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Net Power Inc.

NPWR · CIK 0001845437

SEC FORM 4
$276,075.00

Net Power Inc. (NPWR)

Sale of 150,000 shares at $1.8405 per share.

Reporting Person NPEH, LLC · Transaction Code S

Traded Sep 9, 2026 · Disclosed Sep 10, 2026

Source: SEC Form 4 · 0001104659-26-106786 · filed 2026-09-10 · View filing →

SEC FORM 4
$276,075.00

Net Power Inc. (NPWR)

Sale of 150,000 shares at $1.8405 per share.

Reporting Persons 8 Rivers Capital, LLC · BEAUCHAMP DAMIAN R. · Transaction Code S

Traded Sep 9, 2026 · Disclosed Sep 10, 2026

Source: SEC Form 4 · 0001104659-26-106788 · filed 2026-09-10 · View filing →

SEC FORM 4
$193,520.00

Net Power Inc. (NPWR)

Sale of 100,000 shares at $1.9352 per share.

Reporting Person NPEH, LLC · Transaction Code S

Traded Sep 8, 2026 · Disclosed Sep 10, 2026

Source: SEC Form 4 · 0001104659-26-106786 · filed 2026-09-10 · View filing →

SEC FORM 4
$193,520.00

Net Power Inc. (NPWR)

Sale of 100,000 shares at $1.9352 per share.

Reporting Persons 8 Rivers Capital, LLC · BEAUCHAMP DAMIAN R. · Transaction Code S

Traded Sep 8, 2026 · Disclosed Sep 10, 2026

Source: SEC Form 4 · 0001104659-26-106788 · filed 2026-09-10 · View filing →

SEC FORM 4
$0.00

Net Power Inc. (NPWR)

Acquisition (code A) of 71,770 shares at $0 per share.

Reporting Person Alexander Ralph · Transaction Code A

Traded Jun 3, 2026 · Disclosed Aug 31, 2026FILED +89 DAYS

Source: SEC Form 4 · 0001358507-26-000003 · filed 2026-08-31 · View filing →

SEC FORM 4
$0.00

Net Power Inc. (NPWR)

Acquisition (code A) of 71,770 shares at $0 per share.

Reporting Person Kelliher Joseph T · Transaction Code A

Traded Jun 3, 2026 · Disclosed Aug 31, 2026FILED +89 DAYS

Source: SEC Form 4 · 0001464551-26-000006 · filed 2026-08-31 · View filing →

SEC FORM 4
$0.00

Net Power Inc. (NPWR)

Acquisition (code A) of 71,770 shares at $0 per share.

Reporting Person Veltmann Alejandra · Transaction Code A

Traded Jun 3, 2026 · Disclosed Aug 31, 2026FILED +89 DAYS

Source: SEC Form 4 · 0001564633-26-000002 · filed 2026-08-31 · View filing →

SEC FORM 4
$0.00

Net Power Inc. (NPWR)

Acquisition (code A) of 71,770 shares at $0 per share.

Reporting Person PETERSON CAROL R. · Transaction Code A

Traded Jun 3, 2026 · Disclosed Aug 31, 2026FILED +89 DAYS

Source: SEC Form 4 · 0001973456-26-000007 · filed 2026-08-31 · View filing →

SEC FORM 4
$79,077.74

Net Power Inc. (NPWR)

Sale of 41,350 shares at $1.9124 per share.

Reporting Persons 8 Rivers Capital, LLC · BEAUCHAMP DAMIAN R. · Transaction Code S

Traded Aug 26, 2026 · Disclosed Aug 27, 2026

Source: SEC Form 4 · 0001104659-26-102532 · filed 2026-08-27 · View filing →

SEC FORM 4
$79,077.74

Net Power Inc. (NPWR)

Sale of 41,350 shares at $1.9124 per share.

Reporting Person NPEH, LLC · Transaction Code S

Traded Aug 26, 2026 · Disclosed Aug 27, 2026

Source: SEC Form 4 · 0001104659-26-102534 · filed 2026-08-27 · View filing →

SEC FORM 4
$384,255.08

Net Power Inc. (NPWR)

Sale of 201,550 shares at $1.9065 per share.

Reporting Persons 8 Rivers Capital, LLC · BEAUCHAMP DAMIAN R. · Transaction Code S

Traded Aug 25, 2026 · Disclosed Aug 27, 2026

Source: SEC Form 4 · 0001104659-26-102532 · filed 2026-08-27 · View filing →

SEC FORM 4
$384,255.08

Net Power Inc. (NPWR)

Sale of 201,550 shares at $1.9065 per share.

Reporting Person NPEH, LLC · Transaction Code S

Traded Aug 25, 2026 · Disclosed Aug 27, 2026

Source: SEC Form 4 · 0001104659-26-102534 · filed 2026-08-27 · View filing →

SEC FORM 4
$990,518.43

Net Power Inc. (NPWR)

Sale of 507,100 shares at $1.9533 per share.

Reporting Persons 8 Rivers Capital, LLC · BEAUCHAMP DAMIAN R. · Transaction Code S

Traded Aug 14, 2026 · Disclosed Aug 14, 2026

Source: SEC Form 4 · 0001104659-26-097369 · filed 2026-08-14 · View filing →

SEC FORM 4
$990,518.43

Net Power Inc. (NPWR)

Sale of 507,100 shares at $1.9533 per share.

Reporting Person NPEH, LLC · Transaction Code S

Traded Aug 14, 2026 · Disclosed Aug 14, 2026

Source: SEC Form 4 · 0001104659-26-097370 · filed 2026-08-14 · View filing →

SEC FORM 4
$323,840.00

Net Power Inc. (NPWR)

Sale of 200,000 shares at $1.6192 per share.

Reporting Persons 8 Rivers Capital, LLC · BEAUCHAMP DAMIAN R. · Transaction Code S

Traded Aug 13, 2026 · Disclosed Aug 14, 2026

Source: SEC Form 4 · 0001104659-26-097369 · filed 2026-08-14 · View filing →

SEC FORM 4
$323,840.00

Net Power Inc. (NPWR)

Sale of 200,000 shares at $1.6192 per share.

Reporting Person NPEH, LLC · Transaction Code S

Traded Aug 13, 2026 · Disclosed Aug 14, 2026

Source: SEC Form 4 · 0001104659-26-097370 · filed 2026-08-14 · View filing →

SEC FORM 4
$81,575.00

Net Power Inc. (NPWR)

Sale of 50,000 shares at $1.6315 per share.

Reporting Persons 8 Rivers Capital, LLC · BEAUCHAMP DAMIAN R. · Transaction Code S

Traded Aug 12, 2026 · Disclosed Aug 14, 2026

Source: SEC Form 4 · 0001104659-26-097369 · filed 2026-08-14 · View filing →

SEC FORM 4
$81,575.00

Net Power Inc. (NPWR)

Sale of 50,000 shares at $1.6315 per share.

Reporting Person NPEH, LLC · Transaction Code S

Traded Aug 12, 2026 · Disclosed Aug 14, 2026

Source: SEC Form 4 · 0001104659-26-097370 · filed 2026-08-14 · View filing →