Form 4 for CBT CABOT CORP
Accepted 2026-08-31 19:00:03 ET · period of report 2026-08-28 · accession 0001193125-26-377202 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-08-31 19:00 | 2026-08-28 | CBT | Keohane Sean D | Pres, CEO, Dir | M - OptEx | $50.00 | +134.9K | 539.0K | +33% | +$6.74M |
| D | 2026-08-31 19:00 | 2026-08-28 | CBT | Keohane Sean D | Pres, CEO, Dir | S - Sale+OE | $85.00 | -134.9K | 404.1K | -25% | -$11.47M |
| D | 2026-08-31 19:00 | 2026-08-28 | CBT | Keohane Sean D | Pres, CEO, Dir | M - OptEx | $0.00 | -134.9K | 0 | -100% | $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 | 2026-08-28 | M | A | 134,895 | $50.00 | 539,029 | D | — | — | |
| 2 | Common | Common Stock | 2026-08-28 | S | D | 134,895 | $85.00 | 404,134 | D | — | — | |
| 3 | Derivative | Employee Stock Option (Right to Buy) | 2026-08-28 | M | D | 134,895 | $0.00 | 0 | D | $50.00 · — to 2028-11-08 | 134,895 Common Stock | (F1) 137,674 shares were subject to the option. The option vested over a three year period as follows: 30% on November 9, 2019, 30% on November 9, 2020, and 40% on November 9, 2021. |