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Axcelis Technologies, Inc. (ACLS)

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

Axcelis Technologies, Inc. (ACLS) is a Semiconductors company based in US with a market capitalization of $4.6B. Revenue declined 17.6% year-over-year and the company generated $107M in free cash flow. This page tracks ACLS's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 1.52K employees · IPO Jul 11, 2000

Valuation

Valuation & price

$161.64 · as of May 15, 2026 · -15.6% vs 52w high

42.6

P/E ratio

Latest-FY diluted EPS

4.49

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$192$130$67.69Jul 25Dec 25Jul 26Jul 7, 25$70.95Jul 9, 25$74.37Jul 11, 25$74.86Jul 15, 25$71.75Jul 17, 25$71.52Jul 21, 25$74.54Jul 23, 25$74.84Jul 25, 25$73.40Jul 29, 25$73.17Jul 31, 25$67.69Aug 4, 25$70.88Aug 6, 25$75.72Aug 11, 25$78.00Aug 13, 25$84.97Aug 15, 25$80.51Aug 19, 25$80.20Aug 21, 25$78.51Aug 25, 25$80.38Aug 27, 25$81.92Aug 29, 25$80.04Sep 3, 25$78.69Sep 5, 25$80.61Sep 9, 25$83.08Sep 11, 25$86.36Sep 16, 25$89.81Sep 18, 25$96.66Sep 22, 25$100.44Sep 24, 25$97.16Sep 26, 25$97.48Sep 30, 25$97.64Oct 2, 25$93.57Oct 6, 25$87.69Oct 8, 25$84.47Oct 10, 25$79.19Oct 14, 25$80.38Oct 16, 25$83.62Oct 21, 25$83.29Oct 23, 25$84.36Oct 27, 25$83.25Oct 29, 25$83.14Oct 31, 25$79.56Nov 4, 25$80.51Nov 6, 25$82.14Nov 10, 25$87.42Nov 12, 25$85.42Nov 14, 25$81.54Nov 18, 25$77.70Nov 20, 25$74.12Nov 25, 25$82.75Nov 28, 25$82.77Dec 2, 25$82.43Dec 4, 25$89.10Dec 8, 25$91.14Dec 10, 25$90.34Dec 12, 25$85.61Dec 16, 25$86.32Dec 18, 25$81.13Dec 22, 25$83.15Dec 24, 25$82.80Dec 29, 25$81.82Jan 2, 26$86.12Jan 6, 26$93.90Jan 8, 26$89.89Jan 12, 26$95.72Jan 14, 26$93.22Jan 16, 26$93.12Jan 21, 26$93.42Jan 23, 26$91.12Jan 27, 26$91.04Jan 29, 26$92.20Feb 2, 26$88.81Feb 4, 26$82.76Feb 9, 26$85.47Feb 11, 26$91.82Feb 13, 26$94.55Feb 18, 26$82.01Feb 20, 26$80.16Feb 24, 26$81.77Feb 26, 26$83.58Mar 2, 26$86.58Mar 4, 26$86.62Mar 6, 26$82.24Mar 10, 26$85.82Mar 12, 26$85.18Mar 17, 26$85.15Mar 19, 26$87.12Mar 23, 26$85.77Mar 25, 26$100.85Mar 27, 26$97.35Mar 31, 26$93.08Apr 2, 26$95.09Apr 7, 26$96.87Apr 9, 26$108.24Apr 13, 26$110.74Apr 15, 26$117.88Apr 17, 26$118.73Apr 22, 26$139.93Apr 24, 26$143.13Apr 28, 26$134.02Apr 30, 26$139.11May 4, 26$141.87May 6, 26$171.00May 8, 26$163.03May 12, 26$161.64May 14, 26$161.64May 18, 26$146.24May 20, 26$149.56May 22, 26$156.94May 28, 26$155.55Jun 1, 26$150.42Jun 3, 26$159.19Jun 5, 26$147.16Jun 9, 26$164.57Jun 11, 26$173.57Jun 15, 26$191.60Jun 17, 26$175.45Jun 22, 26$183.92Jun 24, 26$168.91Jun 26, 26$173.23Jul 2, 26$146.49
$67.6952-week range$191.60
Loading valuation history…

Fundamentals

Key fundamentals

$4.6B

Market cap

-17.6%

Revenue growth (YoY)

44.9%

Gross margin

$107M

Free cash flow (USD)

-$331.9M

Net debt

Net cash position

-3.0%

Share dilution

3/4

Graham criteria passed

Defensive-investor screen

Technology

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$267.0MFY 2017$410.6MFY 2018$442.6MFY 2019$343.0MFY 2020$474.6MFY 2021$662.4MFY 2022$920.0MFY 2023$1.1BFY 2024$1.0BFY 2025$839.0M
$267M$839M

Free cash flow by year

2016 → 2025

FY 2016$-11.3MFY 2017$49.0MFY 2018$42.3MFY 2019$-25.6MFY 2020$62.3MFY 2021$141.5MFY 2022$204.9MFY 2023$136.2MFY 2024$128.6MFY 2025$107.0M
-$11.3M$107M

Gross margin by year

2021 → 2025

FY 202143.2%FY 202243.7%FY 202343.5%FY 202444.7%FY 202544.9%
43.2%44.9%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

17

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 8, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Insider sellInsider Sell $250KSayiner Necip · Director · $249.7KJun 4, 2026Filing
  • Insider sellInsider Sell $179KMahoney Robert John · EVP Global Operations · $179.3KJun 3, 2026Filing
  • Insider sellInsider Sell $320KSutton Todd · VP Corporate Controller · $320KMay 28, 2026Filing
  • Insider sellInsider Sell $140KSt Dennis Thomas · Director · $139.8KMay 26, 2026Filing
  • Insider sellInsider Sell $177KBlumenstock Gerald M · EVP, Research, Dev. & Eng. · $177.3KMay 22, 2026Filing
  • Insider sellInsider Sell $144KEvans Eileen · EVP, General Counsel and Sec'y · $144KMay 22, 2026Filing
  • Insider sellInsider Sell $175KTatnall Christopher · EVP Global Customer Operations · $174.6KMay 21, 2026Filing
  • Insider sellInsider Sell $251KQuirk Jeanne · Director · $250.9KMay 20, 2026Filing
  • Insider sellInsider Sell $486KKURTZWEIL JOHN T · Director · $485.8KMay 20, 2026Filing
  • Insider sellInsider Sell $457KGRAVES GREGORY B · Director · $456.7KMay 20, 2026Filing

Questions

Frequently asked questions

What is Axcelis Technologies, Inc.'s market cap?

Axcelis Technologies, Inc. (ACLS) has a market capitalization of $4.6B.

What is ACLS's P/E ratio?

ACLS trades at a price-to-earnings ratio of 42.6, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

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

ACLS trades at 4.49 times book value per share.

Are insiders buying ACLS stock?

SEC Form 4 filings show no open-market insider buys at Axcelis Technologies, Inc. in the last 90 days (17 sells).

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Timeline

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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.