Mary Rhinehart

Mary K.
Rhinehart is currently Chairman at The Lubrizol Corp.
since 2022.
She is an Independent Non-Executive Director at CRH Plc since 2018.
She serves as Director at the University of Colorado Hospital, Trustee at the University of Denver, and is a Member of The International Women's Forum and The Colorado Forum.
Formerly, Ms. Rhinehart was President & Chief Executive Officer at Marmon Crane Services, Inc. She was Chairman, President & Chief Executive Officer at Johns Manville Corp.
from 2014 to 2020.
She served as Chairman at Craig Hospital and held director roles at Ply Gem Industries, Inc., Denver Metro Chamber of Commerce, The Kempe Foundation for the Prevention & Treatment, and Advanced Energy United, Inc. She was an Independent Director at Graphic Packaging Holding Co. from 2021 to 2025, at CoBiz Financial, Inc. from 2008 to 2018, and at Ply Gem Holdings, Inc. from 2014 to 2018.
Education includes undergraduate studies at The University of Colorado and an MBA from the University of Denver.