InsiderFlow

FORM

FormFactor, Inc.$139.88+9.64 (+7.40%)
Prev Close$130.24·MCap$9.40B·P/E202.72·Vol883.7K·Yield

Buys (12M)

0

$0.00

Sells (12M)

27

$16.35M

Net Activity

Net Seller

$16.35M

Active Insiders

9

last 12 mo

Over the past 12 months, insider activity at FormFactor, Inc. (FORM) has been exclusively selling, with 0 insider purchases totaling $0.00 and 27 insider sales totaling $16.35M. The most recent insider transaction was by SLESSOR MIKE (director, officer: CEO), who sold $1.44M worth of shares on Jun 11, 2026. FormFactor, Inc. operates in the Technology sector, within the Semiconductors industry, with a market cap of $9.40B.

FORM Insider Trading Activity

DateInsiderTypeValue
Jun 11, 2026 SLESSOR MIKESell$1.44M
Jun 4, 2026 Rhodes SheriSell$793.5K
May 21, 2026 WHITE BRIAN CSell$409.5K
May 21, 2026 St Dennis ThomasSell$115.8K
May 15, 2026 STEVEN-WAISS KELLEYSell$678.2K
May 15, 2026 Titinger JorgeSell$516.3K
May 14, 2026 SLESSOR MIKESell$992.0K
Apr 15, 2026 SLESSOR MIKESell$1.44M
Mar 18, 2026 SLESSOR MIKESell$973.1K
Mar 6, 2026 McKinnis Aric BrendanSell$313.0K
Feb 25, 2026 WHITE BRIAN CSell$230.0K
Feb 18, 2026 SLESSOR MIKESell$815.6K
Feb 12, 2026 BREWER KEVIN JSell$288.6K
Feb 11, 2026 Rhodes SheriSell$707.0K
Feb 11, 2026 St Dennis ThomasSell$697.4K
Feb 11, 2026 STEVEN-WAISS KELLEYSell$206.1K
Feb 10, 2026 Titinger JorgeSell$177.7K
Feb 10, 2026 WHITE BRIAN CSell$500.2K
Jan 15, 2026 SLESSOR MIKESell$1.01M
Jan 6, 2026 SLESSOR MIKESell$2.57M
Dec 17, 2025 SLESSOR MIKESell$432.2K
Dec 2, 2025 STEVEN-WAISS KELLEYSell$151.1K
Nov 19, 2025 SLESSOR MIKESell$420.7K
Nov 17, 2025 St Dennis ThomasSell$99.7K
Sep 12, 2025 STEVEN-WAISS KELLEYSell$109.5K
Aug 13, 2025 Obregon-Jimenez RebecaSell$118.2K
Jul 2, 2025 SLESSOR MIKESell$136.1K
Jun 3, 2025 SLESSOR MIKESell$119.3K
May 30, 2025 St Dennis ThomasSell$93.7K
May 1, 2025 SLESSOR MIKESell$126.9K
Apr 1, 2025 SLESSOR MIKESell$113.0K
Mar 6, 2025 STEVEN-WAISS KELLEYSell$120.0K
Mar 4, 2025 SLESSOR MIKESell$132.2K
Feb 3, 2025 SLESSOR MIKESell$155.9K
Jan 2, 2025 SLESSOR MIKESell$177.8K
Dec 2, 2024 SLESSOR MIKESell$162.3K
Nov 6, 2024 St Dennis ThomasSell$121.2K
Nov 4, 2024 SLESSOR MIKESell$155.2K
Oct 2, 2024 SLESSOR MIKESell$181.1K
Sep 4, 2024 SLESSOR MIKESell$185.2K
Aug 7, 2024 Titinger JorgeSell$284.0K
Aug 5, 2024 SLESSOR MIKESell$203.7K
Jul 2, 2024 SLESSOR MIKESell$236.0K
Jun 4, 2024 SLESSOR MIKESell$217.5K
May 29, 2024 Obregon-Jimenez RebecaSell$278.3K
May 22, 2024 WHITE BRIAN CSell$187.5K
May 15, 2024 MAIER LOTHARSell$5.49M
May 13, 2024 St Dennis ThomasSell$112.6K
May 8, 2024 Rhodes SheriSell$746.1K
May 8, 2024 Shahar ShaiSell$656.8K
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FORM Insider Buying Activity

The following table shows recent insider purchases of FormFactor, Inc. (FORM) stock reported via SEC Form 4 filings.

No insider buying activity found for FORM in the last 12 months.

FORM Insider Selling Activity

The following table shows recent insider sales of FormFactor, Inc. (FORM) stock reported via SEC Form 4 filings.

