0001845437-23-000027.txt : 20230905 0001845437-23-000027.hdr.sgml : 20230905 20230905161646 ACCESSION NUMBER: 0001845437-23-000027 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230901 FILED AS OF DATE: 20230905 DATE AS OF CHANGE: 20230905 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: HEFFINGER BRANDON CENTRAL INDEX KEY: 0001975934 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40503 FILM NUMBER: 231235968 MAIL ADDRESS: STREET 1: C/O NET POWER, LLC STREET 2: 404 HUNT STREET, STE 410 CITY: DURHAM STATE: NC ZIP: 27701 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: NET Power Inc. CENTRAL INDEX KEY: 0001845437 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRICAL INDUSTRIAL APPARATUS [3620] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 404 HUNT STREET, SUITE 410 CITY: DURHAM STATE: NC ZIP: 27701 BUSINESS PHONE: (919) 287-4750 MAIL ADDRESS: STREET 1: 404 HUNT STREET, SUITE 410 CITY: DURHAM STATE: NC ZIP: 27701 FORMER COMPANY: FORMER CONFORMED NAME: Rice Acquisition Corp. II DATE OF NAME CHANGE: 20210210 4 1 wf-form4_169394499204649.xml FORM 4 X0508 4 2023-09-01 0 0001845437 NET Power Inc. NPWR 0001975934 HEFFINGER BRANDON C/O NET POWER INC. 404 HUNT STREET, SUITE 410 DURHAM NC 27701 0 1 0 0 Chief Commercial Officer 0 Class A Common Stock 2023-09-01 4 S 0 34858 14.1881 D 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $13.89 to $14.41, 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. /s/ James Mahon, attorney-in-fact 2023-09-05