{"transactions":[{"id":1780732,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class A Common Stock","published_at":"2023-09-14T20:36:48.000Z","date":"2023-09-13","kind":"sale","planned":false,"acquired":false,"shares":26126,"price":15.1181,"value":394975.4806,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $15.00 to $15.24, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001845437-23-000036","document":"wk-form4_1694723800.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000036/wk-form4_1694723800.xml","form_type":"4"}},{"id":1780731,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class A Common Stock","published_at":"2023-09-14T20:36:48.000Z","date":"2023-09-12","kind":"sale","planned":false,"acquired":false,"shares":5268,"price":15.0371,"value":79215.4428,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $15.00 to $15.13, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":26126,"source":{"system":"sec-edgar","filing":"0001845437-23-000036","document":"wk-form4_1694723800.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000036/wk-form4_1694723800.xml","form_type":"4"}},{"id":1782624,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class A Common Stock","published_at":"2023-09-12T20:15:50.000Z","date":"2023-09-11","kind":"sale","planned":false,"acquired":false,"shares":20000,"price":15.1115,"value":302230.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $15.00 to $15.44, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":31394,"source":{"system":"sec-edgar","filing":"0001845437-23-000034","document":"wf-form4_169454973580624.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000034/wf-form4_169454973580624.xml","form_type":"4"}},{"id":1782623,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class A Common Stock","published_at":"2023-09-12T20:15:50.000Z","date":"2023-09-08","kind":"sale","planned":false,"acquired":false,"shares":20000,"price":15.7142,"value":314284.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $15.56 to $15.91, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":51394,"source":{"system":"sec-edgar","filing":"0001845437-23-000034","document":"wf-form4_169454973580624.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000034/wf-form4_169454973580624.xml","form_type":"4"}},{"id":1784390,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class A Common Stock","published_at":"2023-09-08T20:43:46.000Z","date":"2023-09-07","kind":"sale","planned":false,"acquired":false,"shares":20000,"price":15.2066,"value":304132.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $15.00 to $15.60, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":71394,"source":{"system":"sec-edgar","filing":"0001845437-23-000032","document":"wf-form4_169420581311687.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000032/wf-form4_169420581311687.xml","form_type":"4"}},{"id":1784389,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class A Common Stock","published_at":"2023-09-08T20:43:46.000Z","date":"2023-09-06","kind":"sale","planned":false,"acquired":false,"shares":8606,"price":15.2509,"value":131249.2454,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $15.00 to $15.63, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":91394,"source":{"system":"sec-edgar","filing":"0001845437-23-000032","document":"wf-form4_169420581311687.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000032/wf-form4_169420581311687.xml","form_type":"4"}},{"id":1791631,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class A Units of NET Power Operations LLC","published_at":"2023-08-31T20:31:24.000Z","date":"2023-08-29","kind":"exercise","planned":false,"acquired":false,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On August 29, 2023, 100,000 Class A Units of NET Power Operations LLC (a subsidiary of the issuer) held by the reporting person were redeemed in exchange for an equal number of shares of the issuer's Class A Common Stock pursuant to a redemption notice from the reporting person dated August 28, 2023, and upon such redemption, 100,000 shares of the issuer's Class B Common Stock held by the reporting person were surrendered to the issuer and canceled."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On August 29, 2023, 100,000 Class A Units of NET Power Operations LLC (a subsidiary of the issuer) held by the reporting person were redeemed in exchange for an equal number of shares of the issuer's Class A Common Stock pursuant to a redemption notice from the reporting person dated August 28, 2023, and upon such redemption, 100,000 shares of the issuer's Class B Common Stock held by the reporting person were surrendered to the issuer and canceled."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On August 29, 2023, 100,000 Class A Units of NET Power Operations LLC (a subsidiary of the issuer) held by the reporting person were redeemed in exchange for an equal number of shares of the issuer's Class A Common Stock pursuant to a redemption notice from the reporting person dated August 28, 2023, and upon such redemption, 100,000 shares of the issuer's Class B Common Stock held by the reporting person were surrendered to the issuer and canceled."}],"balance_after":593028,"derivative":{"underlying":"Class A Common Stock","underlying_shares":100000},"source":{"system":"sec-edgar","filing":"0001845437-23-000018","document":"wf-form4_169351386901911.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000018/wf-form4_169351386901911.xml","form_type":"4"}},{"id":1791630,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class B Common Stock","published_at":"2023-08-31T20:31:24.000Z","date":"2023-08-29","kind":"other","planned":false,"acquired":false,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":593028,"source":{"system":"sec-edgar","filing":"0001845437-23-000018","document":"wf-form4_169351386901911.