Willett Robert (CIK 1438093) reported 13 SEC Form 4 insider transactions across 3 companies over the past 18 months (most recent 2026-05-22). Recent activity: Buy CLH (652 shares), Buy ALGM (1,094 shares), Buy CGNX (14,165 shares), Sell CGNX (6,849 shares), Buy CGNX (2,148 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-22 | CLEAN HARBORS INC (CLH) | Director | Buy | 652 | $0 |
| 2026-05-15 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | Director | Buy | 1,094 | $0 |
| 2026-02-19 | COGNEX CORP (CGNX) | Director | Buy | 14,165 | $0 |
| 2026-02-19 | COGNEX CORP (CGNX) | Director | Sell | 6,849 | $388,475 |
| 2026-02-17 | COGNEX CORP (CGNX) | Director | Buy | 2,148 | $84,717 |
| 2026-02-17 | COGNEX CORP (CGNX) | Director | Sell | 2,148 | $127,806 |
| 2026-02-13 | COGNEX CORP (CGNX) | Director | Buy | 173,296 | $6.7M |
| 2026-02-13 | COGNEX CORP (CGNX) | Director | Sell | 173,296 | $10.1M |
| 2026-02-13 | COGNEX CORP (CGNX) | Director | Buy | 3,756 | $148,137 |
| 2026-02-13 | COGNEX CORP (CGNX) | Director | Sell | 3,756 | $219,313 |
| 2025-10-22 | COGNEX CORP (CGNX) | Director | Buy | 6,704 | $257,367 |
| 2025-10-22 | COGNEX CORP (CGNX) | Director | Sell | 6,704 | $331,915 |
| 2025-05-23 | CLEAN HARBORS INC (CLH) | Director | Buy | 789 | $0 |
Source: SEC Form 4 filings · as of 2026-05-22