Form 4 for FORM FORMFACTOR INC
Accepted 2026-04-15 16:35:10 ET · period of report 2026-04-15 · accession 0001628280-26-025268 · 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 | 2026-04-15 16:35 | 2026-04-15 | FORM | SLESSOR MIKE | CEO, Dir | S - Sale | $127.72 | -11.3K | 449.6K | -2% | -$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 | 2026-04-15 | S | D | 1,826 | $125.24 | 459,033 | 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 $125.01 through $125.735. 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 | 2026-04-15 | S | D | 900 | $126.58 | 458,133 | 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 $126.28 through $126.90. 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. |
| 3 | Common | Common Stock | 2026-04-15 | S | D | 2,369 | $127.65 | 455,764 | 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 $127.25 through $127.945. 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. |
| 4 | Common | Common Stock | 2026-04-15 | S | D | 5,432 | $128.56 | 450,332 | 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 $128.05 through $128.87. 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. |
| 5 | Common | Common Stock | 2026-04-15 | S | D | 767 | $129.22 | 449,565 | D | — | — | (F1) The reported sale of shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted on August 19, 2025. (F6) Price represents the weighted average sale price for the transaction reported. Price range of shares sold is $129.00 through $129.62. 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. |