Form 4 for FORM FORMFACTOR INC
Accepted 2026-08-07 17:56:24 ET · period of report 2026-08-05 · accession 0001628280-26-054951 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-08-07 17:56 | 2026-08-05+ | FORM | SLESSOR MIKE | CEO, Dir | M - OptEx | $0.00 | +9,675 | 438.1K | +2% | $0 |
| DM | 2026-08-07 17:56 | 2026-08-05+ | FORM | SLESSOR MIKE | CEO, Dir | F - Tax | $114.92 | -5,385 | 434.7K | -1% | -$618.8K |
| DM | 2026-08-07 17:56 | 2026-08-05+ | FORM | SLESSOR MIKE | CEO, Dir | M - OptEx | $0.00 | -9,675 | 48.2K | -17% | $0 |
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 | 2026-08-05 | M | A | 3,644 | $0.00 | 434,056 | D | — | — | (F1) These shares of common stock reflect the settlement of restricted stock units of the Issuer. Each Restricted Stock Unit (RSU) is convertible into a share of common stock on a 1-for-1 basis. |
| 2 | Common | Common Stock | 2026-08-05 | F | D | 2,028 | $114.44 | 432,028 | D | — | — | (F2) Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations. |
| 3 | Common | Common Stock | 2026-08-06 | M | A | 6,031 | $0.00 | 438,059 | D | — | — | (F1) These shares of common stock reflect the settlement of restricted stock units of the Issuer. Each Restricted Stock Unit (RSU) is convertible into a share of common stock on a 1-for-1 basis. |
| 4 | Common | Common Stock | 2026-08-06 | F | D | 3,357 | $115.21 | 434,702 | D | — | — | (F2) Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations. |
| 5 | Derivative | Restricted Stock Units | 2026-08-05 | M | D | 3,644 | $0.00 | 14,576 | D | $0.00 · — to — | 3,644 Common Stock | (F3) The Restricted Stock Units granted on August 5, 2024 vest in twelve (12) quarterly installments beginning on November 5, 2024 and ending on August 5, 2027 and will be settled into shares of common stock on or following the vesting dates. (F4) If the reporting person's employment is terminated for any reason before an applicable Vesting Date, all restricted stock units that have not yet vested shall be forfeited without consideration, except as provided in the change of control severance agreement and any other agreements regarding equity vesting and exercisability between the reporting person and Issuer, which agreements or form agreements are filed with the SEC. |
| 6 | Derivative | Restricted Stock Units | 2026-08-06 | M | D | 6,031 | $0.00 | 48,248 | D | $0.00 · — to — | 6,031 Common Stock | (F5) The Restricted Stock Units granted on August 6, 2025 vest in twelve (12) quarterly installments beginning on November 6, 2025 and ending on August 6, 2028 and will be settled into shares of common stock on or following the vesting dates. (F4) If the reporting person's employment is terminated for any reason before an applicable Vesting Date, all restricted stock units that have not yet vested shall be forfeited without consideration, except as provided in the change of control severance agreement and any other agreements regarding equity vesting and exercisability between the reporting person and Issuer, which agreements or form agreements are filed with the SEC. |