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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
______________________
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 OR 15(d) of The
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): March 4, 2026
Post Holdings, Inc.
(Exact name of registrant as specified in its charter)

Missouri | 001-35305 | 45-3355106
(State or other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.)

2503 S. Hanley Road
St. Louis, Missouri 63144
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code: (314) 644-7600
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Common Stock, $0.01 par value per share | POST | New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01. Other Events.
On March 4, 2026, Post Holdings, Inc. (the “Company”) announced that it intends to commence a private offering to eligible purchasers, subject to market and other conditions, of $500.0 million in aggregate principal amount of the Company’s 6.250% senior notes due 2034 (the “Notes”). The Company also announced that it intends to use the net proceeds from the Notes offering to pay the costs, fees and expenses associated with the Notes offering, to fund the repayment of the outstanding balance of its revolving credit facility as of December 31, 2025 and, to the extent there are any remaining net proceeds, for general corporate purposes, which could include, among other things, retirement or repayment of existing debt, share repurchases, acquisitions, capital expenditures and working capital.
This Current Report on Form 8-K is not an offer to sell or a solicitation of an offer to buy any securities, nor shall there be any sales of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.
A copy of the press release issued in connection therewith is attached hereto as Exhibit 99.1 and is incorporated herein by reference.
Item 9.01. Financial Statements and Exhibits.
(d) Exhibits.

Exhibit No. | Description
99.1 | Press Release dated March 4, 2026
104 | Cover Page Interactive Data File (the cover page XBRL tags are embedded within the Inline XBRL document)

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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 4, 2026 | Post Holdings, Inc.
| (Registrant)
| By: | /s/ Diedre J. Gray
| Name: | Diedre J. Gray
| Title: | Executive Vice President, General Counsel and Chief Administrative Officer, Secretary

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