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COMPASS MINERALS INTERNATIONAL INC

For the period ended Sep 30, 2025. Filed Dec 12, 2025.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Dec 12, 2025

CMP$23.44+2.3%Stored close · as of Nov 9, 2026

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Contents

Item 9B. Other Information

Rule 10b5-1 Trading Plans

In the fourth quarter of fiscal 2025, none of our directors or officers (as defined in Rule 16a-1(f) under the Exchange Act) of Compass Minerals International, Inc. adopted orterminated any contract, instruction or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act or any “non-Rule 10b5-1 trading arrangement” as defined in Item 408(c) of Regulation S-K. Additionally, Compass Minerals International, Inc. did not adopt or terminate any Rule 10b5-1 trading arrangement during the fourth quarter of fiscal 2025.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.