MKS Inc. Reports Fourth Quarter and Full-Year 2025 Financial Results

Rhea-AI Summary

MKS (NASDAQ: MKSI) reported Q4 2025 revenue of $1,033 million, GAAP net income of $108 million and GAAP EPS of $1.58. Fourth-quarter Adjusted EBITDA was $249 million and Non‑GAAP EPS was $2.47.

For full-year 2025, revenue was $3,931 million, GAAP net income was $295 million and Non‑GAAP net earnings were $533 million. Cash was $675 million and the company completed refinancing actions including a €1.0 billion senior note issuance and upsized the revolver to $1.0 billion.

Positive

• Q4 revenue of $1,033M
• Q4 Adjusted EBITDA of $249M
• Full‑year revenue of $3,931M

Negative

• Secured term loan principal outstanding of $2.9B
• Convertible senior notes outstanding of $1.4B
• Guidance exposed to U.S. tariffs and retaliatory actions

News Market Reaction – MKSI

-4.78%

12 alerts

-4.78% News Effect

-10.9% Trough in 1 min

-$887M Valuation Impact

$17.66B Market Cap

0.0x Rel. Volume

On the day this news was published, MKSI declined 4.78%, reflecting a moderate negative market reaction. Argus tracked a trough of -10.9% from its starting point during tracking. Our momentum scanner triggered 12 alerts that day, indicating notable trading interest and price volatility. This price movement removed approximately $887M from the company's valuation, bringing the market cap to $17.66B at that time.

Data tracked by StockTitan Argus on the day of publication.

Key Figures

Q4 2025 revenue: $1,033M Q4 GAAP EPS: $1.58 Q4 Non-GAAP EPS: $2.47 +5 more

8 metrics

Q4 2025 revenue $1,033M Quarterly net revenues

Q4 GAAP EPS $1.58 Q4 2025 net income per diluted share

Q4 Non-GAAP EPS $2.47 Q4 2025 non-GAAP net earnings per diluted share

FY 2025 revenue $3,931M Total net revenues for 2025

Cash balance $675M Cash and cash equivalents at Dec 31, 2025

Secured term loans $2.9B Secured term loan principal outstanding at Dec 31, 2025

Convertible notes $1.4B Convertible senior notes outstanding at Dec 31, 2025

Q1 2026 revenue guide $1,040M ±$40M First quarter 2026 revenue guidance

Market Reality Check

Price: $244.46 Vol: Volume 3,347,033 is 1.75x...

high vol

$244.46 Last Close

Volume Volume 3,347,033 is 1.75x the 20-day average of 1,914,538, indicating elevated trading interest ahead of/around the earnings release. high

Technical Shares at $262.94 are trading above the 200-day MA of $132.56, and sit within 1.18% of the $266.08 52-week high.

Peers on Argus

MKSI is up 4.54% while key peers like CGNX (-1.56%), VNT (-2.52%), and ITRI (-2....

MKSI is up 4.54% while key peers like CGNX (-1.56%), VNT (-2.52%), and ITRI (-2.47%) are down or flat, pointing to a stock-specific reaction to its earnings.

Common Catalyst Several peers had company-specific news (ITRI earnings, VNT dividend, CGNX board changes), but their negative/flat moves contrast with MKSI’s positive earnings-driven move.

Previous Earnings Reports

5 past events · Latest: Nov 05 (Positive)

Same Type Pattern 5 events

Date	Event	Sentiment	Move	Catalyst
Nov 05	Q3 2025 earnings	Positive	+2.0%	Q3 2025 revenue $988M and EPS in upper half of guidance.
Aug 06	Q2 2025 earnings	Positive	+10.2%	Q2 2025 revenue $973M exceeded guidance with strong segment growth.
May 07	Q1 2025 earnings	Positive	+4.0%	Q1 2025 revenue $936M at high end of guidance with solid EBITDA.
Feb 12	Q4 2024 earnings	Positive	-6.6%	Q4 2024 revenue $935M and EPS above guidance but shares fell.
Nov 06	Q3 2024 earnings	Positive	+12.0%	Q3 2024 revenue $896M at high end of guidance and EPS beat.

