Form 4: CEO Slessor Sells FORM Stock Under 10b5-1 Plan

FormFactor Inc. CEO Mike Slessor sold 39,606 shares of common stock for $65 per share on January 6, 2026, as part of a pre-arranged 10b5-1 trading plan.

Summary

• Mike Slessor, CEO and Director of FormFactor Inc. (FORM), reported a transaction involving the sale of company stock.
• He disposed of 39,606 shares of Common Stock.
• The transaction occurred on January 6, 2026, at a price of $65 per share.
• This sale was executed automatically pursuant to a Rule 10b5-1 trading plan, which was adopted on August 19, 2025.
• Following this reported transaction, Slessor directly beneficially owns 485,995 shares of Common Stock.

Sentiment

Score: 5

Explanation: The sale of shares by CEO Mike Slessor was executed automatically pursuant to a pre-arranged Rule 10b5-1 trading plan, which typically indicates a planned liquidity event rather than a reaction to new information about the company's prospects. This makes the transaction largely neutral in terms of immediate sentiment.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future performance.

Industry Context

This insider transaction report (Form 4) details a pre-planned stock sale by a key executive and does not provide broader industry context or trends.

Stakeholder Impact

• Shareholders: A reduction in insider ownership, even if pre-planned, could be viewed with slight caution by some investors, though the 10b5-1 plan mitigates concerns about opportunistic selling.

Key Dates

Recommendation

The reported sale by CEO Mike Slessor was conducted under a Rule 10b5-1 trading plan, established well in advance of the transaction date. Such pre-scheduled sales are generally considered routine for executive compensation and personal financial planning, rather than an indication of management's current outlook on the company's future performance. Therefore, this specific transaction alone does not warrant a change in investment recommendation.

Keywords

FormFactor Inc., FORM, Mike Slessor, Insider Trading, SEC Form 4, Stock Sale, 10b5-1 Plan, CEO, Director