Institutional Ownership
Post Hldgs Inc
CUSIP 737446104COMPOSTQ1 2026
13D / 13G Filings
37
Schedule 13D/13G on record
Beneficial Filers
14
Distinct reporting persons
Largest Stake
11.2%
Max % of class reported
Institutional Holders
415
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
37 filings · latest Mar 5, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Mar 5, 2026 | William P. Stiritz | 13D/A | 10.3% | — | SEC |
| 2 | Oct 15, 2025 | William P. Stiritz | 13D/A | 9.3% | — | SEC |
| 3 | Oct 9, 2025 | Dimensional Fund Advisors LP | 13G | 5.2% | 2.81M | SEC |
| 4 | Sep 8, 2025 | The Vanguard Group | 13G/A | 10.3% | 5.60M | SEC |
| 5 | Aug 13, 2025 | Route One Investment Company, L.P. | 13G/A | 6.1% | 3.41M | SEC |
| 6 | Jul 15, 2025 | Dimensional Fund Advisors LP | 13G/A | 4.8% | 2.70M | SEC |
| 7 | Apr 30, 2025 | The Vanguard Group | 13G/A | 9.6% | 5.42M | SEC |
| 8 | Feb 14, 2025 | William P. Stiritz | 13D/A | 8.3% | — | SEC |
| 9 | Nov 13, 2024 | Route One Investment Company, L.P. | 13G/A | 7.5% | 4.37M | SEC |
| 10 | Nov 12, 2024 | Blackrock, Inc. | 13G/A | 7.3% | 4.26M | SEC |
27 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Post Hldgs Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 3.98M | $393.44M |
| 2 | Dimensional Fund Advisors LP | 3.07M | $303.68M |
| 3 | Route One Investment Company, L.P. | 2.95M | $291.69M |
| 4 | Jpmorgan Chase & Co | 2.67M | $259.41M |
| 5 | Holocene Advisors, LP | 1.77M | $174.65M |
| 6 | London Co Of Virginia | 1.48M | $145.98M |
| 7 | State Street Corp | 1.42M | $140.60M |
| 8 | Two Sigma Investments, LP | 1.39M | $137.62M |
| 9 | Manufacturers Life Insurance Company, The | 1.26M | $124.92M |
| 10 | Clarkston Capital Partners, LLC | 1.19M | $117.95M |