Mark W. Westphal - 16 Nov 2022 Form 4 Insider Report for Post Holdings, Inc. (POST)

Role: PRES., FOODSERVICE
Signature: /s/ Diedre J. Gray, Attorney-in-Fact
Issuer symbol: POST
Transactions as of: 16 Nov 2022
Net transactions value: -$509,592
Form type: 4
Filing time: 18 Nov 2022, 15:54:17 UTC
Previous filing: 17 Nov 2022
Next filing: 06 Dec 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	POST	Common Stock	Options Exercise	$0	+6,026	+6%	$0.000000	107,225	16 Nov 2022	Direct
transaction	POST	Common Stock	Tax liability	$246,138	-2,748	-2.6%	$89.57	104,477	16 Nov 2022	Direct	F1
transaction	POST	Common Stock	Tax liability	$263,453	-2,940	-2.8%	$89.61	101,537	17 Nov 2022	Direct	F2
holding	POST	Common Stock						16,412	16 Nov 2022	By 401(k) Plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	POST	Restricted Stock Units	Options Exercise	$0	-6,026	-33%	$0.000000	12,054	16 Nov 2022	Common Stock	6,026		Direct	F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Surrender of shares in payment of tax withholding due as a result of the vesting of 6,026 restricted stock units ("RSUs") in accordance with Rule 16b-3.
F2	Surrender of shares in payment of tax withholding due as a result of the vesting of 6,447 RSUs in accordance with Rule 16b-3.
F3	Each RSU represents a contingent right to receive one share of Post Holdings, Inc. common stock. The RSUs were granted under the Post Holdings, Inc. 2021 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.
F4	One-third of the RSUs vest on each of the first, second, and third anniversaries of the date of grant without any action on the part of the participant.