Form 4 filings across 1 company. Net figures count open-market buys and sales only. EDGAR profile ↗
Lifetime net: -$21.9M
Reported holding is the most recent post-transaction share count on a Table I row.
How quickly this filer reports. Section 16 allows two business days from the transaction.
All 28 filings we hold were filed within the two-business-day deadline.
Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings
The 75 most recent Form 4 transactions.
| Aug 26 | NPWR | Net Power Inc. | SSELL | 41,350 | $1.91 | $79.1K | -4.0% | Open the original filing on SEC.gov |
| Aug 25 | NPWR | Net Power Inc. | SSELL | 201,550 | $1.91 | $384.3K | -16.2% | Open the original filing on SEC.gov |
| Aug 14 | NPWR | Net Power Inc. | SSELL | 507,100 | $1.95 | $990.5K | -29.0% | Open the original filing on SEC.gov |
| Aug 13 | NPWR | Net Power Inc. | SSELL | 200,000 | $1.62 | $323.8K | -10.3% | Open the original filing on SEC.gov |
| Aug 12 | NPWR | Net Power Inc. | SSELL | 50,000 | $1.63 | $81.6K | -2.5% | Open the original filing on SEC.gov |
| Aug 11 | NPWR | Net Power Inc. | SSELL | 35,000 | $1.60 | $56K | -1.7% | Open the original filing on SEC.gov |
| Aug 10 | NPWR | Net Power Inc. | SSELL | 55,400 | $1.55 | $86.1K | -2.6% | Open the original filing on SEC.gov |
| Aug 7 | NPWR | Net Power Inc. | SSELL | 60,345 | $1.53 | $92.1K | -2.8% | Open the original filing on SEC.gov |
| Aug 6 | NPWR | Net Power Inc. | SSELL | 89,255 | $1.51 | $134.4K | -4.0% | Open the original filing on SEC.gov |
| Aug 5 | NPWR | Net Power Inc. | SSELL | 140,000 | $1.51 | $211.5K | -5.9% | Open the original filing on SEC.gov |
| Aug 4 | NPWR | Net Power Inc. | SSELL | 120,000 | $1.54 | $184.7K | -4.8% | Open the original filing on SEC.gov |
| Jul 30 | NPWR | Net Power Inc. | SSELL | 155,000 | $1.43 | $221.4K | -5.8% | Open the original filing on SEC.gov |
| Jul 29 | NPWR | Net Power Inc. | SSELL | 45,000 | $1.41 | $63.3K | -1.7% | Open the original filing on SEC.gov |
| Jul 28 | NPWR | Net Power Inc. | SSELL | 55,858 | $1.47 | $82.2K | -2.0% | Open the original filing on SEC.gov |
| Jul 23 | NPWR | Net Power Inc. | SSELL | 39,142 | $1.51 | $59K | -1.4% | Open the original filing on SEC.gov |
| Jul 22 | NPWR | Net Power Inc. | SSELL | 90,000 | $1.53 | $137.3K | -3.1% | Open the original filing on SEC.gov |
| Jul 21 | NPWR | Net Power Inc. | SSELL | 80,000 | $1.53 | $122.4K | -2.7% | Open the original filing on SEC.gov |
| May 13 | NPWR | Net Power Inc. | SSELL | 35,000 | $2.43 | $85.2K | -1.2% | Open the original filing on SEC.gov |
| May 12 | NPWR | Net Power Inc. | SSELL | 400,000 | $2.44 | $975.6K | -11.8% | Open the original filing on SEC.gov |
| Mar 6 | NPWR | Net Power Inc. | CCONV◆↺ | 3M | — | — | — | Open the original filing on SEC.gov |
| Mar 6 | NPWR | Net Power Inc. | JOTHER↺ | 3M | — | — | -14.5% | Open the original filing on SEC.gov |
| Mar 6 | NPWR | Net Power Inc. | CCONV↺ | 3M | — | — | +750.0% | Open the original filing on SEC.gov |
