NET Power Inc.
US ˙ NYSE ˙ US64107A1051

SecurityNPWR / NET Power Inc.
InsiderNpeh, Llc
This page shows the track record and history of NPEH, LLC insider trades in NET Power Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Npeh, Llc in NPWR / NET Power Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

NPWR / NET Power Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Npeh, Llc in NPWR / NET Power Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2026-05-13 35,000 2.4329 35,000 2.4329 85,152 23 1.6600 -27,051 -31.77
2026-05-12 400,000 2.4389 400,000 2.4389 975,560
2026-03-03 100,000 2.0425 100,000 2.0425 204,250
2026-03-02 79,858 2.0508 79,858 2.0508 163,773
2026-02-27 4,744 2.0003 4,744 2.0003 9,489
2026-02-26 1,881 2.0000 1,881 2.0000 3,762
2026-02-20 63,517 2.0346 63,517 2.0346 129,232
2026-02-19 125,000 2.1411 125,000 2.1411 267,638
2026-02-18 75,000 2.0692 75,000 2.0692 155,190
2026-02-13 100,000 2.1414 100,000 2.1414 214,140
2026-02-12 150,000 2.0307 150,000 2.0307 304,605
2026-02-11 60,000 2.0225 60,000 2.0225 121,350
2026-02-10 40,000 2.0803 40,000 2.0803 83,212
2026-01-29 54,780 2.3485 54,780 2.3485 128,651
2026-01-28 65,220 2.3830 65,220 2.3830 155,419
2026-01-27 100,000 2.3837 100,000 2.3837 238,370
2026-01-26 130,000 2.3549 130,000 2.3549 306,137
2026-01-16 230,000 2.6325 230,000 2.6325 605,475
2026-01-15 135,000 2.5718 135,000 2.5718 347,193
2026-01-14 135,000 2.7379 135,000 2.7379 369,616
2025-12-24 170,000 2.2096 170,000 2.2096 375,632
2025-12-23 130,000 2.1666 130,000 2.1666 281,658
2025-12-22 100,000 2.2646 100,000 2.2646 226,460
2025-12-19 100,000 2.3431 100,000 2.3431 234,310
2025-12-09 40,000 2.8235 40,000 2.8235 112,940
2025-12-08 140,000 2.8091 140,000 2.8091 393,274
2025-12-05 105,000 2.9064 105,000 2.9064 305,172
2025-12-04 65,000 2.9424 65,000 2.9424 191,256
2025-11-28 200,000 2.9354 200,000 2.9354 587,080
2025-11-21 17,163 2.5012 17,163 2.5012 42,928
2025-11-20 132,837 2.5971 132,837 2.5971 344,991
2025-11-19 250,000 2.5680 250,000 2.5680 642,000
2025-11-17 338,653 2.8096 338,653 2.8096 951,479
2025-11-03 8,477 4.0025 8,477 4.0025 33,929
2025-10-31 18,116 4.0527 18,116 4.0527 73,419
2025-10-30 107,754 4.0376 107,754 4.0376 435,068
2025-10-29 786,832 4.1166 786,832 4.1166 3,239,073
2025-10-28 7,585 3.7695 7,585 3.7695 28,592
2025-10-27 200,000 3.7662 200,000 3.7662 753,240
2025-10-24 32,583 3.7039 32,583 3.7039 120,684
2025-10-23 284,100 3.6901 284,100 3.6901 1,048,357
2025-10-22 89,000 3.3071 89,000 3.3071 294,332
2025-10-21 189,300 3.5307 189,300 3.5307 668,362
2025-10-20 201,000 3.5784 201,000 3.5784 719,258
2025-10-16 13,959 4.7061 13,959 4.7061 65,692
2025-10-15 100,000 4.8321 100,000 4.8321 483,210
2025-10-15 122,641 4.8786 122,641 4.8786 598,316
2024-11-22 431,009 12.7590 431,009 12.7590 5,499,244
2024-11-21 509,040 12.7163 509,040 12.7163 6,473,105
2024-11-20 320,371 12.5968 320,371 12.5968 4,035,649
2024-10-17 199,369 7.3268 199,369 7.3268 1,460,737
2024-10-16 517,618 7.1203 517,618 7.1203 3,685,595
2024-10-11 120,500 6.9163 120,500 6.9163 833,414
2024-10-09 122,591 6.9477 122,591 6.9477 851,725
2024-10-07 54,922 7.0015 54,922 7.0015 384,536
2024-09-19 342,364 7.0568 342,364 7.0568 2,415,994
2024-09-18 80,122 7.0211 80,122 7.0211 562,545
2024-09-17 144,959 7.0392 144,959 7.0392 1,020,395
2024-09-16 36,752 7.0506 36,752 7.0506 259,124
2024-09-13 1,340 7.2596 1,340 7.2596 9,728
2024-09-12 2,315 7.2635 2,315 7.2635 16,815
2024-09-11 21,155 7.2844 21,155 7.2844 154,101
2024-09-10 300 7.3100 300 7.3100 2,193
2024-09-09 60,022 7.6045 60,022 7.6045 456,437
2024-09-06 66,825 7.8831 66,825 7.8831 526,788
2024-09-05 160,521 7.9367 160,521 7.9367 1,274,007
2024-09-04 83,325 8.1043 83,325 8.1043 675,291

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

NPWR / NET Power Inc. Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2026-05-14 2026-05-13 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.4329 -35,000 -85 2,965,000
2026-05-14 2026-05-12 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.4389 -400,000 -976 3,000,000
2026-05-13 2026-03-06 4/A NPEH, LLC NPWR Class B Common Stock J - Other D -3,000,000 17,729,880
2026-05-13 2026-03-06 4/A NPEH, LLC NPWR Class A Common Stock C - Conversion D 3,000,000 3,400,000
2026-03-10 2026-03-06 4 NPEH, LLC NPWR Class B Common Stock J - Other D -3,000,000 17,729,880
