ALLEGRO MICROSYSTEMS, INC.

Quarterly Report for period ending 2023-12-29

Quarterly Report for period ending 2023-09-29

Quarterly Report for period ending 2023-06-30

Annual Report for period ending 2023-03-31

Quarterly Report for period ending 2022-12-23

Quarterly Report for period ending 2022-09-23

Annual Report for period ending 2022-03-25

Quarterly Report for period ending 2022-06-24

Annual Report for period ending 2022-03-25

Quarterly Report for period ending 2021-12-24

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Filing for proposed sale of securities under Rule 144

Filing for proposed sale of securities under Rule 144

Filing for proposed sale of securities under Rule 144

Annual report to security holders

Specialized Disclosure Report filed pursuant to Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act relating to the use of conflict minerals (Rule 13p-1)

Notice of Effectiveness

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

Certification by an exchange approving securities for listing

Form for the registration / listing of a class of securities on a national securities exchange pursuant to Section 12(b)

SCHORR PAUL IV: Statement of changes in beneficial ownership of securities

Briansky Sharon: Statement of changes in beneficial ownership of securities

D'Antilio Derek: Statement of changes in beneficial ownership of securities

FMR LLC: Major Shareholders

OEP SKNA, L.P.: Major Shareholders

Valente Joanne: Statement of changes in beneficial ownership of securities

Doogue Michael: Statement of changes in beneficial ownership of securities

Glover Max R.: Statement of changes in beneficial ownership of securities

Nargolwala Vineet A: Statement of changes in beneficial ownership of securities

Lynch Susan D: Statement of changes in beneficial ownership of securities

Prospectus filed pursuant to Rule 424(b)(7)

Automatic shelf registration statement of securities of well-known seasoned issuers

Filing under Securities Act Rules 163/433 of free writing prospectuses

Prospectus filed pursuant to Rule 424(b)(4)

A new registration statement filed under Rule 462(b) to add securities to a prior related effective registration statement filed on Form S-1

General form of registration statement for all companies including face-amount certificate companies

Draft registration statement submitted by Emerging Growth Company under Securities Act Section 6(e) or by Foreign Private Issuer under Division of Corporation Finance policy

Prospectus filed pursuant to Rule 424(b)(4)

Initial registration statement for securities to be offered to employees pursuant to employee benefit plans

General form of registration statement for all companies including face-amount certificate companies

Definitive proxy statements

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive proxy statements

Definitive proxy statements

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.