Form 8-K
8-K — MKS INC
Accession: 0001193125-26-424709
Filed: 2026-10-19
Period: 2026-10-19
CIK: 0001049502
SIC: 3823 (INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL)
Item: Other Events
Item: Financial Statements and Exhibits
Documents
8-K — mksi-20261019.htm (Primary)
EX-99.1 (mksi-ex99_1.htm)
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8-K
8-K (Primary)
Filename: mksi-20261019.htm · Sequence: 1
8-K
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): October 19, 2026
MKS INC.
(Exact name of Registrant as Specified in Its Charter)
Massachusetts
000-23621
04-2277512
(State or Other Jurisdiction
of Incorporation)
(Commission File Number)
(IRS Employer
Identification No.)
2 Tech Drive
Andover, Massachusetts
01810
(Address of Principal Executive Offices)
(Zip Code)
Registrant’s Telephone Number, Including Area Code: 978 645-5500
(Former Name or Former Address, if Changed Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading
Symbol(s)
Name of each exchange on which registered
Common Stock, no par value
MKSI
Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 8.01 Other Events.
On October 19, 2026, MKS Inc. (the "Company" or "MKS") issued a press release announcing that it has entered into a definitive agreement pursuant to which the Company will sell its Ophir® Optics business to TTM Technologies, Inc. ("TTM") in an all-cash transaction for $650 million, subject to customary closing adjustments (the "Transaction"). The Transaction is subject to customary closing conditions, including certain regulatory approvals and certain governmental consents and permits, and is expected to close in the second quarter of 2027.
The press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits
99.1 Press Release dated October 19, 2026
104 Cover Page Interactive Data File (embedded within the Inline XBRL document)
Safe Harbor For Forward-Looking Statements
This Current Report on Form 8-K contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, but not limited to, the expected time of closing of the Transaction. These statements are only predictions based on current assumptions and expectations. Any statements that are not statements of historical fact (including statements containing the words “will,” “projects,” “intends,” “believes,” “plans,” “anticipates,” “expects,” “estimates,” “forecasts,” “continues” and similar expressions) should be considered to be forward-looking statements. Actual events or results may differ materially from those in the forward-looking statements set forth herein. Among the important factors that could cause actual events to differ materially from those in the forward-looking statements that we make are the failure or inability of TTM or MKS to meet the closing conditions or to otherwise consummate the Transaction, the ability to realize the expected benefits of the Transaction, and the other important factors described under the heading "Risk Factors" in Part I, Item 1A of MKS' Annual Report on Form 10-K for the year ended December 31, 2025 and any subsequent Quarterly Reports on Form 10-Q, each as filed with the U.S. Securities and Exchange Commission. MKS is under no obligation to, and expressly disclaims any obligation to, update or alter these forward-looking statements, whether as a result of new information, future events or otherwise, even if subsequent events cause the Company's views to change, after the date of this Current Report on Form 8-K.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
MKS INC.
Date:
October 19, 2026
By:
/s/ Ramakumar Mayampurath
Name: Ramakumar Mayampurath
Title: Executive Vice President and Chief Financial Officer
EX-99.1
EX-99.1
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EX-99.1
Exhibit 99.1
MKS Inc. to Sell Its Ophir® Optics Business to TTM Technologies, Inc.
ANDOVER, Mass., October 19, 2026 (GLOBE NEWSWIRE) — MKS Inc. (NASDAQ: MKSI), a global provider of enabling technologies that transform our world, today announced that it has entered into a definitive agreement to sell its Ophir® Optics business to TTM Technologies, Inc. (“TTM”) in an all-cash transaction for $650 million, subject to customary closing adjustments. The purchase price represents an estimated multiple of over 18x projected FY 2026 Adjusted EBITDA for the Ophir Optics business.
The Ophir Optics business provides high-precision infrared thermal imaging and laser optics solutions to customers in MKS’ Specialty Industrial market, serving defense, security and industrial applications.
TTM is a leading global manufacturer of technology products, including mission systems, radio frequency ("RF") components, RF microwave/microelectronic assemblies, and technologically advanced interconnect products, including printed circuit boards and substrates.
“The Ophir Optics business highlights how we can apply our broad technology capabilities to serve attractive opportunities outside our core Semiconductor and Electronics & Packaging markets. This transaction represents an opportunity for MKS to capitalize on the value we’ve created with the Ophir Optics business and further strengthen our balance sheet,” said John T.C. Lee, President and Chief Executive Officer, MKS Inc. “We believe TTM is well positioned to support this business in its next phase of growth.”