Pattern Detected

Earnings releases have generally triggered positive moves, with 4 of the last 5 earnings events showing gains, but one notable negative reaction despite strong results.

Recent Company History

Over the last five earnings cycles, MKS has reported steadily strong results, with quarterly revenues ranging from $896M in Q3 2024 to $988M in Q3 2025 and GAAP net income rising from $52M to $74M. Non-GAAP EPS has consistently exceeded guidance midpoints. Markets often reacted positively, with moves like +11.96% and +10.21%, though Q4 2024 saw a -6.62% pullback. Today’s Q4/FY 2025 report, with $1,033M revenue and higher EPS, fits this pattern of strong execution and active balance-sheet management.

Historical Comparison

+4.3% avg move · In the past five earnings reports, MKSI’s average move was about 4.31%. Today’s 4.54% reaction to Q4...

earnings

+4.3%

Average Historical Move earnings

In the past five earnings reports, MKSI’s average move was about 4.31%. Today’s 4.54% reaction to Q4/FY 2025 results closely matches this typical earnings-day volatility.

Earnings releases from Q3 2024 through Q3 2025 show revenues rising from $896M to $988M with steadily improving GAAP net income and robust Adjusted EBITDA, reflecting ongoing operational strengthening into the current Q4/FY 2025 report.

Market Pulse Summary

This announcement delivers detailed Q4 and full-year 2025 results, including revenue of $1,033M, GAA...

Analysis

This announcement delivers detailed Q4 and full-year 2025 results, including revenue of $1,033M, GAAP EPS of $1.58, and non-GAAP EPS of $2.47, alongside $3,931M in 2025 revenue. Management highlights strong cash generation, substantial term loan prepayments, and new €1.0B senior notes to refinance debt. Investors may track how upcoming quarters compare with Q1 2026 guidance, ongoing deleveraging, and demand trends in semiconductor and electronics end markets when evaluating these results.

Key Terms

adjusted ebitda, non-gaap, convertible senior notes, revolving credit facility, +3 more

7 terms

adjusted ebitda financial

"Quarterly Adjusted EBITDA of $249 million and Non-GAAP net earnings..."

Adjusted EBITDA is a way companies measure how much money they make from their core operations, like running a business, by removing certain costs or income that aren’t part of regular business activities. It helps investors see how well a company is doing without distractions from unusual expenses or gains, making it easier to compare companies or track performance over time.

non-gaap financial

"Quarterly Adjusted EBITDA of $249 million and Non-GAAP net earnings..."

Non-GAAP refers to financial measures that companies use to show their earnings or performance without including certain expenses or income that are often added back to give a different picture. It matters because it can make a company's results look better or more favorable, but it may also hide important costs, so investors need to look at both GAAP (official rules) and non-GAAP numbers to get a full understanding.

convertible senior notes financial

"...$1.4 billion of convertible senior notes outstanding and up to $675 million..."

Convertible senior notes are a type of loan that a company issues to investors, which can be turned into company shares later on. They are called "senior" because they are paid back before other debts if the company runs into trouble. This allows investors to earn interest like a loan but also have the chance to own part of the company if its value rises.

revolving credit facility financial

"...additional borrowing capacity under a revolving credit facility, subject to..."

A revolving credit facility is a type of loan that a business can borrow from whenever it needs money, up to a set limit. It’s like having a credit card for companies—allowing them to borrow, pay back, and borrow again as needed, providing flexibility for managing cash flow or funding short-term expenses.

senior notes financial

"completed a private offering of €1.0 billion aggregate principal amount of 4.25% senior notes due 2034."

Senior notes are a type of loan that a company borrows from investors, promising to pay it back with interest. They are called "senior" because in case the company faces financial trouble, these lenders are paid back before others. This makes senior notes safer for investors compared to other types of loans or bonds.

term loans financial

"...recent refinancing of our term loans and the issuance of €1.0 billion senior notes..."

