Vanguard Capital Management Discloses New 5.04% Passive Stake in Magnite Inc (MGNI)

Vanguard Capital Management LLC filed a Schedule 13G on April 30, 2026, disclosing a new 5.04% stake in Magnite Inc (MGNI). As of the event date of March 31, 2026, Vanguard beneficially owns 7,283,329 shares of Magnite's common stock. The filing indicates that Vanguard holds sole dispositive power over all 7,283,329 shares, while possessing sole voting power over 1,092,926 shares. This position was previously reported as zero, marking a significant entry into the company's equity by the investment adviser. The shares were acquired in the ordinary course of business and not for the purpose of changing or influencing the control of the issuer. The filing also notes that various Vanguard affiliates, including Vanguard Asset Management Limited and Vanguard Global Advisers, LLC, may have interests in these securities. No other single person's interest in these reported securities exceeds 5% of the class. Magnite Inc is headquartered in New York, NY, and operates within the advertising technology sector.