Form 4 Filing: MAINER MATTHEW J Surrenders for Taxes $139K of $POST

TAX WITHHOLDING

⚡ MATERIALITY: 4/10

corporate issuer

Post Holdings, Inc.

Ticker: $POST

Transaction Value

$139K

Price/Share: $24.72

transaction date

2026-11-12

Shares: 5,641

Market Price Activity

HillSignal AI Analytical Report

SEC Form 4 documents direct changes in beneficial ownership of securities for public corporations. The reporting insider, MAINER MATTHEW J, holds the title of EVP, CFO & TREASURER at Post Holdings, Inc..

On 2026-11-12, the insider transacted 5,641 shares.The shares were transacted at a weighted average price of $24.72 per share, resulting in a total market-relevant value of $139K.

Executive Summary Summary

MAINER MATTHEW J (EVP, CFO & TREASURER) had withheld for taxes $139K of $POST

Post-Transaction Position: 86,945 shares

SEC Accession No: 0001954094-26-000003 (CIK: 1954094)

Verified Multi-Source Index

Verify the accuracy of this insider transaction and corporate entity independently. HillSignal pulls data directly from official SEC databases; use the sources below to corroborate.

SEC EDGAR FilingView Source Form 4

Yahoo Finance$POST Quote & Profile

OpenCorporates RegistryVerify Corporate Identity

Google News$POST News Coverage