Allegro Microsystems, Inc. SEC filings ALGM

Allegro Microsystems, Inc. has 529 filings in SEC EDGAR's recent list, going back to Aug 8, 2007. Its latest annual report, Form ARS, was filed on Jun 24, 2026 for the period ended Mar 27, 2026. The latest quarterly report (Form 10-Q) was filed on Oct 30, 2026, covering the quarter ended Sep 25, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (results of operations). The company's fiscal year ends on March 31.

Form Description Filed Period
ARS Annual report to shareholders Jun 24, 2026 Mar 27, 2026
10-K Annual report May 21, 2026 Mar 27, 2026
ARS Annual report to shareholders Jun 25, 2025 Mar 28, 2025
10-K Annual report May 22, 2025 Mar 28, 2025
ARS Annual report to shareholders Jun 26, 2024 Mar 29, 2024
10-K Annual report May 23, 2024 Mar 29, 2024
ARS Annual report to shareholders Jun 21, 2023 Mar 31, 2023
10-K Annual report May 25, 2023 Mar 31, 2023
10-K/A Amended annual report Aug 29, 2022 Mar 25, 2022
10-K Annual report May 18, 2022 Mar 25, 2022
10-K Annual report May 19, 2021 Mar 26, 2021

Showing 11 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

Company profile

Industry
Semiconductors & Related Devices (SIC 3674)
Listed as
ALGM (Nasdaq)
Fiscal year ends
March 31
Headquarters
Manchester, NH
SEC filer status
Large accelerated filer
SEC CIK
866291
Former names
ALLEGRO MICROSYSTEMS, INC. (until Oct 30, 2026); ALLEGRO MICROSYSTEMS INC (until Oct 21, 2020)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.