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NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":3000000,"source":{"system":"sec-edgar","filing":"0001104659-26-061387","document":"tm2614586-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926061387/tm2614586-2_4seq1.xml","form_type":"4"}},{"id":780270,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Units of NET Power Operations LLC","published_at":"2026-05-13T20:23:25.000Z","date":"2026-03-06","kind":"exercise","planned":false,"acquired":false,"shares":3000000,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the \"Original Form 4\") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II."},{"field":"date","element":"transactionDate","label":"F3","text":"This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the \"Original Form 4\") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the \"Original Form 4\") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the \"Original Form 4\") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the \"Original Form 4\") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II."}],"balance_after":17729880,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3000000},"source":{"system":"sec-edgar","filing":"0001104659-26-060274","document":"tm2614507-2_4aseq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926060274/tm2614507-2_4aseq1.xml","form_type":"4/A","original_submission_date":"2026-03-10"}},{"id":780269,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2026-05-13T20:23:25.000Z","date":"2026-03-06","kind":"other","planned":false,"acquired":false,"shares":3000000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"For each Class A Unit of Net Power Operations LLC, NPEH owns a corresponding share of Class B Common Stock of the Issuer. Upon the exchange of 3,000,000 Class A Units of Net Power Operations LLC, an equal number of shares of Class B Common Stock of the Issuer held by NPEH, which have no economic value, were cancelled."}],"balance_after":17729880,"source":{"system":"sec-edgar","filing":"0001104659-26-060274","document":"tm2614507-2_4aseq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926060274/tm2614507-2_4aseq1.xml","form_type":"4/A","original_submission_date":"2026-03-10"}},{"id":780268,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-05-13T20:23:25.000Z","date":"2026-03-06","kind":"exercise","planned":false,"acquired":true,"shares":3000000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. 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Upon the exchange of 3,000,000 Class A Units of Net Power Operations LLC, an equal number of shares of Class B Common Stock of the Issuer held by NPEH, which have no economic value, were cancelled."}],"balance_after":17729880,"source":{"system":"sec-edgar","filing":"0001104659-26-025969","document":"tm268392-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926025969/tm268392-1_4seq1.xml","form_type":"4"}},{"id":850101,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-10T22:01:11.000Z","date":"2026-03-06","kind":"exercise","planned":false,"acquired":true,"shares":3000000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock."}],"balance_after":3400000,"source":{"system":"sec-edgar","filing":"0001104659-26-025969","document":"tm268392-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926025969/tm268392-1_4seq1.xml","form_type":"4"}},{"id":857663,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-05T23:16:18.000Z","date":"2026-03-03","kind":"sale","planned":false,"acquired":false,"shares":100000,"price":2.0425,"value":204250.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.01 to $2.015 NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":400000,"source":{"system":"sec-edgar","filing":"0001104659-26-024242","document":"tm268112-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926024242/tm268112-2_4seq1.xml","form_type":"4"}},{"id":873334,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-02T23:01:50.000Z","date":"2026-03-02","kind":"sale","planned":false,"acquired":false,"shares":79858,"price":2.0508,"value":163772.7864,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.00 to $2.10. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":500000,"source":{"system":"sec-edgar","filing":"0001104659-26-022378","document":"tm267758-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926022378/tm267758-2_4seq1.xml","form_type":"4"}},{"id":873333,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-02T23:01:50.000Z","date":"2026-02-27","kind":"sale","planned":false,"acquired":false,"shares":4744,"price":2.0003,"value":9489.4232,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.00 to $2.005. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":579858,"source":{"system":"sec-edgar","filing":"0001104659-26-022378","document":"tm267758-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926022378/tm267758-2_4seq1.xml","form_type":"4"}},{"id":873332,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-02T23:01:50.000Z","date":"2026-02-26","kind":"sale","planned":false,"acquired":false,"shares":1881,"price":2,"value":3762.