NPWR
NET Power Inc.$1.80+0.01 (+0.28%)Prev Close$1.80·MCap$168.8M·P/E—·Vol231.0K·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
33
$17.37M
◆
Net Activity
Net Seller
$17.37M
●
Active Insiders
3
last 12 mo
Over the past 12 months, insider activity at NET Power Inc. (NPWR) has been exclusively selling, with 0 insider purchases totaling $0.00 and 33 insider sales totaling $17.37M. The most recent insider transaction was by NPEH, LLC (10 percent owner), who sold $469.6K worth of shares on Sep 10, 2026. NET Power Inc. operates in the Industrials sector, within the Industrial - Machinery industry, with a market cap of $168.8M.
NPWR Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | NPEH, LLC | 10 percent owner | Sell | 250,000 | $1.88 | $469.6K | 900,000 |
| Sep 10, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 250,000 | $1.88 | $469.6K | 900,000 |
| Aug 27, 2026 | NPEH, LLC | 10 percent owner | Sell | 242,900 | $1.91 | $463.3K | 1,041,350 |
| Aug 27, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 242,900 | $1.91 | $463.3K | 1,041,350 |
| Aug 14, 2026 | NPEH, LLC | 10 percent owner | Sell | 757,100 | $1.84 | $1.40M0.9% OS | 1,950,000-28% |
| Aug 14, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 757,100 | $1.84 | $1.40M0.9% OS | 1,950,000-28% |
| Aug 11, 2026 | NPEH, LLC | 10 percent owner | Sell | 150,745 | $1.55 | $234.1K | 2,090,400 |
| Aug 11, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 150,745 | $1.55 | $234.1K | 2,090,400 |
| Aug 6, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 349,255 | $1.52 | $530.6K | 2,380,000 |
| Aug 6, 2026 | NPEH, LLC | 10 percent owner | Sell | 349,255 | $1.52 | $530.6K | 2,380,000 |
| Jul 30, 2026 | NPEH, LLC | 10 percent owner | Sell | 255,858 | $1.43 | $367.0K | 2,700,000 |
| Jul 30, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 255,858 | $1.43 | $367.0K | 2,700,000 |
| Jul 23, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 209,142 | $1.52 | $318.7K | 2,885,000 |
| Jul 23, 2026 | NPEH, LLC | 10 percent owner | Sell | 209,142 | $1.52 | $318.7K | 2,885,000 |
| May 14, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 435,000 | $2.44 | $1.06M0.5% OS | 3,000,000 |
| May 14, 2026 | NPEH, LLC | 10 percent owner | Sell | 435,000 | $2.44 | $1.06M0.5% OS | 3,000,000 |
| Mar 5, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 100,000 | $2.04 | $204.3K | 400,000 |
| Mar 5, 2026 | NPEH, LLC | 10 percent owner | Sell | 100,000 | $2.04 | $204.3K | 400,000 |
| Mar 2, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 86,483 | $2.05 | $177.0K | 584,602 |
| Mar 2, 2026 | NPEH, LLC | 10 percent owner | Sell | 86,483 | $2.05 | $177.0K | 584,602 |
| Feb 23, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 188,517 | $2.11 | $396.9K | 650,000 |
| Feb 23, 2026 | NPEH, LLC | 10 percent owner | Sell | 188,517 | $2.11 | $396.9K | 650,000 |
| Feb 18, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 175,000 | $2.11 | $369.3K | 850,000 |
| Feb 18, 2026 | NPEH, LLC | 10 percent owner | Sell | 175,000 | $2.11 | $369.3K | 850,000 |
| Feb 12, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 250,000 | $2.04 | $509.2K | 1,160,000 |
| Feb 12, 2026 | NPEH, LLC | 10 percent owner | Sell | 250,000 | $2.04 | $509.2K | 1,160,000 |
| Feb 2, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 54,780 | $2.35 | $128.7K | 1,200,000 |
| Feb 2, 2026 | NPEH, LLC | 10 percent owner | Sell | 54,780 | $2.35 | $128.7K | 1,200,000 |
| Jan 28, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 295,220 | $2.37 | $699.9K | 1,420,000 |
| Jan 28, 2026 | NPEH, LLC | 10 percent owner | Sell | 295,220 | $2.37 | $699.9K | 1,420,000 |
| Jan 16, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 500,000 | $2.64 | $1.32M0.6% OS | 1,915,000 |
