MOSAIC CO

Regulatory Filings • Apr 16, 2025

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

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Securities Exchange Act of 1934

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The Mosaic Company

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THE MOSAIC COMPANY C/O EQUINITI TRUST COMPANY LLC 6201 FIFTEENTH AVENUE BROOKLYN, NY 11219

You invested in THE MOSAIC COMPANY and it’s time to vote!

You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the

availability of proxy materials for the stockholder meeting to be held on May 29, 2025.

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View the Notice and Proxy Statement, Form of Proxy and 2024 Annual Report to Stockholders online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 15, 2025. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or

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