2026-03-10 2026-03-06 4 NPEH, LLC NPWR Class A Common Stock C - Conversion D 3,000,000 3,400,000
2026-03-05 2026-03-03 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0425 -100,000 -204 400,000
2026-03-02 2026-03-02 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0508 -79,858 -164 500,000
2026-03-02 2026-02-27 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0003 -4,744 -9 579,858
2026-03-02 2026-02-26 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0000 -1,881 -4 584,602
2026-02-23 2026-02-20 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0346 -63,517 -129 586,483
2026-02-23 2026-02-19 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.1411 -125,000 -268 650,000
2026-02-18 2026-02-18 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0692 -75,000 -155 775,000
2026-02-18 2026-02-13 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.1414 -100,000 -214 850,000
2026-02-12 2026-02-12 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0307 -150,000 -305 950,000
2026-02-12 2026-02-11 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0225 -60,000 -121 1,100,000
2026-02-12 2026-02-10 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.0803 -40,000 -83 1,160,000
2026-02-02 2026-01-29 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.3485 -54,780 -129 1,200,000
2026-01-28 2026-01-28 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.3830 -65,220 -155 1,254,780
2026-01-28 2026-01-27 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.3837 -100,000 -238 1,320,000
2026-01-28 2026-01-26 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.3549 -130,000 -306 1,420,000
2026-01-16 2026-01-16 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.6325 -230,000 -605 1,550,000
2026-01-16 2026-01-15 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.5718 -135,000 -347 1,780,000
2026-01-16 2026-01-14 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.7379 -135,000 -370 1,915,000
2025-12-29 2025-12-24 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.2096 -170,000 -376 2,050,000
2025-12-23 2025-12-23 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.1666 -130,000 -282 2,220,000
2025-12-23 2025-12-22 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.2646 -100,000 -226 2,350,000
2025-12-23 2025-12-19 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.3431 -100,000 -234 2,450,000
2025-12-11 2025-12-09 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.8235 -40,000 -113 2,550,000
2025-12-08 2025-12-08 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.8091 -140,000 -393 2,590,000
2025-12-08 2025-12-05 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.9064 -105,000 -305 2,730,000
2025-12-08 2025-12-04 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.9424 -65,000 -191 2,835,000
2025-12-02 2025-11-28 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.9354 -200,000 -587 2,900,000
2025-11-24 2025-11-21 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.5012 -17,163 -43 3,100,000
2025-11-24 2025-11-20 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.5971 -132,837 -345 3,117,163
2025-11-19 2025-11-19 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.5680 -250,000 -642 3,250,000
2025-11-19 2025-11-17 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 2.8096 -338,653 -951 3,500,000
2025-11-04 2025-11-03 4 NPEH, LLC NPWR Class B Common Stock J - Other D -2,000,000 20,729,880
2025-11-04 2025-11-03 4 NPEH, LLC NPWR Class A Common Stock C - Conversion D 2,000,000 3,838,653
2025-11-04 2025-11-03 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 4.0025 -8,477 -34 1,838,653
2025-11-04 2025-10-31 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 4.0527 -18,116 -73 1,847,130
2025-10-30 2025-10-30 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 4.0376 -107,754 -435 1,865,246
2025-10-30 2025-10-29 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 4.1166 -786,832 -3,239 1,973,000
2025-10-30 2025-10-28 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 3.7695 -7,585 -29 2,759,832
2025-10-27 2025-10-27 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 3.7662 -200,000 -753 2,767,417
2025-10-27 2025-10-24 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 3.7039 -32,583 -121 2,967,417
2025-10-27 2025-10-23 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 3.6901 -284,100 -1,048 3,000,000
2025-10-22 2025-10-22 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 3.3071 -89,000 -294 3,284,100
