Dimensional Fund Advisors LP Increases Stake in Post Holdings Inc to 6.4%

Dimensional Fund Advisors LP filed a Schedule 13G/A on April 9, 2026, disclosing a 6.4% ownership stake in Post Holdings Inc (POST). As of the event date on March 31, 2026, Dimensional Fund Advisors LP reported beneficial ownership of 3,071,875 shares of common stock. This filing represents an increase from the previously reported 0.0% ownership, indicating a new significant position for the firm. Dimensional Fund Advisors LP serves as an investment adviser to various registered investment companies, trusts, and separate accounts (the "Funds"). While Dimensional may be deemed a beneficial owner due to its voting and investment power, it disclaims actual beneficial ownership, noting that the securities are owned by the Funds themselves. The filing indicates that 3,019,448 shares have sole voting power, while all 3,071,875 shares have sole dispositive power. The acquisition was made in the ordinary course of business and not for the purpose of influencing or changing control of the issuer. No single Fund's interest exceeds 5% of the class of securities.