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AI Earnings Predictions for Clean Harbors Inc. (CLH)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

SELL

1-Day Prediction

-1.83%

$271.21

0% positive prob.

5-Day Prediction

-3.70%

$266.02

0% positive prob.

20-Day Prediction

+0.52%

$277.69

0% positive prob.

Price at prediction: $276.25 Confidence: 100.0% Model AUC: 1.0000 Quarter: Q4 2025

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K SELL

Feb 18, 2026 · 100% conf.

AI Prediction SELL

1D

-1.83%

$271.21

Act: +1.84%

5D

-3.70%

$266.02

Act: +3.54%

20D

+0.52%

$277.69

Price: $276.25 Prob +5D: 0% AUC: 1.000
0000822818-26-000004

clh-202602180000822818false00008228182026-02-182026-02-18

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2026

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000 Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On February 18, 2026, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the fourth quarter and year ended December 31, 2025. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated February 18, 2026

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

February 18, 2026/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2025
Q3

Q3 2025 Earnings

8-K

Oct 29, 2025

0000822818-25-000038

clh-202510290000822818false00008228182025-10-292025-10-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2025

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On October 29, 2025, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the third quarter ended September 30, 2025. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated October 29, 2025

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

October 29, 2025/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2025
Q2

Q2 2025 Earnings

8-K

Jul 30, 2025

0000822818-25-000028

clh-202507300000822818false00008228182025-07-302025-07-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2025

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On July 30, 2025, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the second quarter ended June 30, 2025. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated July 30, 2025

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

July 30, 2025/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2025
Q1

Q1 2025 Earnings

8-K

Apr 30, 2025

0000822818-25-000017

clh-202504300000822818false00008228182025-04-302025-04-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2025

CLEAN HARBORS, INC..

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On April 30, 2025, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the first quarter ended March 31, 2025. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated April 30, 2025

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

April 30, 2025/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2024
Q4

Q4 2024 Earnings

8-K

Feb 19, 2025

0000822818-25-000004

clh-202502190000822818false00008228182025-02-192025-02-19

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2025

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000 Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On February 19, 2025, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the fourth quarter and year ended December 31, 2024. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated February 19, 2025

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

February 19, 2025/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2024
Q3

Q3 2024 Earnings

8-K

Oct 30, 2024

0000822818-24-000043

clh-202410300000822818false00008228182024-10-302024-10-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2024

CLEAN HARBORS, INC..

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On October 30, 2024, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the third quarter ended September 30, 2024. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated October 30, 2024

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

October 30, 2024/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2024
Q2

Q2 2024 Earnings

8-K

Jul 31, 2024

0000822818-24-000032

clh-202407310000822818false00008228182024-07-312024-07-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 31, 2024

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On July 31, 2024, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the second quarter ended June 30, 2024. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated May 1, 2024

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

July 31, 2024/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2024
Q1

Q1 2024 Earnings

8-K

May 1, 2024

0000822818-24-000019

clh-202405010000822818false00008228182024-05-012024-05-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 1, 2024

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On May 1, 2024, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the first quarter ended March 31, 2024. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated May 1, 2024

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

May 1, 2024/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2023
Q4

Q4 2023 Earnings

8-K

Feb 21, 2024

0000822818-24-000005

clh-202402210000822818false00008228182024-02-212024-02-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 21, 2024

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On February 21, 2024, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the fourth quarter and year ended December 31, 2023. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated February 21, 2024

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

February 21, 2024/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2023
Q3

Q3 2023 Earnings

8-K

Nov 1, 2023

0000822818-23-000045

clh-202311010000822818false00008228182023-11-012023-11-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 1, 2023

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On November 1, 2023, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the third quarter ended September 30, 2023. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated November 1, 2023

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

November 1, 2023/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2023
Q2

Q2 2023 Earnings

8-K

Aug 2, 2023

0000822818-23-000038

clh-202308020000822818false00008228182023-08-022023-08-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 2, 2023

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On August 2, 2023, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the second quarter ended June 30, 2023. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated August 2, 2023

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

August 2, 2023/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2023
Q1

Q1 2023 Earnings

8-K

May 3, 2023

0000822818-23-000031

clh-202305030000822818false00008228182023-05-032023-05-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 3, 2023

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On May 3, 2023, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the first quarter ended March 31, 2023. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated May 3, 2023

