FormFactor Inc. (NASDAQ: FORM) reported an insider sale by its chief financial officer on March 5, 2026. Aric Brendan McKinnis, who serves as CFO and senior vice president of global finance, disposed of 3,462 shares of FormFactor common stock, according to a Form 4 filed with the Securities and Exchange Commission.
The shares were sold at $90.42 each, producing a total transaction value of $313,034. After the sale, McKinnis is recorded as directly owning 11,140 shares of the company. The filing specifies that the disposition was carried out automatically pursuant to a pre-arranged Rule 10b5-1 trading plan that McKinnis adopted on December 4, 2025.
The sale occurred against a backdrop of notable recent price movement for FormFactor shares. Over the trailing week the stock has fallen 14 percent, while performance over the past 12 months remains markedly higher, with shares up 167 percent year-over-year. The company is trading at a market capitalization of $6.59 billion.
Outside of insider activity, publicly reported analyst-type valuation commentary referenced in filings indicates that FormFactor appears overvalued on a Fair Value assessment provided by InvestingPro. That platform is noted as offering additional ProTips for the ticker including 18 supplementary insights, according to the same information referenced in the filing.
FormFactor’s most recent reported quarter was the fourth quarter of 2025, in which the company posted results that outpaced consensus expectations. Reported earnings per share were $0.46, compared with a forecast of $0.35, representing a 31.43 percent surprise versus estimates. Revenue for the quarter totaled $215.2 million, above the anticipated $210.25 million.
Despite the upside to consensus on both EPS and revenue, FormFactor’s share price declined during regular trading hours following the release, with a modest rebound in after-hours trading. Those market reactions, together with the insider sale executed under a 10b5-1 plan, form part of the recent public record for the company.
Summary
FormFactor CFO Aric Brendan McKinnis sold 3,462 shares on March 5, 2026 under a Rule 10b5-1 plan for $90.42 per share, totaling $313,034. The company reported a fourth-quarter 2025 earnings beat and revenue above expectations, yet the stock fell during regular trading hours and has shown recent short-term weakness despite strong year-over-year gains.
Context
- Insider transaction: 3,462 shares sold at $90.42 each; proceeds $313,034; post-sale direct ownership 11,140 shares; 10b5-1 plan adopted December 4, 2025.
- Market moves: -14% over the past week; +167% over the past year; market cap $6.59 billion.
- Quarterly results: Q4 2025 EPS $0.46 vs. $0.35 expected (31.43% surprise); revenue $215.2 million vs. $210.25 million expected.