MOSAIC CO (MOS) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-09 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: MOSAIC CO (MOS) CIK: 0001285785 --- Reporting Owner --- Name: Precourt Walter F. III CIK: 0001609765 Role: Officer (SVP - Chief Admin Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-03-09 | Code: M (Exercise of derivative) Shares: +12,181 | Price: $0.00 Shares Owned After: 140,727 | Ownership: D (Direct) [Transaction #2] Security: Common Stock Date: 2026-03-09 | Code: M (Exercise of derivative) Shares: +5,138 | Price: $26.92 Total Value: $138,314.96 Shares Owned After: 145,865 | Ownership: D (Direct) Footnotes: [F1] Shares Issued to reporting person upon the vesting of a performance unit award granted to reporting person on March 9, 2023. The performance unit award was not a derivative security. [Transaction #3] Security: Common Stock Date: 2026-03-09 | Code: F (Payment of exercise/tax) Shares: -6,667 | Price: $26.92 Total Value: $179,475.64 Shares Owned After: 139,198 | Ownership: D (Direct) Footnotes: [F2] Shares sold to cover tax liability incurred as a result of most recent vesting of restricted stock and performance units. --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Units Date: 2026-03-09 | Code: M (Exercise of derivative) Shares: -12,181 | Price: $0.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F3] One-for-One [F4] Not Applicable --- Holdings --- [Holding #1] Security: Restricted Stock Units Ownership: D (Direct) Footnotes: [F3] One-for-One [F5] The Restricted Stock Unit will vest a cumulative vesting percentage equal to 33% on March 4, 2027, 66% on March 4, 2028 and 100% on March 4, 2029. [F4] Not Applicable [Holding #2] Security: Restricted Stock Units Ownership: D (Direct) Footnotes: [F3] One-for-One [F4] Not Applicable [Holding #3] Security: Restricted Stock Units Ownership: D (Direct) Footnotes: [F3] One-for-One [F4] Not Applicable --- Footnotes (Complete Index) --- F1: Shares Issued to reporting person upon the vesting of a performance unit award granted to reporting person on March 9, 2023. The performance unit award was not a derivative security. F2: Shares sold to cover tax liability incurred as a result of most recent vesting of restricted stock and performance units. F3: One-for-One F4: Not Applicable F5: The Restricted Stock Unit will vest a cumulative vesting percentage equal to 33% on March 4, 2027, 66% on March 4, 2028 and 100% on March 4, 2029. --- Signature --- /s/ /s/ Philip E. Bauer, Attorney-in-Fact for Walter F. Precourt III (2026-03-11)