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

May 3, 2023/s/ Eric J. Dugas Executive Vice President and Chief Financial Officer

2

2022
Q4

Q4 2022 Earnings

8-K

Mar 1, 2023

0000822818-23-000009

clh-202303010000822818false00008228182023-03-012023-03-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 1, 2023

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On March 1, 2023, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the fourth quarter and year ended December 31, 2022. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated March 1, 2023

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

March 1, 2023/s/ Michael L. Battles Executive Vice President and Chief Financial Officer

2

2022
Q3

Q3 2022 Earnings

8-K

Nov 2, 2022

0000822818-22-000043

clh-202211020000822818false00008228182022-11-022022-11-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 2, 2022

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On November 2, 2022, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the third quarter ended September 30, 2022. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated November 2, 2022

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

November 2, 2022/s/ Michael L. Battles Executive Vice President and Chief Financial Officer

2

2022
Q2

Q2 2022 Earnings

8-K

Aug 3, 2022

0000822818-22-000032

clh-202208030000822818false00008228182022-08-032022-08-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 3, 2022

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On August 3, 2022, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the second quarter ended June 30, 2022. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated August 3, 2022

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

August 3, 2022/s/ Michael L. Battles Executive Vice President and Chief Financial Officer

2

2022
Q1

Q1 2022 Earnings

8-K

May 4, 2022

0000822818-22-000023

clh-202205040000822818false00008228182022-05-042022-05-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 4, 2022

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On May 4, 2022, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the first quarter ended March 31, 2022. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated May 4, 2022

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

May 4, 2022/s/ Michael L. Battles Executive Vice President and Chief Financial Officer

2

2021
Q4

Q4 2021 Earnings

8-K

Feb 23, 2022

0000822818-22-000004

clh-202202230000822818false00008228182022-02-232022-02-23

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 23, 2022

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On February 23, 2022, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the fourth quarter and year ended December 31, 2021. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated February 23, 2022

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

February 23, 2022/s/ Michael L. Battles Executive Vice President and Chief Financial Officer

2

2021
Q3

Q3 2021 Earnings

8-K

Nov 3, 2021

0000822818-21-000051

clh-202111030000822818false00008228182021-11-032021-11-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 3, 2021

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On November 3, 2021, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the third quarter ended September 30, 2021. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated November 3, 2021

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

November 3, 2021/s/ Michael L. Battles Executive Vice President and Chief Financial Officer

2

2021
Q2

Q2 2021 Earnings

8-K

Aug 4, 2021

0000822818-21-000037

clh-202108040000822818false00008228182021-08-042021-08-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 4, 2021

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts 001-34223 04-2997780

(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

42 Longwater DriveNorwellMA02061-9149 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered

Common Stock, $0.01 par value CLH New York Stock Exchange

Item 2.02 Results of Operations and Financial Condition

On August 4, 2021, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the second quarter ended June 30, 2021. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description 99.1Press Release dated August 4, 2021

104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

1

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc. (Registrant)

August 4, 2021/s/ Michael L. Battles Executive Vice President and Chief Financial Officer

2

2020
Q4

Q4 2020 Earnings

8-K

Feb 24, 2021

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0000822818

2021-02-24 2021-02-24

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UNITED STATES

SECURITIES AND

EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 24, 2021

CLEAN HARBORS, INC.

(Exact name of registrant as specified in its charter)

Massachusetts

001-34223

04-2997780

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

42 Longwater Drive, Norwell, Massachusetts

02061-9149

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code (781) 792-5000

Not Applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol

Name of each exchange on which

registered

Common Stock, $0.01 par value

CLH

New York Stock Exchange

Item 2.02Results of Operations and Financial Condition

On February 24, 2021, Clean Harbors, Inc. (“the Company”) issued a press release announcing the Company’s results of operations for the fourth quarter and year ended December 31, 2020. A copy of that press release is furnished with this report as Exhibit 99.1.

Item 9.01Financial Statements and Exhibits

(d) Exhibits. The following exhibits are being filed herewith:

Exhibit No.

Description

99.1

Press Release dated February 24, 2021

104

The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Clean Harbors, Inc.

(Registrant)

February 24, 2021

/s/ Michael L. Battles

Executive Vice President and Chief Financial Officer

About Clean Harbors Inc. (CLH) Earnings

This page provides Clean Harbors Inc. (CLH) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on CLH's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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