DateInsiderTypeValue
Jun 11, 2026 SLESSOR MIKESell$1.44M
Jun 4, 2026 Rhodes SheriSell$793.5K
May 21, 2026 WHITE BRIAN CSell$409.5K
May 21, 2026 St Dennis ThomasSell$115.8K
May 15, 2026 STEVEN-WAISS KELLEYSell$678.2K
May 15, 2026 Titinger JorgeSell$516.3K
May 14, 2026 SLESSOR MIKESell$992.0K
Apr 15, 2026 SLESSOR MIKESell$1.44M
Mar 18, 2026 SLESSOR MIKESell$973.1K
Mar 6, 2026 McKinnis Aric BrendanSell$313.0K
Feb 25, 2026 WHITE BRIAN CSell$230.0K
Feb 18, 2026 SLESSOR MIKESell$815.6K
Feb 12, 2026 BREWER KEVIN JSell$288.6K
Feb 11, 2026 Rhodes SheriSell$707.0K
Feb 11, 2026 St Dennis ThomasSell$697.4K
Feb 11, 2026 STEVEN-WAISS KELLEYSell$206.1K
Feb 10, 2026 Titinger JorgeSell$177.7K
Feb 10, 2026 WHITE BRIAN CSell$500.2K
Jan 15, 2026 SLESSOR MIKESell$1.01M
Jan 6, 2026 SLESSOR MIKESell$2.57M
Dec 17, 2025 SLESSOR MIKESell$432.2K
Dec 2, 2025 STEVEN-WAISS KELLEYSell$151.1K
Nov 19, 2025 SLESSOR MIKESell$420.7K
Nov 17, 2025 St Dennis ThomasSell$99.7K
Sep 12, 2025 STEVEN-WAISS KELLEYSell$109.5K
Aug 13, 2025 Obregon-Jimenez RebecaSell$118.2K
Jul 2, 2025 SLESSOR MIKESell$136.1K
Jun 3, 2025 SLESSOR MIKESell$119.3K
May 30, 2025 St Dennis ThomasSell$93.7K
May 1, 2025 SLESSOR MIKESell$126.9K
Apr 1, 2025 SLESSOR MIKESell$113.0K
Mar 6, 2025 STEVEN-WAISS KELLEYSell$120.0K
Mar 4, 2025 SLESSOR MIKESell$132.2K
Feb 3, 2025 SLESSOR MIKESell$155.9K
Jan 2, 2025 SLESSOR MIKESell$177.8K
Dec 2, 2024 SLESSOR MIKESell$162.3K
Nov 6, 2024 St Dennis ThomasSell$121.2K
Nov 4, 2024 SLESSOR MIKESell$155.2K
Oct 2, 2024 SLESSOR MIKESell$181.1K
Sep 4, 2024 SLESSOR MIKESell$185.2K
Aug 7, 2024 Titinger JorgeSell$284.0K
Aug 5, 2024 SLESSOR MIKESell$203.7K
Jul 2, 2024 SLESSOR MIKESell$236.0K
Jun 4, 2024 SLESSOR MIKESell$217.5K
May 29, 2024 Obregon-Jimenez RebecaSell$278.3K
May 22, 2024 WHITE BRIAN CSell$187.5K
May 15, 2024 MAIER LOTHARSell$5.49M
May 13, 2024 St Dennis ThomasSell$112.6K
May 8, 2024 Rhodes SheriSell$746.1K
May 8, 2024 Shahar ShaiSell$656.8K

FORM Insiders

SLESSOR MIKE

director, officer: CEO

Sold $16.64M
30 tradesLast: Jun 11, 2026
Rhodes Sheri

Director

Sold $2.37M
4 tradesLast: Jun 4, 2026
WHITE BRIAN C

Director

Sold $1.33M
4 tradesLast: May 21, 2026
St Dennis Thomas

Director

Sold $2.06M
9 tradesLast: May 21, 2026
STEVEN-WAISS KELLEY

Director

Sold $1.91M
8 tradesLast: May 15, 2026
Titinger Jorge

Director

Sold $977.9K
3 tradesLast: May 15, 2026
McKinnis Aric Brendan

officer: CFO, SVP Global Finance

Sold $313.0K
1 tradesLast: Mar 6, 2026
BREWER KEVIN J

director

Sold $288.6K
1 tradesLast: Feb 12, 2026
Obregon-Jimenez Rebeca

Director

Sold $814.9K
4 tradesLast: Aug 13, 2025
MAIER LOTHAR

Director

Sold $5.49M
1 tradesLast: May 15, 2024
Shahar Shai

CFO, SVP Global Finance

Sold $3.36M
7 tradesLast: May 8, 2024
LINK RAYMOND A

Director

Sold $185.1K
2 tradesLast: May 17, 2022