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Allegro MicroSystems, Inc. (ALGM)

Allegro MicroSystems, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Allegro MicroSystems, Inc. (ALGM) is a Semiconductors company based in US with a market capitalization of $9.1B. Revenue grew 22.8% year-over-year and the company generated $124.9M in free cash flow. This page tracks ALGM's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 4.59K employees · IPO Oct 29, 2020

Valuation

Valuation & price

$43.10 · as of May 17, 2026 · -38.1% vs 52w high

—

P/E ratio

Latest-FY diluted EPS

9.49

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$61.58$42.19$22.80Jul 25Dec 25Jul 26Jul 7, 25$35.40Jul 9, 25$36.89Jul 11, 25$36.76Jul 15, 25$36.47Jul 17, 25$35.79Jul 21, 25$36.69Jul 23, 25$34.08Jul 25, 25$33.70Jul 29, 25$34.01Jul 31, 25$31.41Aug 4, 25$31.47Aug 6, 25$30.81Aug 11, 25$29.81Aug 13, 25$31.86Aug 15, 25$30.70Aug 19, 25$30.64Aug 21, 25$30.88Aug 25, 25$31.76Aug 27, 25$31.46Aug 29, 25$30.85Sep 3, 25$29.83Sep 5, 25$30.57Sep 9, 25$30.92Sep 11, 25$29.97Sep 16, 25$30.13Sep 18, 25$31.95Sep 22, 25$31.42Sep 24, 25$31.07Sep 26, 25$29.71Sep 30, 25$29.20Oct 2, 25$28.41Oct 6, 25$28.22Oct 8, 25$28.28Oct 10, 25$25.92Oct 14, 25$27.61Oct 16, 25$29.33Oct 21, 25$31.05Oct 23, 25$30.99Oct 27, 25$30.48Oct 29, 25$30.74Oct 31, 25$29.92Nov 4, 25$27.44Nov 6, 25$27.21Nov 10, 25$27.60Nov 12, 25$26.47Nov 14, 25$24.71Nov 18, 25$23.21Nov 20, 25$22.80Nov 25, 25$25.74Nov 28, 25$26.69Dec 2, 25$26.52Dec 4, 25$28.82Dec 8, 25$28.75Dec 10, 25$29.27Dec 12, 25$27.11Dec 16, 25$26.24Dec 18, 25$26.42Dec 22, 25$26.75Dec 24, 25$26.95Dec 29, 25$26.53Jan 2, 26$26.91Jan 6, 26$31.53Jan 8, 26$31.30Jan 12, 26$30.17Jan 14, 26$32.25Jan 16, 26$33.35Jan 21, 26$33.99Jan 23, 26$32.99Jan 27, 26$32.66Jan 29, 26$37.98Feb 2, 26$37.43Feb 4, 26$38.20Feb 9, 26$41.99Feb 11, 26$42.81Feb 13, 26$42.38Feb 18, 26$38.59Feb 20, 26$38.93Feb 24, 26$39.04Feb 26, 26$36.77Mar 2, 26$36.59Mar 4, 26$34.07Mar 6, 26$31.93Mar 10, 26$33.17Mar 12, 26$31.16Mar 17, 26$32.06Mar 19, 26$30.91Mar 23, 26$31.74Mar 25, 26$32.63Mar 27, 26$30.12Mar 31, 26$31.53Apr 2, 26$32.60Apr 7, 26$33.28Apr 9, 26$37.02Apr 13, 26$38.04Apr 15, 26$37.25Apr 17, 26$40.00Apr 22, 26$42.27Apr 24, 26$44.13Apr 28, 26$41.12Apr 30, 26$48.50May 4, 26$49.48May 6, 26$51.37May 8, 26$48.95May 12, 26$45.87May 14, 26$44.97May 18, 26$41.35May 20, 26$44.33May 22, 26$45.95May 28, 26$51.10Jun 1, 26$47.13Jun 3, 26$53.11Jun 5, 26$46.39Jun 9, 26$46.63Jun 11, 26$47.96Jun 15, 26$55.00Jun 17, 26$53.98Jun 22, 26$61.58Jun 24, 26$55.42Jun 26, 26$57.89Jul 2, 26$55.48
$22.8052-week range$69.62
Loading valuation history…

Fundamentals

Key fundamentals

$9.1B

Market cap

22.8%

Revenue growth (YoY)

46.4%

Gross margin

$124.9M

Free cash flow (USD)

$118.5M

Net debt

-1.3%

Share dilution

2/5

Graham criteria passed

Defensive-investor screen

Technology

Sector

Trajectory

Long-term trends

Revenue by year

2019 → 2026

FY 2019$724.3MFY 2020$650.1MFY 2021$591.2MFY 2022$768.7MFY 2023$973.7MFY 2024$1.0BFY 2025$725.0MFY 2026$890.1M
$724.3M$890.1M

Free cash flow by year

2019 → 2026

FY 2019$22.8MFY 2020$35.8MFY 2021$79.9MFY 2022$86.2MFY 2023$113.4MFY 2024$56.9MFY 2025$22.0MFY 2026$124.9M
$22.8M$124.9M

Gross margin by year

2022 → 2026

FY 202253.0%FY 202356.1%FY 202454.8%FY 202544.4%FY 202646.4%
53.0%46.4%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

7

Insider sells · 90 days

Earnings

Last report: 10-K filed May 21, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventDirector AppointmentJun 18, 2026Filing
  • Insider sellInsider Sell $264KMadormo Richard · SVP, Worldwide Sales · $263.6KJun 4, 2026Filing
  • Insider sellInsider Sell $206KColeman Troy · SVP, General Manager, Products · $205.7KMay 26, 2026Filing
  • Insider sellInsider Sell $234KWebster Roald Graham · VP, Chief Accounting Officer · $234.2KMay 22, 2026Filing
  • Annual report10-K FiledMay 21, 2026Filing
  • Insider sellInsider Sell $110KKent Ian · SVP, Global Operations · $109.8KMay 19, 2026Filing
  • Insider sellInsider Sell $760KLynch Susan D · Director · $759.6KMay 15, 2026Filing
  • Insider sellInsider Sell $1.4MDoogue Michael · Director, President and CEO · $1.4MMay 13, 2026Filing
  • Insider sellInsider Sell $425KBriansky Sharon · SVP, GC and Secretary · $425.4KMay 13, 2026Filing
  • 8-K eventBoard Member ChangesMay 13, 2026Filing

Questions

Frequently asked questions

What is Allegro MicroSystems, Inc.'s market cap?

Allegro MicroSystems, Inc. (ALGM) has a market capitalization of $9.1B.

What is ALGM's P/E ratio?

A meaningful P/E ratio is not available for ALGM — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.

What is ALGM's price-to-book (P/B) ratio?

ALGM trades at 9.49 times book value per share.

Are insiders buying ALGM stock?

SEC Form 4 filings show no open-market insider buys at Allegro MicroSystems, Inc. in the last 90 days (7 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

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News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.