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Net Power Inc.

NPWR
Exchange
NYSE
Industry
Electrical Industrial Apparatus
SEC CIK
0001845437

In the last 90 days, Net Power Inc. insiders filed 0 open-market purchases and 7 sales; 120 institutions reported holding it in 13F filings for Q2 2026, worth $64.1M in total; no superinvestor holds it.

Other share classesNPWR.WT

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Net Power Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
7 filings
2 insiders, $3.78M in total
Insiders trading
2
Net value
−$3.78M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Net Power Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Net Power Inc.
NameTitleLast reported holdingLast filingFilings, past year
Beauchamp Damian R.10% Owner750,000IndirectSep 10, 202629
8 Rivers Capital, LLC10% Owner750,000IndirectSep 10, 202629
Npeh, LLC10% Owner750,000Sep 10, 202629
Veltmann AlejandraDirector176,151Aug 31, 20261
Peterson Carol R.Director176,151Aug 31, 20261
Kelliher Joseph TDirector176,151Aug 31, 20261
Alexander RalphDirector176,151Aug 31, 20261
Beauchamp Cynda10% Owner0IndirectNov 4, 20255
SK Inc.10% Owner0IndirectJul 31, 20250
Horstman MarcChief Operating Officer–Jun 4, 20250
Rosser KellyChief Accounting Officer2,531Apr 7, 20250
Allen Brian F.COO and President568,939Apr 4, 20250
Patel Akash S.Chief Financial Officer0Apr 4, 20250
Mahon JamesGeneral Counsel and Secretary0Sep 14, 20230
Heffinger BrandonChief Commercial Officer0Sep 5, 20230
Derham KyleDirector1,676,668IndirectAug 18, 20230
Rice Acquisition Sponsor II LLCOther: Former Director and 10% owner0Jun 30, 20230
Lytal James HDirector30,000Jun 12, 20230
Rogers James WilmotChief Accounting Officer–Jun 12, 20230
Rice Daniel J. IVChief Executive Officer7,535,000IndirectJun 12, 20230
Fox Carrie MDirector30,000Jun 12, 20230
Famuagun JideDirector30,000Jun 12, 20230
Forrest BrockChief Technology Officer596,917IndirectJun 12, 20230

