# EDGAR Filing Document

**Accession Number:** 0001973442
**File Stem:** 0001104659-25-076176
**Filing Date:** 2025-8
**Character Count:** 6744
**Document Hash:** 05f037ca724c78e10390ca99eaa0235a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-076176.hdr.sgml**: 20250811

**ACCESSION NUMBER**: 0001104659-25-076176

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250730

**FILED AS OF DATE**: 20250811

**DATE AS OF CHANGE**: 20250811

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** BEAUCHAMP DAMIAN R.
- **CENTRAL INDEX KEY:** 0001973442

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40503
- **FILM NUMBER:** 251202455

**MAIL ADDRESS:**
- **STREET 1:** C/O NET POWER, LLC
- **STREET 2:** 404 HUNT STREET, STE 410
- **CITY:** DURHAM
- **STATE:** NC
- **ZIP:** 27701
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Beauchamp Cynda
- **CENTRAL INDEX KEY:** 0002079418

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40503
- **FILM NUMBER:** 251202454

**MAIL ADDRESS:**
- **STREET 1:** 8 THE GREEN STE B
- **CITY:** DOVER
- **STATE:** DE
- **ZIP:** 19901
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NET Power Inc.
- **CENTRAL INDEX KEY:** 0001845437
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRICAL INDUSTRIAL APPARATUS [3620]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 981580612
- **STATE OF INCORPORATION:** NC
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 320 RONEY STREET, SUITE 200
- **CITY:** DURHAM
- **STATE:** NC
- **ZIP:** 27701
- **BUSINESS PHONE:** (919) 287-4750

**MAIL ADDRESS:**
- **STREET 1:** 320 RONEY STREET, SUITE 200
- **CITY:** DURHAM
- **STATE:** NC
- **ZIP:** 27701

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Rice Acquisition Corp. II
- **DATE OF NAME CHANGE:** 20210210

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>BEAUCHAMP DAMIAN R.<br><sub>(Last) (First) (Middle)</sub><br>406 BLACKWELL STREET, 4TH FLOOR<br><sub>(Street)</sub><br>DURHAM, NC 27701<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>NET Power Inc. [ NPWR ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-07-30 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Beauchamp Cynda<br><sub>(Last) (First) (Middle)</sub><br>8 THE GREEN STE B<br><sub>(Street)</sub><br>DOVER, DE 19901<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>NET Power Inc. [ NPWR ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-07-30 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Class B Common Stock | 26729880 | I | See Footnotes<sup>(1)(2)</sup> |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Class A Units of NET Power Operations LLC | <sup>(2)</sup> | <sup>(2)</sup> | Class A Common Stock | 26729880 | <sup>(2)</sup> | I | See Footnotes<sup>(1)(2)</sup> |

---

### Footnotes:

(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.

**Signature:** /s/ Damian R. Beauchamp  
**Date:** 2025-08-08

**Signature:** /s/ Cynda Beauchamp  
**Date:** 2025-08-08

### Remarks:

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 4 (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.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**