Avg Close $24.91 Range $16.38 - $34.30

Q1 2025

Shares 382,662 Value ($000) $9,616 Avg Close $24.96 Range $21.16 - $29.45

Q4 2024

Shares 373,395 Value ($000) $8,162 Avg Close $21.30 Range $18.59 - $24.14

Q3 2024

Shares 380,555 Value ($000) $8,867 Avg Close $25.14 Range $20.42 - $33.26

Q2 2024

Shares 165,882 Value ($000) $4,685 Avg Close $28.47 Range $23.64 - $31.82

Q1 2024

Shares 160,814 Value ($000) $4,336 Avg Close $28.90 Range $25.00 - $32.63

Q4 2023

Shares 164,400 Value ($000) $4,976 Avg Close $28.56 Range $24.66 - $32.19

Q3 2023

Shares 391,144 Value ($000) $12,494 Avg Close $40.63 Range $31.31 - $53.05

Q2 2023

Shares 274,541 Value ($000) $12,393 Avg Close $40.49 Range $34.19 - $48.72

Q1 2023

Shares 299,776 Value ($000) $14,386 Avg Close $40.69 Range $28.84 - $48.30

Q4 2022

Shares 154,193 Value ($000) $4,629 Avg Close $27.28 Range $19.80 - $34.14

Q3 2022

Shares 498,442 Value ($000) $10,891 Avg Close $23.21 Range $19.20 - $26.85

Q2 2022

Shares 471,648 Value ($000) $9,756 Avg Close $23.87 Range $20.08 - $28.93

Q1 2022

Shares 133,265 Value ($000) $3,784 Avg Close $28.58 Range $24.81 - $37.29

Q4 2021

Shares 162,224 Value ($000) $5,861 Avg Close $32.55 Range $29.41 - $38.28

Q3 2021

Shares 42,739 Value ($000) $1,329 Avg Close $29.47 Range $24.29 - $36.85

Q2 2021

Shares 44,587 Value ($000) $1,236 Avg Close $26.09 Range $22.05 - $28.27

Q1 2021

Shares 18,995 Value ($000) $482 Avg Close $28.59 Range $23.39 - $34.66

Q4 2020

Shares 10,016 Value ($000) $267 Avg Close $24.19 Range $16.78 - $29.48

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	96,911	$2,557	$27.52	$22.41 - $33.84
Q3 2025	88,128	$2,573	$32.34	$28.85 - $38.45
Q2 2025	86,352	$2,952	$24.91	$16.38 - $34.30
Q1 2025	382,662	$9,616	$24.96	$21.16 - $29.45
Q4 2024	373,395	$8,162	$21.30	$18.59 - $24.14
Q3 2024	380,555	$8,867	$25.14	$20.42 - $33.26
Q2 2024	165,882	$4,685	$28.47	$23.64 - $31.82
Q1 2024	160,814	$4,336	$28.90	$25.00 - $32.63
Q4 2023	164,400	$4,976	$28.56	$24.66 - $32.19
Q3 2023	391,144	$12,494	$40.63	$31.31 - $53.05
Q2 2023	274,541	$12,393	$40.49	$34.19 - $48.72
Q1 2023	299,776	$14,386	$40.69	$28.84 - $48.30
Q4 2022	154,193	$4,629	$27.28	$19.80 - $34.14
Q3 2022	498,442	$10,891	$23.21	$19.20 - $26.85
Q2 2022	471,648	$9,756	$23.87	$20.08 - $28.93
Q1 2022	133,265	$3,784	$28.58	$24.81 - $37.29
Q4 2021	162,224	$5,861	$32.55	$29.41 - $38.28
Q3 2021	42,739	$1,329	$29.47	$24.29 - $36.85
Q2 2021	44,587	$1,236	$26.09	$22.05 - $28.27
Q1 2021	18,995	$482	$28.59	$23.39 - $34.66
Q4 2020	10,016	$267	$24.19	$16.78 - $29.48