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/ Insider / 1611303
Welch John R.
CIK 1611303
Transactions on file
3
Tickers traded
CLH
3 txns
Recent activity
Filed
Txn date
Issuer
Roles
Code
Shares
Value
% since Filing
Filing
2026-05-22
2026-05-20
CLH
CLEAN HARBORS INC
Grant
652
$0.00
—
open →
2025-05-23
2025-05-21
CLH
CLEAN HARBORS INC
Director
Grant
789
$0.00
—
open →
2025-05-29
2025-05-28
CLH
CLEAN HARBORS INC
Director
Sale
1,250
$285.6K
+26.0%
open →