| Mar 3 | NPWR | Net Power Inc. | SSELL | 100,000 | $2.04 | $204.3K | -20.0% | Open the original filing on SEC.gov |
| Mar 2 | NPWR | Net Power Inc. | SSELL | 79,858 | $2.05 | $163.8K | -13.8% | Open the original filing on SEC.gov |
| Feb 27 | NPWR | Net Power Inc. | SSELL | 4,744 | $2.00 | $9.5K | -0.8% | Open the original filing on SEC.gov |
| Feb 26 | NPWR | Net Power Inc. | SSELL | 1,881 | $2.00 | $3.8K | -0.3% | Open the original filing on SEC.gov |
| Feb 20 | NPWR | Net Power Inc. | SSELL | 63,517 | $2.03 | $129.2K | -9.8% | Open the original filing on SEC.gov |
| Feb 19 | NPWR | Net Power Inc. | SSELL | 125,000 | $2.14 | $267.6K | -16.1% | Open the original filing on SEC.gov |
| Feb 18 | NPWR | Net Power Inc. | SSELL | 75,000 | $2.07 | $155.2K | -8.8% | Open the original filing on SEC.gov |
| Feb 13 | NPWR | Net Power Inc. | SSELL | 100,000 | $2.14 | $214.1K | -10.5% | Open the original filing on SEC.gov |
| Feb 12 | NPWR | Net Power Inc. | SSELL | 150,000 | $2.03 | $304.6K | -13.6% | Open the original filing on SEC.gov |
| Feb 11 | NPWR | Net Power Inc. | SSELL | 60,000 | $2.02 | $121.4K | -5.2% | Open the original filing on SEC.gov |
| Feb 10 | NPWR | Net Power Inc. | SSELL | 40,000 | $2.08 | $83.2K | -3.3% | Open the original filing on SEC.gov |
| Jan 29 | NPWR | Net Power Inc. | SSELL | 54,780 | $2.35 | $128.7K | -4.4% | Open the original filing on SEC.gov |
| Jan 28 | NPWR | Net Power Inc. | SSELL | 65,220 | $2.38 | $155.4K | -4.9% | Open the original filing on SEC.gov |
| Jan 27 | NPWR | Net Power Inc. | SSELL | 100,000 | $2.38 | $238.4K | -7.0% | Open the original filing on SEC.gov |
| Jan 26 | NPWR | Net Power Inc. | SSELL | 130,000 | $2.35 | $306.1K | -8.4% | Open the original filing on SEC.gov |
| Jan 16 | NPWR | Net Power Inc. | SSELL | 230,000 | $2.63 | $605.5K | -12.9% | Open the original filing on SEC.gov |
| Jan 15 | NPWR | Net Power Inc. | SSELL | 135,000 | $2.57 | $347.2K | -7.0% | Open the original filing on SEC.gov |
| Jan 14 | NPWR | Net Power Inc. | SSELL | 135,000 | $2.74 | $369.6K | -6.6% | Open the original filing on SEC.gov |
| Dec 24, 2025 | NPWR | Net Power Inc. | SSELL | 170,000 | $2.21 | $375.6K | -7.7% | Open the original filing on SEC.gov |
| Dec 23, 2025 | NPWR | Net Power Inc. | SSELL | 130,000 | $2.17 | $281.7K | -5.5% | Open the original filing on SEC.gov |
| Dec 22, 2025 | NPWR | Net Power Inc. | SSELL | 100,000 | $2.26 | $226.5K | -4.1% | Open the original filing on SEC.gov |
| Dec 19, 2025 | NPWR | Net Power Inc. | SSELL | 100,000 | $2.34 | $234.3K | -3.9% | Open the original filing on SEC.gov |
| Dec 9, 2025 | NPWR | Net Power Inc. | SSELL | 40,000 | $2.82 | $112.9K | -1.5% | Open the original filing on SEC.gov |
| Dec 8, 2025 | NPWR | Net Power Inc. | SSELL | 140,000 | $2.81 | $393.3K | -5.1% | Open the original filing on SEC.gov |
| Dec 5, 2025 | NPWR | Net Power Inc. | SSELL | 105,000 | $2.91 | $305.2K | -3.7% | Open the original filing on SEC.gov |
| Dec 4, 2025 | NPWR | Net Power Inc. | SSELL | 65,000 | $2.94 | $191.3K | -2.2% | Open the original filing on SEC.gov |
