Trade Summary

2 days ago, Henry David Philip, serving as EVP, Global Str Mktg & GM, MSD at MKS INC (MKSI), sold 2,500 shares at $330.50 per share, for a total transaction value of $826,250.00. Following this transaction, Henry David Philip now holds 16,341 shares of MKSI.

This sale represents a 13.27% decrease in Henry David Philip's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Tuesday, May 26, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, May 27, 2026 at 5:07 PM ET, 1 day after the trade was made.

MKS INC operates in the TECHNOLOGY sector, specifically within the SCIENTIFIC & TECHNICAL INSTRUMENTS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.