Term loans are long-term bank or lender loans with a set repayment schedule and fixed end date, similar to a mortgage or car loan for a business. They matter to investors because they create predictable interest payments and principal obligations that affect a company’s cash flow, credit risk and capacity to fund growth or return money to shareholders; heavier or expensive term loans can raise default risk and reduce future flexibility.

regulation s-k regulatory

"...reliance on the exception in Item 10(e)(1)(i)(B) of Regulation S-K for reconciliations..."

A set of U.S. Securities and Exchange Commission rules that tell public companies which narrative and qualitative details must be disclosed in filings, such as risk factors, management discussion, executive pay, legal proceedings and business description. Think of it as a standardized checklist or blueprint that ensures investors get the same types of background information from every company so they can compare risks, management quality and strategy before making investment decisions.

AI-generated analysis. Not financial advice.

• Quarterly revenue of $1,033 million
• Quarterly GAAP net income of $108 million and net income per diluted share of $1.58
• Quarterly Adjusted EBITDA of $249 million and Non-GAAP net earnings per diluted share of $2.47
  

ANDOVER, Mass., Feb. 17, 2026 (GLOBE NEWSWIRE) -- MKS Inc. (NASDAQ: MKSI), a global provider of enabling technologies that transform our world, today reported its financial results for the fourth quarter and full year of 2025.

“Our outstanding Q4 and full-year 2025 financial performance demonstrates that the investments we have made to enable today’s advanced electronics are bearing fruit,” said John T.C. Lee, President and Chief Executive Officer. “Our broad technology portfolio targeted to next-generation semiconductor manufacturing and advanced packaging drove double-digit growth in our two key end markets in 2025. MKS is in an excellent position to capitalize on current and future opportunities in a secular growth environment driven by AI transformation.”

“The strong cash flow we generated in 2025 allowed us to proactively invest in our business to support growth and manage our balance sheet,” said Ram Mayampurath, Executive Vice President and Chief Financial Officer. “Our debt prepayments, along with the recent refinancing of our term loans and the issuance of €1.0 billion senior notes, have diversified our capital structure, extended our maturities and meaningfully reduced our interest rates, strengthening our financial position.”

Selected GAAP and Non-GAAP Financial Measures
(In millions, except per share data)
	Quarter												Full Year
	Q4 2025				Q3 2025				Q4 2024				2025				2024
Net Revenues
Semiconductor	$	435			$	415			$	400			$	1,696			$	1,498
Electronics & Packaging		303				289				254			$	1,111			$	922
Specialty Industrial		295				284				281			$	1,124			$	1,166
Total net revenues	$	1,033			$	988			$	935			$	3,931			$	3,586
Gross Margin		46.4	%			46.6	%			47.2	%			46.7	%			47.6	%
GAAP Financial Measures
Operating margin		13.9	%			14.0	%			14.5	%			13.4	%			13.9	%
Net income	$	108			$	74			$	90			$	295			$	190
Net income per diluted share	$	1.58			$	1.10			$	1.33			$	4.37			$	2.81
Non-GAAP Financial Measures
Operating margin		21.0	%			20.8	%			21.3	%			20.7	%			21.3	%
Net earnings	$	168			$	130			$	146			$	533			$	444
Net earnings per diluted share	$	2.47			$	1.93			$	2.15			$	7.88			$	6.58

Additional Financial Information

At December 31, 2025, the Company had $675 million in cash and cash equivalents, $2.9 billion of secured term loan principal outstanding, $1.4 billion of convertible senior notes outstanding and up to $675 million of additional borrowing capacity under a revolving credit facility, subject to certain leverage ratio requirements. During the fourth quarter of 2025, the Company paid a cash dividend of $15 million or $0.22 per diluted share and made a voluntary principal prepayment of $100 million on its USD term loan B.

