Mayampurath Ramakumar sold MKSI

May 22, 2026 · Form 4 insider transaction

Mayampurath Ramakumar sold 8,810 shares of MKS Inc. at $315.48 per share, a transaction worth $2.78M. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.

Direction
Disposed (sell-side)
Shares
8,810
Price
$315.48
Total value
$2.78M
RoleOfficer
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateMay 22, 2026
Filing dateMay 26, 2026
Shares owned after1
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 20, 2026.

View the original Form 4 on SEC EDGAR