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000018/wf-form4_169351386901911.xml","form_type":"4"}},{"id":1791629,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Class A Common Stock","published_at":"2023-08-31T20:31:24.000Z","date":"2023-08-29","kind":"exercise","planned":false,"acquired":true,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":100000,"source":{"system":"sec-edgar","filing":"0001845437-23-000018","document":"wf-form4_169351386901911.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000184543723000018/wf-form4_169351386901911.xml","form_type":"4"}},{"id":1858149,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Class A Units of NET Power Operations LLC","published_at":"2023-06-12T23:43:06.000Z","date":"2023-06-08","kind":"grant","planned":false,"acquired":true,"shares":693028,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The Opco Units (together with the corresponding shares of the issuer's Class B common stock) are exchangeable into cash or shares of the issuer's Class A common stock, at the issuer's election, on a one-for-one basis and have no expiration date."},{"field":"kind","element":"transactionCoding","label":"F1","text":"On June 8, 2023, as a result of the consummation of the transactions (the \"Business Combination\") contemplated by that certain Business Combination Agreement, dated December 13, 2022 and subsequently amended on April 23, 2023, by and among the issuer, NET Power Operations LLC (f/k/a Rice Acquisition Holdings II LLC) (\"Opco\"), Topo Buyer Co, LLC, Topo Merger Sub, LLC and NET Power, LLC (\"Old NET Power\"), in exchange for the equity interests of Old NET Power, which were cancelled, Mr. Mahon received Class A units of Opco (the \"Opco Units\") and a corresponding number of shares of the issuer's Class B common stock (which together are exchangeable into shares of the issuer's Class A Common Stock on a one-for-one basis)."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On June 8, 2023, as a result of the consummation of the transactions (the \"Business Combination\") contemplated by that certain Business Combination Agreement, dated December 13, 2022 and subsequently amended on April 23, 2023, by and among the issuer, NET Power Operations LLC (f/k/a Rice Acquisition Holdings II LLC) (\"Opco\"), Topo Buyer Co, LLC, Topo Merger Sub, LLC and NET Power, LLC (\"Old NET Power\"), in exchange for the equity interests of Old NET Power, which were cancelled, Mr. Mahon received Class A units of Opco (the \"Opco Units\") and a corresponding number of shares of the issuer's Class B common stock (which together are exchangeable into shares of the issuer's Class A Common Stock on a one-for-one basis)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Opco Units (together with the corresponding shares of the issuer's Class B common stock) are exchangeable into cash or shares of the issuer's Class A common stock, at the issuer's election, on a one-for-one basis and have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Opco Units (together with the corresponding shares of the issuer's Class B common stock) are exchangeable into cash or shares of the issuer's Class A common stock, at the issuer's election, on a one-for-one basis and have no expiration date."}],"balance_after":693028,"derivative":{"underlying":"Class A common stock","underlying_shares":693028},"source":{"system":"sec-edgar","filing":"0001213900-23-048298","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000121390023048298/ownership.xml","form_type":"4"}},{"id":1858148,"issuer":{"id":6500,"kind":"organization","name":"Net Power Inc.","symbol":"NPWR"},"owners":[{"id":109705,"kind":"person","name":"MAHON JAMES","position":1,"cik":"0001975868","reported_name":"MAHON JAMES","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Class B Common Stock","published_at":"2023-06-12T23:43:06.000Z","date":"2023-06-08","kind":"grant","planned":false,"acquired":true,"shares":693028,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On June 8, 2023, as a result of the consummation of the transactions (the \"Business Combination\") contemplated by that certain Business Combination Agreement, dated December 13, 2022 and subsequently amended on April 23, 2023, by and among the issuer, NET Power Operations LLC (f/k/a Rice Acquisition Holdings II LLC) (\"Opco\"), Topo Buyer Co, LLC, Topo Merger Sub, LLC and NET Power, LLC (\"Old NET Power\"), in exchange for the equity interests of Old NET Power, which were cancelled, Mr. Mahon received Class A units of Opco (the \"Opco Units\") and a corresponding number of shares of the issuer's Class B common stock (which together are exchangeable into shares of the issuer's Class A Common Stock on a one-for-one basis)."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On June 8, 2023, as a result of the consummation of the transactions (the \"Business Combination\") contemplated by that certain Business Combination Agreement, dated December 13, 2022 and subsequently amended on April 23, 2023, by and among the issuer, NET Power Operations LLC (f/k/a Rice Acquisition Holdings II LLC) (\"Opco\"), Topo Buyer Co, LLC, Topo Merger Sub, LLC and NET Power, LLC (\"Old NET Power\"), in exchange for the equity interests of Old NET Power, which were cancelled, Mr. Mahon received Class A units of Opco (the \"Opco Units\") and a corresponding number of shares of the issuer's Class B common stock (which together are exchangeable into shares of the issuer's Class A Common Stock on a one-for-one basis)."}],"balance_after":693028,"source":{"system":"sec-edgar","filing":"0001213900-23-048298","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845437/000121390023048298/ownership.xml","form_type":"4"}}]}