On February 4, 2026, the Company completed a private offering of €1.0 billion aggregate principal amount of 4.25% senior notes due 2034. The Company used the net proceeds from the offering, together with the net proceeds from the partial refinancing of its then-existing USD term loan B and refinancing of its then-existing EUR term loan B, both of which were also completed on February 4, 2026, and cash on hand to prepay approximately $1.3 billion of, and refinance in full, its existing USD term loan B and refinance in full its existing EUR term loan B. In addition, the Company upsized its revolving credit facility from $675 million to $1 billion.

First Quarter 2026 Guidance⁽¹⁾  

• Revenue of $1,040 million, plus or minus $40 million
• Gross margin of 46.0%, plus or minus 1.0%
• Non-GAAP operating expenses of $270 million, plus or minus $5 million
• Non-GAAP net earnings of $136 million, plus or minus $19 million
• Non-GAAP net earnings per diluted share of $2.00, plus or minus $0.28
• Adjusted EBITDA of $251 million, plus or minus $24 million

The guidance for the first quarter is based on the current business environment, including the impact of U.S. import tariffs and the imposition of retaliatory actions taken by other countries up through but not including the date of this release. The Company will continue to monitor and adapt to changes in the business environment as needed.

Conference Call Details

A conference call with management will be held on Wednesday, February 18, 2026 at 8:30 a.m. (Eastern Time). To participate in the call by phone, participants should visit the Investor Relations section of MKS’ website at investor.mks.com and click on Events & Presentations, where you will be able to register online and receive dial-in details. We encourage participants to register and dial in to the conference call at least 15 minutes before the start of the call to ensure a timely connection. A live and archived webcast and related presentation materials will be available on the Investor Relations section of the MKS website.

____________________________________

⁽¹⁾ See “Use of Non-GAAP Financial Results” below for a discussion of our Non-GAAP financial measures and reliance on the exception in Item 10(e)(1)(i)(B) of Regulation S-K for reconciliations of forward-looking Non-GAAP financial measures.

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 includes financial measures that are not in accordance with U.S. generally accepted accounting principles (“Non-GAAP financial measures”). These Non-GAAP financial measures 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, these Non-GAAP financial measures are not based on any comprehensive set of accounting rules or principles. MKS management believes the presentation of these Non-GAAP financial measures 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 Non-GAAP net earnings, Non-GAAP net earnings per diluted share, Non-GAAP operating expenses, and Adjusted EBITDA to their most directly comparable GAAP financial measures because it is 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, fees and expenses related to amendments to the Term Loan Facility and Revolving Credit Facility, amortization of debt issuance costs, interest expense, and the income tax effect of these items. These items are uncertain, depend on various factors, including, but not limited to, our recently completed private offering of €1.0 billion principal amount of 4.25% senior notes and refinancing of our Term Loan Facility and Revolving Credit Facility on February 4, 2026, and could have a material impact on GAAP reported results for the relevant period.

For further information regarding these Non-GAAP financial measures, please refer to the tables presenting reconciliations of our Non-GAAP results to our GAAP results and the “Notes on Our Non-GAAP Financial Information” at the end of this press release.

