Major holder NPEH, LLC trims NET Power (NPWR) stake by 175,000 shares

Rhea-AI Filing Summary

NET Power Inc. major shareholder NPEH, LLC, a ten percent owner, reported open-market sales of Class A common stock. On February 13, 2026, it sold 100,000 shares at a weighted average price of $2.1414 per share. On February 18, 2026, it sold an additional 75,000 shares at a weighted average price of $2.0692 per share, bringing total reported sales to 175,000 shares. After these transactions, NPEH, LLC held 775,000 shares of NET Power Class A common stock directly.

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

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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^*

NPEH, 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)
02/13/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	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	02/13/2026		S		100,000	D	$2.1414(1)	850,000	D
Class A Common Stock	02/18/2026		S		75,000	D	$2.0692(2)	775,000	D

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

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 $2.10 to $2.215. 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 $2.045 to $2.115. 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.

	By: /s/ Min Lee, General Counsel of 8 Rivers Capital, LLC, its Manager	02/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider activity did NPEH, LLC report for NET Power (NPWR)?

NPEH, LLC reported selling NET Power Class A common stock in two open-market transactions, totaling 175,000 shares. These sales occurred on February 13, 2026 and February 18, 2026, and were disclosed in a Form 4 insider trading report.

How many NET Power (NPWR) shares did NPEH, LLC sell on each date?

NPEH, LLC sold 100,000 shares of NET Power Class A stock on February 13, 2026, and 75,000 shares on February 18, 2026. Both were reported as open-market sales of non-derivative securities.

What prices did NPEH, LLC receive for its NET Power (NPWR) share sales?

The February 13, 2026 sale had a weighted average price of $2.1414 per share. The February 18, 2026 sale had a weighted average price of $2.0692 per share, reflecting execution across multiple individual trades at different prices.

How many NET Power (NPWR) shares does NPEH, LLC own after these sales?

Following the reported transactions, NPEH, LLC directly held 775,000 shares of NET Power Class A common stock. This post-transaction balance is disclosed in the Form 4 as the total shares beneficially owned after the most recent sale.

Is NPEH, LLC considered a major NET Power (NPWR) shareholder?

Yes. NPEH, LLC is identified as a ten percent owner of NET Power Inc. in the Form 4. This status subjects the entity to Section 16 reporting requirements for transactions in the company’s equity securities.

What type of transactions did NPEH, LLC execute in NET Power (NPWR) stock?

NPEH, LLC executed open-market sales of NET Power Class A common stock, coded as transaction type “S” for non-derivative securities. The Form 4 describes these as sales in the open market or private transactions.