[Form 4] NET Power Inc. Insider Trading Activity

Rhea-AI Filing Summary

NET Power Inc. (NPWR) reported insider share sales by an affiliated entity of a director and more than 10% owner. NPEH, LLC sold 338,653 shares of Class A common stock on 11/17/2025 at a weighted average price of $2.8096 per share, and another 250,000 shares on 11/19/2025 at a weighted average price of $2.568 per share, through multiple trades within stated price ranges.

After these transactions, NPEH is shown as indirectly holding 3,500,000 and then 3,250,000 shares of Class A common stock. 8 Rivers Capital, LLC, as manager and holder of approximately 91.4% of NPEH’s equity, and Damian R. Beauchamp, who indirectly owns approximately 68.5% of 8 Rivers, may each be deemed beneficial owners to the extent of their pecuniary interests, though both disclaim beneficial ownership beyond that.

Insights

Equity Ownership and Governance Analyst

Large indirect shareholder related to a director sold shares through an affiliated LLC while retaining a sizable position.

This Form 4 reports that **NPEH, LLC**, an affiliated entity, sold **338,653** shares of **Class A Common Stock** on 11/17/2025 at a weighted average price of $2.8096, and a further **250,000** shares on 11/19/2025 at a weighted average price of $2.568. After these sales, NPEH still holds **3,250,000** shares indirectly, so this is a partial reduction rather than an exit. All reported trades use code "S", which indicates open-market or similar sales.

The filing explains a layered ownership structure: **NPEH, LLC** directly owns the shares; **8 Rivers Capital, LLC** holds approximately 91.4% of NPEH’s equity; and **Damian R. Beauchamp** indirectly owns approximately 68.5% of 8 Rivers. Each of 8 Rivers and Mr. Beauchamp states that any beneficial ownership is only to the extent of their pecuniary interest and is otherwise disclaimed, which is common language to limit legal conclusions about control. The remaining 3,250,000 shares continue to represent a meaningful indirect stake linked to a director relationship.

The sales occurred over multiple trades within stated price ranges, with weighted averages provided, and the filer offers to supply full trade breakdowns upon request. The transactions are not identified as being under a Rule 10b5-1 trading plan, so they appear as discretionary sales as reported. A practical item to watch is any future Form 4 activity by NPEH, 8 Rivers, or Mr. Beauchamp, to see whether this is an isolated adjustment or part of an ongoing reduction in indirect ownership over the coming months.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

8 Rivers Capital, LLC

(Last) (First) (Middle)

406 BLACKWELL STREET, 4TH FLOOR

(Street)

DURHAM NC 27701

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NET Power Inc. [ NPWR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/17/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	11/17/2025		S		338,653	D	$2.8096(1)	3,500,000	I	By: NPEH, LLC(3)(4)
Class A Common Stock	11/19/2025		S		250,000	D	$2.568(2)	3,250,000	I	By: NPEH, LLC(3)(4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person^*

8 Rivers Capital, LLC

(Last) (First) (Middle)

406 BLACKWELL STREET, 4TH FLOOR

(Street)

DURHAM NC 27701

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

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)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

Explanation of Responses:

1. 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 $2.76 to $2.885. 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.

2. 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 $2.505 to $2.715. 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.

3. 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.

4. 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 or her 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.

	By: /s/ Min Lee, General Counsel of 8 Rivers Capital, LLC	11/19/2025
	By: /s/ Damian R. Beauchamp	11/19/2025
	** Signature of Reporting Person	Date
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