Welch John R. is a corporate insider who has filed 1 SEC Form 4 transaction in the past 12 months across 0 companies. No open-market purchases were recorded; all transactions were sales or other dispositions. Insider activity is one signal among many — past performance does not guarantee future results.

Welch John R.

Director

Latest Insider Transactions

4 transactions (past 365 days)

CLH
Director
Sale
$204.8K
750 shares @ $273.07
Filed 2026-02-20Trade 2026-02-19
Clean Harbors Inc
CLH
Director
Gift
$0
415 shares @ $0.00
Filed 2025-12-29Trade 2025-12-17
Clean Harbors Inc
CLH
Director
Sale
-$285.6K
1,250 shares @ $228.51
Filed 2025-05-29Trade 2025-05-28
Clean Harbors Inc
CLH
Director
Award
$0
789 shares @ $0.00
Filed 2025-05-23Trade 2025-05-21
Clean Harbors Inc