Post Holdings, Inc.

POST

Exchange: NYSE
Industry: Grain Mill Products
SEC CIK: 0001530950

SEC filings (opens in a new tab)

In the last 90 days, Post Holdings, Inc. insiders filed 0 open-market purchases and 1 sale; 415 institutions reported holding it in 13F filings for Q2 2026, worth $4.00B in total; no superinvestor holds it.

13F holders, Q3 2026

Institutional positions in Post Holdings, Inc. as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 4; +1 vs. Q2 2026
Shares held: 2.29K; +1.85K (+420.0%) vs. Q2 2026
Total value: $166.7K; +$127.5K (+325.5%) vs. Q2 2026
New holders: 1; 2 more added
Sold out: 0; 1 more reduced

412 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting POST on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding POST and their total value by quarter
Quarter	Holders	Value
Q2 2026	415	$4.00B
Q1 2026	428	$4.49B
Q4 2025	410	$4.73B
Q3 2025	416	$5.21B
Q2 2025	434	$5.58B
Q1 2025	418	$6.21B
Q4 2024	413	$6.03B
Q3 2024	408	$6.06B
Q2 2024	380	$5.55B
Q1 2024	376	$5.79B
Q4 2023	362	$5.05B
Q3 2023	358	$4.63B
Q2 2023	332	$4.49B
Q1 2023	354	$4.74B
Q4 2022	357	$4.73B
Q3 2022	324	$4.44B
Q2 2022	311	$4.45B
Q1 2022	303	$3.95B
Q4 2021	328	$6.32B
Q3 2021	319	$6.32B
Q2 2021	325	$6.37B
Q1 2021	315	$5.94B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Post Holdings, Inc.; share changes are against Q2 2026.

