Sep 26, 2025 10:22 AM Eastern Daylight Time Siemens Announces Retirement of USA President & CEO Barbara Humpton Share Ann Fairchild appointed Interim President & CEO of Siemens USA WASHINGTON--(BUSINESS WIRE)--Siemens today announced that Barbara Humpton, President and CEO of Siemens USA, will retire from the company effective October 1, 2025. Ann Fairchild, General Counsel for Siemens USA, has been appointed interim President and CEO of Siemens USA effective October 1. During her 14-year tenure with Siemen ...