Keohane Sean D (CIK 1435737) reported 18 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-08-31). Recent activity: Buy CBT (134,895 shares), Sell CBT (134,895 shares), Buy CBT (2,779 shares), Sell CBT (2,779 shares), Buy CBT (91,923 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-31 | CABOT CORP (CBT) | President and CEO | Buy | 134,895 | $6.7M |
| 2026-08-31 | CABOT CORP (CBT) | President and CEO | Sell | 134,895 | $11.5M |
| 2026-08-26 | CABOT CORP (CBT) | President and CEO | Buy | 2,779 | $138,950 |
| 2026-08-26 | CABOT CORP (CBT) | President and CEO | Sell | 2,779 | $237,604 |
| 2026-08-11 | CABOT CORP (CBT) | President and CEO | Buy | 91,923 | $5.7M |
| 2026-08-11 | CABOT CORP (CBT) | President and CEO | Sell | 91,923 | $7.9M |
| 2026-05-08 | Chemours Co (CC) | Director | Buy | 7,182 | $0 |
| 2025-11-21 | CABOT CORP (CBT) | President and CEO | Buy | 32,630 | $0 |
| 2025-11-21 | CABOT CORP (CBT) | President and CEO | Buy | 30,932 | $0 |
| 2025-11-21 | CABOT CORP (CBT) | President and CEO | Sell | 10,338 | $617,799 |
| 2025-11-12 | CABOT CORP (CBT) | President and CEO | Sell | 10,608 | $651,437 |
| 2025-08-15 | CABOT CORP (CBT) | President and CEO | Buy | 87,981 | $4.4M |
| 2025-08-15 | CABOT CORP (CBT) | President and CEO | Sell | 80,304 | $6.4M |
| 2025-08-15 | CABOT CORP (CBT) | President and CEO | Sell | 7,677 | $611,243 |
| 2025-08-15 | CABOT CORP (CBT) | President and CEO | Buy | 26,455 | $1.3M |
| 2025-08-15 | CABOT CORP (CBT) | President and CEO | Sell | 24,086 | $1.9M |
| 2025-08-15 | CABOT CORP (CBT) | President and CEO | Sell | 2,369 | $188,643 |
| 2025-04-24 | Chemours Co (CC) | Director | Buy | 14,096 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-08-31