POST · Post Holdings, Inc. · Shareholders & Ownership
Every disclosed holder of POST in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns POST
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 45,098,374 | 102.60% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 4,885,468 | 11.11% |
| Remaining | 6,027,037 | -13.71% |
| Registered funds (N-PORT, not summed) | 18,558,554 | 42.22% |
Shares outstanding: 43,956,805, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of POST
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
|
4,504,036 | ||
| 1.1 |
William P. Stiritz
13D
CIK 1052058 · Unknown · Mar 4, 2026
|
4,885,468 | ||
| 2 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,933,480 | ||
| 2.1 |
iShares Core S&P Mid-Cap ETF
Fund
S000004307 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,363,629 | ||
| 2.2 |
iShares S&P Mid-Cap 400 Value ETF
Fund
S000004309 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
199,765 | ||
| 2.3 |
iShares Russell Mid-Cap ETF
Fund
S000004338 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
166,806 | ||
| 2.4 |
iShares Russell 1000 Value ETF
Fund
S000004345 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
90,910 | ||
| 2.5 |
iShares Russell Mid-Cap Value ETF
Fund
S000004335 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
62,472 | ||
| 3 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,156,637 | ||
| 3.1 |
U.S. SMALL CAP VALUE PORTFOLIO
Fund
S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
786,320 | ||
| 3.2 |
U.S. Targeted Value Portfolio
Fund
S000000970 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
389,569 | ||
| 3.3 |
Dimensional U.S. Targeted Value ETF
Fund
S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
333,440 | ||
| 3.4 |
Dimensional US Small Cap Value ETF
Fund
S000075151 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
276,853 | ||
| 3.5 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
246,681 | ||
| 4 |
Route One Investment Company, L.P.
13F
CIK 1512171 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,950,568 | ||
| 5 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,455,999 | ||
| 6 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,175,658 | ||
| 6.1 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13G
CIK 2100121 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
2,211,589 | ||
| 7 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,784,517 | ||
| 8 |
LONDON CO OF VIRGINIA
13F
CIK 1259887 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,399,101 | ||
| 9 |
|
1,348,671 | ||
| 9.1 |
State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF
Fund
S000006986 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
201,881 | ||
| 9.2 |
State Street(R) SPDR(R) S & P 400(TM) Mid Cap Value ETF
Fund
S000006988 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
61,515 | ||
| 9.3 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
14,513 | ||
| 9.4 |
State Street(R) SPDR(R) US Small Cap Low Volatility Index ETF
Fund
S000039795 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
10,555 | ||
| 9.5 |
State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF
Fund
S000006973 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
10,050 | ||
| 10 |
NORGES BANK
13F
CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,309,435 | ||
| 11 |
Holocene Advisors, LP
13F
CIK 1700574 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,247,073 | ||
| 12 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,222,764 | ||
| 13 |
Clarkston Capital Partners, LLC
13F
CIK 1562855 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,205,915 | ||
| 13.1 |
Clarkston Partners Fund
Fund
S000050589 · Registered fund · Jun 30, 2026
ALPS SERIES TRUST, not summed
|
300,000 | ||
| 13.2 |
Clarkston Founders Fund
Fund
S000053615 · Registered fund · Jun 30, 2026
ALPS SERIES TRUST, not summed
|
90,000 | ||
| 13.3 |
Clarkston Fund
Fund
S000050590 · Registered fund · Jun 30, 2026
ALPS SERIES TRUST, not summed
|
44,000 | ||
| 14 |
|
1,167,906 | ||
| 15 |
MANUFACTURERS LIFE INSURANCE COMPANY, THE
13F
CIK 928047 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,154,963 | ||
| 15.1 |
Fundamental All Cap Core Fund
Fund
S000032685 · Registered fund · May 31, 2026
John Hancock Funds II, not summed
|
61,869 | ||
| 15.2 |
John Hancock Multifactor Small Cap ETF
Fund
S000059464 · Registered fund · Jun 30, 2026
John Hancock Exchange-Traded Fund Trust, not summed
|
17,628 | ||
| 15.3 |
John Hancock Fundamental All Cap Core ETF
Fund
S000082342 · Registered fund · Jun 30, 2026
John Hancock Exchange-Traded Fund Trust, not summed
|
542 | ||
| 16 |
VITALE ROBERT V
Insider
CIK 1540021 · Nov 18, 2025
Director, PRESIDENT & CEO, issuer-wide, not summed
|
1,101,738 | ||
| 17 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,012,592 | ||
| 18 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,011,823 | ||
| 18.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
87 | ||
| 19 |
Touchstone Funds Group Trust-Touchstone Mid Cap Fund
Fund
S000005842 · Registered fund · Jun 30, 2026
Touchstone Funds Group Trust, not summed
|
957,695 | ||
| 20 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
882,811 | ||
| 21 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
746,967 | ||
| 22 |
JPMorgan Value Advantage Fund
Fund
S000002796 · Registered fund · Jun 30, 2026
JPMorgan Trust I, not summed
|
724,449 | ||
| 23 |
JPMorgan Mid Cap Value Fund
Fund
S000004475 · Registered fund · Jun 30, 2026
J.P. Morgan Fleming Mutual Fund Group, Inc., not summed
|
686,525 | ||
| 24 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
639,671 | ||
| 25 |
DIAMOND HILL CAPITAL MANAGEMENT INC
13F
CIK 1217541 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
618,618 | ||
| 25.1 |
DIAMOND HILL SMALL-MID CAP FUND
Fund
S000012190 · Registered fund · Jun 30, 2026
Diamond Hill Funds, not summed
|
189,719 | ||
| 25.2 |
DIAMOND HILL MID CAP FUND
Fund
S000043502 · Registered fund · Jun 30, 2026
Diamond Hill Funds, not summed
|
18,662 | ||
| 26 |
Junto Capital Management LP
13F
CIK 1595880 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
589,457 | ||
