Henry David Philip sold MKSI
May 26, 2026 · Form 4 insider transaction
Henry David Philip sold 2,500 shares of MKS Inc. at $330.50 per share, a transaction worth $826.3K. 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
2,500
Price
$330.50
Total value
$826.3K
InsiderHenry David Philip
Role—
CompanyMKS Inc. (MKSI)
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateMay 26, 2026
Filing dateMay 27, 2026
Shares owned after16,341
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026.