FORMFACTOR INC

By person

16 insiders · 231 transactions

70.0×

Michael D. Slessor holds 70.0 times base salary in stock. $46.53M of shares against $664.62K in salary for 2025.

Salary from the company's own proxy. The shares are what Michael D. Slessor last reported holding, valued at $96.10, the price Common Stock was last bought or sold at on the open market here, on 3 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

SLESSOR MIKE

CEO

—

$33.06M (111) scheduled

−$33.06M

484,204

0.6198%

$46.53M

+125.4%

St Dennis Thomas

Director

—

$13.14M (32) scheduled

−$13.14M

74,333

0.0952%

$7.14M

−65.5%

MAIER LOTHAR

Director

—

$5.49M (1)

−$5.49M

6,770

0.0087%

$650.60K

−87.2%

Shahar Shai

CFO, SVP Global Finance

—

$3.91M (15)

−$3.91M

55,968

0.0716%

$5.38M

—

STEVEN-WAISS KELLEY

Director

—

$2.56M (16)

−$2.56M

24,426

0.0313%

$2.35M

+125.5%

Rhodes Sheri

Director

—

$2.43M (5)

−$2.43M

5,375

0.0069%

$516.54K

+11.2%

DeLateur Richard

Director

—

$2.32M (7) scheduled

−$2.32M

25,000

0.0320%

$2.40M

+13.6%

ROGAS EDWARD JR

Director

—

$2.21M (7)

−$2.21M

61,098

0.0782%

$5.87M

−31.4%

LUDWIG MICHAEL M

SR VP, CFO

—

$1.83M (9) scheduled

−$1.83M

240,387

0.3077%

$23.10M

+14.7%

Obregon-Jimenez Rebeca

Director

—

$1.79M (7)

−$1.79M

13,126

0.0168%

$1.26M

+30.2%

WHITE BRIAN C

Director

—

$1.33M (4)

−$1.33M

8,653

0.0111%

$831.55K

+91.4%

Titinger Jorge

Director

—

$977.93K (3)

−$977.93K

14,836

0.0190%

$1.43M

+207.0%

ZELLNER MICHAEL W

Director

—

$720.62K (4)

−$720.62K

41,875

0.0536%

$4.02M

−12.8%

LINK RAYMOND A

Director

$17.90K (1)

$481.76K (6)

−$463.86K

66,225

0.0848%

$6.36M

+94.2%

McKinnis Aric Brendan

CFO, SVP Global Finance

—

$313.03K (1)

−$313.03K

14,152

0.0181%

$1.36M

+24.7%

BREWER KEVIN J

Director

—

$288.60K (1)

