Flugel Russell A 4

What Happened
Russell A. Flugel, Principal Accounting Officer of Mosaic Co. (MOS), converted performance‑based derivative awards into 5,545 common shares (4,437 + 1,108) on March 9, 2026 (reported as exercise/conversion, code M). He sold 2,384 of those shares to cover tax withholding at $26.92 per share, yielding $64,177. The filing also shows a reported derivative disposition of 4,437 shares at $0.00 (see footnotes).

Key Details

• Transaction date: March 9, 2026. Form 4 filed March 11, 2026 (filed within the typical two‑business‑day window).
• Acquisitions: 4,437 shares (M) and 1,108 shares (M) at $0.00 (conversion/exercise of derivative/performance units).
• Dispositions: 2,384 shares sold (F) at $26.92 → proceeds $64,177; plus a reported derivative disposition of 4,437 shares at $0.00.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Relevant footnotes: F1 — shares issued upon vesting of a performance unit award (granted 3/9/2023); F2 — shares sold to cover tax liability from vesting; F3 — one‑for‑one; F5 — RSU vesting schedule referenced; F4 — not applicable.
• Transaction codes: M = exercise/conversion of a derivative; F = payment of tax liability (share withholding).

Context
This was primarily a conversion/vesting event followed by a tax‑withholding sale — a routine administrative transaction rather than an open‑market discretionary sale. In plain terms, performance units converted into shares (no cash exercise price), and a portion of those shares were sold to satisfy taxes.