William P. Stiritz - 04 Mar 2026 SCHEDULE 13D/A Report for Post Holdings, Inc. Common Stock, $0.01 par value (POST)

Filing Manager: William P. Stiritz
Reporting Manager: William P. Stiritz
Security: Post Holdings, Inc. Common Stock, $0.01 par value
Symbol: POST
Shares outstanding: 47,431,728 shares
Disclosed Ownership: 4,885,468 shares
Ownership: 10%
Form type: SCHEDULE 13D/A
Filing time: 05 Mar 2026, 16:41:06 UTC
Date of event: 04 Mar 2026
Previous filing: 15 Oct 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
William P. Stiritz	10%	4,885,468	4,501,336	384,132	/s/ William P. Stiritz	William P. Stiritz	0001052058