Form: 3

Initial statement of beneficial ownership of securities

August 11, 2025

SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
BEAUCHAMP DAMIAN R.
(Last) (First) (Middle)
406 BLACKWELL STREET, 4TH FLOOR
(Street)
DURHAM NC 27701
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
07/30/2025 		3. Issuer Name and Ticker or Trading Symbol
NET Power Inc. [ NPWR ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class B Common Stock 26,729,880 I See Footnotes(1)(2)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Class A Units of NET Power Operations LLC (2) (2) Class A Common Stock 26,729,880 (2) I See Footnotes(1)(2)
1. Name and Address of Reporting Person*
BEAUCHAMP DAMIAN R.
(Last) (First) (Middle)
406 BLACKWELL STREET, 4TH FLOOR
(Street)
DURHAM NC 27701
(City) (State) (Zip)
1. Name and Address of Reporting Person*
Beauchamp Cynda
(Last) (First) (Middle)
8 THE GREEN STE B
(Street)
DOVER DE 19901
(City) (State) (Zip)
Explanation of Responses:
1. The securities reported on this Form 3 are directly held by NPEH, LLC ("NPEH"), a majority owned subsidiary of 8 Rivers Capital LLC ("8 Rivers") and of which 8 Rivers is the manager. The Reporting Persons are married and each Reporting Person independently indirectly owns approximately 34.2% of 8 Rivers. Accordingly, each Reporting Person may be deemed the indirect beneficial owner of the securities owned by NPEH to the extent of his or her pecuniary interest therein. Each Reporting Person disclaims beneficial ownership of these securities except to the extent of his or her pecuniary interest therein.
2. For each Class A Unit of Net Power Operations LLC, NPEH owns a 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.
/s/ Damian R. Beauchamp 08/08/2025
/s/ Cynda Beauchamp 08/08/2025
** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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