NET Power Inc. (NPWR) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-05-14

NET Power Inc. (NPWR) has filed 4 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-14. 2 Form 8-K material event filings were reported by NPWR in the last 90 days. InsiderAlpha tracks every NPWR SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About NET Power Inc. (NPWR)

SIC classification	Electrical Industrial Apparatus (SIC 3620)
SEC CIK	0001845437

90-Day SEC Filing Activity

Form 4 filings (90d)	4
Form 8-K filings (90d)	2
Latest Form 4 filing	2026-05-14

Recent NPWR Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-05-13	NPEH, LLC	10% Owner	S — Open-market sale	35.0K	$2.43	$85K	SEC
2026-05-13	8 Rivers Capital, LLC	10% Owner	S — Open-market sale	35.0K	$2.43	$85K	SEC
2026-05-12	NPEH, LLC	10% Owner	S — Open-market sale	400.0K	$2.44	$976K	SEC
2026-05-12	8 Rivers Capital, LLC	10% Owner	S — Open-market sale	400.0K	$2.44	$976K	SEC
2026-03-06	8 Rivers Capital, LLC	10% Owner	J — Other acquisition / disposition	3.00M	—	—	SEC
2026-03-06	NPEH, LLC	10% Owner	J — Other acquisition / disposition	3.00M	—	—	SEC
2026-03-06	NPEH, LLC	10% Owner	J — Other acquisition / disposition	3.00M	—	—	SEC
2026-03-06	8 Rivers Capital, LLC	10% Owner	J — Other acquisition / disposition	3.00M	—	—	SEC
2026-03-06	NPEH, LLC	10% Owner	J — Other acquisition / disposition	3.00M	—	—	SEC
2026-03-06	8 Rivers Capital, LLC	10% Owner	J — Other acquisition / disposition	3.00M	—	—	SEC
2026-03-06	8 Rivers Capital, LLC	10% Owner	J — Other acquisition / disposition	3.00M	—	—	SEC
2026-03-06	NPEH, LLC	10% Owner	J — Other acquisition / disposition	3.00M	—	—	SEC
2026-03-03	NPEH, LLC	10% Owner	S — Open-market sale	100.0K	$2.04	$204K	SEC
2026-03-03	8 Rivers Capital, LLC	10% Owner	S — Open-market sale	100.0K	$2.04	$204K	SEC
2026-03-02	NPEH, LLC	10% Owner	S — Open-market sale	79.9K	$2.05	$164K	SEC

All transactions sourced from SEC EDGAR Form 4 filings for NET Power Inc. (NPWR). Updated in real time as new filings are submitted to the SEC.

Most-Active NPWR Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
8 Rivers Capital, LLC	5	$1.06M
NPEH, LLC	5	$1.06M

Recent NPWR Form 8-K Material Events

2026-06-05 — Item 5.07 [SEC]
2026-05-11 — Item 2.02, 9.01 [SEC]
2026-04-13 — Item 5.02 · Leadership · neutral [SEC]
NET Power Inc. appointed Ned Leland Shuman as Chief Financial Officer, effective April 13, 2026, replacing interim CFO Daniel J. Rice IV. Shuman brings 25+ years of power-sector finance experience, including prior roles at WattBridge Energy and Javelin Global Commodities.
2026-03-09 — Item 2.02, 9.01 · Earnings · neutral [SEC]
NET Power Inc. issued a press release on March 9, 2026 reporting financial results for the quarter and year ended December 31, 2025. The filing provides standard financial results disclosure without explicit beat/miss language or forward guidance changes.

Recent Insider Filings

2026-05-14 — NPEH, LLC (10% Owner)
2026-05-14 — 8 Rivers Capital, LLC (10% Owner)
2026-05-13 — NPEH, LLC (10% Owner)
2026-05-13 — 8 Rivers Capital, LLC (10% Owner)
2026-03-10 — 8 Rivers Capital, LLC (10% Owner)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NPWR insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

NPWR Insider Trading — FAQ

What is the latest insider trade for NPWR?: NET Power Inc. (NPWR) had 4 insider filings in the last 90 days, with the most recent on 2026-05-14. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying NPWR stock?: 0 insider purchases of NPWR were filed in the last 90 days.
How many insiders are selling NPWR stock?: 0 insider sales of NPWR were filed in the last 90 days.
Where can I see NPWR SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every NPWR SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

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