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at a price of $2.00. NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":584602,"source":{"system":"sec-edgar","filing":"0001104659-26-022378","document":"tm267758-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926022378/tm267758-2_4seq1.xml","form_type":"4"}},{"id":887416,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-23T23:01:10.000Z","date":"2026-02-20","kind":"sale","planned":false,"acquired":false,"shares":63517,"price":2.0346,"value":129231.6882,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.00 to $2.1175. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":586483,"source":{"system":"sec-edgar","filing":"0001104659-26-018703","document":"tm267082-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926018703/tm267082-2_4seq1.xml","form_type":"4"}},{"id":887415,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-23T23:01:10.000Z","date":"2026-02-19","kind":"sale","planned":false,"acquired":false,"shares":125000,"price":2.1411,"value":267637.5,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.10 to $2.17. NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":650000,"source":{"system":"sec-edgar","filing":"0001104659-26-018703","document":"tm267082-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926018703/tm267082-2_4seq1.xml","form_type":"4"}},{"id":895491,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-18T23:43:37.000Z","date":"2026-02-18","kind":"sale","planned":false,"acquired":false,"shares":75000,"price":2.0692,"value":155190.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.045 to $2.115. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":775000,"source":{"system":"sec-edgar","filing":"0001104659-26-017182","document":"tm266743-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926017182/tm266743-1_4seq1.xml","form_type":"4"}},{"id":895490,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-18T23:43:37.000Z","date":"2026-02-13","kind":"sale","planned":false,"acquired":false,"shares":100000,"price":2.1414,"value":214140.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.10 to $2.215. NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":850000,"source":{"system":"sec-edgar","filing":"0001104659-26-017182","document":"tm266743-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926017182/tm266743-1_4seq1.xml","form_type":"4"}},{"id":907039,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-12T23:24:19.000Z","date":"2026-02-12","kind":"sale","planned":false,"acquired":false,"shares":150000,"price":2.0307,"value":304605.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.00 to $2.07. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":950000,"source":{"system":"sec-edgar","filing":"0001104659-26-014477","document":"tm266219-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926014477/tm266219-1_4seq1.xml","form_type":"4"}},{"id":907038,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-12T23:24:19.000Z","date":"2026-02-11","kind":"sale","planned":false,"acquired":false,"shares":60000,"price":2.0225,"value":121350.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.00 to $2.05. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":1100000,"source":{"system":"sec-edgar","filing":"0001104659-26-014477","document":"tm266219-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926014477/tm266219-1_4seq1.xml","form_type":"4"}},{"id":907037,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-12T23:24:19.000Z","date":"2026-02-10","kind":"sale","planned":false,"acquired":false,"shares":40000,"price":2.0803,"value":83212.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $2.03 to $2.115. NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":1160000,"source":{"system":"sec-edgar","filing":"0001104659-26-014477","document":"tm266219-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465926014477/tm266219-1_4seq1.xml","form_type":"4"}},{"id":924385,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-02T22:10:02.000Z","date":"2026-01-29","kind":"sale","planned":false,"acquired":false,"shares":54780,"price":2.3485,"value":128650.83,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. 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NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":3250000,"source":{"system":"sec-edgar","filing":"0001104659-25-114214","document":"tm2531645-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925114214/tm2531645-2_4seq1.xml","form_type":"4"}},{"id":993345,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-11-19T22:45:54.000Z","date":"2025-11-17","kind":"sale","planned":false,"acquired":false,"shares":338653,"price":2.8096,"value":951479.4688,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. 