About
Ms. Holt served as president and chief executive officer of Proto Labs, Inc., a manufacturer of custom prototypes and on-demand product parts, from 2014 until her retirement in 2021, and previously led Spartech Corporation from 2010 until its 2013 sale to PolyOne. Earlier she was senior vice president, Glass & Fiberglass at PPG Industries, Inc. from 2003 to 2010. She currently serves on the boards of Waste Management, Inc. and Piper Sandler Companies, and chairs A. O. Smith's Nominating and Governance Committee.
Roles
Smith A O Corp.
Retired President and Chief Executive Officer, Proto Labs, Inc. · Current role
2021–present
Proto Labs, Inc.
President and Chief Executive Officer
2014–2021
Spartech Corporation
President and Chief Executive Officer · Until its sale to PolyOne in 2013
2010–2013
PPG Industries, Inc.
Senior Vice President, Glass & Fiberglass
2003–2010
External Roles
Waste Management, Inc.
Director
—
Piper Sandler Companies
Director
—
Director Compensation
FY 2025Fees earned or paid in cash
$122,250
Stock awards
$150,005
Total
$272,255
Also at Smith A O Corp.
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