MKSI · Nasdaq · CIK 0001049502

MKS INC

MKS INC’s most recent SEC filing in our snapshot is a Form 8-K filed on Oct 19, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $3.9B and net income of $295.0M, according to its XBRL data on EDGAR. Its EDGAR record lists 59 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, FY2025
$3.9B
Net income, FY2025
$295.0M
Form 4 filings on record, past 12 months
59

Company overview

Legal name (as filed)
MKS INC
Ticker
MKSI
SEC Central Index Key (CIK)
0001049502
Business address
ANDOVER, MA
State or country of incorporation
MA
Fiscal year ends
December 31
SEC filer category
Large accelerated filer
Position in SEC ticker list
#773 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from MKS 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
$3.0BFY2021$3.5BFY2022$3.6BFY2023$3.6BFY2024$3.9BFY2025
Net income
$551.0MFY2021$333.0MFY2022-$1.8BFY2023$190.0MFY2024$295.0MFY2025
MKSI annual results
ItemFY2021
ended Dec 31, 2021		FY2022
ended Dec 31, 2022		FY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$3.0B$3.5B$3.6B$3.6B$3.9B
Net income$551.0M$333.0M-$1.8B$190.0M$295.0M
Diluted EPS$9.90$5.56-$27.54$2.81$4.37
Total assets$4.5B$11.5B$9.1B$8.6B$8.8B
Cash and equivalents$966.0M$909.0M$507.0M$420.0M$418.0M

XBRL tags used: revenue = RevenueFromContractWithCustomerExcludingAssessedTax; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareDiluted; cash = CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents. 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.

MKSI latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Feb 24, 202610-KAnnual report· period Dec 31, 2025Document · Index
Aug 6, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Oct 19, 20268-KOther events· period Oct 19, 2026Document · Index
Mar 31, 2026DEF 14ADefinitive proxy statement· period May 11, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about MKS INC, by form type:

4 ×17144 ×158-K ×2SCHEDULE 13G/A ×23 ×110-Q ×1SCHEDULE 13G ×1SD ×1
MKSI recent filings
FiledFormWhat it isOriginal
Oct 19, 20268-KOther events· period Oct 19, 2026Document · Index
Sep 3, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Sep 2, 20264Statement of changes in beneficial ownership (insider trade)· period Sep 1, 2026Document · Index
Sep 1, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 18, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 17, 2026Document · Index
Aug 17, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 14, 2026Document · Index
Aug 14, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 6, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Aug 5, 20268-KResults of operations· period Aug 5, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 3, 2026Document · Index
Aug 3, 2026144Notice of proposed sale of securitiesDocument · Index
Jul 24, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Jul 16, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Jun 16, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 12, 2026Document · Index
Jun 12, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 11, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 10, 2026Document · Index
Jun 10, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 8, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 5, 2026Document · Index
Jun 5, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 4, 20263Initial statement of beneficial ownership· period Jun 1, 2026Document · Index
Jun 2, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 1, 2026Document · Index
Jun 2, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 1, 2026Document · Index
Jun 1, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 1, 2026144Notice of proposed sale of securitiesDocument · Index
May 28, 2026SDSpecialized disclosure report (conflict minerals)Document · Index
May 28, 20264Statement of changes in beneficial ownership (insider trade)· period May 27, 2026Document · Index
May 28, 20264Statement of changes in beneficial ownership (insider trade)· period May 27, 2026Document · Index
May 27, 2026144Notice of proposed sale of securitiesDocument · Index
May 27, 2026144Notice of proposed sale of securitiesDocument · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 26, 2026Document · Index
May 26, 2026144Notice of proposed sale of securitiesDocument · Index
May 26, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · 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, 2026144Notice of proposed sale of securitiesDocument · Index
May 19, 20264Statement of changes in beneficial ownership (insider trade)· period May 18, 2026Document · Index
May 18, 2026144Notice of proposed sale of securitiesDocument · Index
May 15, 20264Statement of changes in beneficial ownership (insider trade)· period May 14, 2026Document · Index
May 14, 2026144Notice of proposed sale of securitiesDocument · Index
May 14, 20264Statement of changes in beneficial ownership (insider trade)· period May 13, 2026Document · Index

Insider filing activity

59 Form 4 filings appear in MKS 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 Industrial Instruments For Measurement, Display, and Control

All 10 companies in Industrial Instruments For Measurement, Display, and Control· Companies headquartered in Massachusetts

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 0001049502 and XBRL company facts. MKS 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.