Company · Ownership research

Post Holdings, Inc. POST

CIK 0001530950 · CUSIP 737446104

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 737446104 (POST), not CUSIP 737446954 (POST), CUSIP 737446904 (POST), and does not merge CUSIPs.

This page lists the top 20 of 428 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$393.44M 3,979,802 shares	0.01%	-224.31K(-5.30%)Reduced	SEC filing ↗ May 13, 2026	▾
02	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$303.68M 3,071,875 shares	0.06%	+114.68K(+3.90%)Added	SEC filing ↗ May 7, 2026	▾
03	Route One Investment Company, L.P. CIK 1512171 · View history	$291.69M 2,950,568 shares	12.77%	-185.90K(-5.90%)Reduced	SEC filing ↗ May 15, 2026	▾
04	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$259.41M 2,668,814 shares	0.02%	-306.87K(-10.30%)Reduced	SEC filing ↗ May 13, 2026	▾
05	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$240.38M 2,431,497 shares	0.01%	—	SEC filing ↗ May 8, 2026	▾
06	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$185.27M 1,874,037 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
07	Holocene Advisors, LP CIK 1700574 · View history	$174.65M 1,766,642 shares	0.42%	+609.10K(+52.60%)Added	SEC filing ↗ May 15, 2026	▾
08	LONDON CO OF VIRGINIA CIK 1259887 · View history	$145.98M 1,476,638 shares	0.90%	-110.00K(-6.90%)Reduced	SEC filing ↗ May 15, 2026	▾
09	STATE STREET CORP CIK 93751 · View history	$140.60M 1,422,219 shares	0.00%	-58.68K(-4.00%)Reduced	SEC filing ↗ May 15, 2026	▾
10	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$137.62M 1,392,048 shares	0.11%	+666.06K(+91.70%)Added	SEC filing ↗ May 15, 2026	▾
11	MANUFACTURERS LIFE INSURANCE COMPANY, THE CIK 928047 · View history	$124.92M 1,263,594 shares	0.11%	-74.15K(-5.50%)Reduced	SEC filing ↗ May 15, 2026	▾
12	Clarkston Capital Partners, LLC CIK 1562855 · View history	$117.95M 1,193,067 shares	9.00%	-1.68M(-58.40%)Reduced	SEC filing ↗ May 14, 2026	▾
13	UBS Group AG CIK 1610520 · View history	$103.25M 1,044,362 shares	0.02%	+425.97K(+68.90%)Added	SEC filing ↗ May 5, 2026	▾
14	FMR LLC CIK 315066 · View history	$82.17M 831,169 shares	0.00%	-87.86K(-9.60%)Reduced	SEC filing ↗ May 15, 2026	▾
15	DIAMOND HILL CAPITAL MANAGEMENT INC CIK 1217541 · View history	$80.68M 816,143 shares	0.50%	-77.08K(-8.60%)Reduced	SEC filing ↗ May 7, 2026	▾
16	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$79.78M 806,826 shares	0.00%	-74.17K(-8.40%)Reduced	SEC filing ↗ May 15, 2026	▾
17	MORGAN STANLEY CIK 895421 · View history	$78.64M 795,423 shares	0.00%	-114.57K(-12.60%)Reduced	SEC filing ↗ May 15, 2026	▾
18	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$68.06M 688,419 shares	0.05%	-60.74K(-8.10%)Reduced	SEC filing ↗ May 15, 2026	▾
19	Invesco Ltd. CIK 914208 · Amended · View history	$55.37M 560,132 shares	0.01%	-27.64K(-4.70%)Reduced	SEC filing ↗ May 12, 2026	▾
20	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$46.10M 466,298 shares	0.01%	-32.30K(-6.50%)Reduced	SEC filing ↗ May 15, 2026	▾

Showing 20 / 428 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

428

Cancelled or null records excluded

Disclosed shares

45,503,202

Not deduplicated across managers

Disclosed value

$4.49B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Post Holdings, Inc. · Q1 2026

Explore all 428 reporting institutions.

This page includes 20 of 428 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.