ALLEGRO MICROSYSTEMS INC

Ticker: ALGM CUSIP: 01749D105 Class: Common Stock

Granahan Investment Management, LLC's Holding History (CIK: 0001026710)

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

Q4 2025

Shares 89,857 Value ($000) $2,370 Avg Close $27.52 Range $22.41 - $33.84

Q1 2025

Shares 31,956 Value ($000) $803 Avg Close $24.96 Range $21.16 - $29.45

Q4 2024

Shares 201,817 Value ($000) $4,412 Avg Close $21.30 Range $18.59 - $24.14

Q3 2024

Shares 283,275 Value ($000) $6,600 Avg Close $25.14 Range $20.42 - $33.26

Q2 2024

Shares 219,404 Value ($000) $6,196 Avg Close $28.47 Range $23.64 - $31.82

Q1 2024

Shares 155,980 Value ($000) $4,205 Avg Close $28.90 Range $25.00 - $32.63

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	89,857	$2,370	$27.52	$22.41 - $33.84
Q1 2025	31,956	$803	$24.96	$21.16 - $29.45
Q4 2024	201,817	$4,412	$21.30	$18.59 - $24.14
Q3 2024	283,275	$6,600	$25.14	$20.42 - $33.26
Q2 2024	219,404	$6,196	$28.47	$23.64 - $31.82
Q1 2024	155,980	$4,205	$28.90	$25.00 - $32.63