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 Inc. (“MKS,” the “Company,” “our,” or “we”). 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 level and terms of our substantial indebtedness and our ability to service such debt; our entry into the chemicals technology business through our acquisition of Atotech Limited (“Atotech”) in August 2022 (the “Atotech Acquisition”), which has exposed us to significant additional liabilities; the risk that we are unable to realize the anticipated benefits of the Atotech Acquisition; risks related to cybersecurity, data privacy and intellectual property; competition from larger, more advanced or more established companies in our markets; the ability to successfully grow our business, including through growth of the Atotech business, and financial risks associated with that acquisition and potential future acquisitions, including goodwill and intangible asset impairments; manufacturing and sourcing risks, including those associated with limited and sole source suppliers and the impact and duration of supply chain disruptions, component shortages, and price increases; changes in global demand; risks associated with doing business internationally, including geopolitical conflicts, such as the conflict in the Middle East, trade compliance, trade protection measures, such as import tariffs by the United States or retaliatory actions taken by other countries, regulatory restrictions on our products, components or markets, particularly the semiconductor market, and unfavorable currency exchange and tax rate fluctuations, which risks become more significant as we grow our business internationally and in China specifically; conditions affecting the markets in which we operate, including fluctuations in capital spending in the semiconductor, electronics manufacturing and automotive industries, and fluctuations in sales to our major customers; disruptions or delays from third-party service providers upon which our operations may rely; the ability to anticipate and meet customer demand; the challenges, risks and costs involved with integrating or transitioning global operations of the companies we have acquired; risks associated with the attraction and retention of key personnel; potential fluctuations in quarterly results; dependence on new product development; rapid technological and market change; acquisition strategy; volatility of stock price; risks associated with chemical manufacturing and environmental regulation compliance; risks related to defective products; financial and legal risk management; and the other important factors described under the heading “Risk Factors” in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2024 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. Amounts reported in this press release are preliminary and subject to finalization prior to the filing of our Annual Report on Form 10-K for the year ended December 31, 2025.

Company Contact:
Paretosh Misra
Vice President, Investor Relations
Telephone: (978) 284-4705
Email: paretosh.misra@mks.com

MKS Inc.
Unaudited Consolidated Statements of Operations
(In millions, except per share data)
	Three Months Ended												Twelve Months Ended
	December 31,				September 30,				December 31,				December 31,				December 31,
	2025				2025				2024				2025				2024
Net revenues:
Products	$	907			$	860			$	824			$	3,436			$	3,124
Services		126				128				111				495				462
Total net revenues		1,033				988				935				3,931				3,586
Cost of revenues:
Products		491				466				443				1,859				1,662
Services		62				61				51				235				216
Total cost of revenues (exclusive of amortization shown separately below)		553				527				494				2,094				1,878
Gross profit		480				461				441				1,837				1,708
Research and development		78				76				65				299				271
Selling, general and administrative		185				180				176				724				674
Acquisition and integration costs		—				—				3				—				9
Restructuring and other		11				4				1				37				6
Fees and expenses related to amendments to the Term Loan Facility		—				—				—				2				5
Amortization of intangible assets		62				63				61				247				245
Income from operations		144				138				135				528				498
Interest income		(3	)			(3	)			(5	)			(14	)			(21	)
Interest expense		50				53				54				212				284
Loss on extinguishment of debt		2				2				4				10				57
Other expense (income), net		6				2				3				16				(2	)
Income before income taxes		89				84				79				304				180
(Benefit) provision for income taxes		(19	)			10				(11	)			9				(10	)
Net income	$	108			$	74			$	90			$	295			$	190
Net income per share:
Basic	$	1.60			$	1.10			$	1.34			$	4.39			$	2.82
Diluted	$	1.58			$	1.10			$	1.33			$	4.37			$	2.81
Cash dividends per common share	$	0.22			$	0.22			$	0.22			$	0.88			$	0.88
Weighted average shares outstanding:
Basic		67.3				67.3				67.4				67.3				67.3
Diluted		68.0				67.6				67.7				67.7				67.6

MKS Inc.
Unaudited Consolidated Balance Sheet
(In millions)
	December 31,				December 31,
	2025				2024
ASSETS
Cash and cash equivalents	$	675			$	714
Trade accounts receivable, net		651				615
Inventories		921				893
Other current assets		263				252
Total current assets		2,510				2,474
Property, plant and equipment, net		810				771
Right-of-use assets		270				238
Goodwill		2,574				2,479
Intangible assets, net		2,140				2,272
Other assets		492				356
Total assets	$	8,796			$	8,590
LIABILITIES AND STOCKHOLDERS' EQUITY
Short-term debt	$	51			$	50
Accounts payable		407				341
Other current liabilities		469				384
Total current liabilities		927				775
Long-term debt, net		4,150				4,488
Non-current deferred taxes		474				504
Non-current accrued compensation		149				141
Non-current lease liabilities		246				211
Other non-current liabilities		131				149
Total liabilities		6,077				6,268
Stockholders' equity:
Common stock		—				—
Additional paid-in capital		2,101				2,067
Retained earnings		711				503
Accumulated other comprehensive loss		(93	)			(248	)
Total stockholders' equity		2,719				2,322
Total liabilities and stockholders' equity	$	8,796			$	8,590

