Welch John R.
SEC CIK 1611303 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| CLH | CLEAN HARBORS INC | Dir | 10.9K | — | $1.19M | 12 | 2021-08-05 | 2026-05-20 |
Most active insiders at CLH, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | MCKIM ALAN S | CTO, EXEC COB, Dir | — | $57.38M |
| 2 | GERSTENBERG ERIC W | CO-CEO | — | $2.93M |
| 3 | Dugas Eric J. | EVP CFO | — | $1.57M |
| 4 | Weber Brian P | EVP (CHESI) | — | $1.37M |
| 5 | Gabriel Sharon M. | EVP, CIO (CHESI) | — | $998.5K |
| 6 | Robertson Andrea | Dir | — | $247.8K |
| 7 | Reed Marcy L. | Dir | — | $240.7K |
| 8 | States Lauren | Dir | — | $225.8K |
| 9 | Welch John R. | Dir | — | $204.8K |
| 10 | Polito Karyn | Dir | $135.8K | — |
Transactions 12
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-22 11:50 | 2026-05-20 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | A - Grant | $0.00 | +652 | 10.9K | +6% | $0 | |
| 2026-02-20 | 2026-02-19 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | S - Sale | $273.07 | -750 | 10.2K | -7% | -$204.8K | |
| 2025-12-29 | 2025-12-17 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | G - Gift | $0.00 | -415 | 11.0K | -4% | $0 | |
| 2025-05-29 | 2025-05-28 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | S - Sale | $228.51 | -1,250 | 11.4K | -10% | -$285.6K | |
| 2025-05-23 | 2025-05-21 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | A - Grant | $0.00 | +789 | 12.7K | +7% | $0 | |
| 2024-05-23 | 2024-05-22 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | A - Grant | $0.00 | +836 | 11.9K | +8% | $0 | |
| 2024-02-27 | 2024-02-26 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | G - Gift | $0.00 | -1,400 | 11.0K | -11% | $0 | |
| 2023-06-05 | 2023-06-02 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | S - Sale | $150.43 | -1,000 | 12.4K | -7% | -$150.4K | |
| 2023-05-25 | 2023-05-24 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | A - Grant | $0.00 | +1,148 | 13.4K | +9% | $0 | |
| 2022-05-26 | 2022-05-25 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | A - Grant | $0.00 | +1,849 | 12.3K | +18% | $0 | |
| 2022-01-05 | 2022-01-03 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | A - Grant | $0.00 | +257 | 10.4K | +3% | $0 | |
| 2021-08-09 | 2021-08-05 | CLH | CLEAN HARBORS INC | Welch John R. | Dir | S - Sale | $99.05 | -5,500 | 10.2K | -35% | -$544.8K |
Purchase Sale Sale after option exercise All abbreviations