InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (4 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
4
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Browse the full record of transactions filed by PRESTON JOHN T, Director. Insider active across 2 companies, notably CLEAN HARBORS INC. Cumulatively, 13 disclosures have been published. Split: 0 buy · 4 sells. Total volume traded: €1.4m. Activity tracked since 3 June 2021. The latest transaction was filed on 20 May 2026 (Attribution). Regulator: SEC (Form 4). The full history is free.
Declarations13 total
652 shares0Common StockSEC:0000938731-26-000001:0
789 shares0Common StockSEC:0001415889-25-014375:0
836 shares0Common StockSEC:0001415889-24-014194:0
1,913 shares@ US$188.3623.9% of flowCommon StockSEC:0001415889-24-008080:0
2,095 shares@ US$173.6824.3% of flowCommon StockSEC:0001415889-23-012345:0
1,148 shares0Common StockSEC:0001415889-23-008767:0
3,750 shares@ US$134.9034.5% of flowCommon StockSEC:0001415889-23-003935:0
2,168 shares@ US$111.502917.2% of flowCommon StockSEC:0001415889-22-008397:0
1,849 shares0Common StockSEC:0001179110-22-003160:0
257 shares0Common StockSEC:0001179110-22-000204
257 shares0Common StockSEC:0001179110-22-000204:0
1,513 shares0Common StockSEC:0001179110-21-006462:0
1,513 shares0Common StockSEC:0001179110-21-006462
13 of 13 declarations
About PRESTON JOHN T
John T. Preston serves as a board member at CLEAN HARBORS INC. He plays a vital role in overseeing operations and making strategic decisions for the company. His expertise in management and environmental issues is crucial for ensuring Clean Harbors' sustainability.
