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MKS Inc. (MKSI)

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

MKS Inc. (MKSI) is a Hardware, Equipment & Parts company based in US with a market capitalization of $21.7B. Revenue grew 9.6% year-over-year and the company generated $497M in free cash flow. This page tracks MKSI's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 10.2K employees · IPO Mar 30, 1999

Valuation

Valuation & price

$303.17 · as of May 17, 2026 · -31.8% vs 52w high

69.6

P/E ratio

Latest-FY diluted EPS

7.98

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$421$255$89.62Jul 25Dec 25Jul 26Jul 7, 25$102.18Jul 9, 25$105.78Jul 11, 25$106.45Jul 15, 25$103.92Jul 17, 25$103.94Jul 21, 25$103.34Jul 23, 25$99.55Jul 25, 25$99.50Jul 29, 25$101.65Jul 31, 25$95.18Aug 4, 25$94.00Aug 6, 25$89.62Aug 11, 25$98.17Aug 13, 25$104.36Aug 15, 25$100.22Aug 19, 25$100.68Aug 21, 25$99.42Aug 25, 25$106.22Aug 27, 25$105.68Aug 29, 25$103.34Sep 3, 25$100.24Sep 5, 25$104.49Sep 9, 25$108.29Sep 11, 25$116.00Sep 16, 25$118.35Sep 18, 25$129.92Sep 22, 25$127.90Sep 24, 25$123.94Sep 26, 25$121.81Sep 30, 25$123.77Oct 2, 25$136.54Oct 6, 25$139.47Oct 8, 25$132.97Oct 10, 25$121.26Oct 14, 25$132.68Oct 16, 25$137.75Oct 21, 25$140.73Oct 23, 25$140.65Oct 27, 25$145.01Oct 29, 25$141.40Oct 31, 25$143.71Nov 4, 25$137.20Nov 6, 25$155.25Nov 10, 25$158.90Nov 12, 25$153.17Nov 14, 25$142.74Nov 18, 25$140.38Nov 20, 25$138.49Nov 25, 25$149.00Nov 28, 25$156.39Dec 2, 25$160.97Dec 4, 25$163.35Dec 8, 25$164.40Dec 10, 25$167.88Dec 12, 25$155.77Dec 16, 25$156.25Dec 18, 25$157.01Dec 22, 25$161.99Dec 24, 25$163.40Dec 29, 25$162.81Jan 2, 26$168.36Jan 6, 26$183.50Jan 8, 26$178.98Jan 12, 26$185.92Jan 14, 26$190.30Jan 16, 26$203.99Jan 21, 26$220.73Jan 23, 26$217.06Jan 27, 26$229.60Jan 29, 26$243.88Feb 2, 26$233.57Feb 4, 26$220.00Feb 9, 26$250.60Feb 11, 26$259.05Feb 13, 26$260.74Feb 18, 26$250.36Feb 20, 26$259.27Feb 24, 26$251.41Feb 26, 26$244.68Mar 2, 26$244.26Mar 4, 26$235.23Mar 6, 26$210.00Mar 10, 26$225.28Mar 12, 26$213.49Mar 17, 26$228.89Mar 19, 26$236.85Mar 23, 26$235.02Mar 25, 26$243.68Mar 27, 26$223.18Mar 31, 26$229.81Apr 2, 26$234.66Apr 7, 26$238.17Apr 9, 26$263.25Apr 13, 26$273.18Apr 15, 26$269.00Apr 17, 26$278.59Apr 22, 26$278.45Apr 24, 26$280.98Apr 28, 26$267.90Apr 30, 26$283.75May 4, 26$291.53May 6, 26$293.77May 8, 26$313.21May 12, 26$311.72May 14, 26$313.81May 18, 26$295.70May 20, 26$311.51May 22, 26$320.62May 28, 26$323.41Jun 1, 26$317.62Jun 3, 26$335.15Jun 5, 26$301.65Jun 9, 26$320.96Jun 11, 26$345.32Jun 15, 26$375.32Jun 17, 26$371.26Jun 22, 26$420.56Jun 24, 26$381.62Jun 26, 26$388.61Jul 2, 26$380.56
$89.6252-week range$444.80
Loading valuation history…

Fundamentals

Key fundamentals

$21.7B

Market cap

9.6%

Revenue growth (YoY)

40.5%

Gross margin

$497M

Free cash flow (USD)

$4B

Net debt

0.0%

Share dilution

1/5

Graham criteria passed

Defensive-investor screen

Technology

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$1.3BFY 2017$1.9BFY 2018$2.1BFY 2019$1.9BFY 2020$2.3BFY 2021$3.0BFY 2022$3.5BFY 2023$3.6BFY 2024$3.6BFY 2025$3.9B
$1.3B$3.9B

Free cash flow by year

2016 → 2025

FY 2016$161.0MFY 2017$323.9MFY 2018$350.8MFY 2019$180.6MFY 2020$428.0MFY 2021$552.8MFY 2022$365.0MFY 2023$232.0MFY 2024$410.0MFY 2025$497.0M
$161M$497M

Gross margin by year

2021 → 2025

FY 202146.8%FY 202243.6%FY 202345.3%FY 202447.6%FY 202540.5%
46.8%40.5%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 7, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventRestricted Stock Unit AgreementMay 12, 2026Filing
  • Quarterly report10-Q FiledMay 7, 2026Filing
  • 8-K eventEarnings ReleaseMay 6, 2026Filing
  • 8-K eventExecutive RetirementApr 6, 2026Filing

Questions

Frequently asked questions

What is MKS Inc.'s market cap?

MKS Inc. (MKSI) has a market capitalization of $21.7B.

What is MKSI's P/E ratio?

MKSI trades at a price-to-earnings ratio of 69.6, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

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

MKSI trades at 7.98 times book value per share.

Are insiders buying MKSI stock?

SEC Form 4 filings show no open-market insider buys at MKS Inc. in the last 90 days (0 sells).

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Timeline

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

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

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.