• MKS: EVP and COO James Alan Schreiner sold 3,500 common shares on June 12, 2026.
• Sales priced at USD 345.52 to USD 347 per share.
• Directly owned stake fell to 19,201 shares following the transactions.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. MKS Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001049502-26-000109), on June 16, 2026, and is solely responsible for the information contained therein.