Post Holdings Inc (POST)
Who owns Post Holdings Inc (POST)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 78.1% of the shares are freely tradable; institutional investors hold 104.6%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Group Inc | 11.41 | 5,172,519 | -1.9 | 12/31/2025 |
| BlackRock Inc | 8.78 | 3,979,802 | -5.3 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 6.78 | 3,071,875 | +3.9 | 03/31/2026 |
| Route One Investment Co, LP | 6.51 | 2,950,568 | -5.9 | 03/31/2026 |
| JPMorgan Chase & Co | 5.89 | 2,668,814 | -10.3 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.36 | 2,431,497 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.13 | 1,874,037 | +0.0 | 03/31/2026 |
| Holocene Advisors, LP | 3.90 | 1,766,642 | +52.6 | 03/31/2026 |
| London Company of Virginia | 3.26 | 1,476,638 | -6.9 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.16 | 1,431,650 | +0.0 | 05/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.