MKSI on Nasdaq

MKS INC

American industrial instruments for measurement company.

$225.48 down 9.02 (3.85%)Price as of Oct 15, 2026 at 17:33 UTC

Last updated Oct 18, 2026.

Overview

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  • TickerMKSI on Nasdaq
  • IndustryIndustrial Instruments For Measurement, Display, and Control
  • HeadquartersMA
  • Incorporated inMA3
  • Business address2 Tech Drive, Andover, Ma 018103
  • Filer categoryLarge accelerated filer3

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Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

46.7%Gross margin4
13.4%Operating margin4
7.5%Net margin4
9.6%Revenue growth, 20254
10.8%Return on equity4
1.53×Debt to equity4
$497.0MFree cash flow4

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Products and services

Semiconductor brought in 43% of the revenue MKS INC broke down this way in fiscal 2025.

  1. Semiconductor$1.7B443%up 13% from 2024
  2. Specialty Industrial$1.1B429%down 4% from 2024
  3. Electronics and Packaging$1.1B428%up 20% from 2024
Products and services by year
Products and services202320242025
Semiconductor$1.5B$1.5B$1.7B
Specialty Industrial$1.2B$1.2B$1.1B
Electronics and Packaging$916.0M$922.0M$1.1B

Business segments

Vacuum Solutions Division brought in 40% of the revenue MKS INC broke down this way in fiscal 2025.

  1. Vacuum Solutions Division$1.6B440%up 14% from 2024
  2. Materials Solutions Division$1.3B434%up 12% from 2024
  3. Photonics Solutions Division$1.0B426%up 1% from 2024
Business segments by year
Business segments202320242025
Vacuum Solutions Division$1.4B$1.4B$1.6B
Materials Solutions Division$1.2B$1.2B$1.3B
Photonics Solutions Division$976.0M$1.0B$1.0B

Regions

Other Countries brought in 26% of the revenue MKS INC broke down this way in fiscal 2025.

  1. Other Countries$1.0B426%up 11% from 2024
  2. China$931.0M424%up 20% from 2024
  3. United States$760.0M419%down 5% from 2024
  4. South Korea$440.0M411%up 23% from 2024
  5. Singapore$265.0M47%up 16% from 2024
  6. Taiwan$260.0M47%up 11% from 2024
  7. Japan$240.0M46%down 4% from 2024
Regions by year
Regions202320242025
Other Countries$858.0M$936.0M$1.0B
China$745.0M$775.0M$931.0M
United States$893.0M$804.0M$760.0M
South Korea$359.0M$358.0M$440.0M
Singapore$239.0M$229.0M$265.0M
Taiwan$248.0M$234.0M$260.0M
Japan$280.0M$250.0M$240.0M

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Research and development8¢$299.0M
  • Selling, general and admin18¢$724.0M
  • Other costs61¢$2.4B
  • Interest5¢$212.0M
  • Income tax0¢$9.0M
  • Profit8¢$295.0M

Out of $3.9B in revenue.4

Where each dollar of operating cash went, fiscal 2025

  • Capital spending23¢$148.0M
  • Dividends paid9¢$59.0M
  • Share buybacks7¢$45.0M
  • Kept or used elsewhere61¢$393.0M

Out of $645.0M of cash from operations.4

Financial statements

Revenue56784$3.9B in 2025+107% since 2019
0$1.0B$2.0B$3.0B$4.0B2019: $1.9B$1.9B20192020: $2.3B$2.3B2020+23%2021: $3.0B$3.0B2021+27%2022: $3.5B$3.5B2022+20%2023: $3.6B$3.6B2023+2%2024: $3.6B$3.6B2024−1%2025: $3.9B$3.9B2025+10%
Gross profit56784$1.8B in 2025+121% since 2019
0$500.0M$1.0B$1.5B$2.0B2019: $830.4M$830.4M20192020: $1.0B$1.0B2020+26%2021: $1.4B$1.4B2021+32%2022: $1.5B$1.5B2022+12%2023: $1.6B$1.6B2023+6%2024: $1.7B$1.7B2024+4%2025: $1.8B$1.8B2025+8%
Operating income56784$528.0M in 2025+140% since 2019
-$2.0B-$1.0B0$1.0B2019: $219.8M$219.8M20192020: $454.0M$454.0M2020+107%2021: $699.0M$699.0M2021+54%2022: $617.0M$617.0M2022−12%2023: -$1.6B-$1.6B20232024: $498.0M$498.0M20242025: $528.0M$528.0M2025+6%
Net income56784$295.0M in 2025+110% since 2019
-$2.0B-$1.0B0$1.0B2019: $140.4M$140.4M20192020: $350.0M$350.0M2020+149%2021: $551.0M$551.0M2021+57%2022: $333.0M$333.0M2022−40%2023: -$1.8B-$1.8B20232024: $190.0M$190.0M20242025: $295.0M$295.0M2025+55%

