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Net Power Inc. (NPWR)

Net Power Inc. (NPWR) Insider Trading

Directors, officers and holders of more than 10% of NPWR report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 253 transactions on file: 0 with code P, 42 with code S and 8 with other codes.

DateInsiderCodeShares
Sep 9, 2026NPEH, LLCS Sale150,000
Sep 9, 20268 Rivers Capital, LLCS Sale150,000
Sep 8, 2026NPEH, LLCS Sale100,000
Sep 8, 20268 Rivers Capital, LLCS Sale100,000
Aug 26, 2026NPEH, LLCS Sale41,350
Aug 26, 20268 Rivers Capital, LLCS Sale41,350
Aug 25, 20268 Rivers Capital, LLCS Sale201,550
Aug 25, 2026NPEH, LLCS Sale201,550
Aug 14, 20268 Rivers Capital, LLCS Sale507,100
Aug 14, 2026NPEH, LLCS Sale507,100
Aug 13, 2026NPEH, LLCS Sale200,000
Aug 13, 20268 Rivers Capital, LLCS Sale200,000
Aug 12, 2026NPEH, LLCS Sale50,000
Aug 12, 20268 Rivers Capital, LLCS Sale50,000
Aug 11, 20268 Rivers Capital, LLCS Sale35,000
Aug 11, 2026NPEH, LLCS Sale35,000
Aug 10, 2026NPEH, LLCS Sale55,400
Aug 10, 20268 Rivers Capital, LLCS Sale55,400
Aug 7, 20268 Rivers Capital, LLCS Sale60,345
Aug 7, 2026NPEH, LLCS Sale60,345
Aug 6, 2026NPEH, LLCS Sale89,255
Aug 6, 20268 Rivers Capital, LLCS Sale89,255
Aug 5, 20268 Rivers Capital, LLCS Sale140,000
Aug 5, 2026NPEH, LLCS Sale140,000
Aug 4, 2026NPEH, LLCS Sale120,000
Aug 4, 20268 Rivers Capital, LLCS Sale120,000
Jul 30, 20268 Rivers Capital, LLCS Sale155,000
Jul 30, 2026NPEH, LLCS Sale155,000
Jul 29, 2026NPEH, LLCS Sale45,000
Jul 29, 20268 Rivers Capital, LLCS Sale45,000
Jul 28, 2026NPEH, LLCS Sale55,858
Jul 28, 20268 Rivers Capital, LLCS Sale55,858
Jul 23, 2026NPEH, LLCS Sale39,142
Jul 23, 20268 Rivers Capital, LLCS Sale39,142
Jul 22, 2026NPEH, LLCS Sale90,000
Jul 22, 20268 Rivers Capital, LLCS Sale90,000
Jul 21, 2026NPEH, LLCS Sale80,000
Jul 21, 20268 Rivers Capital, LLCS Sale80,000
Jun 3, 2026Veltmann AlejandraA Award71,770
Jun 3, 2026Kelliher Joseph TA Award71,770
Jun 3, 2026PETERSON CAROL R.A Award71,770
Jun 3, 2026Alexander RalphA Award71,770
May 13, 2026NPEH, LLCS Sale35,000
May 13, 20268 Rivers Capital, LLCS Sale35,000
May 12, 2026NPEH, LLCS Sale400,000
May 12, 20268 Rivers Capital, LLCS Sale400,000
Apr 13, 2026Shuman Ned LelandA Award529,801
Mar 6, 2026NPEH, LLCC Conversion3,000,000
Mar 6, 2026NPEH, LLCJ Other3,000,000
Mar 6, 20268 Rivers Capital, LLCC Conversion3,000,000

The full Form 4 history is on the NPWR company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.