| Jan 16, 2026 | NPEH, LLC | 10 percent owner | Sell | 500,000 | $2.64 | $1.32M0.6% OS | 1,915,000 |
| Oct 31, 2025 | Beauchamp Cynda | 10% Owner | Sell | 18,116 | $4.05 | $73.4K | 0 |
| Apr 2, 2025 | PATEL AKASH S. | Chief Financial Officer | Sell | 7,359 | $2.29 | $16.9K | 0 |
| Apr 2, 2025 | Rosser Kelly | Chief Accounting Officer | Sell | 1,127 | $2.25 | $2.5K | 0 |
| Nov 26, 2024 | NPEH, LLC | 10% Owner | Sell | 431,009 | $12.76 | $5.50M0.5% OS | 0Exit |
| Nov 26, 2024 | PATEL AKASH S. | Chief Financial Officer | Sell | 150,000 | $12.65 | $1.90M | 0Exit |
| Nov 21, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 829,411 | $12.67 | $10.51M1.0% OS | 940,049-47% |
| Oct 18, 2024 | NPEH, LLC | 10% Owner | Sell | 716,987 | $7.18 | $5.15M0.8% OS | 199,369-78% |
| Oct 11, 2024 | NPEH, LLC | 10% Owner | Sell | 243,091 | $6.93 | $1.69M | 837,487 |
| Oct 7, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 79,645 | $7.00 | $557.7K | 960,078 |
| Oct 2, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 46,585 | $7.07 | $329.3K | 24,723-65% |
| Sep 24, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 28,690 | $7.00 | $200.9K | 73,074-28% |
| Sep 19, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 967,445 | $7.05 | $6.82M1.1% OS | 422,486-70% |
| Sep 16, 2024 | NPEH, LLC | 10% Owner | Sell | 40,407 | $7.07 | $285.7K | 105,537-28% |
| Sep 11, 2024 | NPEH, LLC | 10% Owner | Sell | 81,477 | $7.52 | $612.7K | 129,307-39% |
| Sep 6, 2024 | NPEH, LLC | 10% Owner | Sell | 310,671 | $7.97 | $2.48M | 416,675-43% |
| May 28, 2024 | SK INC. | 10% Owner | Sell | 2,500,000 | $10.04 | $25.10M3.0% OS | 2,500,000-50% |
| Sep 14, 2023 | MAHON JAMES | General Counsel and Secretary | Sell | 31,394 | $15.10 | $474.2K | 26,126-55% |
| Sep 12, 2023 | MAHON JAMES | General Counsel and Secretary | Sell | 40,000 | $15.41 | $616.5K | 51,394-44% |
Showing 1–50 of 55
1 / 2
NPWR Insider Buying Activity
The following table shows recent insider purchases of NET Power Inc. (NPWR) stock reported via SEC Form 4 filings.
No insider buying activity found for NPWR in the last 12 months.
NPWR Insider Selling Activity
The following table shows recent insider sales of NET Power Inc. (NPWR) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | NPEH, LLC | 10 percent owner | Sell | 250,000 | $1.88 | $469.6K | 900,000 |
| Sep 10, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 250,000 | $1.88 | $469.6K | 900,000 |
| Aug 27, 2026 | NPEH, LLC | 10 percent owner | Sell | 242,900 | $1.91 | $463.3K | 1,041,350 |
| Aug 27, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 242,900 | $1.91 | $463.3K | 1,041,350 |
| Aug 14, 2026 | NPEH, LLC | 10 percent owner | Sell | 757,100 | $1.84 | $1.40M0.9% OS | 1,950,000-28% |
| Aug 14, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 757,100 | $1.84 | $1.40M0.9% OS | 1,950,000-28% |
| Aug 11, 2026 | NPEH, LLC | 10 percent owner | Sell | 150,745 | $1.55 | $234.1K | 2,090,400 |
| Aug 11, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 150,745 | $1.55 | $234.1K | 2,090,400 |
| Aug 6, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 349,255 | $1.52 | $530.6K | 2,380,000 |
| Aug 6, 2026 | NPEH, LLC | 10 percent owner | Sell | 349,255 | $1.52 | $530.6K | 2,380,000 |
| Jul 30, 2026 | NPEH, LLC | 10 percent owner | Sell | 255,858 | $1.43 | $367.0K | 2,700,000 |
| Jul 30, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 255,858 | $1.43 | $367.0K | 2,700,000 |
| Jul 23, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 209,142 | $1.52 | $318.7K | 2,885,000 |
| Jul 23, 2026 | NPEH, LLC | 10 percent owner | Sell | 209,142 | $1.52 | $318.7K | 2,885,000 |
| May 14, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 435,000 | $2.44 | $1.06M0.5% OS | 3,000,000 |
| May 14, 2026 | NPEH, LLC | 10 percent owner | Sell | 435,000 | $2.44 | $1.06M0.5% OS | 3,000,000 |
