Henry David Philip sold MKSI

September 18, 2025 · Form 4 insider transaction

Henry David Philip sold 5,000 shares of MKS Inc. at $130.00 per share, a transaction worth $650.0K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Disposed (sell-side)
Shares
5,000
Price
$130.00
Total value
$650.0K
Role
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateSeptember 18, 2025
Filing dateSeptember 19, 2025
Shares owned after15,571
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 12, 2025.

View the original Form 4 on SEC EDGAR