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Get filing alertsPost Holdings CAO Bradly Harper takes temporary medical leave; CFO Matthew Mainer steps in as interim
Filed October 16, 2026 · Period ending October 13, 2026 · ~1 min read
Key Changes
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Chief Accounting Officer Bradly A. Harper is taking a temporary medical leave of absence; duration and reason beyond medical leave are not disclosed.
Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Compensation verify on EDGAR → -
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CFO Matthew J. Mainer will serve as Interim Chief Accounting Officer and principal accounting officer during Harper's leave, ensuring continuity in financial reporting.
Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Compensation verify on EDGAR → -
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Board approved an updated Code of Conduct effective February 1, 2027, adding guidance on AI, prediction markets, fraud prevention, and expanding sections on human rights, trade compliance, cybersecurity, and other topics.
Item 5.05 verify on EDGAR → -
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Adoption of the new Code does not relate to, and will not result in, any waiver of any provision in the prior code.
Item 5.05 verify on EDGAR →
Summary
Post Holdings disclosed that its Chief Accounting Officer, Bradly A. Harper, is taking a temporary medical leave of absence. The company did not specify the expected duration or the nature of the medical condition. To maintain continuity in financial reporting, CFO Matthew J. Mainer will assume the duties of Chief Accounting Officer and principal accounting officer on an interim basis.
This is a common governance response to an unexpected executive absence and does not indicate any disagreement or financial reporting issue. Separately, the Board approved an updated Code of Conduct effective February 1, 2027.
The new code modernizes ethics policies to address emerging risk areas such as artificial intelligence, prediction markets, and fraud prevention, and expands guidance on human rights, trade compliance, cybersecurity, and other topics. The company explicitly stated that the adoption does not involve any waiver of the prior code's provisions. This is a routine governance update with no immediate impact on operations or financial results.
Section-by-Section Diff
Event · Item 5.05
Post Holdings approved an updated Code of Conduct effective Feb 1, 2027, modernizing ethics policies without any waivers.
Show 3 minor / wording changes
Added in current filing · verify on EDGAR →
On October 15, 2026, the Board of Directors of the Company approved an updated Code of Conduct (the “New Code”), which will become effective February 1, 2027.
The Board approved a new Code of Conduct that takes effect February 1, 2027, replacing the existing code. The update modernizes content for regulatory and technological changes while keeping the company's core ethical principles.
Added in current filing · verify on EDGAR →
The approval of the New Code does not relate to, and its adoption will not result in, any waiver, explicit or implicit, of any provision in the Prior Code.
The company explicitly states that adopting the new code does not involve any waiver of the prior code's provisions. This is a routine governance update with no disciplinary or compliance event.
Added in current filing · verify on EDGAR →
new content regarding emerging risk areas and evolving regulatory and technological developments, such as those related to artificial intelligence, prediction markets and fraud prevention; and (ii) expanded or restructured content on the topics of human rights, trade compliance, cybersecurity and data protection, workplace civility, records management, conflicts of interest and internal investigations.
The new code adds guidance on AI, prediction markets, and fraud prevention, and expands sections on human rights, trade compliance, cybersecurity, and other topics. These are standard policy updates reflecting current regulatory and technological trends.
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Figures/quotes linked to EDGAR · Narrative written by AI · Oct 19, 2026 · How we verify