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
Bank of Montreal	–	–	–	–	Not filed
Amundi	–	–	–	–	Not filed
Sequoia Financial Advisors, LLC	–	–	–	–	Not filed
Fox Run Management, L.L.C.	–	–	–	–	Not filed
Laurion Capital Management LP	–	–	–	–	Not filed
SeaBridge Investment Advisors LLC	–	–	–	–	Not filed
Jain Global LLC	–	–	–	–	Not filed
TD Waterhouse Canada Inc.	–	–	–	–	Not filed
Frec Markets, Inc.	–	–	–	–	Not filed
Benjamin Edwards Inc	–	–	–	–	Not filed
Commonwealth Equity Services, LLC	–	–	–	–	Not filed
Quadrant Capital Group LLC	–	–	–	–	Not filed
Xponance, Inc.	–	–	–	–	Not filed
JustInvest LLC	–	–	–	–	Not filed
Voya Investment Management LLC	–	–	–	–	Not filed
Weik Capital Management	–	–	–	–	Not filed
SRS Capital Advisors, Inc.	–	–	–	–	Not filed
Nisa Investment Advisors, LLC	–	–	–	–	Not filed
Universal- Beteiligungs- und Servicegesellschaft mbH	–	–	–	–	Not filed
Warberg Asset Management LLC	–	–	–	–	Not filed
Advisor Group Holdings, Inc.	–	–	–	–	Not filed
HighTower Advisors, LLC	–	–	–	–	Not filed
SummitTX Capital, L.P.	–	–	–	–	Not filed
Neuberger Berman Group LLC	–	–	–	–	Not filed
Watershed Asset Management, L.L.C.	–	–	–	–	Not filed
Creative Planning	–	–	–	–	Not filed
Savant Capital, LLC	–	–	–	–	Not filed
Banque Transatlantique SA	–	–	–	–	Not filed
Ensign Peak Advisors, Inc	–	–	–	–	Not filed
Toroso Investments, LLC	–	–	–	–	Not filed
Vestcor Inc	–	–	–	–	Not filed
Armis Advisers, LLC	–	–	–	–	Not filed
State of Alaska, Department of Revenue	–	–	–	–	Not filed
Krilogy Financial LLC	–	–	–	–	Not filed
Asset Management One Co.,Ltd.	–	–	–	–	Not filed
Guggenheim Capital LLC	–	–	–	–	Not filed
Integrated Wealth Concepts LLC	–	–	–	–	Not filed
AlphaGrep UK Ltd	–	–	–	–	Not filed
Wiley Bros.-Aintree Capital, LLC	–	–	–	–	Not filed
Cookson Peirce & Co Inc	–	–	–	–	Not filed
Welch Group, LLC	–	–	–	–	Not filed
Public Employees Retirement Association of Colorado	–	–	–	–	Not filed
Sanctuary Advisors, LLC	–	–	–	–	Not filed
Nykredit A/S	–	–	–	–	Not filed
Moneta Group Investment Advisors LLC	–	–	–	–	Not filed
Kera Capital Partners, Inc.	–	–	–	–	Not filed
Argent Trust Co	–	–	–	–	Not filed
111 Capital	–	–	–	–	Not filed
Mirabella Financial Services LLP	–	–	–	–	Not filed
Colony Group, LLC	–	–	–	–	Not filed
Autumn Glory Partners, LLC	–	–	–	–	Not filed
Clarity Wealth Development LLC	–	–	–	–	Not filed
Concurrent Investment Advisors, LLC	–	–	–	–	Not filed
Private Trust Co NA	–	–	–	–	Not filed
Swiss Life Asset Management Ltd	–	–	–	–	Not filed
Connor, Clark & Lunn Investment Management Ltd.	–	–	–	–	Not filed
Gateway Investment Advisers LLC	–	–	–	–	Not filed
Securian Asset Management, Inc	–	–	–	–	Not filed
Schonfeld Strategic Advisors LLC	–	–	–	–	Not filed
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management	–	–	–	–	Not filed
AlphaCore Capital LLC	–	–	–	–	Not filed
The PNC Financial Services Group, Inc.	–	–	–	–	Not filed
Camden Capital, LLC	–	–	–	–	Not filed
Truist Financial Corp	–	–	–	–	Not filed
Claret Asset Management Corp	–	–	–	–	Not filed
Two Sigma Securities, LLC	–	–	–	–	Not filed
M&T Bank Corp	–	–	–	–	Not filed
Tower Research Capital LLC (TRC)	–	–	–	–	Not filed
Axq Capital, LP	–	–	–	–	Not filed
Coldstream Capital Management Inc	–	–	–	–	Not filed
Vident Advisory, LLC	–	–	–	–	Not filed
Maryland State Retirement & Pension System	–	–	–	–	Not filed
Platform Technology Partners	–	–	–	–	Not filed
QRG Capital Management, Inc.	–	–	–	–	Not filed
Vise Technologies, Inc.	–	–	–	–	Not filed
Clearstead Advisors, LLC	–	–	–	–	Not filed
Chicago Partners Investment Group LLC	–	–	–	–	Not filed
Fulcrum Asset Management LLP	–	–	–	–	Not filed
Everett Harris & Co	–	–	–	–	Not filed
Lido Advisors, LLC	–	–	–	–	Not filed
Simplex Trading, LLC	–	–	–	–	Not filed
Rockefeller Capital Management L.P.	–	–	–	–	Not filed
Leonteq Securities AG	–	–	–	–	Not filed
South Dakota Investment Council	–	–	–	–	Not filed
Bayforest Capital Ltd	–	–	–	–	Not filed
STRS Ohio	–	–	–	–	Not filed
Sterling Capital Management LLC	–	–	–	–	Not filed
KBC Group NV	–	–	–	–	Not filed
Parkside Financial Bank & Trust	–	–	–	–	Not filed
McDonald Partners LLC	–	–	–	–	Not filed
Global Retirement Partners, LLC	–	–	–	–	Not filed
Central Trust Co	–	–	–	–	Not filed
Central Pacific Bank - Trust Division	–	–	–	–	Not filed
GAMMA Investing LLC	–	–	–	–	Not filed
Keating Financial Advisory Services, Inc.	–	–	–	–	Not filed
Atlantic Union Bankshares Corp	–	–	–	–	Not filed
Hantz Financial Services, Inc.	–	–	–	–	Not filed
State of Wyoming	–	–	–	–	Not filed
Millstone Evans Group, LLC	–	–	–	–	Not filed
Atwood & Palmer Inc	–	–	–	–	Not filed