Form 4 for NPWR Net Power Inc.

Accepted 2026-08-14 18:01:35 ET · period of report 2026-08-12 · accession 0001104659-26-097370 · 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	2026-08-14 18:01	2026-08-12+	NPWR	NPEH, LLC	10%	S - Sale	$1.84	-757.1K	1.24M	-38%	-$1.40M

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	2026-08-12	S	D	50,000	$1.63	1,950,000	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 $1.62 to $1.665. 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	2026-08-13	S	D	200,000	$1.62	1,750,000	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 $1.585 to $1.65. 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	2026-08-14	S	D	507,100	$1.95	1,242,900	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 $1.85 to $2.06. 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.