Form 4 for NPWR Net Power Inc.

Accepted 2026-03-02 00:00:00 ET · period of report 2026-02-26 · accession 0001104659-26-022378 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
M	2026-03-02	2026-02-26+	NPWR	NPEH, LLC	10%	S - Sale	$2.05	-86.5K	584.6K	-13%	-$177.0K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Class A Common Stock	2026-03-02	S	D	79,858	$2.05	500,000	D	—	—	(F3) 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 $2.00 to $2.10. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
2	Common	Class A Common Stock	2026-02-27	S	D	4,744	$2.00	579,858	D	—	—	(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 $2.00 to $2.005. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.
3	Common	Class A Common Stock	2026-02-26	S	D	1,881	$2.00	584,602	D	—	—	(F1) The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at a price of $2.00. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.