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Oct 30, 2025 (view filing)Oct 28-302 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−902.2K$4.11−$3.71M−32.6%1.87M after3 lots
Oct 27, 2025 (view filing)7:54 PM ETOct 23-274 daysBeauchamp Damian R. and 2 others10% OwnerSSaleClass A Common Stock−516.7K$3.72−$1.92M−15.7%2.77M after3 lots
Oct 27, 2025 (view filing)Oct 23-274 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−516.7K$3.72−$1.92M−15.7%2.77M after3 lots
Oct 22, 2025 (view filing)8:55 PM ETOct 20-222 daysBeauchamp Damian R. and 2 others10% OwnerSSaleClass A Common Stock−479.3K$3.51−$1.68M−12.7%3.28M after3 lots
Oct 22, 2025 (view filing)Oct 20-222 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−479.3K$3.51−$1.68M−12.7%3.28M after3 lots
Oct 16, 2025 (view filing)9:01 PM ETOct 15-161 dayBeauchamp Damian R. and 2 others10% OwnerSSaleClass A Common Stock−236.6K$4.85−$1.15M−5.9%3.76M after3 lots
Oct 16, 2025 (view filing)Oct 15-161 dayNpeh, LLC10% OwnerSSaleClass A Common Stock−236.6K$4.85−$1.15M−5.9%3.76M after3 lots
Jul 17, 2025 (view filing)Jul 152 daysSK Inc.10% OwnerSSaleClass A Common Stock−2.50M$2.61−$6.53M−100.0%0 after
Apr 7, 2025 (view filing)Apr 34 daysRosser KellyChief Accounting OfficerSSaleClass A Common Stock−1.13K$2.25−$2.54K−30.8%2.53K after
Apr 4, 2025 (view filing)Apr 31 dayPatel Akash S.Chief Financial OfficerSSaleClass A Common Stock−7.36K$2.29−$16.9K−100.0%0 after
Nov 26, 2024 (view filing)9:00 PM ETNov 224 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−431.0K$12.76−$5.50M−100.0%0 after
Nov 26, 2024 (view filing)Nov 224 daysPatel Akash S.Chief Financial OfficerSSaleClass A Common Stock−150.0K$12.65−$1.90M−100.0%0 after10b5-1
Nov 26, 2024 (view filing)Nov 224 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−431.0K$12.76−$5.50M−100.0%0 after
Nov 21, 2024 (view filing)8:37 PM ETNov 20-211 daySK Inc. and 1 other10% OwnerSSaleClass A Common Stock−829.4K$12.67−$10.5M−65.8%431.0K after2 lots
Nov 21, 2024 (view filing)Nov 20-211 dayNpeh, LLC10% OwnerSSaleClass A Common Stock−829.4K$12.67−$10.5M−65.8%431.0K after2 lots
Oct 18, 2024 (view filing)8:00 PM ETOct 16-172 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−717.0K$7.18−$5.15M−100.0%0 after2 lots
Oct 18, 2024 (view filing)Oct 16-172 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−717.0K$7.18−$5.15M−100.0%0 after2 lots
Oct 11, 2024 (view filing)6:32 PM ETOct 9-112 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−243.1K$6.93−$1.69M−25.3%717.0K after2 lots
Oct 11, 2024 (view filing)Oct 9-112 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−243.1K$6.94−$1.69M−25.3%717.0K after2 lots
Oct 7, 2024 (view filing)6:47 PM ETOct 3-74 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−24.7K$7.00−$173.2K−100.0%0 after3 lots
Oct 7, 2024 (view filing)6:47 PM ETOct 7Same daySK Inc. and 1 other10% OwnerSSaleClass A Common Stock−54.9K$7.00−$384.5K−5.4%960.1K after
Oct 7, 2024 (view filing)Oct 7Same dayNpeh, LLC10% OwnerSSaleClass A Common Stock−54.9K$7.00−$384.5K−5.4%960.1K after
Oct 2, 2024 (view filing)5:28 PM ETSep 302 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−46.6K$7.07−$329.3K−65.3%24.7K after
Oct 2, 2024 (view filing)5:27 PM ETSep 20-2312 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−28.7K$7.00−$200.9K−28.7%71.3K afterAmended2 lots
Sep 19, 2024 (view filing)7:15 PM ETSep 17-192 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−567.4K$7.05−$4.00M−100.0%0 after3 lots
Sep 19, 2024 (view filing)7:15 PM ETSep 19Same daySK Inc. and 1 other10% OwnerSSaleClass A Common Stock−400.0K$7.05−$2.82M−80.0%100.0K after
Sep 19, 2024 (view filing)Sep 17-192 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−567.4K$7.05−$4.00M−100.0%0 after3 lots
Sep 16, 2024 (view filing)9:57 PM ETSep 12-164 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−40.4K$7.07−$285.7K−37.5%67.4K after3 lots
Sep 16, 2024 (view filing)Sep 12-164 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−40.4K$7.07−$285.6K−37.5%67.4K after3 lots
Sep 11, 2024 (view filing)8:07 PM ETSep 9-112 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−81.5K$7.52−$612.7K−43.0%107.9K after3 lots
Sep 11, 2024 (view filing)Sep 9-112 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−81.5K$7.52−$612.4K−43.0%107.9K after3 lots
Sep 6, 2024 (view filing)9:28 PM ETSep 4-62 daysSK Inc. and 1 other10% OwnerSSaleClass A Common Stock−310.7K$7.97−$2.48M−62.1%189.3K after3 lots
Sep 6, 2024 (view filing)Sep 4-62 daysNpeh, LLC10% OwnerSSaleClass A Common Stock−310.7K$7.97−$2.48M−62.1%189.3K after3 lots
May 28, 2024 (view filing)May 235 daysSK Inc.10% OwnerSSaleClass A Common Stock−2.50M$10.04−$25.1M−50.0%2.50M after
Sep 14, 2023 (view filing)Sep 12-132 daysMahon JamesGeneral Counsel and SecretarySSaleClass A Common Stock−31.4K$15.11−$474.3K−100.0%0 after2 lots
Sep 12, 2023 (view filing)Sep 8-114 daysMahon JamesGeneral Counsel and SecretarySSaleClass A Common Stock−40.0K$15.41−$616.4K−56.0%31.4K after2 lots
Sep 8, 2023 (view filing)Sep 6-72 daysMahon JamesGeneral Counsel and SecretarySSaleClass A Common Stock−28.6K$15.22−$435.4K−28.6%71.4K after2 lots
Sep 5, 2023 (view filing)Sep 14 daysHeffinger BrandonChief Commercial OfficerSSaleClass A Common Stock−34.9K$14.19−$494.6K−100.0%0 after
Sep 1, 2023 (view filing)Aug 30-312 daysHeffinger BrandonChief Commercial OfficerSSaleClass A Common Stock−115.1K$14.18−$1.63M−76.8%34.9K after2 lots
Aug 23, 2023 (view filing)Aug 212 daysHeffinger BrandonChief Commercial OfficerSSaleClass A Common Stock−27.8K$15.19−$421.8K−100.0%0 after
Aug 21, 2023 (view filing)Aug 17-184 daysHeffinger BrandonChief Commercial OfficerSSaleClass A Common Stock−122.2K$15.12−$1.85M−81.5%27.8K after2 lots