Form 4 for FORM FORMFACTOR INC
Accepted 2026-06-11 19:05:54 ET · period of report 2026-06-10 · accession 0001628280-26-042611 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MT | 2026-06-11 19:05 | 2026-06-10 | FORM | SLESSOR MIKE | CEO, Dir | S - Sale | $121.35 | -11.9K | 435.1K | -3% | -$1.44M |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-10 | S | D | 1,399 | $117.70 | 445,638 | D | — | — | (F1) The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025. (F2) Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $117.14 through $117.87. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. |
| 2 | Common | Common Stock | 2026-06-10 | S | D | 767 | $119.00 | 444,871 | D | — | — | (F1) The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025. |
| 3 | Common | Common Stock | 2026-06-10 | S | D | 400 | $119.46 | 444,471 | D | — | — | (F1) The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025. |
| 4 | Common | Common Stock | 2026-06-10 | S | D | 975 | $121.00 | 443,496 | D | — | — | (F1) The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025. |
| 5 | Common | Common Stock | 2026-06-10 | S | D | 4,220 | $121.72 | 439,276 | D | — | — | (F1) The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025. (F3) Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $121.22 through $122.04. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. |
| 6 | Common | Common Stock | 2026-06-10 | S | D | 2,500 | $122.63 | 436,776 | D | — | — | (F1) The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025. (F4) Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $122.25 through $123. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. |
| 7 | Common | Common Stock | 2026-06-10 | S | D | 1,629 | $123.37 | 435,147 | D | — | — | (F1) The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025. (F5) Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $123.365 through $123.39. Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. |