Formfactor Inc (FORM) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of FORM are Mike Slessor (Ceo, 471.09K shares), Raymond A Link (Director, 66.22K shares), Shai Shahar (Cfo, Svp Global Finance, 55.97K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Mike Slessor Ceo 460,859 0 18 Mar, 2026
Raymond A Link 66,225 0 30 May, 2023
Shai Shahar Cfo, Svp Global Finance 55,968 0 08 Aug, 2025
Dennis Thomas St 31,526 0 11 Feb, 2026
Kelley Steven-Waiss 30,579 0 11 Feb, 2026
Edward Jr Rogas 22,098 0 18 May, 2021
Jorge Titinger 17,498 0 10 Feb, 2026
Aric Brendan Mckinnis Cfo, Svp Global Finance 11,140 0 06 Mar, 2026
Brian C White 10,556 0 25 Feb, 2026
Rebeca Obregon-Jimenez 10,356 0 10 Feb, 2026
Sheri Rhodes 10,356 0 11 Feb, 2026
Lothar Maier 6,770 0 15 May, 2024

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
18 Mar, 2026 Mike Slessor Common Stock D 1,900 $94.10 469,186 D S
18 Mar, 2026 Mike Slessor Common Stock D 5,495 $95.21 463,691 D S
18 Mar, 2026 Mike Slessor Common Stock D 2,832 $95.73 460,859 D S
05 Mar, 2026 Aric Brendan Mckinnis Common Stock D 3,462 $90.42 11,140 D S
02 Mar, 2026 Aric Brendan Mckinnis Common Stock A 773 $0.00 14,795 D M
02 Mar, 2026 Aric Brendan Mckinnis Common Stock D 193 $99.70 14,602 D F
02 Mar, 2026 Aric Brendan Mckinnis Restricted Stock Units D 773 $0.00 773 D M
24 Feb, 2026 Brian C White Common Stock D 2,300 $100.01 10,556 D S
18 Feb, 2026 Mike Slessor Common Stock D 834 $92.85 478,916 D S
18 Feb, 2026 Mike Slessor Common Stock D 4,934 $93.97 473,982 D S
18 Feb, 2026 Mike Slessor Common Stock D 2,896 $94.79 471,086 D S
10 Feb, 2026 Kelley Steven-Waiss Common Stock D 2,200 $93.70 30,579 D S
09 Feb, 2026 Mike Slessor Common Stock A 5,908 $0.00 483,038 D M
10 Feb, 2026 Sheri Rhodes Common Stock D 7,634 $92.61 10,356 D S
10 Feb, 2026 Dennis Thomas St Common Stock D 5,601 $93.71 33,356 D S
09 Feb, 2026 Mike Slessor Common Stock D 3,288 $94.88 479,750 D F
10 Feb, 2026 Dennis Thomas St Common Stock D 1,830 $94.24 31,526 D S
09 Feb, 2026 Mike Slessor Restricted Stock Units D 5,908 $0.00 11,816 D M
09 Feb, 2026 Jorge Titinger Common Stock D 2,000 $88.84 17,498 D S
09 Feb, 2026 Brian C White Common Stock D 5,500 $90.95 12,856 D S