FormFactor Inc. FormFactor Inc.

Last updated September 27, 2026

Organization details

Legal name
FormFactor Inc. FormFactor Inc.
Ownership
Public
Status
Active
Sector (GICS)
Information Technology
SIC code
3674 — Semiconductors & Related Devices
Jurisdiction of incorporation
Delaware
Headquarters city
Livermore
Headquarters state / province
California
Headquarters country
United States
Fiscal year end
December
Ticker symbol
FORM
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001039399
EIN
13-3711155

Board of directors

Chief executives

Mike Slessor · CEO
Dates unknown

Director election results

Annual meeting of May 15, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

6 of this board's directors also sit on 7 other boards. 4 are in the same sector.

Network of FormFactor Inc. FormFactor Inc.'s board connections Axcelis Technologies Inc. Axcelis Technologies I... Allegro MicroSystems Inc. Allegro MicroSystems I... Benchmark Electronics Inc. Benchmark Electronics... Ichor Holdings Ichor Holdings SunPower Inc. SunPower Inc. Veeco Instruments Inc. Veeco Instruments Inc. nLIGHT Inc. nLIGHT Inc. Brian C. White Brian C. White Dennis Thomas St Dennis Thomas St Jorge Titinger Jorge Titinger Lothar Maier Lothar Maier Mike Slessor Mike Slessor Raymond A. Link Raymond A. Link FormFactor Inc. FormFactor...
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$22,050,042
72 sales by 9 insiders
Date Insider Transaction Shares Price Value
Nov 6, 2026 Mike Slessor Director, Officer (CEO) Option exercise +6,031 — —
Nov 6, 2026 McKinnis Aric Brendan Officer (CFO, SVP Global Finance) Option exercise +1,099 — —
Nov 6, 2026 Mike Slessor Director, Officer (CEO) Shares withheld for tax −3,357 $81.12 $272,320
Nov 6, 2026 McKinnis Aric Brendan Officer (CFO, SVP Global Finance) Shares withheld for tax −433 $81.12 $35,125
Nov 6, 2026 Mike Slessor Director, Officer (CEO) Option exercise +2,308 — —
Nov 6, 2026 McKinnis Aric Brendan Officer (CFO, SVP Global Finance) Option exercise +577 — —
Nov 6, 2026 Mike Slessor Director, Officer (CEO) Shares withheld for tax −1,285 $81.12 $104,239
Nov 6, 2026 McKinnis Aric Brendan Officer (CFO, SVP Global Finance) Shares withheld for tax −228 $81.12 $18,495
Nov 5, 2026 Mike Slessor Director, Officer (CEO) Option exercise +3,644 — —
Nov 5, 2026 McKinnis Aric Brendan Officer (CFO, SVP Global Finance) Option exercise +521 — —
Nov 5, 2026 Mike Slessor Director, Officer (CEO) Shares withheld for tax −2,028 $71.76 $145,529
Nov 5, 2026 McKinnis Aric Brendan Officer (CFO, SVP Global Finance) Shares withheld for tax −206 $71.76 $14,783
Sep 16, 2026 Mike Slessor Director, Officer (CEO) Open-market sale −8,737 $104.26 $910,920
Sep 16, 2026 Mike Slessor Director, Officer (CEO) Open-market sale −7,773 $105.12 $817,098
Sep 16, 2026 Mike Slessor Director, Officer (CEO) Open-market sale −1,000 $105.80 $105,800

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Questions about FormFactor Inc. FormFactor Inc.

Who is the CEO of FormFactor Inc. FormFactor Inc.?

Mike Slessor is FormFactor Inc. FormFactor Inc.'s CEO.

How many directors are on FormFactor Inc. FormFactor Inc.'s board?

FormFactor Inc. FormFactor Inc.'s board has 10 directors: Brian C. White, Dennis Thomas St, Jorge Titinger, Kelley Steven-Waiss, Kevin J. Brewer, Lothar Maier, Mike Slessor, Raymond A. Link, Rebeca Obregon-Jimenez and Sheri Rhodes.

Are FormFactor Inc. FormFactor Inc. insiders buying or selling shares?

Over the last 12 months, FormFactor Inc. FormFactor Inc. insiders made no open-market purchases and sold $22.1 million of shares in 72 sales on the open market, as reported to the SEC on Forms 4 and 5.

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