Please use the form below to contact MKS Instruments Investor Relations:
Primary IR Contact:
Paretosh Misra, Vice President, Investor Relations
MKS Instruments, Inc.,
2 Tech Drive, Suite 201, Andover, MA 01810
Phone: +1 (978) 284-4705
Transfer Agent:
Equiniti Trust Company, LLC
48 Wall Street, Floor 23
New York, NY 10005
Phone (US Shareholders): +1 (800) 937-5449
Phone (Non-US Shareholders): +1 (718) 921-8124
Email: HelpAST@equiniti.com
https://equiniti.com/us/ast-access/