Harrison Robert W. (CIK 1954916) reported 10 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-17). Recent activity: Sell CLH (18 shares), Sell CLH (368 shares), Sell CLH (184 shares), Buy CLH (1,003 shares), Buy CLH (430 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-17 | CLEAN HARBORS INC (CLH) | EVP, EHS | Sell | 18 | $5,201 |
| 2026-03-17 | CLEAN HARBORS INC (CLH) | EVP, EHS | Sell | 368 | $0 |
| 2026-02-03 | CLEAN HARBORS INC (CLH) | EVP, EHS | Sell | 184 | $47,823 |
| 2026-02-03 | CLEAN HARBORS INC (CLH) | EVP, EHS | Buy | 1,003 | $0 |
| 2026-02-03 | CLEAN HARBORS INC (CLH) | EVP, EHS | Buy | 430 | $0 |
| 2025-12-17 | CLEAN HARBORS INC (CLH) | EVP, EHS | Sell | 16 | $3,851 |
| 2025-12-03 | CLEAN HARBORS INC (CLH) | EVP, EHS | Sell | 122 | $27,882 |
| 2025-03-18 | CLEAN HARBORS INC (CLH) | EVP, EHS | Sell | 35 | $6,752 |
| 2025-02-04 | CLEAN HARBORS INC (CLH) | EVP, EHS | Buy | 443 | $0 |
| 2025-02-04 | CLEAN HARBORS INC (CLH) | EVP, EHS | Buy | 1,033 | $0 |
Source: SEC Form 4 filings · as of 2026-03-17