Formfactor Inc. (FORM) Insider Trading
Directors, officers and holders of more than 10% of FORM report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 250 transactions on file: 0 with code P, 27 with code S and 23 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 14, 2026 | SLESSOR MIKE | CEO | S Sale | 1,200 | $125.92 | $151,104 |
| Oct 14, 2026 | SLESSOR MIKE | CEO | S Sale | 2,195 | $124.23 | $272,685 |
| Oct 14, 2026 | SLESSOR MIKE | CEO | S Sale | 7,703 | $125.36 | $965,648 |
| Sep 16, 2026 | SLESSOR MIKE | CEO | S Sale | 8,737 | $104.26 | $910,920 |
| Sep 16, 2026 | SLESSOR MIKE | CEO | S Sale | 1,000 | $105.80 | $105,800 |
| Sep 16, 2026 | SLESSOR MIKE | CEO | S Sale | 7,773 | $105.12 | $817,098 |
| Sep 3, 2026 | STEVEN-WAISS KELLEY | Director | S Sale | 2,100 | $96.10 | $201,810 |
| Aug 14, 2026 | SLESSOR MIKE | CEO | S Sale | 1,125 | $131.65 | $148,106 |
| Aug 14, 2026 | SLESSOR MIKE | CEO | S Sale | 686 | $133.33 | $91,464 |
| Aug 14, 2026 | SLESSOR MIKE | CEO | S Sale | 5,535 | $132.50 | $733,388 |
| Aug 14, 2026 | SLESSOR MIKE | CEO | S Sale | 3,282 | $130.54 | $428,432 |
| Aug 14, 2026 | SLESSOR MIKE | CEO | S Sale | 2,892 | $129.55 | $374,659 |
| Aug 14, 2026 | SLESSOR MIKE | CEO | S Sale | 2,482 | $128.72 | $319,483 |
| Aug 7, 2026 | SLESSOR MIKE | CEO | F Tax Payment | 78,908 | $117.39 | $9,263,010 |
| Aug 7, 2026 | SLESSOR MIKE | CEO | M Exercise | 141,792 | Not measured | Not measured |
| Aug 7, 2026 | SLESSOR MIKE | CEO | M Exercise | 141,792 | Not measured | Not measured |
| Aug 7, 2026 | SLESSOR MIKE | CEO | M Exercise | 5,908 | Not measured | Not measured |
| Aug 7, 2026 | SLESSOR MIKE | CEO | A Award | 141,792 | Not measured | Not measured |
| Aug 7, 2026 | SLESSOR MIKE | CEO | F Tax Payment | 3,288 | $117.39 | $385,978 |
| Aug 7, 2026 | SLESSOR MIKE | CEO | M Exercise | 5,908 | Not measured | Not measured |
| Aug 6, 2026 | SLESSOR MIKE | CEO | M Exercise | 6,031 | Not measured | Not measured |
| Aug 6, 2026 | McKinnis Aric Brendan | CFO, SVP Global Finance | A Award | 6,924 | Not measured | Not measured |
| Aug 6, 2026 | SLESSOR MIKE | CEO | A Award | 27,696 | Not measured | Not measured |
| Aug 6, 2026 | SLESSOR MIKE | CEO | F Tax Payment | 3,357 | $115.21 | $386,760 |
| Aug 6, 2026 | McKinnis Aric Brendan | CFO, SVP Global Finance | F Tax Payment | 274 | $115.21 | $31,568 |
| Aug 6, 2026 | McKinnis Aric Brendan | CFO, SVP Global Finance | M Exercise | 1,099 | Not measured | Not measured |
| Aug 6, 2026 | SLESSOR MIKE | CEO | M Exercise | 6,031 | Not measured | Not measured |
| Aug 6, 2026 | McKinnis Aric Brendan | CFO, SVP Global Finance | M Exercise | 1,099 | Not measured | Not measured |
| Aug 5, 2026 | SLESSOR MIKE | CEO | M Exercise | 3,644 | Not measured | Not measured |
| Aug 5, 2026 | SLESSOR MIKE | CEO | F Tax Payment | 2,028 | $114.44 | $232,084 |
| Aug 5, 2026 | SLESSOR MIKE | CEO | M Exercise | 3,644 | Not measured | Not measured |
| Aug 5, 2026 | McKinnis Aric Brendan | CFO, SVP Global Finance | M Exercise | 521 | Not measured | Not measured |
| Aug 5, 2026 | McKinnis Aric Brendan | CFO, SVP Global Finance | F Tax Payment | 130 | $114.44 | $14,877 |
| Aug 5, 2026 | McKinnis Aric Brendan | CFO, SVP Global Finance | M Exercise | 521 | Not measured | Not measured |
| Jul 15, 2026 | SLESSOR MIKE | CEO | S Sale | 1,041 | $116.56 | $121,339 |
| Jul 15, 2026 | SLESSOR MIKE | CEO | S Sale | 1,650 | $117.39 | $193,694 |
| Jul 15, 2026 | SLESSOR MIKE | CEO | S Sale | 706 | $118.21 | $83,456 |
| Jul 15, 2026 | SLESSOR MIKE | CEO | S Sale | 170 | $119.08 | $20,244 |
| Jul 15, 2026 | SLESSOR MIKE | CEO | S Sale | 300 | $120.58 | $36,174 |
| Jul 15, 2026 | SLESSOR MIKE | CEO | S Sale | 868 | $121.30 | $105,288 |
| Jun 16, 2026 | St Dennis Thomas | Director | G Gift | 740 | Not measured | Not measured |
| Jun 15, 2026 | St Dennis Thomas | Director | S Sale | 2,800 | $151.49 | $424,172 |
| Jun 10, 2026 | SLESSOR MIKE | CEO | S Sale | 4,220 | $121.72 | $513,658 |
| Jun 10, 2026 | SLESSOR MIKE | CEO | S Sale | 975 | $121.00 | $117,975 |
| Jun 10, 2026 | SLESSOR MIKE | CEO | S Sale | 1,399 | $117.70 | $164,662 |
| Jun 10, 2026 | SLESSOR MIKE | CEO | S Sale | 767 | $119.00 | $91,273 |
| Jun 10, 2026 | SLESSOR MIKE | CEO | S Sale | 400 | $119.46 | $47,784 |
| Jun 10, 2026 | SLESSOR MIKE | CEO | S Sale | 2,500 | $122.63 | $306,575 |
| Jun 10, 2026 | SLESSOR MIKE | CEO | S Sale | 1,629 | $123.37 | $200,970 |
| Jun 2, 2026 | McKinnis Aric Brendan | CFO, SVP Global Finance | M Exercise | 773 | Not measured | Not measured |
The full Form 4 history is on the FORM company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.