Form 4 for NPWR Net Power Inc.

Accepted 2026-07-30 18:00:57 ET · period of report 2026-07-28 · accession 0001104659-26-088828 · 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	2026-07-30 18:00	2026-07-28+	NPWR	NPEH, LLC	10%	S - Sale	$1.43	-255.9K	2.50M	-9%	-$367.0K

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	2026-07-28	S	D	55,858	$1.47	2,700,000	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 $1.415 to $1.495. 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	2026-07-29	S	D	45,000	$1.41	2,655,000	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 $1.40 to $1.41. 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	2026-07-30	S	D	155,000	$1.43	2,500,000	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 $1.40 to $1.47. 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.