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NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":3500000,"source":{"system":"sec-edgar","filing":"0001104659-25-114214","document":"tm2531645-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925114214/tm2531645-2_4seq1.xml","form_type":"4"}},{"id":1007748,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Units of NET Power Operations LLC","published_at":"2025-11-05T02:16:30.000Z","date":"2025-11-03","kind":"exercise","planned":false,"acquired":false,"shares":2000000,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On November 03, 2025, NPEH exchanged 2,000,000 Class A Units of NET Power Operations LLC for 2,000,000 shares of the Issuer's Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On November 03, 2025, NPEH exchanged 2,000,000 Class A Units of NET Power Operations LLC for 2,000,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On November 03, 2025, NPEH exchanged 2,000,000 Class A Units of NET Power Operations LLC for 2,000,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On November 03, 2025, NPEH exchanged 2,000,000 Class A Units of NET Power Operations LLC for 2,000,000 shares of the Issuer's Class A Common Stock."}],"balance_after":20729880,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2000000},"source":{"system":"sec-edgar","filing":"0001104659-25-106551","document":"tm2530190-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925106551/tm2530190-1_4seq1.xml","form_type":"4"}},{"id":1007747,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2025-11-05T02:16:30.000Z","date":"2025-11-03","kind":"other","planned":false,"acquired":false,"shares":2000000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"For each Class A Unit of Net Power Operations LLC, NPEH owns a corresponding share of Class B Common Stock of the Issuer. Upon the exchange of 2,000,000 Class A Units of Net Power Operations LLC, an equal number of shares of Class B Common Stock of the Issuer held by NPEH, which have no economic value, were cancelled."}],"balance_after":20729880,"source":{"system":"sec-edgar","filing":"0001104659-25-106551","document":"tm2530190-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925106551/tm2530190-1_4seq1.xml","form_type":"4"}},{"id":1007746,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-11-05T02:16:30.000Z","date":"2025-11-03","kind":"exercise","planned":false,"acquired":true,"shares":2000000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. 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The shares of Class A Common Stock were sold in multiple trades at prices ranging from $4.00 to $4.01. 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The shares of Class A Common Stock were sold in multiple trades at prices ranging from $4.05 to $4.06. NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":1847130,"source":{"system":"sec-edgar","filing":"0001104659-25-106551","document":"tm2530190-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925106551/tm2530190-1_4seq1.xml","form_type":"4"}},{"id":1011150,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-10-30T23:39:41.000Z","date":"2025-10-30","kind":"sale","planned":false,"acquired":false,"shares":107754,"price":4.0376,"value":435067.5504,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported reflects the weighted average sales price. 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The shares of Class A Common Stock were sold in multiple trades at prices ranging from $3.72 to $4.315. 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NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":2759832,"source":{"system":"sec-edgar","filing":"0001104659-25-104537","document":"tm2529849-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925104537/tm2529849-2_4seq1.xml","form_type":"4"}},{"id":1013060,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-10-27T23:55:40.000Z","date":"2025-10-27","kind":"sale","planned":false,"acquired":false,"shares":200000,"price":3.7662,"value":753240.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $3.705 to $3.85. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":2767417,"source":{"system":"sec-edgar","filing":"0001104659-25-102684","document":"tm2529510-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925102684/tm2529510-2_4seq1.xml","form_type":"4"}},{"id":1013059,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-10-27T23:55:40.000Z","date":"2025-10-24","kind":"sale","planned":false,"acquired":false,"shares":32583,"price":3.7039,"value":120684.1737,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $3.70 to $3.725. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":2967417,"source":{"system":"sec-edgar","filing":"0001104659-25-102684","document":"tm2529510-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925102684/tm2529510-2_4seq1.xml","form_type":"4"}},{"id":1013058,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-10-27T23:55:40.000Z","date":"2025-10-23","kind":"sale","planned":false,"acquired":false,"shares":284100,"price":3.6901,"value":1048357.41,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $3.33 to $4.05. NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":3000000,"source":{"system":"sec-edgar","filing":"0001104659-25-102684","document":"tm2529510-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925102684/tm2529510-2_4seq1.xml","form_type":"4"}},{"id":1014485,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-10-23T00:52:58.000Z","date":"2025-10-22","kind":"sale","planned":false,"acquired":false,"shares":89000,"price":3.3071,"value":294331.9,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $3.225 to $3.365. