SEC Form 4 · accession 0001628280-26-054948
FORMFACTOR INC · FORM
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Aric Brendan McKinnis
Officer — CFO, SVP Global Finance
Period of report
Aug 5, 2026
Accepted (ET)
Aug 7, 2026 · 5:49 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001039399
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Aug 5, 2026 | M | 521 | $0.00 | A | 13,457 | D | |
| Common StockF2 | Aug 5, 2026 | F | 130 | $114.44 | D | 13,327 | D | |
| Common StockF1 | Aug 6, 2026 | M | 1,099 | $0.00 | A | 14,426 | D | |
| Common StockF2 | Aug 6, 2026 | F | 274 | $115.21 | D | 14,152 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF3,F4 | $0.00 | Aug 5, 2026 | M | 521 | D | — | — | Common Stock | 521 | 2,084 | D |
| Restricted Stock UnitsF5,F4 | $0.00 | Aug 6, 2026 | M | 1,099 | D | — | — | Common Stock | 1,099 | 9,891 | D |
Explanation of responses
- F1These 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.
- F2Represents the number of shares withheld upon vesting of restricted stock units to cover tax withholding obligations.
- F3The 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.
- F4If 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.
- F5The Restricted Stock Units granted on November 6, 2025 vest in twelve (12) quarterly installments beginning on February 6, 2026 and ending on November 6, 2028 and will be settled into shares of common stock on or following the vesting dates.