Flash FinanceUS
Market open S&P 5007,376.86+0.31% Nasdaq24,579.42+1.09% Dow 3051,285.73-0.46% Russell 20002,754.11+0.89% Nasdaq-10026,989.99+1.35% MidCap 4003,602.50+0.56% SmallCap 6001,673.98+0.05% VIX25.64-9.01% 10Y Yield4.86+0.45% Close of Nov 06, 2026
AI brief of an SEC Form 8-K · Post (POST)

Post Holdings' Chief Accounting Officer Takes Medical Leave; CFO Named Interim

Neutral Impact 2 of 5 leadership Written later

Post Holdings said its Senior Vice President and Chief Accounting Officer, Bradly A. Harper, is taking a temporary medical leave, with CFO Matthew J. Mainer serving as interim principal accounting officer. The board also approved an updated Code of Conduct, effective February 1, 2027, that adds new content on areas such as artificial intelligence and cybersecurity while stating it does not waive any provision of the prior code.

Key points

  • Bradly A. Harper, SVP and Chief Accounting Officer, is on temporary medical leave; the filing gives no return date.
  • Matthew J. Mainer, EVP, CFO and Treasurer, is interim Chief Accounting Officer and principal accounting officer during the leave.
  • Board approved the New Code on October 15, 2026; it takes effect February 1, 2027 and supersedes the Prior Code.
  • New Code adds content on artificial intelligence, prediction markets and fraud prevention, and expands topics including cybersecurity and conflicts of interest.

The filing

CompanyPost (POST)
Form8-K, current report
Filed with the SECOct 16, 2026, 4:40 PM ET
Accession number0001530950-26-000089

Items reported: 5.02 Director / Officer Change5.05 Code of Ethics Change

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:38 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on October 16, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.