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":3284100,"source":{"system":"sec-edgar","filing":"0001104659-25-101627","document":"tm2529224-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925101627/tm2529224-1_4seq1.xml","form_type":"4"}},{"id":1014484,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-10-23T00:52:58.000Z","date":"2025-10-21","kind":"sale","planned":false,"acquired":false,"shares":189300,"price":3.5307,"value":668361.51,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $3.51 to $3.5775. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":3373100,"source":{"system":"sec-edgar","filing":"0001104659-25-101627","document":"tm2529224-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925101627/tm2529224-1_4seq1.xml","form_type":"4"}},{"id":1014483,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-10-23T00:52:58.000Z","date":"2025-10-20","kind":"sale","planned":false,"acquired":false,"shares":201000,"price":3.5784,"value":719258.4,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $3.51 to $3.72. NPEH, LLC (\"NPEH\") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":3562400,"source":{"system":"sec-edgar","filing":"0001104659-25-101627","document":"tm2529224-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925101627/tm2529224-1_4seq1.xml","form_type":"4"}},{"id":1017417,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Units of NET Power Operations LLC","published_at":"2025-10-17T01:02:03.000Z","date":"2025-10-14","kind":"exercise","planned":false,"acquired":false,"shares":4000000,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On October 14, 2025, NPEH, LLC (\"NPEH\") exchanged 4,000,000 Class A Units of NET Power Operations LLC for 4,000,000 shares of the Issuer's Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On October 14, 2025, NPEH, LLC (\"NPEH\") exchanged 4,000,000 Class A Units of NET Power Operations LLC for 4,000,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On October 14, 2025, NPEH, LLC (\"NPEH\") exchanged 4,000,000 Class A Units of NET Power Operations LLC for 4,000,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On October 14, 2025, NPEH, LLC (\"NPEH\") exchanged 4,000,000 Class A Units of NET Power Operations LLC for 4,000,000 shares of the Issuer's Class A Common Stock."}],"balance_after":22729880,"derivative":{"underlying":"Class A Common Stock","underlying_shares":4000000},"source":{"system":"sec-edgar","filing":"0001104659-25-100174","document":"tm2528932-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465925100174/tm2528932-1_4seq1.xml","form_type":"4"}},{"id":1017416,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2025-10-17T01:02:03.000Z","date":"2025-10-16","kind":"sale","planned":false,"acquired":false,"shares":13959,"price":4.7061,"value":65692.4499,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $4.50 to $4.83. 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The shares of Class A Common Stock were sold in multiple trades at prices ranging from $4.85 to $4.925. 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On November 19, 2024, NPEH, LLC (\"NPEH\") exchanged 1,260,420 Class A Units of NET Power Operations LLC for 1,260,420 shares of the Issuer's Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On November 19, 2024, NPEH, LLC (\"NPEH\") exchanged 1,260,420 Class A Units of NET Power Operations LLC for 1,260,420 shares of the Issuer's Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On November 19, 2024, NPEH, LLC (\"NPEH\") exchanged 1,260,420 Class A Units of NET Power Operations LLC for 1,260,420 shares of the Issuer's Class A Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. 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On September 25, 2024, the Reporting Person exchanged 1,015,000 Class A Units of NET Power Operations LLC for 1,015,000 shares of the Issuer's Class A Common Stock."}],"balance_after":1015000,"source":{"system":"sec-edgar","filing":"0001104659-24-106771","document":"tm2425771-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924106771/tm2425771-1_4seq1.xml","form_type":"4"}},{"id":1402102,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2024-09-19T23:14:09.000Z","date":"2024-09-19","kind":"sale","planned":false,"acquired":false,"shares":342364,"price":7.0568,"value":2415994.2752,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.11. