FORMFACTOR INC (FORM) has 224 open-market insider trades by 23 insiders since 2006. Over the last six months insiders net sold $3.6M. The most active filer is Dennis Thomas St, Director.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Dennis Thomas St | Dir | — | 48 | $28.7M | 2026-06-16 |
| Mike Slessor | CEO | — | 33 | $20.4M | 2026-10-14 |
| Lothar Maier | Dir | — | 1 | $11.0M | 2024-05-14 |
| Shai Shahar | CFOVP | — | 8 | $6.5M | 2025-08-07 |
| Richard DeLateur | Dir | — | 12 | $3.7M | 2019-07-25 |
| Michael M. Ludwig | CFOVP | — | 21 | $3.3M | 2018-02-22 |
| Sheri Rhodes | Dir | — | 5 | $3.2M | 2026-06-02 |
| Kelley Steven-waiss | Dir | — | 15 | $3.0M | 2026-09-03 |
| Edward Rogas Jr. | Dir | — | 4 | $3.0M | 2021-05-17 |
| Rebeca Obregon-Jimenez | Dir | — | 7 | $2.6M | 2026-05-21 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Mike Slessor | CEO | Sell | $1.4M | 2026-10-14 |
| Mike Slessor | CEO | Sell | $1.8M | 2026-09-16 |
| Kelley Steven-waiss | Director | Sell | $202K | 2026-09-03 |
| Mike Slessor | CEO | Sell | $2.1M | 2026-08-14 |
| Mike Slessor | CEO | Sell | $560K | 2026-07-15 |
| Dennis Thomas St | Director | Sell | $424K | 2026-06-15 |
Companies that share insiders with FORM, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Mike Slessor | CEO | Sell | $1.4M | 2026-06-10 |
| Sheri Rhodes | Director | Sell | $794K | 2026-06-02 |
| Rebeca Obregon-Jimenez | Director | Sell | $484K | 2026-05-21 |
| Brian C. White | Director | Sell | $410K | 2026-05-20 |
| Dennis Thomas St | Director | Sell | $116K | 2026-05-19 |
| Kelley Steven-waiss | Director | Sell | $678K | 2026-05-15 |
| Mike Slessor | CEO | Sell | $1.2M | 2026-05-13 |
| Jorge Titinger | Director | Sell | $516K | 2026-05-13 |
| Mike Slessor | CEO | Sell | $1.4M | 2026-04-15 |