NET Power Inc. filings document the formal reporting record of an emerging growth energy technology company developing low-carbon gas power solutions. Its Form 8-K reports include operating and financial results, business updates, project-development disclosures, executive appointments, board changes and Regulation FD communications related to power-generation site and interconnection matters.
The company’s proxy materials cover annual meeting voting items, director elections, auditor ratification and governance procedures. Other filings describe capital-structure and tax matters connected to NET Power Operations LLC, Opco Units, Class A common stock exchange mechanics, the terminated tax receivable agreement and related public-company obligations.
NET Power Inc. (NPWR) reported insider share sales by NPEH, LLC across three days. On 10/28/2025, it sold 7,585 Class A shares at a weighted average price of $3.7695, leaving 2,759,832 shares directly owned. On 10/29/2025, it sold 786,832 shares at a weighted average of $4.1166, leaving 1,973,000. On 10/30/2025, it sold 107,754 shares at a weighted average of $4.0376, leaving 1,865,246 directly owned.
The filing notes weighted-average prices based on multiple trades: $3.72–$3.78 on 10/28, $3.72–$4.315 on 10/29, and $4.00–$4.105 on 10/30. NPEH stated it will provide full trade details upon request.
NET Power (NPWR): insider-affiliated entity reports stock sales. NPEH, LLC reported open-market sales of Class A Common Stock over three days. On 10/28/2025 it sold 7,585 shares at a weighted average price of $3.7695. On 10/29/2025 it sold 786,832 shares at a weighted average price of $4.1166. On 10/30/2025 it sold 107,754 shares at a weighted average price of $4.0376.
Following these transactions, NPEH, LLC reported indirect beneficial ownership of 1,865,246 shares. The prices reflect weighted averages for multiple trades, with disclosed ranges of $3.72–$3.78, $3.72–$4.315, and $4.00–$4.105, respectively.
NET Power Inc. (NPWR): Schedule 13D/A Amendment No. 7 updates ownership by 8 Rivers–affiliated entities. The reporting group discloses beneficial ownership of 24,702,880 shares of Class A common stock, representing 23.61% of the class. This includes 1,973,000 shares of Class A common stock held directly by NPEH and 22,729,880 Opco Units exchangeable one-for-one into Class A shares, with an equal number of Class B shares to be cancelled upon exchange.
NPEH exchanged 4,000,000 Opco Units for 4,000,000 Class A shares on October 14, 2025, then sold 2,027,000 Class A shares between October 15–29, 2025, leaving 1,973,000 Class A shares held directly. The percentage calculation references 79,909,957 Class A shares outstanding, comprised of 77,882,957 outstanding as of August 7, 2025 and 2,027,000 shares sold by NPEH following the exchange. The reporting persons report 0 sole voting/dispositive power and 24,702,880 shared voting and shared dispositive power.
NET Power Inc. (NPWR) received a Form 4 reporting open-market sales of its Class A Common Stock by NPEH, LLC. The filing lists three sales: 284,100 shares on 10/23/2025 at a weighted average price of $3.6901; 32,583 shares on 10/24/2025 at $3.7039; and 200,000 shares on 10/27/2025 at $3.7662. Following these transactions, the reporting person directly beneficially owned 2,767,417 shares.
The filing notes that each day’s price reflects a weighted average across multiple trades: $3.33–$4.05 on 10/23/2025, $3.70–$3.725 on 10/24/2025, and $3.705–$3.85 on 10/27/2025. The sales were reported as dispositions and the ownership form is direct.
NET Power (NPWR): Section 16 filers reported open-market sales of Class A common stock. The reporting persons, filing jointly, disclosed sales indirectly through NPEH, LLC on three dates: 284,100 shares on 10/23/2025 at a weighted average price of $3.6901; 32,583 shares on 10/24/2025 at $3.7039; and 200,000 shares on 10/27/2025 at $3.7662. Following these transactions, 2,767,417 shares were beneficially owned indirectly by NPEH, LLC.
The footnotes state that each day’s sales occurred in multiple trades within stated price ranges, and that 8 Rivers Capital, LLC may be deemed a beneficial owner through its interest in NPEH. The reporting relationship is indicated as Director and 10% Owner.
NET Power (NPWR) insiders reported open-market sales of Class A Common Stock through NPEH, LLC. On 10/20/2025, NPEH sold 201,000 shares at a weighted average price of $3.5784. On 10/21/2025, it sold 189,300 shares at $3.5307. On 10/22/2025, it sold 89,000 shares at $3.3071.
Following these transactions, NPEH reported 3,284,100 shares beneficially owned on an indirect basis. The reporting persons indicate indirect ownership through 8 Rivers Capital, LLC, with stated disclaimers of beneficial ownership except to the extent of pecuniary interest.
NET Power Inc. (NPWR) disclosed insider sales by a reporting person identified as a Director. On 10/20/2025, the holder sold 201,000 Class A shares at a weighted average price of $3.5784, leaving 3,562,400 shares beneficially owned. On 10/21/2025, they sold 189,300 shares at a weighted average of $3.5307, leaving 3,373,100 shares. On 10/22/2025, they sold 89,000 shares at a weighted average of $3.3071, leaving 3,284,100 shares.
The prices reflect multiple trades within disclosed ranges for each date, and the reported ownership is listed as direct.
NET Power (NPWR): insider ownership update. NPEH, LLC, a 10% owner, exchanged 4,000,000 Class A Units of NET Power Operations LLC for 4,000,000 shares of Class A Common Stock on 10/14/2025; an equal number of Class B shares were cancelled the same day. The units are exchangeable one-for-one into Class A Common Stock with no expiration.
Subsequently, NPEH sold Class A shares on 10/15/2025 at a weighted average price of $4.8321 (100,000 shares) and $4.8786 (122,641 shares), and on 10/16/2025 at $4.7061 (13,959 shares). After these transactions, NPEH beneficially owned 3,763,400 shares of Class A Common Stock. The Class B Common Stock balance shown was 22,729,880 following the cancellation.
NET Power (NPWR): Insider affiliate NPEH, LLC exchanged 4,000,000 Class A Units of NET Power Operations LLC for 4,000,000 shares of Class A Common Stock on 10/14/2025; an equal number of Class B Common shares (no economic value) were cancelled.
Subsequently, NPEH sold a total of 236,600 Class A shares on 10/15–10/16/2025 at weighted average prices of $4.8321, $4.8786, and $4.7061, respectively. Following these transactions, 3,763,400 Class A shares were beneficially owned indirectly by NPEH, and 22,729,880 Class A Units of NET Power Operations LLC remained beneficially owned.
NET Power Inc. reported a materially altered balance sheet and operating results for the six months ended June 30, 2025. Total assets declined to $1.79 billion from $2.29 billion, driven primarily by a $359.8 million goodwill impairment recognized in March 2025 and the expensing of $56.1 million of construction-in-progress costs related to Project Permian. The company recorded a six-month net loss after tax of $455.6 million, with net loss attributable to NET Power Inc. of $147.5 million. Revenue was immaterial at $0 for the period compared with $238 thousand in the prior year period.
Liquidity remains a key focus: cash and cash equivalents were $284.0 million and available-for-sale investments were $188.3 million, giving $472.3 million of total liquidity. Management states existing liquidity should fund operations for the next 12 months, though Project Permian long-lead releases are paused for a value engineering process and commercial plant timing has been pushed out. The company also reduced its Tax Receivable Agreement liability by $21.3 million and delivered notice to terminate the TRA.