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POST · Additional Proxy Materials (DEFA14A) · Filed December 15, 2025

Post Holdings Inc — Additional Proxy Materials (DEFA14A)

Form
DEFA14A
Filed
December 15, 2025
Ticker
POST
Accession
0001530950-25-000285
Boardroom Alpha · Filing insights

Post Holdings' Board urges shareholders to vote FOR all director nominees and for amendments removing supermajority voting requirements.

About Post Holdings Inc
Market cap
$4.1B
1Y TSR
−10.4%
3Y TSR
+4.8%
Board grade
B
Sector
Consumer Defensive
CEO
Nicolas Catoggio
Last annual meeting: Jan 29, 2026 · View full Post Holdings Inc profile →
Document


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
 __________________________________
 SCHEDULE 14A
(Rule 14a-101)
INFORMATION REQUIRED IN
PROXY STATEMENT
SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the Securities
Exchange Act of 1934
Filed by the Registrant  ý
Filed by a party other than the Registrant  ¨
Check the appropriate box:
oPreliminary Proxy Statement
oConfidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
oDefinitive Proxy Statement
ýDefinitive Additional Materials
oSoliciting Material under §240.14a-12
Post Holdings, Inc.
(Name of Registrant as Specified In Its Charter)

Payment of Filing Fee (Check all boxes that apply):
ýNo fee required
oFee paid previously with preliminary materials
oFee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11









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Vote Online
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Go to www.envisionreports.com/POST or scan
the QR code - login details are located in the
shaded bar below.
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Proxies for shares owned through the Post Holdings, Inc. Savings Investment Plan and the 8th Avenue Food & Provisions, Inc. 401(k) Plan must be received by 11:59 p.m. Eastern Time on January 26, 2026.
Shareholder Meeting Notice
Important Notice Regarding the Availability of Proxy Materials for the
Post Holdings, Inc. Shareholder Meeting To Be Held on January 29, 2026
Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual shareholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important!
This communication presents only an overview of the more complete proxy materials that are available to you on the Internet or by mail and is not a form for voting. We encourage you to access and review all of the important information contained in the proxy materials before voting.
Proxy Materials Available to View or Receive:
1.Notice and Proxy Statement     2. Annual Report

The proxy materials are available at:
www.envisionreports.com/POST
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Easy Online Access – View your proxy materials and vote.
When you go online to view materials, you can also vote your shares.
Step 1: Go to www.envisionreports.com/POST.
Step 2: Click on Cast Your Vote or Request Materials.
Step 3: Follow the instructions on the screen to log in.
Step 4: Make your selections as instructed on each screen for your delivery preferences.
Step 5: Vote your shares.
When you go online, you can also help the environment by consenting to receive electronic delivery of future materials.
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Obtaining a Copy of the Proxy Materials and Form of Proxy – If you want to receive a paper or email copy of these documents, you must request one. You will otherwise not receive a paper or email copy. There is no charge to you for requesting a copy. Please make your request as instructed on the reverse side on or before January 19, 2026 to facilitate timely delivery.




Shareholder Meeting Notice

Post Holdings, Inc.’s Annual Meeting of Shareholders will be held on Thursday, January 29, 2026 at 9:00 a.m., Central Time, virtually via the Internet at https://meetnow.global/MVPXFQC. To access the virtual meeting and vote at the virtual meeting, you must have the information that is printed in the shaded bar located on the reverse side of this form. Please refer to the Proxy Statement for additional information.
Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations.
The Board of Directors recommends a vote FOR all of the nominees listed in Item No. 1 and FOR Item Nos. 2, 3, 4(a), 4(b) and 4(c).
1.    Election of Directors:
01 - Dorothy M. Burwell
02 - Gregory L. Curl
03 - Thomas C. Erb
04 - David W. Kemper
05 - Jennifer Kuperman
06 - David P. Skarie
07 - Robert V. Vitale
2.    Ratification of PricewaterhouseCoopers LLP as the Company's Independent Registered Public Accounting Firm for the fiscal year ending September 30, 2026.
3.    Advisory approval of the Company's executive compensation.
4.    Amendments to the Company's Amended and Restated Articles of Incorporation:
a.Amendment to eliminate the supermajority voting requirement relating to the removal of directors.
b.Amendment to eliminate the supermajority voting requirement relating to the approval of business combinations.
c.Amendment to eliminate the supermajority voting requirement relating to amendments to the provisions regarding the approval process for business combinations.

PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must vote online or request a paper copy of the proxy materials to receive a proxy card.



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Here’s how to order a paper or email copy of the proxy materials and form of proxy and select delivery preferences:
Current and future delivery requests can be submitted using the options below.
If you request an email copy, you will receive an email with a link to the current meeting materials.
PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a copy of the proxy materials and form of proxy.
Internet – Go to www.envisionreports.com/POST. Click Cast Your Vote or Request Materials.
Phone – Call us free of charge at 1-866-641-4276.
Email – Send an email to investorvote@computershare.com with “Proxy Materials Post Holdings, Inc.” in the subject line. Include your full name and address, plus the number located in the shaded bar on the reverse side, and state that you want a paper copy of the meeting materials.
To facilitate timely delivery, all requests for a paper copy of the proxy materials and form of proxy must be received by January 19, 2026.


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More filings

Other filings from Post Holdings Inc (POST)

Reference

Frequently asked questions

When did Post Holdings Inc file this DEFA14A?
Post Holdings Inc (POST) filed this Additional Proxy Materials (DEFA14A) with the SEC on December 15, 2025. The accession number assigned by EDGAR is 0001530950-25-000285.
What does a DEFA14A disclose?
DEFA14A is additional definitive proxy soliciting material filed in connection with a shareholder meeting — supplemental letters, slides, or amendments issued after the main proxy statement.
What is the key takeaway from this filing?
Post Holdings' Board urges shareholders to vote FOR all director nominees and for amendments removing supermajority voting requirements. This is Boardroom Alpha's one-line summary of the additional proxy materials; see the full filing text above for the formal disclosure.
Where can I find Post Holdings Inc's prior proxy statements on EDGAR?
The SEC EDGAR browser lists every DEFA14A Post Holdings Inc has filed under CIK 1530950, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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