February 20, 2026 · Form 4 insider transaction
Lee John Tseng-Chung sold 13,310 shares of MKS Inc. at $256.05 per share, a transaction worth $3.41M. The trade was recorded as open-market sale and disclosed on an SEC Form 4, filed 3 days after the transaction.
This transaction was executed in multiple trades at prices ranging from $255.425 to $256.415. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon request, the full information regarding the number of shares and prices at which the transaction was effected.