ALLEGRO MICROSYSTEMS INC

Ticker: ALGM CUSIP: 01749D105 Class: Common Stock

COMERICA BANK's Holding History (CIK: 0000901541)

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

Q4 2025

Shares 29,905 Value ($000) $789 Avg Close $27.52 Range $22.41 - $33.84

Q3 2025

Shares 31,947 Value ($000) $933 Avg Close $32.34 Range $28.85 - $38.45

Q2 2025

Shares 78,990 Value ($000) $2,701 Avg Close $24.91 Range $16.38 - $34.30

Q1 2025

Shares 273,170 Value ($000) $6,865 Avg Close $24.96 Range $21.16 - $29.45

Q4 2024

Shares 649,735 Value ($000) $14,203 Avg Close $21.30 Range $18.59 - $24.14

Q3 2024

Shares 580,631 Value ($000) $13,529 Avg Close $25.14 Range $20.42 - $33.26

Q2 2024

Shares 330,188 Value ($000) $9,325 Avg Close $28.47 Range $23.64 - $31.82

Q1 2024

Shares 29,579 Value ($000) $797 Avg Close $28.90 Range $25.00 - $32.63

Q4 2023

Shares 30,221 Value ($000) $915 Avg Close $28.56 Range $24.66 - $32.19

Q3 2023

Shares 32,552 Value ($000) $1,040 Avg Close $40.63 Range $31.31 - $53.05

Q4 2022

Shares 29,463 Value ($000) $1 Avg Close $27.28 Range $19.80 - $34.14

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	29,905	$789	$27.52	$22.41 - $33.84
Q3 2025	31,947	$933	$32.34	$28.85 - $38.45
Q2 2025	78,990	$2,701	$24.91	$16.38 - $34.30
Q1 2025	273,170	$6,865	$24.96	$21.16 - $29.45
Q4 2024	649,735	$14,203	$21.30	$18.59 - $24.14
Q3 2024	580,631	$13,529	$25.14	$20.42 - $33.26
Q2 2024	330,188	$9,325	$28.47	$23.64 - $31.82
Q1 2024	29,579	$797	$28.90	$25.00 - $32.63
Q4 2023	30,221	$915	$28.56	$24.66 - $32.19
Q3 2023	32,552	$1,040	$40.63	$31.31 - $53.05
Q4 2022	29,463	$1	$27.28	$19.80 - $34.14