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Post Holdings POST

US equityMarket cap rank #2431Packaged Foods
$72.68 +$0.12 (+0.17%)
Pre-market · Oct 6, 5:40 am ET · After hours $72.68 0.00%
Open$72.44
Prev close$72.56
Day range$72.11 – $73.47
Volume875.3K
Market cap$3.19B
P/E (TTM)13.2
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership104.6%+3.33 pts vs. prior quarter
Institutions holding485+0 vs. prior quarter
Insider trades (recent)45 buys / 5 sellsNet buying
Short interest13.40% of floatDays to cover 6.2 · as of 15 Sep 2026
Short-sale volume share24.1%5-day average of daily volume

Short-sale volume as % of daily volume

18%23%27%32%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$7.74M (5 inflow days, 15 outflow days).

The five largest holders on file together own 38.0% of shares outstanding.

Largest holders

  • William Stiritz10.25%
  • BlackRock8.95%
  • Dimensional Fund Advisors7.18%
  • Route One Investment Company, L.P.6.71%
  • Vanguard Portfolio Management, LLC4.95%
  • J.P. Morgan Asset Management, Inc.4.93%
  • Vanguard Capital Management, LLC4.63%
  • UBS Asset Management3.91%

By investor type

  • Mutual Fund74.41%
  • Hedge Fund19.78%
  • Individual/Insider14.78%
  • Public Company4.08%
  • Sovereign Wealth Fund2.98%
  • Private Company1.70%
  • Government Pension Fund1.23%
  • Family Office/Trust0.20%

Reported short interest has risen from 12.99% to 13.40% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 5,888,798 13.4% 6.2
31 Aug 2026 5,944,559 13.5% 6.7
14 Aug 2026 6,408,651 14.6% 5.1
31 Jul 2026 7,064,057 15.6% 8.4
15 Jul 2026 6,134,017 13.5% 6.9
30 Jun 2026 5,887,804 13.0% 6.6

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