SLESSOR MIKE

PrivateCIK: 1590177
Location

LIVERMORE, CA

SLESSOR MIKE (CEO) sold 2.1% of their position (9.44K shares) of FORMFACTOR INC on the open market

Open‑market sale worth $1.19M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 12 sales
InsiderSLESSOR MIKECIK 1590177
IssuerFORMFACTOR INCCIK 1039399
DirectorOfficer· CEO
Since Jul 2018
-9.44K
Net shares
Net seller
$1.19M
Total sold
12
Open market trades
0B · 12S
12
Total transactions
9.44K disposed
Non-Derivative Transactions12

Common Stock

Direct
S · Sale

Shares

700.00

Price / share

$122.84

Trade value

$85.99K

% of position

0.2%
5/13/2026
456.48K455.77K

Common Stock

Direct
S · Sale

Shares

1.30K

Price / share

$123.72

Trade value

$160.84K

% of position

0.3%
5/13/2026
455.77K454.48K

Common Stock

Direct
S · Sale

Shares

2.98K

Price / share

$124.71

Trade value

$372.13K

% of position

0.7%
5/13/2026
454.48K451.49K

Common Stock

Direct
S · Sale

Shares

1.39K

Price / share

$125.58

Trade value

$174.31K

% of position

0.3%
5/13/2026
451.49K450.10K

Common Stock

Direct
S · Sale

Shares

398.00

Price / share

$126.59

Trade value

$50.38K

% of position

0.1%
5/13/2026
450.10K449.70K

Common Stock

Direct
S · Sale

Shares

100.00

Price / share

$127.47

Trade value

$12.75K

% of position

0.0%
5/13/2026
449.70K449.61K

Common Stock

Direct
S · Sale

Shares

700.00

Price / share

$128.52

Trade value

$89.96K

% of position

0.2%
5/13/2026
449.61K448.90K

Common Stock

Direct
S · Sale

Shares

700.00

Price / share

$129.33

Trade value

$90.53K

% of position

0.2%
5/13/2026
448.90K448.20K

Common Stock

Direct
S · Sale

Shares

200.00

Price / share

$130.57

Trade value

$26.11K

% of position

0.0%
5/13/2026
448.20K448K

Common Stock

Direct
S · Sale

Shares

200.00

Price / share

$132.63

Trade value

$26.53K

% of position

0.0%
5/13/2026
448K447.81K

Common Stock

Direct
S · Sale

Shares

66.00

Price / share

$135.73

Trade value

$8.96K

% of position

0.0%
5/13/2026
447.81K447.74K

Common Stock

Direct
S · Sale

Shares

702.00

Price / share

$136.15

Trade value

$95.58K

% of position

0.2%
5/13/2026
447.74K447.04K
Total

Net shares

9.44K

Net value

-$1.19M

Derivative Transactions0
No derivative transactions reported
SLESSOR MIKE — Insider Transaction (Form 4) Filed May 14, 2026 | Finecho