| Nov 28, 2025 | NPWR | Net Power Inc. | SSELL | 200,000 | $2.94 | $587.1K | -6.5% | Open the original filing on SEC.gov |
| Nov 21, 2025 | NPWR | Net Power Inc. | SSELL | 17,163 | $2.50 | $42.9K | -0.5% | Open the original filing on SEC.gov |
| Nov 20, 2025 | NPWR | Net Power Inc. | SSELL | 132,837 | $2.60 | $345K | -4.1% | Open the original filing on SEC.gov |
| Nov 19, 2025 | NPWR | Net Power Inc. | SSELL | 250,000 | $2.57 | $642K | -7.1% | Open the original filing on SEC.gov |
| Nov 17, 2025 | NPWR | Net Power Inc. | SSELL | 338,653 | $2.81 | $951.5K | -8.8% | Open the original filing on SEC.gov |
| Nov 3, 2025 | NPWR | Net Power Inc. | CCONV◆ | 2M | — | — | — | Open the original filing on SEC.gov |
| Nov 3, 2025 | NPWR | Net Power Inc. | JOTHER | 2M | — | — | -8.8% | Open the original filing on SEC.gov |
| Nov 3, 2025 | NPWR | Net Power Inc. | CCONV | 2M | — | — | +108.8% | Open the original filing on SEC.gov |
| Nov 3, 2025 | NPWR | Net Power Inc. | SSELL | 8,477 | $4.00 | $33.9K | -0.5% | Open the original filing on SEC.gov |
| Oct 31, 2025 | NPWR | Net Power Inc. | SSELL | 18,116 | $4.05 | $73.4K | -1.0% | Open the original filing on SEC.gov |
| Oct 30, 2025 | NPWR | Net Power Inc. | SSELL | 107,754 | $4.04 | $435.1K | -5.5% | Open the original filing on SEC.gov |
| Oct 29, 2025 | NPWR | Net Power Inc. | SSELL | 786,832 | $4.12 | $3.2M | -28.5% | Open the original filing on SEC.gov |
| Oct 28, 2025 | NPWR | Net Power Inc. | SSELL | 7,585 | $3.77 | $28.6K | -0.3% | Open the original filing on SEC.gov |
| Oct 27, 2025 | NPWR | Net Power Inc. | SSELL | 200,000 | $3.77 | $753.2K | -6.7% | Open the original filing on SEC.gov |
| Oct 24, 2025 | NPWR | Net Power Inc. | SSELL | 32,583 | $3.70 | $120.7K | -1.1% | Open the original filing on SEC.gov |
| Oct 23, 2025 | NPWR | Net Power Inc. | SSELL | 284,100 | $3.69 | $1M | -8.6% | Open the original filing on SEC.gov |
| Oct 22, 2025 | NPWR | Net Power Inc. | SSELL | 89,000 | $3.31 | $294.3K | -2.6% | Open the original filing on SEC.gov |
| Oct 21, 2025 | NPWR | Net Power Inc. | SSELL | 189,300 | $3.53 | $668.4K | -5.3% | Open the original filing on SEC.gov |
| Oct 20, 2025 | NPWR | Net Power Inc. | SSELL | 201,000 | $3.58 | $719.3K | -5.3% | Open the original filing on SEC.gov |
| Oct 16, 2025 | NPWR | Net Power Inc. | SSELL | 13,959 | $4.71 | $65.7K | -0.4% | Open the original filing on SEC.gov |
| Oct 15, 2025 | NPWR | Net Power Inc. | SSELL | 122,641 | $4.88 | $598.3K | -3.1% | Open the original filing on SEC.gov |
| Oct 15, 2025 | NPWR | Net Power Inc. | SSELL | 100,000 | $4.83 | $483.2K | -2.5% | Open the original filing on SEC.gov |
| Oct 14, 2025 | NPWR | Net Power Inc. | CCONV◆ | 4M | — | — | — | Open the original filing on SEC.gov |
| Oct 14, 2025 | NPWR | Net Power Inc. | JOTHER | 4M | — | — | -15.0% | Open the original filing on SEC.gov |
| Oct 14, 2025 | NPWR | Net Power Inc. | CCONV | 4M | — | — | — | Open the original filing on SEC.gov |