MOS Filing
4Filing Date: Jun 1, 2026

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

Statement of Changes in Beneficial Ownership

descriptionView SEC Filing
ACC: 0001285785-26-000081open_in_new
Total Value$0
Trades3
Insiders1

Transaction Details

WESTBROOK KELVIN R
Director·Direct
Grant · Acquire
Restricted Stock UnitsDerivative
Shares+7.27K
Price$0.00
Total Value$0
Shares Owned After7.27K
Transaction DateMay 28, 2026
Footnotes ▸

One-for-One | The restricted stock units will vest and be paid to the reporting person on the date of the issuer's 2027 Annual Meeting of Stockholders. | Not Applicable

WESTBROOK KELVIN R
Director·Direct
Exercise · Acquire
Common Stock
Shares+2.44K
Price$0.00
Total Value$0
Shares Owned After39.81K
Transaction DateMay 28, 2026
Footnotes ▸

The reporting person, pursuant to the terms of the Restricted Stock Unit Agreement under which the award of restricted stock units was made, elected to receive 50% of the restricted stock units in the form of cash with the balance paid in the form of shares of common stock at the time the award was paid.

WESTBROOK KELVIN R
Director·Direct
Exercise · Dispose
Restricted Stock UnitsDerivative
Shares-4.87K
Price$0.00
Total Value$0
Shares Owned After0
Transaction DateMay 28, 2026
Footnotes ▸

One-for-One | The reporting person, pursuant to the terms of the Restricted Stock Unit Agreement under which the award of restricted stock units was made, elected to receive 50% of the restricted stock units in the form of cash with the balance paid in the form of shares of common stock at the time the award was paid. | The restricted stock units vested on the date of the issuer's 2026 Annual Meeting of Stockholders. | Not Applicable

Post-Transaction Holdings

WESTBROOK KELVIN R
SecuritySharesChange
Common Stock39.81K+2.44K (6.52%)
Restricted Stock Units7.27K+2.40K (49.25%)
Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-28 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: MOSAIC CO (MOS) CIK: 0001285785 --- Reporting Owner --- Name: WESTBROOK KELVIN R CIK: 0001190588 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-28 | Code: M (Exercise of derivative) Shares: +2,437 | Price: $0.00 Shares Owned After: 39,807 | Ownership: D (Direct) Footnotes: [F1] The reporting person, pursuant to the terms of the Restricted Stock Unit Agreement under which the award of restricted stock units was made, elected to receive 50% of the restricted stock units in the form of cash with the balance paid in the form of shares of common stock at the time the award was paid. --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Units Date: 2026-05-28 | Code: A (Grant or award) Shares: +7,273 | Price: $0.00 Shares Owned After: 7,273 | Ownership: D (Direct) Footnotes: [F2] One-for-One [F3] The restricted stock units will vest and be paid to the reporting person on the date of the issuer's 2027 Annual Meeting of Stockholders. [F4] Not Applicable [Transaction #2] Security: Restricted Stock Units Date: 2026-05-28 | Code: M (Exercise of derivative) Shares: -4,873 | Price: $0.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F2] One-for-One [F1] The reporting person, pursuant to the terms of the Restricted Stock Unit Agreement under which the award of restricted stock units was made, elected to receive 50% of the restricted stock units in the form of cash with the balance paid in the form of shares of common stock at the time the award was paid. [F5] The restricted stock units vested on the date of the issuer's 2026 Annual Meeting of Stockholders. [F4] Not Applicable --- Footnotes (Complete Index) --- F1: The reporting person, pursuant to the terms of the Restricted Stock Unit Agreement under which the award of restricted stock units was made, elected to receive 50% of the restricted stock units in the form of cash with the balance paid in the form of shares of common stock at the time the award was paid. F2: One-for-One F3: The restricted stock units will vest and be paid to the reporting person on the date of the issuer's 2027 Annual Meeting of Stockholders. F4: Not Applicable F5: The restricted stock units vested on the date of the issuer's 2026 Annual Meeting of Stockholders. --- Signature --- /s/ /s/ Philip E. Bauer, Attorney-in-Fact for Kelvin R. Westbrook (2026-06-01)

keid analysis is for reference only and does not constitute investment advice.