−$288.60K

8,105

0.0104%

$778.89K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

SLESSOR MIKE

14 Aug 2026

CEO

Sold on a plan

686

$133.33

$91.46K

SLESSOR MIKE

14 Aug 2026

CEO

Sold on a plan

5,535

$132.50

$733.39K

SLESSOR MIKE

14 Aug 2026

CEO

Sold on a plan

1,125

$131.65

$148.11K

SLESSOR MIKE

14 Aug 2026

CEO

Sold on a plan

3,282

$130.54

$428.43K

SLESSOR MIKE

14 Aug 2026

CEO

Sold on a plan

2,892

$129.55

$374.66K

SLESSOR MIKE

14 Aug 2026

CEO

Sold on a plan

2,482

$128.72

$319.48K

SLESSOR MIKE

15 Jul 2026

CEO

Sold on a plan

868

$121.30

$105.29K

SLESSOR MIKE

15 Jul 2026

CEO

Sold on a plan

300

$120.58

$36.17K

SLESSOR MIKE

15 Jul 2026

CEO

Sold on a plan

170

$119.08

$20.24K

SLESSOR MIKE

15 Jul 2026

CEO

Sold on a plan

706

$118.21

$83.46K

SLESSOR MIKE

15 Jul 2026

CEO

Sold on a plan

1,650

$117.39

$193.69K

SLESSOR MIKE

15 Jul 2026

CEO

Sold on a plan

1,041

$116.56

$121.34K

SLESSOR MIKE

10 Jun 2026

CEO

Sold on a plan

1,629

$123.37

$200.97K

SLESSOR MIKE

10 Jun 2026

CEO

Sold on a plan

2,500

$122.63

$306.58K

SLESSOR MIKE

10 Jun 2026

CEO

Sold on a plan

4,220

$121.72

$513.66K

SLESSOR MIKE

10 Jun 2026

CEO

Sold on a plan

975

$121.00

$117.98K

SLESSOR MIKE

10 Jun 2026

CEO

Sold on a plan

400

$119.46

$47.78K

SLESSOR MIKE

10 Jun 2026

CEO

Sold on a plan

767

$119.00

$91.27K

SLESSOR MIKE

10 Jun 2026

CEO

Sold on a plan

1,399

$117.70

$164.66K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

702

$136.15

$95.58K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

$135.73

$8.96K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

200

$132.63

$26.53K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

200

$130.57

$26.11K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

700

$129.33

$90.53K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

700

$128.52

$89.96K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

100

$127.47

$12.75K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

398

$126.59

$50.38K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

1,388

$125.58

$174.31K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

2,984

$124.71

$372.13K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

1,300

$123.72

$160.84K

SLESSOR MIKE

13 May 2026

CEO

Sold on a plan

700

$122.84

$85.99K

SLESSOR MIKE

15 Apr 2026

CEO

Sold on a plan

767

$129.22

$99.11K

SLESSOR MIKE

15 Apr 2026

CEO

Sold on a plan

5,432

$128.56

$698.34K

SLESSOR MIKE

15 Apr 2026

CEO

Sold on a plan

2,369

$127.65

$302.40K

SLESSOR MIKE

15 Apr 2026

CEO

Sold on a plan

900

$126.58

$113.92K

SLESSOR MIKE

15 Apr 2026

CEO

Sold on a plan

1,826

$125.24

$228.69K

SLESSOR MIKE

18 Mar 2026

CEO

Sold on a plan

2,832

$95.73

$271.11K

SLESSOR MIKE

18 Mar 2026

CEO

Sold on a plan

5,495

$95.21

$523.18K

SLESSOR MIKE

18 Mar 2026

CEO

Sold on a plan

1,900

$94.10

$178.79K

SLESSOR MIKE

18 Feb 2026

CEO

Sold on a plan

2,896

$94.79

$274.51K

SLESSOR MIKE

18 Feb 2026

CEO

Sold on a plan

4,934

$93.97

$463.65K

SLESSOR MIKE

18 Feb 2026

CEO

Sold on a plan

834

$92.85

$77.44K

SLESSOR MIKE

15 Jan 2026

CEO

Sold on a plan

6,112

$77.24

$472.09K

SLESSOR MIKE

15 Jan 2026

CEO

Sold on a plan

6,976

$76.43

$533.18K

SLESSOR MIKE

6 Jan 2026

CEO

Sold on a plan

39,606

$65.00

$2.57M

SLESSOR MIKE

17 Dec 2025

CEO

Sold on a plan

2,063

$56.82

$117.22K

SLESSOR MIKE

17 Dec 2025

CEO

Sold on a plan

5,606

$56.19

$315.00K

SLESSOR MIKE

19 Nov 2025

CEO

Sold on a plan

3,664

$50.60

$185.40K

SLESSOR MIKE

19 Nov 2025

CEO

Sold on a plan

4,739

$49.65

$235.29K

SLESSOR MIKE

1 Jul 2025

CEO

Sold on a plan

4,000

$34.03

$136.12K

SLESSOR MIKE

2 Jun 2025

CEO

Sold on a plan

4,000

$29.83

$119.32K

SLESSOR MIKE

1 May 2025

CEO

Sold on a plan

4,000

$31.72

$126.88K

SLESSOR MIKE

1 Apr 2025

CEO

Sold on a plan

4,000

$28.24

$112.98K

SLESSOR MIKE

3 Mar 2025

CEO

Sold on a plan

4,000

$33.05

$132.20K

SLESSOR MIKE

3 Feb 2025

CEO

Sold on a plan

100

$39.53

$3.95K

SLESSOR MIKE

3 Feb 2025

CEO

Sold on a plan

3,900

$38.97

$151.98K

SLESSOR MIKE

2 Jan 2025

CEO

Sold on a plan

400

$45.01

$18.00K

SLESSOR MIKE

2 Jan 2025

CEO

Sold on a plan

3,600

$44.38

$159.77K

SLESSOR MIKE

2 Dec 2024

CEO

Sold on a plan

101

$41.17

$4.16K

SLESSOR MIKE

2 Dec 2024

CEO

Sold on a plan

3,899

$40.57

$158.18K

SLESSOR MIKE

1 Nov 2024

CEO

Sold on a plan

4,000

$38.81

$155.25K

SLESSOR MIKE

1 Oct 2024

CEO

Sold on a plan

1,000

$46.00

$46.00K

SLESSOR MIKE

1 Oct 2024

CEO

Sold on a plan

3,000

$45.04

$135.13K

SLESSOR MIKE

3 Sep 2024

CEO

Sold on a plan

1,188

$47.17

$56.04K

SLESSOR MIKE

3 Sep 2024

CEO

Sold on a plan

2,812

$45.94

$129.20K

SLESSOR MIKE

1 Jul 2024

CEO

Sold on a plan

682

$60.57

$41.31K

SLESSOR MIKE

1 Jul 2024

CEO

Sold on a plan

995

$59.24

$58.94K

SLESSOR MIKE

1 Jul 2024

CEO

Sold on a plan

2,323

$58.44

$135.75K

SLESSOR MIKE

3 Jun 2024

CEO

Sold on a plan

1,230

$54.83

$67.45K

SLESSOR MIKE

3 Jun 2024

CEO

Sold on a plan

2,770

$54.17

$150.05K

SLESSOR MIKE

1 May 2024

CEO

Sold on a plan

4,000

$43.75

$174.98K

SLESSOR MIKE

1 Apr 2024

CEO

Sold on a plan

4,000

$45.94

$183.75K

SLESSOR MIKE

1 Mar 2024

CEO

Sold on a plan

4,000

$43.38

$173.52K

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