NPEH, LLC Sells NET Power Inc. Class A Common Stock

On December 19, 2025, December 22, 2025, and December 23, 2025, NPEH, LLC, a ten percent owner of NET Power Inc., reported the sale of its Class A Common Stock. Specifically, 100,000 shares were sold on December 19th at a weighted average price of $2.3431, leaving 2,450,000 shares. On December 22nd, another 100,000 shares were sold at a weighted average price of $2.2646, reducing the holdings to 2,350,000 shares. The final reported sale occurred on December 23rd, with 130,000 shares sold at a weighted average price of $2.1666, resulting in 2,220,000 shares remaining. The sales were executed directly, and the prices reported reflect weighted average prices, with specific price ranges detailed in accompanying footnotes.