George L. Curtis

Companies

• Clean HarborsVice President May 11, 2006 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Clean Harbors CLH44,291 shares²$14.1M at $319.13Jul 1, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jul 1, 2026Shares withheld for tax 1,757 shares at $290.74 of Clean Harbors²
• Mar 13, 2026Returned to company 1,028 shares of Clean Harbors³
• Mar 13, 2026Shares withheld for tax 350 shares at $288.93 of Clean Harbors³
• Feb 2, 2026Shares withheld for tax 249 shares at $259.91 of Clean Harbors⁴
• Dec 9, 2025Gift 1,000 shares of Clean Harbors⁵
• Jul 1, 2025Shares withheld for tax 399 shares at $229.55 of Clean Harbors⁶
• Apr 1, 2025Granted 2,000 shares of Clean Harbors⁷
• Mar 17, 2025Returned to company 2,252 shares of Clean Harbors⁸
• Mar 17, 2025Shares withheld for tax 351 shares at $192.90 of Clean Harbors⁹
• Mar 17, 2025Shares withheld for tax 351 shares at $192.90 of Clean Harbors⁸
• Feb 1, 2025Shares withheld for tax 181 shares at $233.00 of Clean Harbors¹⁰
• Feb 1, 2025Shares withheld for tax 452 shares at $233.00 of Clean Harbors¹¹
• Jul 1, 2024Shares withheld for tax 606 shares at $220.63 of Clean Harbors¹²
• Mar 15, 2024Shares withheld for tax 221 shares at $187.84 of Clean Harbors¹³
• Feb 1, 2024Granted 2,056 shares of Clean Harbors¹⁴
• Feb 1, 2024Granted 561 shares of Clean Harbors¹⁴
• Dec 15, 2023Shares withheld for tax 66 shares at $174.75 of Clean Harbors¹⁵
• Aug 23, 2023Sold 10,303 shares at $171.54 of Clean Harbors¹⁶
• Jul 3, 2023Sold 717 shares at $164.43 of Clean Harbors¹⁷
• Mar 15, 2023Sold 221 shares at $133.07 of Clean Harbors¹⁸
• Feb 1, 2023Granted 3,177 shares of Clean Harbors¹⁹
• Feb 1, 2023Granted 866 shares of Clean Harbors¹⁹
• Dec 15, 2022Shares withheld for tax 150 shares at $116.50 of Clean Harbors²⁰
• Jul 1, 2022Shares withheld for tax 661 shares at $90.32 of Clean Harbors²¹
• Mar 15, 2022Shares withheld for tax 44 shares at $105.77 of Clean Harbors²²