SCHEDULE: Route One Boosts Stake in Post Holdings to 6.1%

Route One Investment Company and its affiliates have increased their beneficial ownership in Post Holdings, Inc. to 6.1% of outstanding common stock.

Summary

• Route One Investment Company, L.P., along with its affiliates ROIC, LLC, Route One Investment Company, LLC, and control persons William F. Duhamel, Jr. and Jason E. Moment, collectively hold beneficial ownership of 3,413,918 shares of Post Holdings, Inc. Common Stock.
• This aggregate ownership represents 6.1% of Post Holdings, Inc.'s outstanding Common Stock.
• The percentage is calculated based on 55,718,597 shares of Common Stock outstanding as of May 5, 2025, as reported in Post Holdings, Inc.'s Form 10-Q for the quarter ended March 31, 2025.
• Route One Offshore Master Fund, L.P., an investment fund advised by Route One, beneficially owns 2,354,619 shares, representing 4.2% of the class.
• The shares are held in the ordinary course of business and not for the purpose of changing or influencing the control of the issuer.

Sentiment

Score: 6

Explanation: The filing indicates a significant and continued institutional investment, which is generally viewed positively as a sign of confidence, though it is purely an ownership disclosure without operational or financial performance details.

Positives

• Increased institutional ownership by Route One Investment Company and its affiliates signals a vote of confidence in Post Holdings, Inc.'s long-term prospects.
• The significant stake of 6.1% indicates a material commitment from a reputable investment firm.

Industry Context

This filing reflects continued institutional interest in the consumer packaged goods sector, particularly in established food companies like Post Holdings, Inc. Large investment firms often take significant stakes in companies they believe are undervalued or have strong long-term growth potential within stable industries.

Stakeholder Impact

• Shareholders may perceive the increased institutional ownership as a positive signal, potentially leading to increased investor confidence and stability in the stock.

Key Dates

Keywords

Post Holdings, Route One Investment Company, Beneficial Ownership, Schedule 13G, Common Stock, Institutional Investment, Equity Stake