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POST · Post Holdings, Inc. · Holdings

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Market Cap
$3.53B
Shares
43.96M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 418
Total Value: $4,017,732,249
Total Shares: 45,521,631
Showing 1–100 of 425 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 418 13F filers · Δ vs Mar 31, 2026
Top Holder
8.6%
Sep 2023 → Jun 2026 · range 8.6% – 10.9%
−0.1 pts
Top 5
32.2%
Sep 2023 → Jun 2026 · range 32.2% – 40.0%
−0.9 pts
Top 10
47.8%
Sep 2023 → Jun 2026 · range 47.8% – 59.0%
−2.7 pts
HHI
321
Sep 2023 → Jun 2026 · range 321 – 448
Broadly held−18

Quarterly Activity

vs Mar 31, 2026
New
66
Increased
109
Decreased
182
Sold Out
78
Unchanged
61
Holder count: -12
Institutional value: -10.9%
Shares held: -0.3%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 425
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1530950 CUSIP 737446104 13F (30d) 186 filings 183 filers Visit website Investor relations