ALLEGRO MICROSYSTEMS INC

Ticker: ALGM CUSIP: 01749D105 Class: Common Stock

ECOFI INVESTISSEMENTS SA's Holding History (CIK: 0002034064)

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

Q3 2025

Shares 41,200 Value ($000) $1,203 Avg Close $32.34 Range $28.85 - $38.45

Q2 2025

Shares 27,100 Value ($000) $4,503 Avg Close $24.91 Range $16.38 - $34.30

Q1 2025

Shares 61,200 Value ($000) $1,315 Avg Close $24.96 Range $21.16 - $29.45

Q4 2024

Shares 61,200 Value ($000) $1,240 Avg Close $21.30 Range $18.59 - $24.14

Q3 2024

Shares 71,400 Value ($000) $1,297 Avg Close $25.14 Range $20.42 - $33.26

Q2 2024

Shares 81,400 Value ($000) $2,349 Avg Close $28.47 Range $23.64 - $31.82

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	41,200	$1,203	$32.34	$28.85 - $38.45
Q2 2025	27,100	$4,503	$24.91	$16.38 - $34.30
Q1 2025	61,200	$1,315	$24.96	$21.16 - $29.45
Q4 2024	61,200	$1,240	$21.30	$18.59 - $24.14
Q3 2024	71,400	$1,297	$25.14	$20.42 - $33.26
Q2 2024	81,400	$2,349	$28.47	$23.64 - $31.82