| 27 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
559,670 | ||
| 28 |
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F
CIK 861177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
549,985 | ||
| 28.1 |
PACE Small/Medium Co Value Equity Investments
Fund
S000002973 · Registered fund · Jul 31, 2026
PACE SELECT ADVISORS TRUST, not summed
|
9,204 | ||
| 28.2 |
UBS U.S. Allocation Fund
Fund
S000002487 · Registered fund · May 31, 2026
UBS INVESTMENT TRUST, not summed
|
6,947 | ||
| 28.3 |
UBS GLOBAL ALLOCATION FUND
Fund
S000002979 · Registered fund · Jun 30, 2026
UBS FUNDS, not summed
|
2,336 | ||
| 29 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
516,577 | ||
| 29.1 |
Fidelity Stock Selector Small Cap Fund
Fund
S000005453 · Registered fund · Jul 31, 2026
Fidelity Capital Trust, not summed
|
235,865 | ||
| 29.2 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
218,846 | ||
| 29.3 |
Fidelity Mid Cap Index Fund
Fund
S000033637 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
153,906 | ||
| 29.4 |
Fidelity Series Small Cap Opportunities Fund
Fund
S000015587 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
|
116,306 | ||
| 29.5 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
80,054 | ||
| 30 |
Fisher Asset Management, LLC
13F
CIK 850529 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
481,429 | ||
| 31 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
457,075 | ||
| 32 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
455,118 | ||
| 32.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
202,546 | ||
| 32.2 |
Schwab U.S. Mid-Cap ETF
Fund
S000026635 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
114,446 | ||
| 32.3 |
Schwab Fundamental U.S. Large Company ETF
Fund
S000040877 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
43,632 | ||
| 32.4 |
Schwab Fundamental U.S. Large Company Index Fund
Fund
S000016766 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
25,149 | ||
| 32.5 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
25,138 | ||
| 33 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
374,967 | ||
| 33.1 |
Mid Cap Index Fund
Fund
S000001273 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
25,946 | ||
| 33.2 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
6,636 | ||
| 33.3 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
4,219 | ||
| 34 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
364,398 | ||
| 34.1 |
AQR Macro Opportunities Fund
Fund
S000044524 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
19,019 | ||
| 34.2 |
AQR Style Premia Alternative Fund
Fund
S000042050 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
7,325 | ||
| 34.3 |
AQR Alternative Risk Premia Fund
Fund
S000058563 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
5,934 | ||
| 35 |
Fundamental All Cap Core Trust
Fund
S000008296 · Registered fund · Jun 30, 2026
John Hancock Variable Insurance Trust, not summed
|
353,089 | ||
| 36 |
PYA Waltman Capital, LLC
13F
CIK 1800135 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
339,643 | ||
| 37 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
328,145 | ||
| 38 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
297,554 | ||
| 38.1 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
1,998 | ||
| 38.2 |
Goldman Sachs MarketBeta U.S. 1000 Equity ETF
Fund
S000075322 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust II, not summed
|
1,467 | ||
| 38.3 |
Goldman Sachs MarketBeta(R) Russell 1000 Value Equity ETF
Fund
S000083006 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
612 | ||
| 39 |
Quantinno Capital Management LP
13F
CIK 1759654 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
295,355 | ||
| 40 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
287,701 | ||
| 40.1 |
Invesco S&P MidCap Low Volatility ETF
Fund
S000030966 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
72,854 | ||
| 40.2 |
Invesco S&P MidCap 400 Revenue ETF
Fund
S000064595 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
38,719 | ||
| 40.3 |
Invesco BuyBack AchieversTM ETF
Fund
S000013111 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
35,736 | ||
| 40.4 |
Invesco Food & Beverage ETF
Fund
S000003027 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
30,939 | ||
| 40.5 |
Invesco S&P Midcap 400 Pure Value ETF
Fund
S000060796 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
25,640 | ||
| 41 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
283,969 | ||
| 42 |
|
279,275 | ||
| 43 |
VICTORY CAPITAL MANAGEMENT INC
13F
CIK 1040188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
273,278 | ||
| 43.1 |
VictoryShares US Small Mid Cap Value Momentum ETF
Fund
S000065161 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
|
84,791 | ||
| 43.2 |
Victory Integrity Small/Mid-Cap Value Fund
Fund
S000046398 · Registered fund · Jun 30, 2026
Victory Portfolios, not summed
|
19,010 | ||
| 43.3 |
Victory Extended Market Index Fund
Fund
S000012941 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
|
4,462 | ||
| 44 |
T. Rowe Price Investment Management, Inc.
13F
CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
269,256 | ||
| 45 |
Calvert Small Cap Fund
Fund
S000008714 · Registered fund · Jun 30, 2026
Calvert Impact Fund, Inc., not summed
|
269,180 | ||
| 46 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
266,945 | ||
| 46.1 |
BNY Mellon US Small Cap Core Equity ETF
Fund
S000067262 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
|
1,515 | ||
| 47 |
VANGUARD CONSUMER STAPLES INDEX FUND
Fund
S000004447 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
|
266,399 | ||
| 48 |
JPMorgan Mid Cap Equity Fund
Fund
S000002793 · Registered fund · Jun 30, 2026
JPMorgan Trust I, not summed
|
264,062 | ||
| 49 |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F
CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
258,205 | ||
| 50 |
VANGUARD STRATEGIC EQUITY FUND
Fund
S000002593 · Registered fund · Jun 30, 2026
VANGUARD HORIZON FUNDS, not summed
|
258,142 |
67 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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