MKS Inc.
Unaudited Consolidated Statements of Cash Flows
(In millions)
	Three Months Ended												Twelve Months Ended
	December 31,				September 30,				December 31,				December 31,				December 31,
	2025				2025				2024				2025				2024
Cash flows from operating activities:
Net income	$	108			$	74			$	90			$	295			$	190
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		86				85				87				344				348
Unrealized (gain) loss on foreign currency and derivative instruments		(6	)			(8	)			11				(9	)			13
Amortization of debt issuance costs and original issue discount		6				7				7				26				30
Loss on extinguishment of debt		2				2				4				10				57
Stock-based compensation		8				12				11				55				48
Provision for excess and obsolete inventory		8				10				15				45				56
Deferred income taxes		(71	)			(44	)			(58	)			(196	)			(226	)
Other		2				1				2				—				8
Changes in operating assets and liabilities		(1	)			58				7				75				4
Net cash provided by operating activities		142				197				176				645				528
Cash flows from investing activities:
Net purchases (sales) of investments		1				(1	)			—				—				—
Proceeds from sale of long-lived assets		1				—				—				3				1
Purchases of property, plant and equipment		(51	)			(50	)			(51	)			(148	)			(118	)
Net cash used in investing activities		(49	)			(51	)			(51	)			(145	)			(117	)
Cash flows from financing activities:
Repurchase of common stock		—				—				—				(45	)			—
Proceeds from borrowings		—				—				—				—				2,161
Payments of borrowings		(113	)			(113	)			(229	)			(451	)			(2,427	)
Purchase of capped calls related to Convertible Notes		—				—				—				—				(167	)
Payments of deferred financing fees		—				—				—				—				(33	)
Dividend payments		(15	)			(15	)			(15	)			(59	)			(59	)
Net proceeds (payments) related to employee stock awards		3				—				3				(4	)			(9	)
Other financing activities		—				(1	)			(5	)			(3	)			(15	)
Net cash used in financing activities		(125	)			(129	)			(246	)			(562	)			(549	)
Effect of exchange rate changes on cash and cash equivalents		10				6				(26	)			23				(23	)
(Decrease) increase in cash and cash equivalents		(22	)			23				(147	)			(39	)			(161	)
Cash and cash equivalents at beginning of period		697				674				861				714				875
Cash and cash equivalents at end of period	$	675			$	697			$	714			$	675			$	714

