---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-313519"
form_type: "8-K"
ticker: "MKSI"
cik: "0001049502"
company_name: "MKS INC"
filed_at: "2021-10-29T23:59:59+00:00"
generated_at: "2026-06-28T16:04:22.915526+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# MKS amends Atotech deal terms, accelerates equity vesting if closed by Dec 31; appoints new COO for Atotech division

## Summary
- Letter Agreement accelerates vesting of Atotech RSUs vesting by Jan 1, 2022 if deal closes by Dec 31, 2021; PSUs settled at greater of target or actual 2021 EBITDA.
- James Schreiner appointed COO of Atotech Division at closing; base salary $465,000; $500,000 expatriate service bonus.
- Geoff Wild (Atotech CEO) elected to MKS board as Class III director effective at closing.
- Atotech per-share consideration unchanged: $16.20 cash + 0.0552 MKS share; total approx $5.1B.

## SEC filing metadata
- accession: 0001193125-21-313519
- form_type: 8-K
- ticker: MKSI
- cik: 0001049502
- company_name: MKS INC
- filed_at: 2021-10-29T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1049502/000119312521313519/0001193125-21-313519-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1049502/000119312521313519/d241466d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-313519
- JSON: https://secwatch.observer/filing/0001193125-21-313519.json
- Plain text: https://secwatch.observer/filing/0001193125-21-313519.txt

## Key facts
- Executive change
  James A. Schreiner was appointed as Senior Vice President and Chief Operating Officer, Atotech Division at MKS INC.
  - Action: appointed
  - Role: Senior Vice President and Chief Operating Officer, Atotech Division
  source text: On October 25, 2021, the Board of Directors (the “Board”) of the Company appointed James A. Schreiner, who currently serves as the Company’s Senior Vice President and Chief Operating Officer, to the position of Senior Vice President and Chief Operating Officer, Atotech Division, subject to and effective upon the Closing of the Acquisition.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1049502/000119312521313519/0001193125-21-313519-index.htm
- Executive change
  Geoff Wild was elected as Class III Director at MKS INC.
  - Action: elected
  - Role: Class III Director
  source text: On October 25, 2021, the Board elected Geoff Wild as a Class III Director, effective immediately following the Closing of the Acquisition, to fill the existing vacancy on the Board, and to serve until the 2023 Annual Meeting of Shareholders.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1049502/000119312521313519/0001193125-21-313519-index.htm

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