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Insider · CIK 0001756568

Sharon M. Gabriel

officer

Files at CLH (CLEAN HARBORS INC). First filing Feb 20, 2026, latest Feb 20, 2026.

Sharon M. Gabriel files SEC Form 4 as officer at CLH (CLEAN HARBORS INC). Since Feb 20, 2026, Sharon M. Gabriel has reported 0 open-market buys worth $0 and 1 open-market sell worth $999k, the latest filed on Feb 20, 2026.

A track record needs three past buys with six months of prices behind them; Sharon M. Gabriel has 0, so none is measured yet.

The newest scored trade: sold $999k of CLH on Feb 20, 2026, filed Feb 20, 2026, scored 60 (notable). In the last 12 months: 0 buys worth $0 and 1 sell worth $999k.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $999k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

CLH: CLEAN HARBORS INC

CLHOct 9, 2026 · close 316.93

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
60Notable
CLHsell 5
CLEAN HARBORS INC
$999k
3,540 shares
-13%+56% from low0% from high

Transactions

Every row this insider has filed, 15 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Mar 13, 2026CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-727$288.93$210k22,466Mar 17, 2026
Mar 13, 2026CLH
CLEAN HARBORS INC
DDisposition to issuer
Common Stock
-1,401$0.00$021,065Mar 17, 2026
Feb 20, 2026CLH
CLEAN HARBORS INC
SOpen-market sale
Common Stock
-3,540$282.07$999k23,193Feb 20, 2026
Feb 2, 2026CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-508$259.91$132k26,733Feb 3, 2026
Feb 1, 2026CLH
CLEAN HARBORS INC
AGrant or award
Common Stock
+2,073$0.00$028,806Feb 3, 2026
Feb 1, 2026CLH
CLEAN HARBORS INC
AGrant or award
Common Stock
+566$0.00$029,372Feb 3, 2026
Jan 2, 2026CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-525$234.48$123k27,241Jan 5, 2026
Jul 1, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-525$229.55$121k27,766Jul 3, 2025
Mar 17, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-667$192.90$129k31,087Apr 2, 2025
Mar 17, 2025CLH
CLEAN HARBORS INC
DDisposition to issuer
Common Stock
-2,796$0.00$028,291Apr 2, 2025
Mar 17, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-667$192.90$129k31,087Mar 18, 2025
Feb 1, 2025CLH
CLEAN HARBORS INC
AGrant or award
Common Stock
+583$0.00$029,958Feb 5, 2025
Feb 1, 2025CLH
CLEAN HARBORS INC
AGrant or award
Common Stock
+2,135$0.00$032,093Feb 5, 2025
Feb 1, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-777$233.00$181k31,316Feb 5, 2025
Jan 1, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-484$230.14$111k29,375Jan 3, 2025

Questions about Sharon M. Gabriel

Answered from the filings on this page, as of the latest one.

Is Sharon M. Gabriel buying or selling?

In the last 12 months Sharon M. Gabriel reported 0 open-market buys worth $0 and 1 open-market sell worth $999k on SEC Form 4; the latest was sold $999k of CLH on Feb 20, 2026. Grants, option exercises and tax withholding are not counted.

How did Sharon M. Gabriel's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Sharon M. Gabriel has 0.

Where does Sharon M. Gabriel file Form 4?

Sharon M. Gabriel has filed Form 4 at CLH (CLEAN HARBORS INC) as EVP/CIO (CHESI). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Sharon M. Gabriel: insider trades and track record | InsiderTell