Mike Slessor

CEO · FormFactor

Mike Slessor (CEO) filed 13 Form 4 reports in the trailing twelve months (0 purchases, 13 sales), most often in FormFactor, Inc. (FORM). The largest single filing was $2.6M of FORM (39,606 sh × $65.00, as filed), executed Jan 6. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months

–

no purchases on file

Delay-adjustediThe same average, entered at disclosure dates

–

returns measure stock purchases only

Filings, ttm

0 buys · 13 sells

Median delay

–

measured on stock purchases

Volume, ttmiDollar value disclosed in the trailing twelve months

$14.7M

shares × price, as filed

Last traded

Oct 14

Filed Oct 14

Median ADV $204.8M across their filed names

Open performance→

Volume by month

Buys $0 Sells $16.2M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Technology 13 filings

Sector per market data · by filing · past 12 months

Most traded names

FORM

FormFactor, Inc. FORM · 0 buys · 21 sells 21 filings

Recent filings

FORMSALE FormFactor, Inc. View filing → $738K
7,830 sh across 2 lots
Exec Feb 18
Filed Feb 18 · 5:30 PM ET FORMSALE FormFactor, Inc. View filing → $1.0M
13,088 sh across 2 lots
Exec Jan 15
Filed Jan 15 · 5:30 PM ET FORMSALE FormFactor, Inc. View filing → $2.6M
39,606 sh × $65.00
Exec Jan 6
Filed Jan 6 · 5:30 PM ET FORMSALE FormFactor, Inc. View filing → $432K
7,669 sh across 2 lots
Exec Dec 17 2025
Filed Dec 17 2025 · 5:30 PM ET FORMSALE FormFactor, Inc. View filing → $421K
8,403 sh across 2 lots
Exec Nov 19 2025
Filed Nov 19 2025 · 5:30 PM ET FORMSALE FormFactor, Inc. View filing → $136K
4,000 sh × $34.03
Exec Jul 1 2025
Filed Jul 2 2025 · 5:30 PM ET FORMSALE FormFactor, Inc. View filing → $119K
4,000 sh × $29.83
Exec Jun 2 2025
Filed Jun 3 2025 · 5:30 PM ET FORMSALE FormFactor, Inc. View filing → $127K
4,000 sh × $31.72
Exec May 1 2025
Filed May 1 2025 · 5:30 PM ET More filings →