NPWR — Net Power Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2021-08-06.
Performance
Technicals
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Measured signals that fired on NPWR
| date | signal | measured base rate |
|---|---|---|
| 2026-07-23 | Cluster sale: three or more insiders insider | -0.37% over 21 days · t = -3.38 · n = 21,542 statistically distinguishable from its control group |
| 2026-05-14 | Cluster sale: three or more insiders insider | -0.37% over 21 days · t = -3.38 · n = 21,542 statistically distinguishable from its control group |
| 2026-03-19 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-03-10 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
| 2026-03-02 | Cluster sale: three or more insiders insider | -0.37% over 21 days · t = -3.38 · n = 21,542 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-14 | 8 Rivers Capital, LLC 10% owner | Open-market sale | 507.1K | 1.95 | 990.5K |
| 2026-08-14 | NPEH, LLC 10% owner | Open-market sale | 507.1K | 1.95 | 990.5K |
| 2026-08-14 | BEAUCHAMP DAMIAN R. 10% owner | Open-market sale | 507.1K | 1.95 | 990.5K |
| 2026-08-13 | 8 Rivers Capital, LLC 10% owner | Open-market sale | 200.0K | 1.62 | 323.8K |
| 2026-08-13 | NPEH, LLC 10% owner | Open-market sale | 200.0K | 1.62 | 323.8K |
| 2026-08-13 | BEAUCHAMP DAMIAN R. 10% owner | Open-market sale | 200.0K | 1.62 | 323.8K |
| 2026-08-12 | NPEH, LLC 10% owner | Open-market sale | 50.0K | 1.63 | 81.6K |
| 2026-08-12 | 8 Rivers Capital, LLC 10% owner | Open-market sale | 50.0K | 1.63 | 81.6K |
| 2026-08-12 | BEAUCHAMP DAMIAN R. 10% owner | Open-market sale | 50.0K | 1.63 | 81.6K |
| 2026-08-11 | BEAUCHAMP DAMIAN R. 10% owner | Open-market sale | 35.0K | 1.60 | 56.0K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| Share Andrew L. | 15.2M | 9.8M |
| HITE Hedge Asset Management LLC | 4.3M | 2.8M |
| BlackRock, Inc. | 3.3M | 2.1M |
| PEAK6 LLC | 3.1M | 2.0M |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.6M | 1.6M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2.4M | 1.5M |
| Sourcerock Group LLC | 2.3M | 1.5M |
| TWO SIGMA INVESTMENTS, LP | 1.7M | 1.1M |
| GEODE CAPITAL MANAGEMENT, LLC | 1.3M | 860.4K |
| Argentarii, LLC | 1.2M | 748.6K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| SCHEDULE 13D/A | 2026-08-17 | — | on EDGAR ↗ |
| 4 | 2026-08-14 | 2026-08-12 | on EDGAR ↗ |
| 4 | 2026-08-14 | 2026-08-12 | on EDGAR ↗ |
| 10-Q | 2026-08-13 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-13 | 2026-08-13 | on EDGAR ↗ |
| 4 | 2026-08-11 | 2026-08-07 | on EDGAR ↗ |
| 4 | 2026-08-11 | 2026-08-07 | on EDGAR ↗ |
| 4 | 2026-08-06 | 2026-08-04 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Net Power Inc. (NPWR) filed form SCHEDULE 13D/A · 2026-08-17 · SEC EDGAR
- NET Power outlines 1-1.5 GW Project Permian redesign toward 2028 behind-the-meter gas power · 2026-08-14
- NET Power reports Q2 results · 2026-08-13
- Net Power Inc. (NPWR) filed form 8-K · 2026-08-13 · SEC EDGAR
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