Every 424B that The Mosaic Company (MOS) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow MOS and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full MOS filings page.
The Mosaic Company is issuing $2.0 billion of senior unsecured notes in three tranches: $1.0 billion 5.350% notes due 2031, $500 million 5.650% notes due 2034, and $500 million 5.900% notes due 2036, each paying interest semiannually.
Mosaic expects net proceeds of $1,983.3 million, intended primarily to fund cash tender offers for up to $1.4 billion of existing notes and debentures, plus accrued interest, fees and expenses, with any remainder available for general corporate purposes, including other debt repayment.
The notes are senior unsecured obligations, ranking equally with Mosaic’s other unsecured senior debt and effectively subordinated to secured debt and all liabilities of subsidiaries. Investors face risks including subordination to secured and subsidiary debt, lack of a trading market, and potential change-of-control repurchase funding constraints.
The Mosaic Company is conducting a registered offering of multiple series of senior unsecured notes under its shelf registration. The notes will pay semiannual interest in U.S. dollars and have staggered maturity dates, with optional redemption provisions, including a make-whole call before an applicable Par Call Date and a par redemption thereafter.
Mosaic intends to use the net proceeds primarily to fund tender offers for outstanding 4.050% Senior Notes due 2027, 7.300% Debentures due 2028, 5.375% Senior Notes due 2028 and 4.350% Senior Notes due 2029, up to a Tender Cap of $1,400,000,000, plus accrued interest and related costs, and otherwise for general corporate purposes including potential debt repayment. The notes will be senior unsecured obligations ranking equally with Mosaic’s other senior unsecured debt but effectively subordinated to secured indebtedness and all liabilities of subsidiaries.
As of June 30, 2026, Mosaic had approximately $5.86 billion of indebtedness (excluding intercompany debt and letters of credit) and its consolidated subsidiaries had approximately $1.45 billion of indebtedness. Cash and cash equivalents were $294.0 million, total short-term debt was $1,088.0 million and total equity was $11,634.9 million. The notes will not be listed on any securities exchange, and there is no established trading market. A Change of Control Triggering Event would require Mosaic to offer to repurchase affected notes at 101% of principal plus accrued interest, subject to liquidity and covenant risks highlighted in the risk factors.
The Mosaic Company launched a primary debt offering of $900,000,000 in senior unsecured notes, consisting of $500,000,000 4.350% notes due 2029 and $400,000,000 4.600% notes due 2030. Interest is paid semiannually, with the 2029 series on January 15 and July 15 (first payment July 15, 2026) and the 2030 series on May 15 and November 15 (first payment May 15, 2026). The notes mature on January 15, 2029 and November 15, 2030, respectively.
The public offering prices were 99.934% for the 2029 notes and 99.885% for the 2030 notes, with underwriting discounts of 0.400% and 0.600%. Mosaic estimates net proceeds of approximately $893.5 million, to be used for general corporate purposes, which may include repayment of indebtedness. The notes are senior unsecured obligations ranking equally with Mosaic’s existing and future unsecured senior debt.
Mosaic may redeem the notes, including at par after the applicable Par Call Date, and must offer to repurchase at 101% upon a Change of Control Triggering Event. The company expects the notes to be rated investment grade. The notes are new issues and will not be listed; settlement is expected through DTC.
The Mosaic Company launched a preliminary prospectus supplement to offer new senior unsecured notes under its automatic shelf registration. The notes will pay interest semiannually, include optional redemption features (including a make-whole provision before the Par Call Date and 100% of principal thereafter), and carry a holder right to require repurchase at 101% of principal upon a Change of Control Triggering Event.
The notes will rank equally with Mosaic’s other unsecured senior debt, be issued in $2,000 minimum denominations via DTC in global form, and will not be listed on any exchange. Mosaic expects to use proceeds for general corporate purposes, which may include repayment of indebtedness. As of September 30, 2025, consolidated subsidiaries had approximately $1.3 billion of indebtedness.