This transaction does not include the MKS Ophir Instruments laser characterization business, which operates separately from Ophir Optics, or the sale of the Ophir brand. Ophir Instruments provides laser power measurement and beam profiler solutions core to our photonics solutions portfolio, and there will be no impact on the products, services, and support MKS provides to its Ophir Instruments customers.
The transaction is expected to close in the second quarter of 2027, and is subject to customary closing conditions, including certain regulatory approvals and certain governmental consents and permits.
J.P. Morgan Securities LLC is serving as exclusive financial advisor and Herzog Fox & Neeman is serving as lead legal advisor to MKS in connection with this transaction.
About MKS Inc.
MKS Inc. (NASDAQ: MKSI) enables technologies that transform our world. We deliver foundational technology solutions to leading edge semiconductor manufacturing, electronics and packaging, and specialty industrial applications. We apply our broad science and engineering capabilities to create instruments, subsystems, systems, process control solutions and specialty chemicals technology that improve process performance, optimize productivity and enable unique innovations for many of the world’s leading technology and industrial companies. Our
solutions are critical to addressing the challenges of miniaturization and complexity in
advanced device manufacturing by enabling increased power, speed, feature enhancement,
and optimized connectivity. Our solutions are also critical to addressing ever-increasing performance requirements across a wide array of specialty industrial applications. Additional information can be found at www.mks.com.
Use of Non-GAAP Financial Results
This press release references forward-looking Adjusted EBITDA of the Ophir Optics business, a financial measure that is not in accordance with U.S. generally accepted accounting principles (a “Non-GAAP financial measure”). This Non-GAAP financial measure should be viewed in addition to, and not as a substitute for, MKS’ reported results under U.S. generally accepted accounting principles (“GAAP”), and may be different from Non-GAAP financial measures used by other companies. In addition, this Non-GAAP financial measure is not based on any comprehensive set of accounting rules or principles. MKS management believes the presentation of this Non-GAAP financial measure is useful to investors for comparing prior periods and analyzing ongoing business trends and operating results.
MKS is not providing a quantitative reconciliation of forward-looking Adjusted EBITDA to GAAP net income of the Ophir Optics business because we are unable to estimate with reasonable certainty the ultimate timing or amount of certain significant items without unreasonable efforts. These items include, but are not limited to, amortization of intangible assets, restructuring and other expense, goodwill and intangible asset impairments, excess and obsolescence inventory charges, and the income tax effect of these items. These items are uncertain, depend on various factors, and could have a material impact on GAAP reported results for the relevant period.
Safe Harbor for Forward-Looking Statements
This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 regarding the future financial performance, business
prospects and growth of MKS, and the expected time of closing of the transaction. These statements are only predictions based on current assumptions and expectations. Any statements that are not statements of historical fact (including statements containing the words “will,” “projects,” “intends,” “believes,” “plans,” “anticipates,” “expects,” “estimates,” “forecasts,” “continues” and similar expressions) should be considered to be forward-looking statements. Actual events or results may differ materially from those in the forward-looking statements set forth herein. Among the important factors that could cause actual events to differ materially from those in the forward-looking statements that we make are the failure or inability of TTM or MKS to meet the closing conditions or to otherwise consummate the transaction, the ability to realize the expected benefits of the transaction, and the other important factors described under the heading "Risk Factors" in Part I, Item 1A of MKS' Annual Report on Form 10-K for the year ended December 31, 2025 and any subsequent Quarterly Reports on Form 10-Q, each as filed with the U.S. Securities and Exchange Commission. MKS is under no obligation to, and expressly disclaims any obligation to, update or alter these forward-looking statements, whether as a result of new information, future events or otherwise, even if subsequent events cause our views to change, after the date of this press release.
###
Investor Relations Contact:
Paretosh Misra
Vice President, Investor Relations
MKS Inc.
Telephone: (978) 284-4705
Email: paretosh.misra@mksinst.com
Press Relations Contacts:
Bill Casey
Vice President, Marketing
MKS Inc.
Telephone: (630) 995-6384
Email: press@mksinst.com
Kerry Kelly, Partner
Kekst CNC
Email: kerry.kelly@kekstcnc.com
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