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CURTIS GEORGE L profile photo

George L. Curtis

CIK: 0001216581

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)1 (9.1%)

Compensation grants

Other (G, F, J, C, D, …)10 (90.9%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

CLEAN HARBORS INC logo
CLH

CLEAN HARBORS INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (11 total)

  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Jul 1, 2026
    Tax Payment(F)
    Direct
    1.8K shares at avg. $290.74$511K
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Mar 13, 2026
    Disposition(D)
    Direct
    1K shares-
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Mar 13, 2026
    Tax Payment(F)
    Direct
    350 shares at avg. $288.93$101K
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Feb 2, 2026
    Tax Payment(F)
    Direct
    249 shares at avg. $259.91$65K
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Dec 9, 2025
    Gift(G)
    Direct
    1K shares-
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Jul 1, 2025
    Tax Payment(F)
    Direct
    399 shares at avg. $229.55$92K
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Apr 1, 2025
    Award(A)
    Direct
    2K shares-
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Mar 17, 2025
    Tax Payment(F)
    Direct
    351 shares at avg. $192.90$68K
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Mar 17, 2025
    Disposition(D)
    Direct
    2.3K shares-
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Feb 1, 2025
    Tax Payment(F)
    Direct
    181 shares at avg. $233.00$42K
  • CLEAN HARBORS INC logo
    CLH

    CLEAN HARBORS INC

    Feb 1, 2025
    Tax Payment(F)
    Direct
    452 shares at avg. $233.00$105K

1-11 of 11

About CURTIS GEORGE L

CURTIS GEORGE L (SEC CIK 0001216581) files insider reports with the SEC as EXEC. VICE PRESIDENT (CHESI) of CLEAN HARBORS INC (CLH).

Signal8 holds 10 ownership filings by CURTIS GEORGE L, all Form 4s, filed between Feb 4, 2025 and Aug 11, 2026. Those filings report 11 transactions, from Feb 1, 2025 to Jul 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on CURTIS GEORGE L's filings is in NORWELL, MA.

Recent filings by CURTIS GEORGE L

  • Jul 1, 2026: Tax withholding of CLH shares (Form 4, code F).
  • Mar 13, 2026: Disposition to issuer transaction of CLH shares (Form 4, code D).
  • Mar 13, 2026: Tax withholding of CLH shares (Form 4, code F).
  • Feb 2, 2026: Tax withholding of CLH shares (Form 4, code F).
  • Dec 9, 2025: Gift of CLH shares (Form 4, code G).

Other insiders filing for CLEAN HARBORS INC (CLH)

How to read Form 4 transaction codes