Sharon Briansky - 10 Dec 2025 Form 4 Insider Report for ALLEGRO MICROSYSTEMS, INC. (ALGM)

Signature
/s/ Raymond Myer, Attorney-in-Fact for Sharon S. Briansky
Issuer symbol
ALGM
Transactions as of
10 Dec 2025
Net transactions value
-$836,190
Form type
4
Filing time
12 Dec 2025, 16:16:03 UTC
Previous filing
19 May 2025
Next filing
18 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Briansky Sharon SVP, GC and Secretary 955 PERIMETER ROAD, MANCHESTER /s/ Raymond Myer, Attorney-in-Fact for Sharon S. Briansky 12 Dec 2025 0001897651

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALGM Common Stock Sale $836,190 -27,873 -19% $30.00 121,263 10 Dec 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 4, 2025. Details regarding the Reporting Person's trading plan were reported in Part II, Item 5 of the Issuer's Quarterly Report on Form 10-Q for the period ending September 26, 2025, filed with the SEC on October 31, 2025.