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Alpha and Omega Semiconductor Limited (AOSL)

Alpha and Omega Semiconductor Limited at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Alpha and Omega Semiconductor Limited (AOSL) is a Semiconductors company based in US with a market capitalization of $1.4B. Revenue grew 5.9% year-over-year and free cash flow was negative at -$7.5M. This page tracks AOSL's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 2.33K employees · IPO Apr 29, 2010

Valuation

Valuation & price

$38.87 · as of May 17, 2026 · -27.1% vs 52w high

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P/E ratio

Latest-FY diluted EPS

1.69

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$52.72$35.26$17.80Jul 25Dec 25Jul 26Jul 7, 25$26.57Jul 9, 25$27.61Jul 11, 25$27.64Jul 15, 25$27.14Jul 17, 25$28.18Jul 21, 25$28.89Jul 23, 25$28.52Jul 25, 25$27.29Jul 29, 25$27.41Jul 31, 25$25.47Aug 4, 25$26.13Aug 6, 25$26.20Aug 11, 25$25.28Aug 13, 25$27.66Aug 15, 25$26.50Aug 19, 25$26.40Aug 21, 25$26.72Aug 25, 25$28.09Aug 27, 25$29.61Aug 29, 25$28.77Sep 3, 25$27.79Sep 5, 25$27.95Sep 9, 25$27.89Sep 11, 25$29.16Sep 16, 25$28.49Sep 18, 25$29.47Sep 22, 25$30.69Sep 24, 25$30.13Sep 26, 25$28.47Sep 30, 25$27.96Oct 2, 25$27.39Oct 6, 25$28.04Oct 8, 25$27.93Oct 10, 25$25.66Oct 14, 25$30.13Oct 16, 25$30.99Oct 21, 25$31.32Oct 23, 25$29.32Oct 27, 25$30.55Oct 29, 25$28.69Oct 31, 25$28.06Nov 4, 25$26.30Nov 6, 25$19.65Nov 10, 25$19.92Nov 12, 25$19.00Nov 14, 25$18.46Nov 18, 25$17.80Nov 20, 25$18.17Nov 25, 25$20.58Nov 28, 25$20.28Dec 2, 25$20.65Dec 4, 25$21.48Dec 8, 25$21.66Dec 10, 25$22.22Dec 12, 25$20.35Dec 16, 25$20.17Dec 18, 25$20.10Dec 22, 25$20.31Dec 24, 25$20.21Dec 29, 25$20.11Jan 2, 26$20.66Jan 6, 26$22.61Jan 8, 26$21.96Jan 12, 26$22.22Jan 14, 26$22.00Jan 16, 26$22.51Jan 21, 26$22.97Jan 23, 26$22.03Jan 27, 26$22.25Jan 29, 26$22.50Feb 2, 26$22.36Feb 4, 26$22.27Feb 9, 26$20.98Feb 11, 26$20.96Feb 13, 26$22.65Feb 18, 26$22.35Feb 20, 26$22.38Feb 24, 26$22.05Feb 26, 26$21.94Mar 2, 26$21.58Mar 4, 26$20.42Mar 6, 26$19.86Mar 10, 26$20.12Mar 12, 26$21.20Mar 17, 26$21.22Mar 19, 26$21.63Mar 23, 26$21.86Mar 25, 26$23.31Mar 27, 26$22.05Mar 31, 26$22.16Apr 2, 26$22.71Apr 7, 26$23.07Apr 9, 26$25.27Apr 13, 26$27.39Apr 15, 26$31.21Apr 17, 26$33.88Apr 22, 26$40.68Apr 24, 26$44.45Apr 28, 26$39.57Apr 30, 26$43.43May 4, 26$42.18May 6, 26$49.33May 8, 26$37.90May 12, 26$37.72May 14, 26$41.10May 18, 26$38.53May 20, 26$40.60May 22, 26$41.72May 28, 26$49.34Jun 1, 26$43.88Jun 3, 26$52.72Jun 5, 26$42.01Jun 9, 26$41.03Jun 11, 26$43.33Jun 15, 26$47.36Jun 17, 26$43.15Jun 22, 26$49.36Jun 24, 26$41.98Jun 26, 26$43.99Jul 2, 26$37.11
$17.4752-week range$53.32
Loading valuation history…

Fundamentals

Key fundamentals

$1.4B

Market cap

5.9%

Revenue growth (YoY)

23.1%

Gross margin

-$7.5M

Free cash flow (USD)

-$102.2M

Net debt

Net cash position

4.1%

Share dilution

3/5

Graham criteria passed

Defensive-investor screen

Technology

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$335.7MFY 2017$383.3MFY 2018$421.6MFY 2019$450.9MFY 2020$464.9MFY 2021$656.9MFY 2022$777.6MFY 2023$691.3MFY 2024$657.3MFY 2025$696.2M
$335.7M$696.2M

Free cash flow by year

2016 → 2025

FY 2016$18.3MFY 2017$-12.9MFY 2018$-190.7MFY 2019$-81.0MFY 2020$-83.0KFY 2021$56.0MFY 2022$80.9MFY 2023$-90.0MFY 2024$-11.4MFY 2025$-7.5M
$18.3M-$7.5M

Gross margin by year

2021 → 2025

FY 202131.1%FY 202234.5%FY 202328.9%FY 202426.2%FY 202523.1%
31.1%23.1%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

8

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 6, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Insider sellInsider Sell $231K · 10b5-1 PlanXue Bing · EVP-WW Sales & Bus Development · $231.5KJun 17, 2026Filing
  • Insider sellInsider Sell $161K · 10b5-1 PlanChen Claudia · Director · $160.5KMay 26, 2026Filing
  • Insider sellInsider Sell $202K · 10b5-1 PlanXue Bing · EVP-WW Sales & Bus Development · $201.6KMay 20, 2026Filing
  • 8-K eventAcquisition CompletedMay 12, 2026Filing
  • 8-K eventEarnings ReleaseMay 6, 2026Filing
  • Quarterly report10-Q FiledMay 6, 2026Filing
  • Insider sellInsider Sell $57K · 10b5-1 PlanXue Bing · EVP-WW Sales & Bus Development · $57.2KApr 20, 2026Filing
  • Insider sellInsider Sell $513K · 10b5-1 PlanChang Stephen Chunping · Director, Chief Executive Officer · $513KApr 20, 2026Filing
  • Insider sellInsider Sell $302K · 10b5-1 PlanLiang Yifan · CFO and Corp Secretary · $301.9KApr 20, 2026Filing
  • 8-K eventDirector RetirementApr 17, 2026Filing

Questions

Frequently asked questions

What is Alpha and Omega Semiconductor Limited's market cap?

Alpha and Omega Semiconductor Limited (AOSL) has a market capitalization of $1.4B.

What is AOSL's P/E ratio?

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

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

AOSL trades at 1.69 times book value per share.

Are insiders buying AOSL stock?

SEC Form 4 filings show no open-market insider buys at Alpha and Omega Semiconductor Limited in the last 90 days (8 sells).

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Timeline

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

Filing Analyzer

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News

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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.