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Insider · CIK 0001216581

George L Curtis

officer

Files at CLH (CLEAN HARBORS INC). First filing -, latest -.

In brief

George L Curtis files SEC Form 4 as officer at CLH (CLEAN HARBORS INC). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.

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

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 / 0
$0 bought, $0 sold

Signals

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

No scored open-market trades yet.

Transactions

Every row this insider has filed, 12 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jul 1, 2026CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-1,757$290.74$511k44,291Aug 11, 2026
Mar 13, 2026CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-350$288.93$101k47,065Mar 17, 2026
Mar 13, 2026CLH
CLEAN HARBORS INC
DDisposition to issuer
Common Stock
-1,028$0.00$046,048Mar 17, 2026
Feb 2, 2026CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-249$259.91$65k47,415Feb 3, 2026
Dec 9, 2025CLH
CLEAN HARBORS INC
GGift
Common Stock
-1,000$0.00$047,664Dec 11, 2025
Jul 1, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-399$229.55$92k48,664Jul 3, 2025
Apr 1, 2025CLH
CLEAN HARBORS INC
AGrant or award
Common Stock
+2,000$0.00$049,052Apr 3, 2025
Mar 17, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-351$192.90$68k49,304Apr 2, 2025
Mar 17, 2025CLH
CLEAN HARBORS INC
DDisposition to issuer
Common Stock
-2,252$0.00$047,052Apr 2, 2025
Mar 17, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-351$192.90$68k49,304Mar 18, 2025
Feb 1, 2025CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-452$233.00$105k49,384Feb 4, 2025
Dec 15, 2023CLH
CLEAN HARBORS INC
FTax withholding
Common Stock
-66$174.75$12k48,036Dec 19, 2023

Questions about George L Curtis

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

Is George L Curtis buying or selling?

George L Curtis has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.

How did George L Curtis's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and George L Curtis has 0.

Where does George L Curtis file Form 4?

George L Curtis has filed Form 4 at CLH (CLEAN HARBORS INC) as EXEC. VICE PRESIDENT (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.

George L Curtis: insider trades and track record | InsiderTell