NET Power Inc. has 8 Schedule 13D or 13G filings on record since 2025-07-17. 2 holders' latest filing reports 5% or more of class a common stock, par value $0.0001. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Sk Inc. | 25.6% | 0 | SCHEDULE 13D/A, 2025-08-01 | 2025-07-30 |
| 8 Rivers Capital, LLC | 17.86% | 18,972,780 | SCHEDULE 13D/A, 2026-08-17 | 2026-08-13 |
Purpose of Transaction (Item 4)
Sk Inc.
The information contained in Item 4 of Schedule 13D is hereby amended and supplemented by adding the following information: On July 30, 2025, SK, which directly owned 100% of each of Tillandsia, Areca and Chamaedorea, sold its interests in each of Tillandsia, Areca and Chamaedorea to Mr. Beauchamp and 8RCH. Following the Sale, Mr. Beauchamp directly owns 50% of each of Tillandsia, Areca and Chamaedorea and 8RCH directly owns 50% of Tillandsia, Areca and Chamaedorea. Following the Sale, SK no longer beneficially owns 5% or greater of the Issuer's Class A Common Stock, and is therefore no longer a Reporting Person.Item 4 of the SCHEDULE 13D/A filed 2025-08-01
8 Rivers Capital, LLC
The information contained in Item 4 of Schedule 13D is hereby amended and supplemented by adding the following information: Between May 14, 2026, and August 17, 2026, NPEH sold 1,722,100 shares of Class A Common Stock held by it.Item 4 of the SCHEDULE 13D/A filed 2026-08-17
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-17 | Sk Inc. | 25.6% | SCHEDULE 13D/A |
| 2025-08-01 | Sk Inc. | 25.6% | SCHEDULE 13D/A |
| 2025-10-29 | 8 Rivers Capital, LLC | 23.61% | SCHEDULE 13D/A |
| 2025-11-04 | 8 Rivers Capital, LLC | 23.49% | SCHEDULE 13D/A |
| 2025-12-09 | 8 Rivers Capital, LLC | 22.25% | SCHEDULE 13D/A |
| 2026-01-28 | 8 Rivers Capital, LLC | 21.01% | SCHEDULE 13D/A |
| 2026-05-14 | 8 Rivers Capital, LLC | 19.5% | SCHEDULE 13D/A |
| 2026-08-17 | 8 Rivers Capital, LLC | 17.86% | SCHEDULE 13D/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.