Michael Slessor

Chief Executive Officer at FORMFACTOR, INC.

Net worth: 56 M $ as of 2026-05-30

56 year

Electronic Technology

Consumer Services

Profile

Dr. Michael D.
Slessor is an Independent Director at Benchmark Electronics, Inc., a President, Chief Executive Officer & Director at FormFactor, Inc., a President at FormFactor Beaverton, Inc. and a President & Chief Executive Officer at Astria Semiconductor Holdings, Inc. He is on the Board of Directors at Benchmark Electronics, Inc. and FormFactor, Inc. Dr. Slessor was previously employed as a President & Chief Executive Officer by Micro-Probe, Inc. and a Chief Executive Officer by The Micromanipulator Co., Inc. He received his undergraduate degree from the University of British Columbia and a doctorate degree from California Institute of Technology.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
FORMFACTOR, INC. 0.57%	2026-05-12	447,037 ( 0.57% )	56 M $	2026-05-30
BENCHMARK ELECTRONICS, INC. 0.01%	2026-05-26	4,349 ( 0.01% )	367 317 $	2026-05-30

Michael Slessor active positions

Companies	Position	Start
FORMFACTOR, INC.	Chief Executive Officer	2014-12-27
CASCADE MICROTECH, INC.	President	-
BENCHMARK ELECTRONICS, INC.	Director/Board Member	2025-10-06
Astria Semiconductor Holdings, Inc. Astria Semiconductor Holdings, Inc. Electronic Equipment/InstrumentsElectronic Technology Develops and supports probe card technologies and products	Chief Executive Officer	2011-05-15

All active positions of Michael Slessor

Former positions of Michael Slessor

Companies	Position	End
The Micromanipulator Co., Inc. The Micromanipulator Co., Inc. Electronic Production EquipmentElectronic Technology Manufactures analytical probing equipment for the semiconductor industry	Chief Executive Officer	2013-09-30
Micro-Probe, Inc. Micro-Probe, Inc. Electronic Equipment/InstrumentsElectronic Technology Develops and supports probe card technologies and products	Chief Executive Officer	2012-09-30

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Linked companies

Private companies	8
Benchmark Electronics, Inc. Benchmark Electronics, Inc. Electronic Production EquipmentElectronic Technology Provides integrated electronic manufacturing services, engineering and design services, and precision machining services	Electronic Technology
FormFactor Beaverton, Inc. FormFactor Beaverton, Inc. Electronic Equipment/InstrumentsElectronic Technology Manufactures wafer probe cards and test & measurement products	Electronic Technology
FormFactor, Inc. FormFactor, Inc. SemiconductorsElectronic Technology Designs, develops, manufactures, sells and supports semiconductor wafer probe card products and solutions	Electronic Technology
Astria Semiconductor Holdings, Inc. Astria Semiconductor Holdings, Inc. Electronic Equipment/InstrumentsElectronic Technology Develops and supports probe card technologies and products	Electronic Technology
California Institute of Technology California Institute of Technology Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
University of British Columbia University of British Columbia Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
The Micromanipulator Co., Inc. The Micromanipulator Co., Inc. Electronic Production EquipmentElectronic Technology Manufactures analytical probing equipment for the semiconductor industry	Electronic Technology
Micro-Probe, Inc. Micro-Probe, Inc. Electronic Equipment/InstrumentsElectronic Technology Develops and supports probe card technologies and products	Electronic Technology