Every Form 4 that NET POWER INC (NPWR) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow NPWR and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full NPWR filings page.
NET Power Inc. (NPWR) reported an insider stock sale by a director on a Form 4. The reporting person sold 338,653 shares of Class A common stock on 11/17/2025 at a weighted average price of $2.8096, and a further 250,000 shares on 11/19/2025 at a weighted average price of $2.568. After these transactions, the reporting person beneficially owned 3,250,000 shares of Class A common stock. The filing notes that each day's sales were executed in multiple trades within stated price ranges and that detailed trade data is available upon request.
NET Power Inc. (NPWR) reported insider share sales by an affiliated entity of a director and more than 10% owner. NPEH, LLC sold 338,653 shares of Class A common stock on 11/17/2025 at a weighted average price of $2.8096 per share, and another 250,000 shares on 11/19/2025 at a weighted average price of $2.568 per share, through multiple trades within stated price ranges.
After these transactions, NPEH is shown as indirectly holding 3,500,000 and then 3,250,000 shares of Class A common stock. 8 Rivers Capital, LLC, as manager and holder of approximately 91.4% of NPEH’s equity, and Damian R. Beauchamp, who indirectly owns approximately 68.5% of 8 Rivers, may each be deemed beneficial owners to the extent of their pecuniary interests, though both disclaim beneficial ownership beyond that.
NET Power (NPWR) filed a Form 4 showing insider-related transactions by NPEH, LLC. NPEH sold 18,116 shares of Class A Common Stock on 10/31/2025 at a weighted average price of $4.0527, and sold 8,477 shares on 11/03/2025 at a weighted average price of $4.0025. On 11/03/2025, NPEH exchanged 2,000,000 Class A Units of NET Power Operations LLC for 2,000,000 shares of Class A Common Stock.
In connection with the exchange, 2,000,000 shares of Class B Common Stock corresponding to those units were cancelled. Following these transactions, NPEH reported 3,838,653 Class A shares beneficially owned indirectly. The filing notes NPEH’s relationship to 8 Rivers Capital, LLC and Damian R. Beauchamp, with customary beneficial ownership disclaimers.
NET Power (NPWR): NPEH, LLC, a 10% owner, reported open‑market sales of 18,116 and 8,477 Class A shares at weighted average prices of $4.0527 and $4.0025.
On November 3, 2025, NPEH exchanged 2,000,000 Class A Units of NET Power Operations LLC for 2,000,000 Class A Common shares; an equal number of Class B shares were cancelled. Following the transactions, NPEH directly owned 3,838,653 Class A shares and 20,729,880 Class B shares.
NET Power Inc. (NPWR): Insider activity reported on Form 4. A reporting person, through NPEH, LLC, sold 18,116 shares of Class A Common Stock on 10/31/2025 at a weighted average price of $4.0527. After this sale, 1,847,130 Class A shares were indirectly held.
On 11/02/2025, journal transactions (code J) reflect the reporting person’s exit from indirect ownership via the sale of upstream interests tied to NPEH. Following these entries, beneficial ownership reported became 0 for Class A Common Stock and 0 for Class B Common Stock (22,729,880 previously shown), and 0 for 22,729,880 Class A Units of NET Power Operations LLC. Each Class A Unit is exchangeable, together with canceling a corresponding Class B share, into one share of Class A Common Stock or cash at the issuer’s election, and has no expiration date.
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) 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.