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001104659-24-101441","document":"tm2424426-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924101441/tm2424426-1_4seq1.xml","form_type":"4"}},{"id":1402101,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2024-09-19T23:14:09.000Z","date":"2024-09-18","kind":"sale","planned":false,"acquired":false,"shares":80122,"price":7.0211,"value":562544.5742,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.06. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":342364,"source":{"system":"sec-edgar","filing":"0001104659-24-101441","document":"tm2424426-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924101441/tm2424426-1_4seq1.xml","form_type":"4"}},{"id":1402100,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2024-09-19T23:14:09.000Z","date":"2024-09-17","kind":"sale","planned":false,"acquired":false,"shares":144959,"price":7.0392,"value":1020395.3928,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.115. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":422486,"source":{"system":"sec-edgar","filing":"0001104659-24-101441","document":"tm2424426-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924101441/tm2424426-1_4seq1.xml","form_type":"4"}},{"id":1406280,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Units of Net Power Operations LLC","published_at":"2024-09-17T01:58:17.000Z","date":"2024-09-16","kind":"exercise","planned":false,"acquired":false,"shares":500000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 16, 2024, the Reporting Person exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 16, 2024, the Reporting Person exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 16, 2024, the Reporting Person exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock."}],"balance_after":29005300,"derivative":{"underlying":"Class A Common Stock","underlying_shares":500000},"source":{"system":"sec-edgar","filing":"0001104659-24-100355","document":"tm2424151-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924100355/tm2424151-1_4seq1.xml","form_type":"4"}},{"id":1406279,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2024-09-17T01:58:17.000Z","date":"2024-09-16","kind":"other","planned":false,"acquired":false,"shares":500000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"For each Class A Unit of Net Power Operations LLC, the Reporting Person owns a corresponding share of Class B Common Stock of the Issuer. Upon the exchange of 500,000 Class A Units of Net Power Operations LLC, an equal number of shares of Class B Common Stock of the Issuer held by the Reporting Person, which have no economic value, were cancelled."}],"balance_after":29005300,"source":{"system":"sec-edgar","filing":"0001104659-24-100355","document":"tm2424151-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924100355/tm2424151-1_4seq1.xml","form_type":"4"}},{"id":1406278,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2024-09-17T01:58:17.000Z","date":"2024-09-16","kind":"exercise","planned":false,"acquired":true,"shares":500000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 16, 2024, the Reporting Person exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock."}],"balance_after":567445,"source":{"system":"sec-edgar","filing":"0001104659-24-100355","document":"tm2424151-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924100355/tm2424151-1_4seq1.xml","form_type":"4"}},{"id":1406277,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2024-09-17T01:58:17.000Z","date":"2024-09-16","kind":"sale","planned":false,"acquired":false,"shares":36752,"price":7.0506,"value":259123.6512,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.11. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":67445,"source":{"system":"sec-edgar","filing":"0001104659-24-100355","document":"tm2424151-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924100355/tm2424151-1_4seq1.xml","form_type":"4"}},{"id":1406276,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2024-09-17T01:58:17.000Z","date":"2024-09-13","kind":"sale","planned":false,"acquired":false,"shares":1340,"price":7.2596,"value":9727.864,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.25 to $7.30. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":104197,"source":{"system":"sec-edgar","filing":"0001104659-24-100355","document":"tm2424151-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924100355/tm2424151-1_4seq1.xml","form_type":"4"}},{"id":1406275,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":18963,"kind":"organization","name":"NPEH, LLC","position":1,"cik":"0001981772","reported_name":"NPEH, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2024-09-17T01:58:17.000Z","date":"2024-09-12","kind":"sale","planned":false,"acquired":false,"shares":2315,"price":7.2635,"value":16815.0025,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.25 to $7.29. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":105537,"source":{"system":"sec-edgar","filing":"0001104659-24-100355","document":"tm2424151-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000110465924100355/tm2424151-1_4seq1.xml","form_type":"4"}}],"next_cursor":"2024-09-17T01:58:17.000000Z,1406275"}