Plug Power 4: Marsh Andrew bought 3,688 shares of Common Stock at $2.26 o… (Apr 10, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-04-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: PLUG POWER INC (PLUG) CIK: 0001093691 --- Reporting Owner --- Name: Marsh Andrew CIK: 0001431827 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-04-01 | Code: A (Grant or award) Shares: +3,688 | Price: $2.26 Total Value: $8,334.88 Shares Owned After: 853,378 | Ownership: D (Direct) Footnotes: [F1] Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Director Compensation Plan. [F2] The Reporting Person's total holdings were previously reported as 930,546 shares. Such amount was overstated because prior reports reflected gross shares of common stock received as compensation pursuant to the Reporting Person's election to receive shares in lieu of cash compensation rather than net shares received after withholding for taxes. The Reporting Person's holdings have been revised to reflect net shares received after withholding for taxes, resulting in a reduction of 80,856 shares to 849,690 shares. After giving effect to the transaction reported herein, the Reporting Person's total holdings are 853,378 shares. This correction relates solely to prior reporting and does not reflect any additional or previously unreported transactions by the Reporting Person. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F3] The Reporting Person holds 121,878 shares of common stock in Plug Power Inc.'s 401(k) plan. The information in this report is based on a plan statement as of April 9, 2026. --- Footnotes (Complete Index) --- F1: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Director Compensation Plan. F2: The Reporting Person's total holdings were previously reported as 930,546 shares. Such amount was overstated because prior reports reflected gross shares of common stock received as compensation pursuant to the Reporting Person's election to receive shares in lieu of cash compensation rather than net shares received after withholding for taxes. The Reporting Person's holdings have been revised to reflect net shares received after withholding for taxes, resulting in a reduction of 80,856 shares to 849,690 shares. After giving effect to the transaction reported herein, the Reporting Person's total holdings are 853,378 shares. This correction relates solely to prior reporting and does not reflect any additional or previously unreported transactions by the Reporting Person. F3: The Reporting Person holds 121,878 shares of common stock in Plug Power Inc.'s 401(k) plan. The information in this report is based on a plan statement as of April 9, 2026. --- Signature --- /s/ /s/ Gerard L. Conway Jr., Attorney-in-Fact (2026-04-10)