144 0001052058 XXXXXXXX LIVE 0001530950 Post Holdings, Inc. 001-35305 2503 S. HANLEY ROAD ST. LOUIS MO 63144 314-644-7600 STIRITZ WILLIAM P Director Common Fidelity Brokerage Services LLC

245 Summer Street Boston MA 02110

384132 32785666.00 43956805 08/31/2026 NYSE Common 05/08/1997 Merger Issuer N 166 05/08/1997 N/A Common 02/09/2016 Open Market Open Market N 70000 02/09/2016 Cash/ check Common 11/21/2016 Open Market Open Market N 100000 11/21/2016 Cash/ check Common 02/08/2016 Open Market Open Market N 79907 02/08/2016 Cash/ check Common 02/06/2019 Open Market Open Market N 134059 02/06/2019 Cash/ check Y Selling out of the SUSAN E STIRITZ REVOCABLE TRST 08/31/2026 /s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for STIRITZ WILLIAM P