| Mar 5, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 100,000 | $2.04 | $204.3K | 400,000 |
| Mar 5, 2026 | NPEH, LLC | 10 percent owner | Sell | 100,000 | $2.04 | $204.3K | 400,000 |
| Mar 2, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 86,483 | $2.05 | $177.0K | 584,602 |
| Mar 2, 2026 | NPEH, LLC | 10 percent owner | Sell | 86,483 | $2.05 | $177.0K | 584,602 |
| Feb 23, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 188,517 | $2.11 | $396.9K | 650,000 |
| Feb 23, 2026 | NPEH, LLC | 10 percent owner | Sell | 188,517 | $2.11 | $396.9K | 650,000 |
| Feb 18, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 175,000 | $2.11 | $369.3K | 850,000 |
| Feb 18, 2026 | NPEH, LLC | 10 percent owner | Sell | 175,000 | $2.11 | $369.3K | 850,000 |
| Feb 12, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 250,000 | $2.04 | $509.2K | 1,160,000 |
| Feb 12, 2026 | NPEH, LLC | 10 percent owner | Sell | 250,000 | $2.04 | $509.2K | 1,160,000 |
| Feb 2, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 54,780 | $2.35 | $128.7K | 1,200,000 |
| Feb 2, 2026 | NPEH, LLC | 10 percent owner | Sell | 54,780 | $2.35 | $128.7K | 1,200,000 |
| Jan 28, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 295,220 | $2.37 | $699.9K | 1,420,000 |
| Jan 28, 2026 | NPEH, LLC | 10 percent owner | Sell | 295,220 | $2.37 | $699.9K | 1,420,000 |
| Jan 16, 2026 | 8 Rivers Capital, LLC | 10 percent owner | Sell | 500,000 | $2.64 | $1.32M0.6% OS | 1,915,000 |
| Jan 16, 2026 | NPEH, LLC | 10 percent owner | Sell | 500,000 | $2.64 | $1.32M0.6% OS | 1,915,000 |
| Oct 31, 2025 | Beauchamp Cynda | 10% Owner | Sell | 18,116 | $4.05 | $73.4K | 0 |
| Apr 2, 2025 | PATEL AKASH S. | Chief Financial Officer | Sell | 7,359 | $2.29 | $16.9K | 0 |
| Apr 2, 2025 | Rosser Kelly | Chief Accounting Officer | Sell | 1,127 | $2.25 | $2.5K | 0 |
| Nov 26, 2024 | NPEH, LLC | 10% Owner | Sell | 431,009 | $12.76 | $5.50M0.5% OS | 0Exit |
| Nov 26, 2024 | PATEL AKASH S. | Chief Financial Officer | Sell | 150,000 | $12.65 | $1.90M | 0Exit |
| Nov 21, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 829,411 | $12.67 | $10.51M1.0% OS | 940,049-47% |
| Oct 18, 2024 | NPEH, LLC | 10% Owner | Sell | 716,987 | $7.18 | $5.15M0.8% OS | 199,369-78% |
| Oct 11, 2024 | NPEH, LLC | 10% Owner | Sell | 243,091 | $6.93 | $1.69M | 837,487 |
| Oct 7, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 79,645 | $7.00 | $557.7K | 960,078 |
| Oct 2, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 46,585 | $7.07 | $329.3K | 24,723-65% |
| Sep 24, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 28,690 | $7.00 | $200.9K | 73,074-28% |
| Sep 19, 2024 | 8 Rivers Capital, LLC | 10% Owner | Sell | 967,445 | $7.05 | $6.82M1.1% OS | 422,486-70% |
| Sep 16, 2024 | NPEH, LLC | 10% Owner | Sell | 40,407 | $7.07 | $285.7K | 105,537-28% |
| Sep 11, 2024 | NPEH, LLC | 10% Owner | Sell | 81,477 | $7.52 | $612.7K | 129,307-39% |
| Sep 6, 2024 | NPEH, LLC | 10% Owner | Sell | 310,671 | $7.97 | $2.48M | 416,675-43% |
| May 28, 2024 | SK INC. | 10% Owner | Sell | 2,500,000 | $10.04 | $25.10M3.0% OS | 2,500,000-50% |
| Sep 14, 2023 | MAHON JAMES | General Counsel and Secretary | Sell | 31,394 | $15.10 | $474.2K | 26,126-55% |
| Sep 12, 2023 | MAHON JAMES | General Counsel and Secretary | Sell | 40,000 | $15.41 | $616.5K | 51,394-44% |
NPWR Insiders
Similar Stocks to NPWR
PH
Parker-Hannifin Corporation
$923.95-0.49%
$119.72B
EMR
Emerson Electric Co.
$146.92-0.92%
$84.26B
ITW
Illinois Tool Works Inc.
$268.41-0.24%
$75.95B
PCAR
PACCAR Inc
$122.34-0.42%
$64.15B
ROK
Rockwell Automation, Inc.
$417.08-0.42%
$47.41B
IR
Ingersoll Rand Inc.
$71.69-0.60%
$28.79B
SYM
Symbotic Inc.
$42.81+3.03%
$27.35B
ITT
ITT Inc.
$198.16-0.68%
$18.25B