ALLEGRO MICROSYSTEMS INC

Ticker: ALGM CUSIP: 01749D105 Class: Common Stock

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q1 2021

Shares 693,418 Value ($000) $17,578 Avg Close $28.59 Range $23.39 - $34.66

Q4 2020

Shares 782,478 Value ($000) $20,861 Avg Close $24.19 Range $16.78 - $29.48

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	693,418	$17,578	$28.59	$23.39 - $34.66
Q4 2020	782,478	$20,861	$24.19	$16.78 - $29.48