The following supplemental Non-GAAP earnings information is presented to aid in understanding MKS’ operating results:
MKS Inc.
Schedule Reconciling Selected Non-GAAP Financial Measures
(In millions, except per share data)
	Three Months Ended												Twelve Months Ended
	December 31,				September 30,				December 31,				December 31,				December 31,
	2025				2025				2024				2025				2024
Net income	$	108			$	74			$	90			$	295			$	190
Acquisition and integration costs		—				—				3				—				9
Restructuring and other		11				4				1				37				6
Amortization of intangible assets		62				63				61				247				245
Loss on extinguishment of debt		2				2				4				10				57
Amortization of debt issuance costs		5				5				5				19				21
Fees and expenses related to amendments to the Term Loan Facility		—				—				—				2				5
Tax effect of Non-GAAP adjustments		(20	)			(18	)			(18	)			(77	)			(89	)
Non-GAAP net earnings	$	168			$	130			$	146			$	533			$	444
Non-GAAP net earnings per diluted share	$	2.47			$	1.93			$	2.15			$	7.88			$	6.58
Weighted average diluted shares outstanding		68.0				67.6				67.7				67.7				67.6
Net cash provided by operating activities	$	142			$	197			$	176			$	645			$	528
Purchases of property, plant and equipment		(51	)			(50	)			(51	)			(148	)			(118	)
Free cash flow	$	91			$	147			$	125			$	497			$	410
Operating expenses	$	336			$	323			$	306			$	1,309			$	1,210
Acquisition and integration costs		—				—				3				—				9
Restructuring and other		11				4				1				37				6
Amortization of intangible assets		62				63				61				247				245
Fees and expenses related to amendments to the Term Loan Facility		—				—				—				2				5
Non-GAAP operating expenses	$	263			$	256			$	242			$	1,023			$	945
Income from operations	$	144			$	138			$	135			$	528			$	498
Operating margin		13.9	%			14.0	%			14.5	%			13.4	%			13.9	%
Acquisition and integration costs		—				—				3				—				9
Restructuring and other		11				4				1				37				6
Amortization of intangible assets		62				63				61				247				245
Fees and expenses related to amendments to the Term Loan Facility		—				—				—				2				5
Non-GAAP income from operations	$	217			$	205			$	199			$	814			$	763
Non-GAAP operating margin		21.0	%			20.8	%			21.3	%			20.7	%			21.3	%
Interest expense, net	$	47			$	50			$	49			$	198			$	263
Amortization of debt issuance costs		5				5				5				19				21
Non-GAAP interest expense, net	$	42			$	45			$	45			$	179			$	242
Net income	$	108			$	74			$	90			$	295			$	190
Interest expense, net		47				50				49				198				263
Other expense (income), net		6				2				3				16				(2	)
(Benefit) provision for income taxes		(19	)			10				(11	)			9				(10	)
Depreciation		24				23				26				97				103
Amortization of intangible assets		62				63				61				247				245
Stock-based compensation		8				12				11				55				48
Acquisition and integration costs		—				—				3				—				9
Restructuring and other		11				4				1				37				6
Loss on extinguishment of debt		2				2				4				10				57
Fees and expenses related to amendments to the Term Loan Facility		—				—				—				2				5
Adjusted EBITDA	$	249			$	240			$	237			$	966			$	914
Adjusted EBITDA margin		24.1	%			24.3	%			25.3	%			24.6	%			25.5	%

MKS Inc.
Schedule Reconciling Selected Non-GAAP Financial Measures
(In millions, except per share data)
	Three Months Ended December 31, 2025										Three Months Ended December 31, 2024
	Income Before			(Benefit) Provision				Effective			Income Before			(Benefit) Provision				Effective
	Income Taxes			for Income Taxes				Tax Rate			Income Taxes			for Income Taxes				Tax Rate
GAAP	$	89		$	(19	)		(20.8	%)		$	79		$	(11	)		(14.5	%)
Acquisition and integration costs		—			—							3			—
Restructuring and other		11			—							1			—
Amortization of intangible assets		62			—							61			—
Loss on extinguishment of debt		2			—							4			—
Amortization of debt issuance costs		5			—							5			—
Fees and expenses related to amendments to the Term Loan Facility		—			—							—			—
Tax effect of Non-GAAP adjustments		—			20							—			18
Non-GAAP	$	169		$	1			0.9	%		$	153		$	7			4.0	%
	Three Months Ended September 30, 2025
	Income Before			Provision				Effective
	Income Taxes			for Income Taxes				Tax Rate
GAAP	$	84		$	10			12.3	%
Restructuring and other		4			—
Amortization of intangible assets		63			—
Loss on extinguishment of debt		2			—
Amortization of debt issuance costs		5			—
Tax effect of Non-GAAP adjustments		—			18
Non-GAAP	$	158		$	28			17.9	%
	Twelve Months Ended December 31, 2025										Twelve Months Ended December 31, 2024
	Income Before			Provision				Effective			Income Before			(Benefit) Provision				Effective
	Income Taxes			for Income Taxes				Tax Rate			Income Taxes			for Income Taxes				Tax Rate
GAAP	$	304		$	9			2.9	%		$	180		$	(10	)		(5.7	%)
Acquisition and integration costs		—			—							9			—
Restructuring and other		37			—							6			—
Amortization of intangible assets		247			—							245			—
Loss on extinguishment of debt		10			—							57			—
Amortization of debt issuance costs		19			—							21			—
Fees and expenses related to amendments to the Term Loan Facility		2			—							5			—
Tax effect of Non-GAAP adjustments		—			77							—			89
Non-GAAP	$	619		$	86			13.8	%		$	523		$	78			14.8	%

