Vanguard Capital Management Acquires 5.23% Stake in Plug Power Inc.

Vanguard Capital Management LLC filed a Schedule 13G on April 30, 2026, disclosing a new 5.23% ownership stake in Plug Power Inc. (PLUG). As of the event date on March 31, 2026, Vanguard beneficially owns 73,043,212 shares of common stock. The filing indicates that Vanguard holds sole dispositive power over all 73,043,212 shares, while maintaining sole voting power over 10,492,774 shares. This position represents a significant increase from a previous 0.0% holding, crossing the 5% regulatory threshold. The securities were acquired in the ordinary course of business and not for the purpose of influencing or changing control of the issuer. The reported holdings include shares managed by various Vanguard affiliates, including Vanguard Asset Management Limited and Vanguard Global Advisers, LLC. No single person’s interest in the reported securities exceeds 5% of the total shares outstanding. This filing marks Vanguard's emergence as a major institutional shareholder in the hydrogen fuel cell company.