John R. Welch

Director

John R. Welch (Director) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in Clean Harbors, Inc. (CLH). The largest single filing was $205K of CLH (750 sh × $273.07, as filed), executed Feb 19.

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Return, ttmiAverage return per filing, trailing twelve months

–

no purchases on file

Delay-adjustediThe same average, entered at disclosure dates

–

returns measure stock purchases only

Filings, ttm

0 buys · 1 sells

Median delay

–

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$205K

shares × price, as filed

Last traded

Feb 19

Filed Feb 20

Median ADV $159.8M across their filed names

Open performance→

Volume by month

Buys $0 Sells $490K

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Industrials 1 filing

Sector per market data · by filing · past 12 months

Most traded names

CLH

Clean Harbors, Inc. CLH · 0 buys · 2 sells 2 filings

Recent filings

CLHSALE Clean Harbors, Inc. View filing → $205K
750 sh × $273.07
Exec Feb 19
Filed Feb 20 · 5:30 PM ET CLHSALE Clean Harbors, Inc. View filing → $286K
1,250 sh × $228.51
Exec May 28 2025
Filed May 29 2025 · 5:30 PM ET