MKS Inc.
Notes on Our Non-GAAP Financial Information

Non-GAAP financial measures adjust GAAP financial measures for the items listed below. These Non-GAAP financial measures should be viewed in addition to, and not as a substitute for, MKS’ reported GAAP results, and may be different from Non-GAAP financial measures used by other companies. In addition, these Non-GAAP financial measures are not based on any comprehensive set of accounting rules or principles. MKS management believes the presentation of these Non-GAAP financial measures is useful to investors for comparing prior periods and analyzing ongoing business trends and operating results. Totals presented may not sum and percentages may not recalculate using figures presented due to rounding.

Acquisition and integration costs include incremental expenses incurred to effect the Atotech Acquisition. Such acquisition costs may include advisory, legal, tax, accounting, valuation, and other professional or consulting fees. Such integration costs may include expenses directly related to integration of business and facility operations, information technology systems and infrastructure and other employee-related costs.

Restructuring and other include incremental expenses incurred in connection with restructuring programs and other strategic initiatives, primarily related to changes in business and/or cost structure. Such costs may include third-party services, one-time termination benefits, facility-related costs, contract termination fees and other items that have no direct correlation to our future business operations.

Amortization of intangible assets includes non-cash amortization expense associated with intangible assets acquired in acquisitions.

Loss on extinguishment of debt includes the non-cash write-off of unamortized debt issuance costs and original issue discount costs incurred from voluntary prepayments and/or repricing of our term loan facility.

Amortization of debt issuance costs includes non-cash additional interest expense related to the amortization of debt issuance costs associated with our term loan facility.

Fees and expenses related to amendments to the Term Loan Facility includes direct third-party costs related to repricings or refinancings of our term loan facility.

Tax effect of Non-GAAP adjustments includes the impact of Non-GAAP adjustments that are tax effected at applicable statutory rates resulting in a difference between the GAAP and Non-GAAP tax rates. 

FAQ

What were MKS (MKSI) Q4 2025 earnings and EPS results?

MKS reported Q4 2025 GAAP net income of $108 million and GAAP EPS of $1.58. According to the company, Q4 Adjusted EBITDA was $249 million and Non‑GAAP EPS was $2.47, reflecting stronger margins.

How did MKS perform for full‑year 2025 and what were key metrics?

For full‑year 2025 MKS reported revenue of $3,931 million and GAAP net income of $295 million. According to the company, full‑year Non‑GAAP net earnings were $533 million, showing year‑over‑year profitability improvement.

What capital structure changes did MKS announce on February 4, 2026?

MKS completed a private offering of €1.0 billion 4.25% senior notes due 2034 and refinanced term loans. According to the company, proceeds and cash prepay/ refinanced about $1.3 billion of existing term loan debt.

What is MKS guidance for Q1 2026 revenue and margins?

MKS provided Q1 2026 revenue guidance of $1,040 million ± $40 million and gross margin of 46.0% ± 1.0%. According to the company, guidance also includes Non‑GAAP net earnings per diluted share of $2.00 ± $0.28.

How much cash and borrowing capacity did MKS report at December 31, 2025?

At December 31, 2025 MKS had $675 million in cash and up to $675 million (now upsized to $1.0 billion) revolver capacity. According to the company, the revolver was upsized to $1.0 billion in the refinancing.