Cynda Beauchamp - 31 Oct 2025 Form 4 Insider Report for NET Power Inc. (NPWR)

Role
10%+ Owner
Signature
/s/ Cynda Beauchamp
Issuer symbol
NPWR
Transactions as of
31 Oct 2025
Transactions value $
-$73,419
Form type
4
Filing time
04 Nov 2025, 21:03:36
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Beauchamp Cynda 10%+ Owner 8 THE GREEN STE B, DOVER /s/ Cynda Beauchamp 2025-11-04 0002079418

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NPWR Class A Common Stock Sale -$73.4K -18.1K -0.97% $4.05 1.85M 31 Oct 2025 See Footnote F1, F2
transaction NPWR Class A Common Stock Other -1.85M -100% 0 02 Nov 2025 See Footnotes F2, F3
transaction NPWR Class B Common Stock Other -22.7M -100% 0 02 Nov 2025 See Footnotes F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction NPWR Class A Units of NET Power Operations LLC Other -22.7M -100% 0 02 Nov 2025 Class A Common Stock 22.7M See Footnotes F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Cynda Beauchamp is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 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 $4.05 to $4.06. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
F2 The securities reported in this Form 4 are directly held by NPEH, a limited liability company of which the Reporting Person was the indirect majority owner. On November 2, 2025, the Reporting Person sold 100% of the equity interests of 8RCH, LLC, which holds 50% of the equity interests of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedoria"). Tillandsia, Areca and Chamaedorea own approximately 18.6%, 25.77% and 24.11%, respectively, of the voting units of 8 Rivers Capital, LLC ("8 Rivers"). 8 Rivers is the manager and owns approximately 91.4% of NPEH.
F3 For each Class A Unit of Net Power Operations LLC, NPEH owns one corresponding share of Class B Common Stock of the Issuer. The Class A Units of NET Power Operations LLC are exchangeable (together with the cancellation of a corresponding number of shares of the Issuer's Class B Common Stock) into shares of the Issuer's Class A Common Stock on a one-for-one basis or, at the Issuer's election, cash, and have no expiration date.