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, 11 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.
Companies and markets linked to Preston John T
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations11 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:0001179110-22-000204:0
1,513 shares0Common StockSEC:0001179110-21-006462:0
11 of 11 declarations
About Preston John T
PRESTON JOHN T is Administrateur and an insider linked to Clean Harbors INC, where he is listed as Director. The record shows 11 filings, and, across the sampled filings from 2021-06-07 to 2026-05-22, there were no buys and 1374709 EUR of sales, with the modal transaction nature shown as Attribution.