2025-10-22 2025-10-21 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 3.5307 -189,300 -668 3,373,100
2025-10-22 2025-10-20 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 3.5784 -201,000 -719 3,562,400
2025-10-16 2025-10-16 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 4.7061 -13,959 -66 3,763,400
2025-10-16 2025-10-15 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 4.8786 -122,641 -598 3,777,359
2025-10-16 2025-10-15 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 4.8321 -100,000 -483 3,900,000
2025-10-16 2025-10-14 4 NPEH, LLC NPWR Class B Common Stock J - Other D -4,000,000 22,729,880
2025-10-16 2025-10-14 4 NPEH, LLC NPWR Class A Common Stock C - Conversion D 4,000,000 4,000,000
2024-11-26 2024-11-22 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 12.7590 -431,009 -5,499 0
2024-11-21 2024-11-21 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 12.7163 -509,040 -6,473 431,009
2024-11-21 2024-11-20 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 12.5968 -320,371 -4,036 940,049
2024-11-21 2024-11-19 4 NPEH, LLC NPWR Class B Common Stock J - Other D -1,260,420 26,729,880
2024-11-21 2024-11-19 4 NPEH, LLC NPWR Class A Common Stock C - Conversion D 1,260,420 1,260,420
2024-10-18 2024-10-17 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.3268 -199,369 -1,461 0
2024-10-18 2024-10-16 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.1203 -517,618 -3,686 199,369
2024-10-11 2024-10-11 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 6.9163 -120,500 -833 716,987
2024-10-11 2024-10-09 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 6.9477 -122,591 -852 837,487
2024-10-07 2024-10-07 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.0015 -54,922 -385 960,078
2024-10-07 2024-09-25 4 NPEH, LLC NPWR Class B Common Stock J - Other D -1,015,000 27,990,300
2024-10-07 2024-09-25 4 NPEH, LLC NPWR Class A Common Stock C - Conversion D 1,015,000 1,015,000
2024-09-19 2024-09-19 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.0568 -342,364 -2,416 0
2024-09-19 2024-09-18 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.0211 -80,122 -563 342,364
2024-09-19 2024-09-17 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.0392 -144,959 -1,020 422,486
2024-09-16 2024-09-16 4 NPEH, LLC NPWR Class B Common Stock J - Other D -500,000 29,005,300
2024-09-16 2024-09-16 4 NPEH, LLC NPWR Class A Common Stock C - Conversion D 500,000 567,445
2024-09-16 2024-09-16 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.0506 -36,752 -259 67,445
2024-09-16 2024-09-13 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.2596 -1,340 -10 104,197
2024-09-16 2024-09-12 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.2635 -2,315 -17 105,537
2024-09-11 2024-09-11 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.2844 -21,155 -154 107,852
2024-09-11 2024-09-10 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.3100 -300 -2 129,007
2024-09-11 2024-09-09 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.6045 -60,022 -456 129,307
2024-09-06 2024-09-06 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.8831 -66,825 -527 189,329
2024-09-06 2024-09-05 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 7.9367 -160,521 -1,274 256,154
2024-09-06 2024-09-04 4 NPEH, LLC NPWR Class A Common Stock S - Sale D 8.1043 -83,325 -675 416,675
2024-09-06 2024-09-03 4 NPEH, LLC NPWR Class B Common Stock J - Other D -500,000 29,505,300
2024-09-06 2024-09-03 4 NPEH, LLC NPWR Class A Common Stock C - Conversion D 500,000 500,000
2023-06-20 3 NPEH, LLC NPWR Class B Common Stock D 30,005,300
P
Compra de mercado aberto ou privada de ativo não-derivativo ou derivativo
S
Venda de mercado aberto ou privada de ativo não-derivativo ou derivativo
A
Concessão, premiação, ou outra aquisição de ativos da empresa (como uma opção)
C
Conversão de derivativo
D
Venda ou transferência de ativos de volta para a empresa
F
Pagamento do preço de exercício ou responsabilidade fiscal utilizando parte dos ativos recebidos da empresa
G
Doação de ativos pelo ou para o insider
K
Swaps de capital e transações de hedge similares
M
Exercício ou conversão de ativo derivativo recebido da empresa (como uma opção)
V
Uma transação voluntariamente reportada no Formulário 4
J
Outro (acompanhado de uma nota explicativa descrevendo a transação)