Transaction · 0001104659-26-102532

8 Rivers Capital, LLC

8 Rivers Capital, LLC, 10%, reported an open-market or private sale at Net Power Inc. involving 201550.000000 shares for an estimated $384255.08. Reported holdings after the transaction were 1041350.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code S10%
NPWRNet Power Inc.
Filing timeAug 27
Trade dateAug 25, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
Pre-filing
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NPWR price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
NPWR since 2026-08-27Filed 7 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001104659-26-102532
Class A Common Stock
Transaction date
Aug 25, 2026
Filed Aug 27, 2026, 10:00 PM · 2d delay
Shares
201k sh
$191 per share
Estimated value
-$38.4M
Computed from shares × price
Holdings after
1.04M sh
Indirect · By: NPEH, LLC

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling
+4score
Filing-only score

+4

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector No10% YesOther No
Footnotes & amended
  1. F1

    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 $1.84 to $2.0091. NPEH, LLC ("NPEH"), will provide…

  2. F2

    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 $1.82 to $1.985. NPEH will provide upon request to…

  3. F3

    As manager and holder of approximately 90.9% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Ri…

  4. F4

    Damian R. Beauchamp ("Mr. Beauchamp") independently indirectly owns approximately 63.70% of 8 Rivers, and Mr. Beauchamp directly owns approximately 3.83% of 8 Rivers. Accordingly, Mr. Beauchamp may be…

Original filing · 0001104659-26-102532
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