Every line of the income statement as filed: the last 3 fiscal years, latest first.4

Period ending2025-12-312024-12-312023-12-31
Net revenues$3.9B$3.6B$3.6B
Cost of revenues$2.1B$1.9B$2.0B
Gross profit$1.8B$1.7B$1.6B
Research and development$299.0M$271.0M$288.0M
Selling, general and administrative$724.0M$674.0M$675.0M
Acquisition and integration costs$0$9.0M$16.0M
Restructuring and other$37.0M$6.0M$20.0M
Fees and expenses related to amendments to the Term Loan Facility$2.0M$5.0M$2.0M
Amortization of intangible assets$247.0M$245.0M$295.0M
Goodwill and intangible asset impairments$0$0$1.9B
Gain on sale of long-lived assets$0$0-$2.0M
Income (loss) from operations$528.0M$498.0M-$1.6B
Interest income-$14.0M-$21.0M-$17.0M
Interest expense$212.0M$284.0M$356.0M
Loss on extinguishment of debt-$10.0M-$57.0M-$8.0M
Other expense (income), net$16.0M-$2.0M$27.0M
Income (loss) before income taxes$304.0M$180.0M-$1.9B
(Benefit) provision for income taxes$9.0M-$10.0M-$87.0M
Net income (loss)$295.0M$190.0M-$1.8B
Changes in value of financial instruments designated as cash flow hedges-$29.0M-$1.0M-$24.0M
Foreign currency translation adjustments$237.0M-$213.0M-$83.0M
Change in net investment hedge-$63.0M$36.0M-$25.0M
Unrecognized pension gain (loss)$10.0M$3.0M-$9.0M
Unrealized gain (loss) on investments$0$23.0M-$23.0M
Total comprehensive income (loss)$450.0M$38.0M-$2.0B
Basic$4.39$2.82-$27.54
Diluted$4.37$2.81-$27.54
Basic67.3M shares67.3M shares66.8M shares
Diluted67.7M shares67.6M shares66.8M shares

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Leadership

Who has led MKS INC, and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Leo Berlinghieri2006–2013
  2. Gerard G. Colella2014–2019

Chair

  1. John R. Bertucci2006

President

  1. Leo Berlinghieri2006–2013
  2. Gerard G. Colella2013–2018

Chief financial officer

  1. Ronald Weigner2006–2008
  2. Seth H. Bagshaw2010–2024
  3. Ramakumar Mayampurath2024–now

Chief operating officer

  1. Gerard G. Colella2010–2013
  2. James Alan Schreiner2020–now
2010201520202025
Board members and other officers (33)

Former names

  • MKS INSTRUMENTS INCNov 14, 1997 to May 15, 20253

Timeline

  1. Feb 3, 2014New chief executive Gerard G. Colella becomes CEO12
  2. Feb 15, 2006New chief executive Leo Berlinghieri becomes CEO13

Filings

462 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 59 major events, 242 insider forms, 36 large holders, 105 other. The latest 20:

