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FORM - Formfactor Inc

Insider Sale by Slessor Mike (CEO)

1 Month
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Trade Summary

5 days ago, Slessor Mike, serving as CEO at Formfactor Inc (FORM), sold 10,227 shares at $95.15 per share, for a total transaction value of $973,076.00. Following this transaction, Slessor Mike now holds 460,859 shares of FORM.

This sale represents a 2.00% decrease in Slessor Mike's stake in the company. This is considered a medium-conviction trade.

The trade was executed on Wednesday, March 18, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, March 18, 2026, meaning the disclosure happened on the same day as the trade.

Formfactor Inc operates in the TECHNOLOGY sector, specifically within the SEMICONDUCTOR EQUIPMENT & MATERIALS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Slessor Mike

CEO

Michael D. Slessor is the President, Chief Executive Officer, and Director of FormFactor, Inc. (NASDAQ: FORM), a leading provider of semiconductor test and measurement technologies.[[1]](https://fintool.com/app/research/companies/FORM/people/michael-slessor)[[2]](https://www.clay.com/dossier/formfactor-ceo)[[3]](https://www.formfactor.com/company/board-of-directors/) Aged 55, he joined FormFactor in October 2012 through the acquisition of MicroProbe, Inc., where he served as President and CEO from 2008 to 2012; he advanced to Senior Vice President and General Manager of the MicroProbe Product Group (2012–2013), President in October 2013, and CEO in December 2014 (noted as January 2015 in some sources).[[1]](https://fintool.com/app/research/companies/FORM/people/michael-slessor)[[2]](https://www.clay.com/dossier/formfactor-ceo)[[3]](https://www.formfactor.com/company/board-of-directors/) Slessor holds a Ph.D. in Aeronautics and Physics from the California Institute of Technology (Caltech) and a B.A.Sc. in Engineering Physics (First Class Honors) from the University of British Columbia.[[1]](https://fintool.com/app/research/companies/FORM/people/michael-slessor)[[2]](https://www.clay.com/dossier/formfactor-ceo)[[3]](https://www.formfactor.com/company/board-of-directors/) His earlier career includes leadership roles at KLA-Tencor in management, product marketing, and applications engineering, and as Managing Director of Technology Transfer at Caltech (2005–2007).[[2]](https://www.clay.com/dossier/formfactor-ceo) Under his leadership, FormFactor achieved 15.2% revenue growth to $764 million in 2024, with improved gross margins and strong shareholder returns.[[1]](https://fintool.com/app/research/companies/FORM/people/michael-slessor)

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Trade Price

$95.15

Quantity

10,227

Total Value

$973,076.00

Shares Owned

460,859

Trade Date

Wednesday, March 18, 2026

5 days ago

SEC Filing Date

Wednesday, March 18, 2026

TECHNOLOGYSEMICONDUCTOR EQUIPMENT & MATERIALS

About Formfactor Inc

Company Overview

No company information available
View news mentioning FORM

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