8 Rivers Capital, LLC - 31 Oct 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
Issuer symbol
NPWR
Transactions as of
31 Oct 2025
Net transactions value
-$107,348
Form type
4
Filing time
04 Nov 2025, 21:17:52 UTC
Previous filing
30 Oct 2025
Next filing
19 Nov 2025

Reporting Owners (2)

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 04 Nov 2025 0001981100
BEAUCHAMP DAMIAN R. 10%+ Owner 406 BLACKWELL STREET, 4TH FLOOR, DURHAM By: /s/ Damian R. Beauchamp 04 Nov 2025 0001973442

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NPWR Class A Common Stock Sale $73,419 -18,116 -0.97% $4.05 1,847,130 31 Oct 2025 By: NPEH, LLC F1, F5, F6
transaction NPWR Class A Common Stock Sale $33,929 -8,477 -0.46% $4.00 1,838,653 03 Nov 2025 By: NPEH, LLC F2, F5, F6
transaction NPWR Class A Common Stock Conversion of derivative security +2,000,000 +109% 3,838,653 03 Nov 2025 By: NPEH, LLC F3, F5, F6
transaction NPWR Class B Common Stock Other -2,000,000 -8.8% 20,729,880 03 Nov 2025 By: NPEH, LLC F4, F5, F6

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 Conversion of derivative security -2,000,000 -8.8% 20,729,880 03 Nov 2025 Class A Common Stock 2,000,000 By: NPEH, LLC F3, F5, F6
* 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 $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 price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $4.00 to $4.01. 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 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 November 03, 2025, NPEH exchanged 2,000,000 Class A Units of NET Power Operations LLC for 2,000,000 shares of the Issuer's Class A Common Stock.
F4 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 2,000,000 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 have no economic value, were cancelled.
F5 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.
F6 Damian R. Beauchamp ("Mr. Beauchamp") independently indirectly owns approximately 68.5% of 8 Rivers. Accordingly, Mr. Beauchamp may be deemed the indirect beneficial owner of the securities owned by NPEH to the extent of his pecuniary interest therein. Mr. Beauchamp disclaims beneficial ownership of any such securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that Mr. Beauchamp is the beneficial owner of such securities for purposes of Section 16 or otherwise.