Security Snapshot

Post Holdings, Inc. - Common Stock (POST) Institutional Ownership

CUSIP: 737446104

13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

409

Shares (Excl. Options)

45,293,010

Price

$88.26

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Latest holder snapshot 5 signals
Portfolio coverage rank
0.01%
Share change
-137,122
Value change
-$21,206,907
Number of holders
409
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
45,412,505
SEC-reported price per share
$92.96
Insider filing price
$92.96
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • POST - Post Holdings, Inc. - Common Stock is tracked under CUSIP 737446104.
  • 409 institutions reported positions in Q2 2026.
  • 6 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 427 to 409 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $4,493,529,100 to $4,002,706,618.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 409 institutions filings for Q2 2026.

Open SEC evidence

Security key

737446104

Latest holder period

Q2 2026

13F holders

409

13D/G owners

6

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
6
Security
POST
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
STIRITZ WILLIAM P 10% +11% $539,404,522 +$276,025 4,885,468 +0.05% William P. Stiritz 04 Mar 2026
DIMENSIONAL FUND ADVISORS LP 6.4% +24% $303,685,562 +$25,649,425 3,071,875 +9.2% Dimensional Fund Advisors LP 31 Mar 2026
Route One Investment Company, L.P. 6.5% +6.7% $294,643,720 -$46,270,131 2,950,568 -14% Route One Investment Company, L.P. 31 Mar 2026
JPMORGAN CHASE & CO 5.1% $299,943,791 2,790,694 JPMORGAN CHASE & CO. 30 Sep 2025
VANGUARD PORTFOLIO MANAGEMENT LLC 4.9% -5% $190,815,899 -$21,442,737 2,211,589 -10% Vanguard Portfolio Management 30 Jun 2026
Clarkston Capital Partners, LLC 2.6% $119,139,671 1,193,067 Clarkston Capital Partners, LLC 31 Mar 2026

As of 30 Jun 2026, 409 institutional investors reported holding 45,293,010 shares of Post Holdings, Inc. - Common Stock (POST). This represents 100% of the company’s total 45,412,505 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
72%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 8.7% 3,933,480 -1.2% 0.01% $347,168,944
DIMENSIONAL FUND ADVISORS LP 7% 3,156,637 +2.8% 0.05% $278,611,718
Route One Investment Company, L.P. 6.5% 2,950,568 0% 11% $260,417,132
JPMORGAN CHASE & CO 5.4% 2,455,999 -8% 0.01% $220,535,652
VANGUARD PORTFOLIO MANAGEMENT LLC 4.8% 2,175,658 -11% 0.01% $192,023,575
VANGUARD CAPITAL MANAGEMENT LLC 3.9% 1,784,517 -4.8% 0% $157,501,470
LONDON CO OF VIRGINIA 3.1% 1,399,101 -5.3% 0.7% $123,482,273
STATE STREET CORP 3% 1,348,671 -5.2% 0% $119,033,702
NORGES BANK 2.9% 1,309,435 0.01% $115,570,733
Holocene Advisors, LP 2.7% 1,247,073 -29% 0.25% $110,066,663
Clarkston Capital Partners, LLC 2.7% 1,205,915 +1.1% 9% $106,434,058
UBS Group AG 2.6% 1,167,906 +12% 0.02% $103,079,383
MANUFACTURERS LIFE INSURANCE COMPANY, THE 2.5% 1,154,963 -8.6% 0.08% $101,937,034
CITADEL ADVISORS LLC 2.2% 1,012,592 +363% 0.05% $89,371,370
MORGAN STANLEY 2.2% 1,011,823 +27% 0% $89,303,721
GEODE CAPITAL MANAGEMENT, LLC 1.6% 746,967 -7.4% 0% $65,943,999
TWO SIGMA INVESTMENTS, LP 1.4% 639,671 -54% 0.04% $56,457,362
Diamond Hill Capital Management, LLC (Investment Advisor) 1.4% 618,618 -24% 0.44% $54,599,225
Junto Capital Management LP 1.3% 589,457 +45% 0.96% $52,025,475
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 1.2% 549,985 +279% 0.01% $48,541,675
FMR LLC 1.1% 516,577 -38% 0% $45,593,072
Fisher Asset Management, LLC 1.1% 481,429 +5% 0.01% $42,490,958
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1% 455,118 -2.4% 0.01% $40,168,715
NORTHERN TRUST CORP 0.83% 374,967 -3.5% 0% $33,094,588
AQR CAPITAL MANAGEMENT LLC 0.8% 364,398 +4.1% 0.01% $32,023,296

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 45,293,010 $4,002,706,618 -$21,206,907 $88.26 409
2026 Q1 45,498,972 $4,493,529,100 -$189,640,293 $98.86 427
2025 Q4 47,777,483 $4,732,518,126 -$98,905,952 $99.05 408
2025 Q3 48,461,471 $5,208,231,530 -$285,368,589 $107.48 414
2025 Q2 51,180,494 $5,580,180,374 -$123,308,613 $109.03 430
2025 Q1 52,282,258 $6,082,503,542 -$25,916,874 $116.36 414
2024 Q4 52,648,311 $6,025,308,840 -$8,547,101 $114.46 411
2024 Q3 52,354,306 $6,060,064,167 -$82,537,003 $115.75 406
2024 Q2 53,337,584 $5,556,086,171 -$112,400,660 $104.16 379
2024 Q1 54,458,137 $5,786,423,666 -$288,634,508 $106.28 373
2023 Q4 57,341,200 $5,050,867,354 +$290,408,223 $88.06 360
2023 Q3 54,060,608 $4,635,108,133 +$182,797,314 $85.74 355
2023 Q2 51,826,163 $4,491,446,215 -$84,990,381 $86.65 326
2023 Q1 52,598,291 $4,726,921,601 +$26,109,668 $89.87 348
2022 Q4 52,444,057 $4,733,431,259 -$147,913,901 $90.26 353
2022 Q3 54,274,267 $4,446,046,057 -$173,019,475 $81.91 313
2022 Q2 53,985,185 $4,445,936,069 -$191,349,589 $82.35 301
2022 Q1 56,982,563 $3,947,662,471 +$26,531,907 $69.26 291
2021 Q4 56,074,842 $6,320,968,667 -$151,147,394 $112.73 318
2021 Q3 57,356,293 $6,317,996,205 -$151,969,026 $110.16 311
2021 Q2 58,734,178 $6,369,880,566 +$272,552,283 $108.47 319
2021 Q1 56,224,749 $5,944,851,132 -$132,980,512 $105.72 308
2020 Q4 57,496,086 $5,806,969,116 -$170,579,262 $101.01 303
2020 Q3 59,299,599 $5,092,267,564 -$40,845,162 $86.00 294
2020 Q2 59,734,615 $5,233,827,704 -$131,514,477 $87.62 299
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