ALGM · Nasdaq · CIK 0000866291

ALLEGRO MICROSYSTEMS, INC.

ALLEGRO MICROSYSTEMS, INC.’s most recent SEC filing in our snapshot is a Form SCHEDULE 13G/A filed on Oct 7, 2026. In fiscal 2026 (year ended Mar 27, 2026) it reported revenue of $890.1M and net income of -$14.9M, according to its XBRL data on EDGAR. Its EDGAR record lists 43 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2026
$890.1M
Net income, FY2026
-$14.9M
Form 4 filings on record, past 12 months
43

Company overview

Legal name (as filed)
ALLEGRO MICROSYSTEMS, INC.
Ticker
ALGM
SEC Central Index Key (CIK)
0000866291
Industry (SIC)
Semiconductors & Related Devices (code 3674)
Business address
MANCHESTER, NH
State or country of incorporation
—
Fiscal year ends
March 31
SEC filer category
Large accelerated filer
Position in SEC ticker list
#1205 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from ALLEGRO MICROSYSTEMS, INC.’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$768.7MFY2022$973.7MFY2023$1.0BFY2024$725.0MFY2025$890.1MFY2026
Net income
$119.4MFY2022$187.4MFY2023$152.7MFY2024-$73.0MFY2025-$14.9MFY2026
ALGM annual results
ItemFY2022
ended Mar 25, 2022		FY2023
ended Mar 31, 2023		FY2024
ended Mar 29, 2024		FY2025
ended Mar 28, 2025		FY2026
ended Mar 27, 2026
Revenue$768.7M$973.7M$1.0B$725.0M$890.1M
Net income$119.4M$187.4M$152.7M-$73.0M-$14.9M
Diluted EPS$0.62$0.97$0.78-$0.39-$0.08
Total assets$892.6M$1.2B$1.5B$1.4B$1.4B
Cash and equivalents$282.4M$351.6M$212.1M$121.3M$168.8M

XBRL tags used: revenue = RevenueFromContractWithCustomerExcludingAssessedTax; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareDiluted; cash = CashAndCashEquivalentsAtCarryingValue. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

ALGM latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
May 21, 202610-KAnnual report· period Mar 27, 2026Document · Index
Jul 31, 202610-QQuarterly report· period Jun 26, 2026Document · Index
Aug 7, 20268-KShareholder vote results· period Aug 5, 2026Document · Index
Jun 24, 2026DEF 14ADefinitive proxy statement· period Aug 5, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about ALLEGRO MICROSYSTEMS, INC., by form type:

4 ×21144 ×4SCHEDULE 13G/A ×38-K ×3SCHEDULE 13G ×23 ×110-Q ×1ARS ×1DEFA14A ×1DEF 14A ×1SD ×110-K ×1
ALGM recent filings
FiledFormWhat it isOriginal
Oct 7, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Oct 1, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 30, 2026Document · Index
Aug 18, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 17, 2026Document · Index
Aug 17, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 13, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Aug 12, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 10, 2026Document · Index
Aug 10, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 7, 20268-KShareholder vote results· period Aug 5, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 5, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 5, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 5, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 5, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 5, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 5, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 5, 2026Document · Index
Aug 6, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Jul 31, 202610-QQuarterly report· period Jun 26, 2026Document · Index
Jul 30, 20268-KResults of operations· period Jul 30, 2026Document · Index
Jul 27, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Jul 16, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Jun 24, 2026ARSARS· period Mar 27, 2026Document · Index
Jun 24, 2026DEFA14AAdditional proxy soliciting materialsDocument · Index
Jun 24, 2026DEF 14ADefinitive proxy statement· period Aug 5, 2026Document · Index
Jun 18, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 17, 2026Document · Index
Jun 18, 20263Initial statement of beneficial ownership· period Jun 17, 2026Document · Index
Jun 18, 20268-KDirector or officer change; Regulation FD disclosure· period Jun 17, 2026Document · Index
Jun 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 3, 2026Document · Index
Jun 3, 2026144Notice of proposed sale of securitiesDocument · Index
May 29, 2026SDSpecialized disclosure report (conflict minerals)Document · Index
May 26, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 22, 2026144Notice of proposed sale of securitiesDocument · Index
May 22, 20264Statement of changes in beneficial ownership (insider trade)· period May 21, 2026Document · Index
May 21, 202610-KAnnual report· period Mar 27, 2026Document · Index
May 19, 20264Statement of changes in beneficial ownership (insider trade)· period May 16, 2026Document · Index
May 19, 20264Statement of changes in beneficial ownership (insider trade)· period May 16, 2026Document · Index
May 19, 20264Statement of changes in beneficial ownership (insider trade)· period May 16, 2026Document · Index
May 19, 20264Statement of changes in beneficial ownership (insider trade)· period May 16, 2026Document · Index
May 19, 20264Statement of changes in beneficial ownership (insider trade)· period May 16, 2026Document · Index
May 19, 20264Statement of changes in beneficial ownership (insider trade)· period May 16, 2026Document · Index
May 19, 20264Statement of changes in beneficial ownership (insider trade)· period May 16, 2026Document · Index

Insider filing activity

43 Form 4 filings appear in ALLEGRO MICROSYSTEMS, INC.’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

Other companies in Semiconductors & Related Devices

All 71 companies in Semiconductors & Related Devices· Companies headquartered in New Hampshire

On Amazon

Popular tools for investors

As an Amazon Associate I earn from qualifying purchases.

Electronics Plaud Note Pro AI Voice Recorder An AI voice recorder that turns earnings calls and meetings into notes. View on Amazon → Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read investing classics and long reports without eye strain. View on Amazon → Electronics Apple 2026 MacBook Air 13-inch Laptop A lightweight laptop for spreadsheets and filing research. View on Amazon →

Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0000866291 and XBRL company facts. ALLEGRO MICROSYSTEMS, INC. on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.