As of November 6, 2026, NET Power Inc. is a publicly traded company (NYSE: NPWR). The largest holder reporting an active stake on Schedule 13D is SK Inc., at 25.6%. No bankruptcy or receivership appears in its SEC Form 8-K filings (Schedule 13D/A, August 1, 2025).
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Is NET Power Inc. a real, registered company?
- NET Power Inc. files with the SEC under CIK 1845437 (its SEC filings).
- Its shares are listed under the ticker NPWR on NYSE (also NPWR-WT) (SEC company record).
- Incorporated in Delaware; business address in Houston, Texas, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under NET Power Inc. in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names 8 Rivers Capital, LLC (filed 2026-08-17).
Who are NET Power Inc.'s owners and officers?
NET Power Inc.: incorporated in Delaware; business address in Houston, Texas; industry Electrical Industrial Apparatus (Form 8-K, 2026-09-03).
| Report | Holder | Share |
|---|---|---|
| Schedule 13D/A, 2026-08-17 | 8 Rivers Capital, LLC | 17.86% |
| Schedule 13D/A, 2026-05-14 | 8 Rivers Capital, LLC | 19.5% |
| Schedule 13D/A, 2026-01-28 | 8 Rivers Capital, LLC | 21.01% |
| Schedule 13D/A, 2025-12-09 | 8 Rivers Capital, LLC | 22.25% |
| Schedule 13D/A, 2025-11-04 | 8 Rivers Capital, LLC | 23.49% |
| Schedule 13D/A, 2025-10-29 | 8 Rivers Capital, LLC | 23.61% |
| Schedule 13D/A, 2025-08-01 | Sk Inc. | 25.6% |
| Schedule 13D/A, 2025-07-17 | Sk Inc. | 25.6% |
Questions about who owns NET Power Inc.
Who owns NET Power Inc.?
On this page, 2 holders' latest ownership filings report 5% or more of NET Power Inc.: Sk Inc. (25.6%, Schedule 13D/A, filed 2025-08-01) and 8 Rivers Capital, LLC (17.86%, Schedule 13D/A, filed 2026-08-17).
Who are the largest shareholders of NET Power Inc.?
By the share each holder's latest filing reports, the largest holders of NET Power Inc. on this page are Sk Inc. (25.6%) and 8 Rivers Capital, LLC (17.86%).
When did Sk Inc. buy into NET Power Inc.?
The filings give report dates, not purchase dates. The earliest filing from Sk Inc. on this page is the Schedule 13D/A, filed 2025-07-17, reporting 25.6%; its latest, Schedule 13D/A filed 2025-08-01, reports 25.6%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 8 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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What They Do, And How The Money Works
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Which insiders own NET Power Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a 10% owner: 1,847,130 shares, held indirectly (the form names the holder only in its footnotes) (Form 4, 2025-11-04).
- , a 10% owner: 750,000 shares, held indirectly through By: NPEH, LLC, on a joint filing (Form 4, 2026-09-10).
- 8 Rivers Capital, LLC, a 10% owner: 750,000 shares, held indirectly through By: NPEH, LLC, on a joint filing (Form 4, 2026-09-10).
- Npeh, LLC, a 10% owner: 750,000 shares (Form 4, 2026-09-10).
- , a director: 30,103 shares (Form 4, 2025-04-11).
Shares only: the company's cover page does not give one share count for a single class, so no percentage is worked out.
How much has NET Power Inc. raised?
Acquisitions reported on Form 8-K, Item 2.01: completed an acquisition (2026-09-03).
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More on NET Power Inc. and the records around it.
NET Power Inc. elsewhere on the record
- 5%+ stake filings Aug 2026
Related pages
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