NPWR- Net Power Inc.

Name: Net Power Inc. Insider Trading Data
Creator: U.S. Securities and Exchange Commission
License: https://www.sec.gov/privacy#accessibility

Net Power Inc. (NPWR) has 9 insiders with recent SEC Form 4 filings, including 0 buys and 24 sells. NPWR is classified in the Machinery industry within the Industrials sector.

Insider Ownership

Role	Insider	Shares	Value	30d
10%	8 Rivers Capital, LLC	1.55M	$3.74M	-
10%	Npeh, LLC	1.55M	$3.74M	-
COO	Horstman Marc	240.0K	$578.4K	-
Dir	Peterson Carol R.	104.4K	$251.6K	-
Dir	Alexander Ralph	104.4K	$251.6K	-

Activity

Buys and sells only

Transactions

10 filings · page 3

Date	Insider	Role	Type	Shares	Price	Value	Chg%	3M	12M
Oct 30, 2025	Npeh, LLC84	10% Owner	Sell	902,171	$4.10	$3,702,731.82	-12.0%	-41.1%	-
Oct 27, 2025	Npeh, LLC84	10% Owner	Sell	516,683	$3.72	$1,922,281.58	-5.6%	-36.0%	-
Oct 27, 2025	8 Rivers Capital, LLC83	10% Owner	Sell	516,683	$3.72	$1,922,281.58	-5.6%	-36.0%	-
Oct 22, 2025	Npeh, LLC84	10% Owner	Sell	479,300	$3.51	$1,681,951.81	-4.5%	-26.3%	-
Oct 22, 2025	8 Rivers Capital, LLC83	10% Owner	Sell	479,300	$3.51	$1,681,951.81	-4.5%	-26.3%	-
Oct 16, 2025	Npeh, LLC84	10% Owner	Sell	236,600	$4.85	$1,147,218.83	-2.0%	-32.7%	-
Oct 16, 2025	8 Rivers Capital, LLC83	10% Owner	Sell	236,600	$4.85	$1,147,218.83	-2.0%	-32.7%	-
Jul 15, 2025	Sk Inc.	10% Owner	Sell	2,500,000	$2.61	$6,525,000.00	-100%	+33.7%	-
Apr 3, 2025	Rosser Kelly	Chief Accounting Officer	Sell	1,127	$2.25	$2,531.02	-30.8%	+12.4%	-31.4%
Apr 3, 2025	Patel Akash S.	Chief Financial Officer	Sell	7,359	$2.29	$16,870.51	-100%	+12.4%	-31.4%

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Insider	Role	Shares	Value	Buys	Sells

Date	Ticker	Insider	Role	Type	Shares	Price	Value	Chg%	SEC