SCHEDULE 13D/A

PLUG PWR INC COM NEW

Common Stock, par value $0.01 per share · CUSIP: 72919P202

Event date: 2025-06-06

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Grove Energy Capital LLCReported CIK 0001844540

  Shares: 54,966,188.00 · Class: 4.8%

• Plutus Capital NY, Inc.

  Shares: 0.00 · Class: 4.8%

• PassKey, Inc.

  Shares: 54,966,188.00 · Class: 4.8%

• PNES Investments, LLC

  Shares: 54,966,188.00 · Class: 4.8%

• PRISM Energy International Americas, Inc. (formerly known as SK E&S Americas, Inc.)

  Shares: 54,966,188.00 · Class: 4.8%

• SK Innovation Co., Ltd.

  Shares: 54,966,188.00 · Class: 4.8%

• SK Inc. (formerly known as SK Holdings Co., Ltd.)

  Shares: 54,966,188.00 · Class: 4.8%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.