The SEC lists Net Power Inc. under CIK 0001845437, in electrical industrial apparatus. It is grouped with Information Technology companies on this site.
NPWR Form 4 activity by transaction type, last 90 days
Form 4 transaction type
Transactions
Shares
Total value
Open-market sale
38
4,430,000
$7.56M
Grant or award
5
816,881
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
NPWR insider transactions (Form 4)
67
73 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 1 of 3.
Footnote F1 (shares): Represents restricted stock units granted on April 13, 2026 under the NET Power Inc. 2023 Omnibus Incentive Plan. Each restricted stock unit represents the right to receive one share of Class A common stock of the Issuer. The restricted stock units vest in full on April 13… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.87 to $2.00. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.77 to $1.885. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.87 to $2.00. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.77 to $1.885. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F1 (shares): The restricted stock units reported in this Form 4 were granted effective June 3, 2026, the date of the Issuer's 2026 annual meeting of stockholders, pursuant to the Issuer's Non-Employee Director Compensation Policy, which provides, among other things, for an automatic annual… Full note on SEC EDGAR
Footnote F1 (shares): The restricted stock units reported in this Form 4 were granted effective June 3, 2026, the date of the Issuer's 2026 annual meeting of stockholders, pursuant to the Issuer's Non-Employee Director Compensation Policy, which provides, among other things, for an automatic annual… Full note on SEC EDGAR
Footnote F1 (shares): The restricted stock units reported in this Form 4 were granted effective June 3, 2026, the date of the Issuer's 2026 annual meeting of stockholders, pursuant to the Issuer's Non-Employee Director Compensation Policy, which provides, among other things, for an automatic annual… Full note on SEC EDGAR
Footnote F1 (shares): The restricted stock units reported in this Form 4 were granted effective June 3, 2026, the date of the Issuer's 2026 annual meeting of stockholders, pursuant to the Issuer's Non-Employee Director Compensation Policy, which provides, among other things, for an automatic annual… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.84 to $2.0091. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.82 to $1.985. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.84 to $2.0091. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.82 to $1.985. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.62 to $1.665. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.585 to $1.65. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.85 to $2.06. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.62 to $1.665. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.585 to $1.65. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.85 to $2.06. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.50 to $1.55. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.525 to $1.57. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.54 to $1.625. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.50 to $1.55. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.525 to $1.57. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.54 to $1.625. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.50 to $1.55. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.50 to $1.55. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.50 to $1.52. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.50 to $1.55. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.50 to $1.55. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.50 to $1.52. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.415 to $1.495. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.40 to $1.41. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.40 to $1.47. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.415 to $1.495. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.40 to $1.41. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.40 to $1.47. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.50 to $1.555. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.50 to $1.56. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.50 to $1.52. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F1 (price): 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 $1.50 to $1.555. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $1.50 to $1.56. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F3 (price): 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 $1.50 to $1.52. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding… Full note on SEC EDGAR
Footnote F1 (price): 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 $2.35 to $2.51. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.405 to $2.46. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F1 (price): 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 $2.35 to $2.51. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F2 (price): 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 $2.405 to $2.46. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full… Full note on SEC EDGAR
Footnote F1 (price): 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… Full note on SEC EDGAR
Footnote F2 (price): 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… Full note on SEC EDGAR
Footnote F1 (price): 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… Full note on SEC EDGAR
Footnote F2 (price): 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… Full note on SEC EDGAR
Footnote F1 (price): 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… Full note on SEC EDGAR
Footnote F1 (price): 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… Full note on SEC EDGAR
Footnote F1 (price): 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… Full note on SEC EDGAR
Footnote F2 (price): 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… Full note on SEC EDGAR
Footnote F3 (price): 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… Full note on SEC EDGAR
Footnote F1 (price): 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… Full note on SEC EDGAR
Footnote F2 (price): 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… Full note on SEC EDGAR
Footnote F3 (price): 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… Full note on SEC EDGAR
Footnote F1 (price): 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… Full note on SEC EDGAR
Footnote F2 (price): 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… Full note on SEC EDGAR
Net Power Inc. (NPWR) had 19 insider filings in the last 90 days, with the most recent on 2026-10-08. The full record for NPWR runs to 73 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying NPWR stock?
No insider purchases of NPWR were filed in the last 90 days.
How many insiders are selling NPWR stock?
38 insider sales of NPWR were filed in the last 90 days, totaling $7.56M.
Where can I see NPWR SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects NPWR Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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