InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (3 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
3
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Explore the complete record of transactions filed by Welch John R., Director. Insider active across 2 companies, notably CLEAN HARBORS INC. Cumulatively, 13 reports have been published. Split: 0 buy · 3 sells. Total volume traded: €1.1m. History available since 3 June 2021. The latest transaction was disclosed on 20 May 2026 (Attribution). Regulator: SEC (Form 4). The full history is free.
Declarations13 total
652 shares0Common StockSEC:0001611303-26-000003:0
789 shares0Common StockSEC:0001415889-25-014383:0
836 shares0Common StockSEC:0001415889-24-014188:0
1,400 shares0Common StockSEC:0001415889-24-005367:0
1,000 shares@ US$150.43100.0% of flowCommon StockSEC:0001415889-23-009164:0
1,148 shares0Common StockSEC:0001415889-23-008771:0
1,849 shares0Common StockSEC:0001179110-22-003155:0
257 shares0Common StockSEC:0001179110-22-000213
257 shares0Common StockSEC:0001179110-22-000213:0
5,500 shares@ US$99.050.0029% mcap50.0% of flowCommon StockSEC:0001179110-21-008014:0
5,500 shares@ US$99.0550.0% of flowCommon StockSEC:0001179110-21-008014
1,513 shares0Common StockSEC:0001179110-21-006461:0
1,513 shares0Common StockSEC:0001179110-21-006461
13 of 13 declarations
About Welch John R.
Welch John R. is a Board Member at CLEAN HARBORS INC. He plays a crucial role in overseeing the company's activities, contributing to the formulation of strategies to enhance sustainability and operational efficiency.
