Form 4 for NPWR Net Power Inc.

Accepted 2026-08-11 18:00:31 ET · period of report 2026-08-07 · accession 0001104659-26-094207 · 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	2026-08-11 18:00	2026-08-07+	NPWR	NPEH, LLC	10%	S - Sale	$1.55	-150.7K	2.00M	-7%	-$234.1K

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	2026-08-07	S	D	60,345	$1.53	2,090,400	D	—	—	(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 $1.50 to $1.55. 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.
2	Common	Class A Common Stock	2026-08-10	S	D	55,400	$1.55	2,035,000	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 $1.525 to $1.57. 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	2026-08-11	S	D	35,000	$1.60	2,000,000	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 $1.54 to $1.625. 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.