Trade Summary

Yesterday, COLELLA GERALD G, serving as Dir at MKS INC (MKSI), sold 20,000 shares at $333.40 per share, for a total transaction value of $6,668,075.08. Following this transaction, COLELLA GERALD G now holds 20,017 shares of MKSI.

This sale represents a 49.98% decrease in COLELLA GERALD G's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Wednesday, May 27, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, May 28, 2026 at 2:04 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.