8 Rivers Capital, LLC - Oct 20, 2025 Form 4 Insider Report for NET Power Inc. (NPWR)

Role
10%+ Owner
Signature
By: /s/ Min Lee, General Counsel of 8 Rivers Capital, LLC
Stock symbol
NPWR
Transactions as of
Oct 20, 2025
Transactions value $
-$1,681,952
Form type
4
Date filed
10/22/2025, 08:55 PM
Previous filing
Oct 16, 2025

Reporting Owners (3)

Name Relationship Address Signature Signature date CIK
8 Rivers Capital, LLC 10%+ Owner 406 BLACKWELL STREET, 4TH FLOOR, DURHAM By: /s/ Min Lee, General Counsel of 8 Rivers Capital, LLC 2025-10-22 0001981100
BEAUCHAMP DAMIAN R. 10%+ Owner 406 BLACKWELL STREET, 4TH FLOOR, DURHAM By: /s/ Damian R. Beauchamp 2025-10-22 0001973442
Beauchamp Cynda 10%+ Owner 8 THE GREEN STE B, DOVER By: /s/ Cynda Beauchamp 2025-10-22 0002079418

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NPWR Class A Common Stock Sale -$719K -201K -5.34% $3.58 3.56M Oct 20, 2025 By: NPEH, LLC F1, F4, F5
transaction NPWR Class A Common Stock Sale -$668K -189K -5.31% $3.53 3.37M Oct 21, 2025 By: NPEH, LLC F2, F4, F5
transaction NPWR Class A Common Stock Sale -$294K -89K -2.64% $3.31 3.28M Oct 22, 2025 By: NPEH, LLC F3, F4, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

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 $3.51 to $3.72. 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 price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $3.51 to $3.5775. 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.
F3 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 $3.225 to $3.365. 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.
F4 As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.
F5 Damian R. Beauchamp ("Mr. Beauchamp") and Cynda Beauchamp ("Mrs. Beauchamp") are married and each independently indirectly owns approximately 34.2% of 8 Rivers. Accordingly, each may be deemed the indirect beneficial owner of the securities owned by NPEH to the extent of his or her pecuniary interest therein. Mr. and Mrs. Beauchamp disclaim beneficial ownership of any such securities, except to the extent of his or her pecuniary interest therein, if any, and this report shall not be deemed an admission that Mr. or Mrs. Beauchamp is the beneficial owner of such securities for purposes of Section 16 or otherwise.