Insider · CIK 0001435737
Sean D Keohane
Files at: CBT, CC. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 28, 2026 SForm 4 → | Aug 31, 7:00 pm EDT | CABOT CORPCBT | 134,895 | $85.00 | $11,466,075 | 404,134 | −25.0% | |
| Aug 28, 2026 MForm 4 → | Aug 31, 7:00 pm EDT | CABOT CORPCBT | 134,895 | $50.00 | $6,744,750 | 539,029 | — | |
| Aug 24, 2026 SForm 4 → | Aug 26, 2:42 pm EDT | CABOT CORPCBT | 2,779 | $85.50 | $237,605 | 288,873 | −0.95% | |
| Aug 24, 2026 MForm 4 → | Aug 26, 2:42 pm EDT | CABOT CORPCBT | 2,779 | $50.00 | $138,950 | 291,652 | — | |
| Aug 7, 2026 SForm 4 → | Aug 11, 6:00 pm EDT | CABOT CORPCBT | 91,923 | $86.41 | $7,942,634 | 404,134 | −18.5% | |
| Aug 7, 2026 MForm 4 → | Aug 11, 6:00 pm EDT | CABOT CORPCBT | 91,923 | $62.24 | $5,721,288 | 496,057 | — |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 11, 2026 AForm 4 → | Sep 14, 5:00 pm EDT | CABOT CORPCBT | 284 | $79.68 | $22,600 | 48,115 | — | |
| Aug 28, 2026 MForm 4 → | Aug 31, 7:00 pm EDT | CABOT CORPCBT | 134,895 | — | — | 0 | — | |
| Aug 24, 2026 MForm 4 → | Aug 26, 2:42 pm EDT | CABOT CORPCBT | 2,779 | — | — | 134,895 | — | |
| Aug 7, 2026 MForm 4 → | Aug 11, 6:00 pm EDT | CABOT CORPCBT | 91,923 | — | — | 0 | — | |
| Jun 30, 2026 AForm 4 → | Jul 2, 8:56 am EDT | CABOT CORPCBT | 84 | $90.82 | $7,600 | 47,831 | — |