Institutions holding POST in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Vanguard Global Advisers, LLC	–	–	–	–	Not filed
Campbell & CO Investment Adviser LLC	–	–	–	–	Not filed
Russell Investments Group, Ltd.	–	–	–	–	Not filed
Qube Research & Technologies Ltd	–	–	–	–	Not filed
Retirement Systems of Alabama	–	–	–	–	Not filed
Trexquant Investment LP	–	–	–	–	Not filed
Edgestream Partners, L.P.	–	–	–	–	Not filed
LPL Financial LLC	–	–	–	–	Not filed
US Bancorp	–	–	–	–	Not filed
Ameriprise Financial Inc	–	–	–	–	Not filed
Vanguard Asset Management, Ltd	–	–	–	–	Not filed
Barclays PLC	–	–	–	–	Not filed
Epoch Investment Partners, Inc.	–	–	–	–	Not filed
CI Private Wealth, LLC	–	–	–	–	Not filed
Brown Brothers Harriman & Co	–	–	–	–	Not filed
Clifford Swan Investment Counsel LLC	–	–	–	–	Not filed
State Board of Administration of Florida Retirement System	–	–	–	–	Not filed
Plancorp, LLC	–	–	–	–	Not filed
Cetera Investment Advisers	–	–	–	–	Not filed
Winton Group Ltd	–	–	–	–	Not filed
Redwood Investment Management, LLC	–	–	–	–	Not filed
Great West Life Assurance Co	–	–	–	–	Not filed
Stifel Financial Corp	–	–	–	–	Not filed
Susquehanna International Group, LLP	–	–	–	–	Not filed
Walleye Capital LLC	–	–	–	–	Not filed
Hussman Strategic Advisors, Inc.	–	–	–	–	Not filed
State of Wisconsin Investment Board	–	–	–	–	Not filed
Assetmark, Inc	–	–	–	–	Not filed
Boston Partners	–	–	–	–	Not filed
Daytona Street Capital LLC	–	–	–	–	Not filed
SG Americas Securities, LLC	–	–	–	–	Not filed
Brevan Howard Capital Management LP	–	–	–	–	Not filed
MML Investors Services, LLC	–	–	–	–	Not filed
Engineers Gate Manager LP	–	–	–	–	Not filed
Y-Intercept (Hong Kong) Ltd	–	–	–	–	Not filed
MetLife Investment Management	–	–	–	–	Not filed
Police & Firemen's Retirement System of New Jersey	–	–	–	–	Not filed
Jump Financial, LLC	–	–	–	–	Not filed
Janney Montgomery Scott LLC	–	–	–	–	Not filed
Wolverine Asset Management LLC	–	–	–	–	Not filed
Resources Investment Advisors, LLC.	–	–	–	–	Not filed
New York State Common Retirement Fund	–	–	–	–	Not filed
Amalgamated Bank	–	–	–	–	Not filed
Virginia Retirement Systems Et Al	–	–	–	–	Not filed
State of New Jersey Common Pension Fund D	–	–	–	–	Not filed
Treasurer of the State of North Carolina	–	–	–	–	Not filed
Jupiter Topco LLC	–	–	–	–	Not filed
Zurcher Kantonalbank (Zurich Cantonalbank)	–	–	–	–	Not filed
KLP Kapitalforvaltning AS	–	–	–	–	Not filed
Handelsbanken Fonder AB	–	–	–	–	Not filed
B. Metzler seel. Sohn & Co. AG	–	–	–	–	Not filed
Mutual of America Capital Management LLC	–	–	–	–	Not filed
Dynamic Technology Lab Private Ltd	–	–	–	–	Not filed
Summit Trail Advisors, LLC	–	–	–	–	Not filed
Steward Partners Investment Advisory, LLC	–	–	–	–	Not filed
Vestmark Advisory Solutions, Inc.	–	–	–	–	Not filed
Magnetar Financial LLC	–	–	–	–	Not filed
Oppenheimer Asset Management Inc.	–	–	–	–	Not filed
Federated Hermes, Inc.	–	–	–	–	Not filed
Fifth Third Bancorp	–	–	–	–	Not filed
Brinker Capital Investments, LLC	–	–	–	–	Not filed
Yousif Capital Management, LLC	–	–	–	–	Not filed
Louisiana State Employees Retirement System	–	–	–	–	Not filed
Public Employees Retirement System of Ohio	–	–	–	–	Not filed
Arizona State Retirement System	–	–	–	–	Not filed
Ethic Inc.	–	–	–	–	Not filed
Vanguard Investments Australia, Ltd.	–	–	–	–	Not filed
Illinois Municipal Retirement Fund	–	–	–	–	Not filed
Entropy Technologies, LP	–	–	–	–	Not filed
Pathstone Holdings, LLC	–	–	–	–	Not filed
Hohimer Wealth Management, LLC	–	–	–	–	Not filed
Mercer Global Advisors Inc	–	–	–	–	Not filed
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	–	–	–	–	Not filed
Meyer Handelman Co	–	–	–	–	Not filed
New Mexico Educational Retirement Board	–	–	–	–	Not filed
State of Michigan Retirement System	–	–	–	–	Not filed
Hara Capital LLC	–	–	–	–	Not filed
Northwestern Mutual Investment Management Company, LLC	–	–	–	–	Not filed
Thrivent Financial for Lutherans	–	–	–	–	Not filed
Brown Advisory Inc	–	–	–	–	Not filed
Oregon Public Employees Retirement Fund	–	–	–	–	Not filed
CWM Advisors, LLC	–	–	–	–	Not filed
Exchange Traded Concepts, LLC	–	–	–	–	Not filed
Ameritas Investment Partners, Inc.	–	–	–	–	Not filed
Park Avenue Securities LLC	–	–	–	–	Not filed
Mitsubishi UFJ Trust & Banking Corp	–	–	–	–	Not filed
O'Shaughnessy Asset Management, LLC	–	–	–	–	Not filed
Pictet Asset Management Holding SA	–	–	–	–	Not filed
Teacher Retirement System of Texas	–	–	–	–	Not filed
Miracle Mile Advisors, LLC	–	–	–	–	Not filed
Captrust Financial Advisors	–	–	–	–	Not filed
Resona Asset Management Co.,Ltd.	–	–	–	–	Not filed
Wealth Enhancement Advisory Services, LLC	–	–	–	–	Not filed
United Capital Financial Advisers, LLC	–	–	–	–	Not filed
Mirae Asset Global ETFs Holdings Ltd.	–	–	–	–	Not filed
State of Tennessee, Treasury Department	–	–	–	–	Not filed
IMC-Chicago, LLC	–	–	–	–	Not filed
Arq Wealth Advisors, LLC	–	–	–	–	Not filed
Pacer Advisors, Inc.	–	–	–	–	Not filed
Trail Ridge Investment Advisors, LLC	–	–	–	–	Not filed