Every material Form 8-K MKS Instruments filed with the SEC in 2025, read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). Newest first; each brief links to its own page and to the filing on SEC.gov.
MKS Inc. reported third-quarter 2025 revenue of $988 million, up from $896 million a year earlier, with GAAP net income of $74 million, or $1.10 per diluted share, compared with $62 million, or $0.92, in the third quarter of 2024. The company guided fourth-quarter 2025 revenue to $990 million, plus or minus $40 million, and said it made a $100 million voluntary debt prepayment in October.
Q3 2025 total net revenues of $988 million, versus $896 million in Q3 2024 and $973 million in Q2 2025
GAAP net income of $74 million and $1.10 per diluted share; non-GAAP net earnings per diluted share of $1.93
Fourth-quarter 2025 guidance: revenue of $990 million plus or minus $40 million; non-GAAP EPS of $2.27 plus or minus $0.34
Net leverage ratio of 3.9x at September 30, 2025; additional $100 million voluntary prepayment in October 2025
MKS Inc. reported second-quarter 2025 revenue of $973 million, up from $887 million a year earlier, and GAAP net income of $62 million, or $0.92 per diluted share, compared with $23 million, or $0.33, in the second quarter of 2024. The company also guided third-quarter 2025 revenue to $960 million, plus or minus $40 million, and said it made $200 million in term loan prepayments across June and August 2025.
Q2 2025 revenue of $973 million, above the high end of company guidance and up from $887 million in Q2 2024.
GAAP net income of $62 million, or $0.92 per diluted share, versus $23 million, or $0.33 per diluted share, in Q2 2024.
Q3 2025 guidance: revenue of $960 million plus or minus $40 million; Non-GAAP net earnings per diluted share of $1.80 plus or minus $0.29.
Voluntary term loan prepayments of $100 million in June 2025 and another $100 million in August 2025.
Shareholders approved changing the company's name to MKS Inc. at the May 12, 2025 annual meeting, effective May 16, 2025, and the stock will keep the MKSI symbol on Nasdaq. The filing also reports a shareholder-approved move from supermajority to simple majority voting for certain charter matters and by-law amendments, and the appointment of James A. Schreiner as Executive Vice President and Chief Operating Officer effective August 1, 2025.
Shareholders approved the name change to MKS Inc. on May 12, 2025; it takes effect May 16, 2025, and the ticker remains MKSI.
Shareholders approved lowering the voting requirement for certain charter matters and by-law amendments from supermajority to simple majority.
James A. Schreiner, 63, will become Executive Vice President and Chief Operating Officer on August 1, 2025, with base salary rising from $510,000 to $600,000.
The company states the name change has no effect on its corporate structure or the names of its subsidiaries.
MKS Instruments reported first quarter 2025 revenue of $936 million, at the high end of its guidance and up from $868 million a year earlier, with GAAP net income of $52 million ($0.77 per diluted share) versus $15 million ($0.22) in the first quarter of 2024. For the second quarter, the company guided to revenue of $925 million, plus or minus $40 million, and Non-GAAP net earnings per diluted share of $1.56, plus or minus $0.28, both below first-quarter actual results.
Q1 2025 total net revenues of $936 million, versus $935 million in Q4 2024 and $868 million in Q1 2024
Q1 2025 GAAP net income of $52 million and diluted EPS of $0.77; Non-GAAP net earnings of $116 million and $1.71 per diluted share
Q2 2025 guidance: revenue of $925 million plus or minus $40 million; GAAP net income per diluted share of $0.81 plus or minus $0.32
Free cash flow of $123 million in Q1 2025; company repurchased about 546,000 shares for about $45 million and paid a $15 million dividend
MKS Instruments reported fourth-quarter 2024 revenue of $935 million, up from $893 million a year earlier, and GAAP net income of $90 million, or $1.33 per diluted share, compared with a net loss of $68 million in the prior-year quarter. The company guided first-quarter 2025 revenue to $910 million, plus or minus $40 million, and non-GAAP diluted EPS to $1.40, plus or minus $0.27, which is below the fourth-quarter revenue level.
Q4 2024 revenue of $935 million vs. $893 million in Q4 2023; non-GAAP diluted EPS of $2.15 vs. $1.17
Q4 2024 GAAP net income of $90 million, or $1.33 per diluted share, vs. a net loss of $68 million in Q4 2023
Q1 2025 guidance: revenue of $910 million (plus or minus $40 million) and GAAP diluted EPS of $0.63 (plus or minus $0.28)
Company made a voluntary $100 million principal prepayment on its USD term loan B in January 2025
MKS Instruments refinanced its USD and euro tranche B term loans under a Fifth Amendment to its credit agreement, lowering the interest margins on both. The company also made a $100 million voluntary prepayment on the USD loans, and it estimates annualized cash interest savings of about $15 million at current rates.
USD tranche B margin fell from 2.25% to 2.00% over SOFR; euro tranche B margin fell from 2.75% to 2.50%.
A $100 million voluntary prepayment cut USD tranche B principal from $2.6 billion to $2.5 billion.
Annualized cash interest savings from the combined actions are estimated at about $15 million, based on current interest rates.
The new term loans mature in 2029, and the 1.00% prepayment premium period on repricing transactions runs six months past January 24, 2025.
Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.
Only material 8-Ks get a brief: results, deals, executive changes, restructuring, impairments, delisting notices, restatements, cybersecurity incidents and other disclosed events. Routine filings (vote results, exhibits only) are skipped. Every MKS Instruments filing is on SEC EDGAR ↗. 8-K briefs of other companies →