Company: NPWR-WT
Filing Date: 2025-03-10
Form Type: 10-K
Source: 0001845437-25-000008
Chunk: 41

Company: NET Power Inc.
Filing Date: 2025-03-10
Form: 10-K
Item: Item 16
Chunk 41
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 OpCo Unit Awards (Predecessor and Successor)As of December 31, 2024, there was $376 thousand of unrecognized share-based compensation expense related to unvested Class A OpCo Units granted under previous programs, which the Company expects to recognize over a weighted average period of three years.The following table summarizes the activity of employee equity awards comprised of Class A OpCo Units and the corresponding quantity of shares of Class B Common Stock for the periods presented:QuantityCalculated ValueSuccessorPredecessorSuccessorPredecessorPeriod FromPeriod FromPeriod FromPeriod FromJune 8, 2023January 1, 2023June 8, 2023January 1, 2023Year EndedthroughthroughYear Endedthroughthrough$ in thousands December 31, 2024December 31, 2023June 7, 2023 December 31, 2024December 31, 2023June 7, 2023Unvested, beginning of period848,4151,895,122226,494$5.21 $4.95 $63.25 Granted———$— $— $— Forfeited—(324,568)—$— $5.66 $— Vested(606,745)(30,069)(107,418)$5.03 $4.32 $63.18 Accelerated—(692,070)—$— $4.32 $— Unvested, end of period241,670848,415119,076$5.66 $5.21 $63.32 Restricted Stock Units (Successor)During the year ended December 31, 2024 (Successor), there were 534,668 restricted stock units (“RSU”) awarded under the terms of the Net Power Inc. 2023 Omnibus Incentive Plan. As of December 31, 2024, there was $6.8 million of unrecognized share-based compensation expense related to unvested RSUs, which the Company expects to recognize over a weighted average period of three years. Generally, RSUs granted to employees and the majority of executives either cliff-

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Audited Financial Statements of NET Power Inc. - Table of Contents

vest on the three-year anniversary of the date of grant or vest ratably on each anniversary of the date of grant over a three-year period. Annual awards granted to