FORM
insider transactionsFORMFACTOR INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 30d
-21.0K
0 buy · 21.0K sell
Net value · 30d
-$2.7M
$0 in · $2.7M out
Sentiment · 30d
Net selling
0% buying · 100% selling
Open-market trades · 30d
9
0 buy · 21.0K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Other·G
Director
$0
740 sh
Own -3%
-
Sell·S
Director
$424.2K
2.8K sh · $151.49
Own -9%
-
Sell·S
Mike Slessor KEY
CEO · 10b5-1
$201.0K
1.6K sh · $123.37
Own -0%
-
Sell·S
Mike Slessor KEY
CEO · 10b5-1
$306.6K
2.5K sh · $122.63
Own -1%
-
Sell·S
Mike Slessor KEY
CEO · 10b5-1
$513.7K
4.2K sh · $121.72
Own -1%
-
Sell·S
Mike Slessor KEY
CEO · 10b5-1
$118.0K
975 sh · $121.00
Own -0%
-
Sell·S
Mike Slessor KEY
CEO · 10b5-1
$47.8K
400 sh · $119.46
Own -0%
-
Sell·S
Mike Slessor KEY
CEO · 10b5-1
$91.3K
767 sh · $119.00
Own -0%
-
Sell·S
Mike Slessor KEY
CEO · 10b5-1
$164.7K
1.4K sh · $117.70
Own -0%
-
Exercise·M
CFO, SVP Global Finance
$0
773 sh
Own New
-
Other·F
CFO, SVP Global Finance
$24.1K
193 sh · $125.11
Own -1%
-
Exercise·M
CFO, SVP Global Finance
$0
773 sh
Own +6%
-
Sell·S
Director
$793.5K
6.3K sh · $125.40
Own -54%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 16, 2026 | Thomas St Dennis | Other G | 740 | $0 |
| Jun 15, 2026 | Thomas St Dennis | Sell S | 2.8K | $424.2K |
| Jun 10, 2026 | Mike Slessor KEY 10b5-1 | Sell S | 1.6K | $201.0K |
| Jun 10, 2026 | Mike Slessor KEY 10b5-1 | Sell S | 2.5K | $306.6K |
| Jun 10, 2026 | Mike Slessor KEY 10b5-1 | Sell S | 4.2K | $513.7K |
| Jun 10, 2026 | Mike Slessor KEY 10b5-1 | Sell S | 975 | $118.0K |
| Jun 10, 2026 | Mike Slessor KEY 10b5-1 | Sell S | 400 | $47.8K |
| Jun 10, 2026 | Mike Slessor KEY 10b5-1 | Sell S | 767 | $91.3K |
| Jun 10, 2026 | Mike Slessor KEY 10b5-1 | Sell S | 1.4K | $164.7K |
| Jun 2, 2026 | Aric Brendan Mckinnis KEY | Exercise M | 773 | $0 |
| Jun 2, 2026 | Aric Brendan Mckinnis KEY | Other F | 193 | $24.1K |
| Jun 2, 2026 | Aric Brendan Mckinnis KEY | Exercise M | 773 | $0 |
| Jun 2, 2026 | Sheri Rhodes | Sell S | 6.3K | $793.5K |
About FORM insider trading
This page tracks insider transactions for FORMFACTOR INC (FORM) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.