ALLEGRO MICROSYSTEMS INC

Ticker: ALGM CUSIP: 01749D105 Class: Common Stock

Federation des caisses Desjardins du Quebec's Holding History (CIK: 0002022297)

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

Q4 2025

Shares 2,176 Value ($000) $57 Avg Close $27.52 Range $22.41 - $33.84

Q4 2023

Shares 180 Value ($000) $5 Avg Close $28.56 Range $24.66 - $32.19

Q3 2023

Shares 300 Value ($000) $10 Avg Close $40.63 Range $31.31 - $53.05

Q2 2023

Shares 250 Value ($000) $11 Avg Close $40.49 Range $34.19 - $48.72

Q4 2022

Shares 250 Value ($000) $8 Avg Close $27.28 Range $19.80 - $34.14

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,176	$57	$27.52	$22.41 - $33.84
Q4 2023	180	$5	$28.56	$24.66 - $32.19
Q3 2023	300	$10	$40.63	$31.31 - $53.05
Q2 2023	250	$11	$40.49	$34.19 - $48.72
Q4 2022	250	$8	$27.28	$19.80 - $34.14