Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13D/A

Active or control-oriented beneficial ownership filing.

Ownership

24%

Beneficial ownership of this reported class.

Shares

24,702,880 shares

Shares beneficially owned as disclosed.

Event date

27 Oct 2025

Date tied to the ownership event or amendment.

Accepted by SEC

29 Oct 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
NPWR
Shares outstanding
104,628,886 shares
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13D/A
Accepted by SEC
29 Oct 2025, 20:40:49 UTC
Event date
27 Oct 2025
Next SEC filing
04 Nov 2025
Source filing
View source filing

Key filing fact

8 Rivers Capital, LLC disclosed 24% ownership in NET Power Inc. Class A Common Stock, par value $0.0001 (NPWR) on 27 Oct 2025.

Key facts

  • 8 Rivers Capital, LLC filed SCHEDULE 13D/A for NET Power Inc. Class A Common Stock, par value $0.0001 (NPWR).
  • Disclosed ownership: 24%.
  • Date of event: 27 Oct 2025.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 29 Oct 2025, 20:40.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (8)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
8 Rivers Capital, LLC 24% 24,702,880 0 24,702,880 /s/ Min Lee Min Lee, General Counsel 0001981100
NPEH, LLC 24% 24,702,880 0 24,702,880 /s/ Min Lee Min Lee, General Counsel
TILLANDSIA, INC. 0% 0 0 0 /s/ Damian Beauchamp Damian Beauchamp, Authorized Representative
ARECA, INC. 0% 0 0 0 /s/ Damian Beauchamp Damian Beauchamp, Authorized Representative
CHAMAEDOREA, INC. 0% 0 0 0 /s/ Damian Beauchamp Damian Beauchamp, Authorized Representative
Damian Beauchamp 24% 24,702,880 0 24,702,880 /s/ Damian Beauchamp Damian Beauchamp
8RCH, LLC 24% 24,702,880 0 24,702,880 /s/ Damian Beauchamp Damian Beauchamp, President and Secretary
Cynda Beauchamp 24% 24,702,880 0 24,702,880 /s/ Cynda Beauchamp Cynda Beauchamp
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