  1. Sep 3, 2026SCHEDULE 13G/A EDGAR
  2. Sep 2, 20264 PRIMARY DOCUMENT EDGAR
  3. Sep 1, 2026144 EDGAR
  4. Aug 18, 20264 PRIMARY DOCUMENT EDGAR
  5. Aug 17, 20264 PRIMARY DOCUMENT EDGAR
  6. Aug 14, 2026144 EDGAR
  7. Aug 6, 202610-Q EDGAR
  8. Aug 5, 20268-K EDGAR
  9. Aug 4, 20264 PRIMARY DOCUMENT EDGAR
  10. Aug 3, 2026144 EDGAR
  11. Jul 24, 2026SCHEDULE 13G/A EDGAR
  12. Jul 16, 2026SCHEDULE 13G EDGAR
  13. Jun 16, 20264 PRIMARY DOCUMENT EDGAR
  14. Jun 12, 2026144 EDGAR
  15. Jun 11, 20264 PRIMARY DOCUMENT EDGAR
  16. Jun 10, 2026144 EDGAR
  17. Jun 8, 20264 PRIMARY DOCUMENT EDGAR
  18. Jun 5, 2026144 EDGAR
  19. Jun 4, 20263 PRIMARY DOCUMENT EDGAR
  20. Jun 2, 20264 PRIMARY DOCUMENT EDGAR

The 462 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last three years, summarized. The full record is on SEC EDGAR.

Insider trades and holders

Large holders

Investors who own more than 5% must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively. 36 such filings since October 2021, the latest 10:

  1. Sep 3, 2026SCHEDULE 13G/A
  2. Jul 24, 2026SCHEDULE 13G/A
  3. Jul 16, 2026SCHEDULE 13G
  4. May 6, 2026SCHEDULE 13G/A
  5. Apr 30, 2026SCHEDULE 13G
  6. Apr 29, 2026SCHEDULE 13G
  7. Mar 27, 2026SCHEDULE 13G/A
  8. Feb 17, 2026SCHEDULE 13G/A
  9. Feb 12, 2026SCHEDULE 13G
  10. Oct 31, 2025SCHEDULE 13G/A

From Forms 4 and Schedules 13D and 13G filed with the SEC.

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
BlackRock, Inc.6,930,030$3.1B0.0%+288,300
Invesco Ltd.4,661,664$2.1B0.2%+940,205
Vanguard Portfolio Management LLC3,707,327$1.6B0.1%+21,834
Jpmorgan Chase & Co3,373,844$1.4B0.1%+1,277,502
Vanguard Capital Management LLC3,049,560$1.4B0.0%+35,359
State Street Corp2,134,663$949.4M0.0%+76,931
Point72 Asset Management, L.P.1,996,843$888.2M1.4%+386,512
Capital International Investors1,915,187$851.9M0.2%−53,583
Geode Capital Management, LLC1,539,072$686.6M0.0%−247
Fmr LLC1,499,498$667.0M0.0%−434,345
Wellington Management Group Llp1,416,034$629.9M0.1%−417,103
Capital World Investors1,366,290$607.7M0.1%+89,090
Whale Rock Capital Management LLC1,271,373$565.5M4.5%−35,351
Neuberger Berman Group LLC1,165,068$518.2M0.3%−268,461
Alkeon Capital Management LLC1,072,040$476.8M1.8%New
Norges Bank954,667$424.6M0.0%New
Westfield Capital Management Co LP928,617$413.0M1.3%−118,146
Sachem Head Capital Management LP812,700$361.5M7.5%New
Charles Schwab Investment Management Inc808,198$359.5M0.0%−58,449
Citadel Advisors LLC697,670$310.3M0.2%−249,362
Morgan Stanley681,576$303.2M0.0%+166,513
Bank of New York Mellon Corp658,544$292.9M0.0%−173,606
Millennium Management LLC645,071$286.9M0.2%−249,298
Aqr Capital Management LLC638,333$280.2M0.1%+21,836
Victory Capital Management Inc609,027$270.9M0.2%−269,731

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

6 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

DateMemberTradeAmountVs S&P sinceFiling
Oct 31, 2025Lisa C. McClainRepublican, HouseSale$1,001 - $15,000−45.9%Report
Oct 30, 2025Lisa C. McClainRepublican, HouseBuy$1,001 - $15,000+50.5%Report
Oct 30, 2025Lisa C. McClainRepublican, HouseSale$1,001 - $15,000−50.5%Report
Aug 4, 2025Lisa C. McClainRepublican, HouseBuy$1,001 - $15,000+120.8%Report
Apr 3, 2023Tommy TubervilleRepublican, SenateSale$1,001 - $15,000−74.3%Report
Mar 30, 2022Tommy TubervilleRepublican, SenateBuy$1,001 - $15,000−22.2%Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

Sources

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