---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-018919"
form_type: "8-K"
ticker: "MKSI"
cik: "0001049502"
company_name: "MKS INC"
filed_at: "2025-02-12T23:59:59+00:00"
generated_at: "2026-05-26T22:40:06.079282+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# MKS Instruments Reports Q4 2024 Revenue of $935M, Above Guidance Midpoint

## Summary
- Q4 2024 revenue of $935 million, above midpoint of guidance
- GAAP net income of $90 million, EPS of $1.33 per diluted share
- Non-GAAP EPS of $2.15, above midpoint of guidance; Adjusted EBITDA of $237 million
- Q1 2025 guidance: revenue of $910M ± $40M, Non-GAAP EPS of $1.40 ± $0.27
- Voluntary $100 million principal prepayment on term loan B in January 2025

## SEC filing metadata
- accession: 0000950170-25-018919
- form_type: 8-K
- ticker: MKSI
- cik: 0001049502
- company_name: MKS INC
- filed_at: 2025-02-12T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1049502/000095017025018919/0000950170-25-018919-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1049502/000095017025018919/mksi-20250212.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-018919
- JSON: https://secwatch.observer/filing/0000950170-25-018919.json
- Plain text: https://secwatch.observer/filing/0000950170-25-018919.txt

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