Company: CLH
Filing Date: 2025-04-11
Form Type: DEF 14A
Source: 0000822818-25-000011
Chunk: 49

Company: CLEAN HARBORS INC
Filing Date: 2025-04-11
Form: DEF 14A
Chunk 49
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 provided the director or executive officer continues to hold the same number of shares.

As of December 31, 2024, all of the Company’s directors and executive officers were in compliance with the stock ownership guidelines.

Insider Trading Policy and Key Prohibited Transactions

The Company is committed to promoting high standards of ethical business conduct and compliance with applicable laws, rules, and regulations. As part of this commitment, we have adopted our Insider Trading Policygoverning the purchase, sale and/or other dispositions of our securities by our directors, officers, and employees that we believe is reasonably designed to promote compliance with insider trading laws, rules and regulations, and the stock exchange listing standards applicable to us. A copy of our Insider Trading Policy is filed as Exhibit 19 to our Annual Report on Form 10-K for the year ended December 31, 2024 .

The Company’s Insider Trading Policy prohibits all directors and executive officers (including, among others, the Co-CEOs and the other NEOs) from engaging in any transaction entered into for the purpose of reducing or eliminating the market price or investment risk associated with ownership of the Company’s securities. No director or executive officer may enter into any transaction to buy or sell any contract or other instrument that derives value from the price of the Company’s securities. These types of transactions are commonly known as “hedging.”

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The Company’s Insider Trading Policy also prohibits directors and executive officers from holding Company securities in a margin account, pledging Company securities as collateral for a loan or selling the Company’s securities short, which is the practice of selling securities that are not owned by the seller. This prohibition also includes “short sales against the box,” where the seller owns the securities being sold but may not be required to deliver them to the purchaser within a specified time period after the sale if certain market prices for the Company’s securities are not reached.

The Board has also implemented processes that we believe are designed to promote the Company’s compliance with insider trading laws, rules and regulations, and applicable listing standards.

#### Policies Related to Timing of Stock Option Grants
The Company has not granted any stock options for more than ten years. If the Company were to grant any stock options in the future, the C&HC Committee would endeavor not to make any such grants at times when there may be material nonpublic information concerning the Company which might affect the market price of the Company’s common stock. Similarly, it is our practice not to time the release of material nonpublic information based