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AI brief of an SEC Form 8-K · MKS Instruments (MKSI)

MKS Inc. Q1 revenue rises to $1,078 million; Q2 revenue guided to $1.2 billion

Positive Impact 3 of 5 earnings Written later

MKS Inc. reported first quarter 2026 revenue of $1,078 million, up from $936 million a year earlier, with GAAP net income of $84 million ($1.18 per diluted share) versus $52 million ($0.77) a year earlier. The company guided second quarter revenue to $1,200 million plus or minus $40 million and Non-GAAP net earnings per diluted share to $2.90 plus or minus $0.30, which together point to continued growth in the headline measures.

Key points

  • Q1 2026 revenue was $1,078 million, up from $936 million in Q1 2025 and $1,033 million in Q4 2025.
  • Q1 2026 Non-GAAP net earnings per diluted share were $2.30, compared with $1.71 in Q1 2025.
  • Free cash flow was $29 million in Q1 2026, down from $123 million in Q1 2025.
  • Q2 2026 guidance: revenue of $1,200 million, plus or minus $40 million, and Adjusted EBITDA of $328 million, plus or minus $26 million.

The filing

CompanyMKS Instruments (MKSI)
Form8-K, current report
Filed with the SECMay 6, 2026, 4:31 PM ET
Accession number0001193125-26-209140

Items reported: 2.02 Results of Operations

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:12 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on May 06, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.