FormFactor Inc. FormFactor Inc.
Last updated September 27, 2026
Organization details
- Legal name
- FormFactor Inc. FormFactor Inc.
- Ownership
- Public
- Status
- Active
- 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
-
Brian C. White · DirectorSince 2023
-
Dennis Thomas St · DirectorSince 2023
-
Jorge Titinger · DirectorSince 2023
-
Kelley Steven-Waiss · DirectorSince 2023
-
Kevin J. Brewer · DirectorSince 2024
-
Lothar Maier · DirectorSince 2023
-
Mike Slessor · Director · CEOSince 2023
-
Raymond A. Link · DirectorSince 2023
-
Rebeca Obregon-Jimenez · DirectorSince 2023
-
Sheri Rhodes · DirectorSince 2023
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.
-
98.0%
-
98.5%
-
99.3%
-
99.4%
-
99.8%
-
99.8%
Board connections
6 of this board's directors also sit on 7 other boards.
- via Dennis Thomas St and Jorge Titinger
- via Brian C. White
- via Mike Slessor
- via Jorge Titinger
- via Lothar Maier
- via Dennis Thomas St
- via Raymond A. Link
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
- $22,050,043
- 72 sales by 9 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| 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 |
| Sep 3, 2026 | Kelley Steven-Waiss Director | Open-market sale | −2,100 | $96.10 | $201,810 |
| Aug 14, 2026 | Mike Slessor Director, Officer (CEO) | Open-market sale | −2,482 | $128.72 | $319,483 |
| Aug 14, 2026 | Mike Slessor Director, Officer (CEO) | Open-market sale | −2,892 | $129.55 | $374,659 |
| Aug 14, 2026 | Mike Slessor Director, Officer (CEO) | Open-market sale | −3,282 | $130.54 | $428,432 |
| Aug 14, 2026 | Mike Slessor Director, Officer (CEO) | Open-market sale | −1,125 | $131.65 | $148,106 |
| Aug 14, 2026 | Mike Slessor Director, Officer (CEO) | Open-market sale | −5,535 | $132.50 | $733,388 |
| Aug 14, 2026 | Mike Slessor Director, Officer (CEO) | Open-market sale | −686 | $133.33 | $91,464 |
| Aug 7, 2026 | Mike Slessor Director, Officer (CEO) | Option exercise | +141,792 | — | — |
| Aug 7, 2026 | Mike Slessor Director, Officer (CEO) | Shares withheld for tax | −78,908 | $117.39 | $9,263,010 |
| Aug 7, 2026 | Mike Slessor Director, Officer (CEO) | Option exercise | +5,908 | — | — |
| Aug 7, 2026 | Mike Slessor Director, Officer (CEO) | Shares withheld for tax | −3,288 | $117.39 | $385,978 |
| Aug 6, 2026 | McKinnis Aric Brendan Officer (CFO, SVP Global Finance) | Option exercise | +1,099 | — | — |
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