---
schema_version: "secwatch.filing_event.v1"
accession: "0001530950-25-000250"
form_type: "8-K"
ticker: "POST"
cik: "0001530950"
company_name: "Post Holdings, Inc."
filed_at: "2025-10-20T23:59:59+00:00"
generated_at: "2026-05-17T03:13:17.337263+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Post Holdings amends bylaws to allow 25% shareholders to call special meetings

## Summary
- Board amended and restated bylaws effective October 16, 2025, as the Ninth Amended and Restated Bylaws.
- New provision permits shareholders holding at least 25% of outstanding voting stock to call a special meeting.
- Amendment is a governance change that could increase shareholder ability to influence corporate actions.

## SEC filing metadata
- accession: 0001530950-25-000250
- form_type: 8-K
- ticker: POST
- cik: 0001530950
- company_name: Post Holdings, Inc.
- filed_at: 2025-10-20T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1530950/000153095025000250/0001530950-25-000250-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1530950/000153095025000250/post-20251016.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001530950-25-000250
- JSON: https://secwatch.observer/filing/0001530950-25-000250.json
- Plain text: https://secwatch.observer/filing/0001530950-25-000250.txt

## Source-grounded claims
- claim_id: 8dcd33fc323d2ca8cb45b4dc1e7379ef6f3692fd
  claim: Post Holdings, Inc.: Amended and restated bylaws to allow shareholders holding at least 25% of outstanding voting stock to call a special meeting (effective 2025-10-16).
  evidence_excerpt: On October 16, 2025, the Board of Directors of Post Holdings, Inc. (the “Company”) amended and restated the Company’s Amended and Restated Bylaws (as amended and restated, the “ninth Amended and Restated Bylaws”), effective October 16, 2025. The ninth Amended and Restated Bylaws amended various provisions to allow shareholders holding at least 25% of the outstanding shares of voting stock of the Company to call a special meeting of the Company’s shareholders.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1530950/000153095025000250/0001530950-25-000250-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.