Clean Harbors, Inc. filed a Form 8-K with the SEC on October 28, 2026, disclosing its third-quarter results for the period ended September 30, 2026, and announcing an executive leadership transition.

Key Highlights

  • Q3 2026 results announced: The company issued a press release on October 28, 2026, covering results of operations for the third quarter ended September 30, 2026 (Exhibit 99.1).
  • Executive leadership transition: A separate press release dated October 28, 2026, announced an executive leadership transition (Exhibit 99.2).
  • Regulation FD disclosure: The leadership transition press release was furnished under Item 7.01 (Regulation FD Disclosure).
  • Signed by CFO: The filing was signed by Eric J. Dugas, Executive Vice President and Chief Financial Officer.
  • Exchange listing: Common Stock ($0.01 par value) trades on the New York Stock Exchange under the symbol CLH (NYSE:CLH).

Clean Harbors Furnishes Q3 2026 Results and Executive Transition Disclosures

Clean Harbors, Inc. (NYSE:CLH), headquartered at 42 Longwater Drive, Norwell, Massachusetts, filed a current report on Form 8-K on October 28, 2026. According to the filing, the report covers two separate disclosures made on the same date: the company's financial results for the third quarter ended September 30, 2026, and an announcement related to an executive leadership transition.

Under Item 2.02 (Results of Operations and Financial Condition), the filing states that the company issued a press release on October 28, 2026, announcing its results of operations for the third quarter ended September 30, 2026. That press release was furnished as Exhibit 99.1. The filing does not reproduce specific financial figures within the body of the 8-K itself; those details are contained in the attached exhibit.

Under Item 7.01 (Regulation FD Disclosure), the filing states that the company issued a separate press release on October 28, 2026, announcing an executive leadership transition. That press release was furnished as Exhibit 99.2. The 8-K does not name the specific individuals involved in the transition or describe the nature of the changes; those details are contained in the furnished exhibit. The filing was signed on behalf of the registrant by Eric J. Dugas, identified as Executive Vice President and Chief Financial Officer.

What Was Disclosed

Clean Harbors filed an 8-K on October 28, 2026, furnishing two press releases: one covering third-quarter 2026 operating results and one announcing an executive leadership transition, with both documents attached as exhibits.