---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-057509"
form_type: "8-K"
ticker: "MKSI"
cik: "0001049502"
company_name: "MKS INC"
filed_at: "2023-11-01T23:59:59+00:00"
generated_at: "2026-06-09T01:56:11.101689+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# MKS Instruments Q3 Non-GAAP EPS $1.46 beats guidance; Q4 revenue outlook $840M

## Summary
- Revenue $932M in-line; GAAP EPS $0.58, Non-GAAP EPS $1.46 above guidance high-end.
- GAAP gross margin 45.7%, non-GAAP 47.1% above high-end; operating margins also above.
- Repriced USD Term Loan B and made $100M voluntary prepayment on Term Loan A in October.
- Q4 guidance: revenue $840M +/- $40M, Adjusted EBITDA $185M, Non-GAAP EPS $0.85 +/- $0.27.
- Operating cash flow $160M, free cash flow $142M.

## SEC filing metadata
- accession: 0000950170-23-057509
- form_type: 8-K
- ticker: MKSI
- cik: 0001049502
- company_name: MKS INC
- filed_at: 2023-11-01T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1049502/000095017023057509/0000950170-23-057509-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1049502/000095017023057509/mksi-20231101.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-057509
- JSON: https://secwatch.observer/filing/0000950170-23-057509.json
- Plain text: https://secwatch.observer/filing/0000950170-23-057509.txt

## Key facts
- Earnings Releases
  MKS INC updated its the quarter ended September 30, 2023 guidance (reaffirmed).
  - Period: the quarter ended September 30, 2023
  - Guidance: reaffirmed
  - Result: reported results
  source text: On November 1, 2023, MKS Instruments, Inc. announced its financial results for the quarter ended September 30, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1049502/000095017023057509/0000950170-23-057509-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.