Coordinated selling by two 10% owners at identical prices on the same days strongly suggests a shared liquidity or tax-planning event rather than a bearish read on the business. With no C-suite participation and the dollar value modest relative to market cap (<0.5%), this cluster is notable but not alarming. Monitor next Form 4 filings—if selling continues or C-suite insiders join, the signal would escalate. For now, treat as routine portfolio rebalancing by pre-arranged plans or entity-level actions.
Price Chart
Executive Summary
NET Power Inc. insiders NPEH, LLC and 8 Rivers Capital, LLC sold a combined total of $1.061 million in open-market sales over a three-day window (Aug 4-6, 2026). The selling represents approximately 0.31% of the company's $342 million market cap, falling within the modest 0.1-0.5% range, and both selling entities are 10% owners rather than C-suite executives, which reduces the informational signal under academic standards.
Key Financial Metrics
Key Facts
- Two 10% owners (NPEH, LLC and 8 Rivers Capital, LLC) each sold identical share quantities on the same three days: 120,000 shares on Aug 4, 140,000 shares on Aug 5, and 89,255 shares on Aug 6.
- Total open-market sales over the cluster window are approximately $1.061 million (combining the synthetic $406K window with the additional $655K in the cross-filing context for Aug 4-6).
- No C-suite or board insider participated in the selling; all sales are by corporate 10% owners.
- Sales represent approximately 0.31% of NPWR's $342 million market cap.
Financial Impact
Insider sales of ~$1.06M, or ~0.31% of market cap, from two 10% owners acting in lockstep on identical timing and amounts.
Risk Factors
- Continued selling by major holders could pressure the stock if interpreted as a lack of confidence.
- No C-suite buying alongside the selling leaves the ownership base tilted toward sellers.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-NPWR-1786053830384 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 11, 2026 20d ago | 8-K | $1.80 $1.79 | ▲ +0.56% | ▲ +0.66% | $1.40 (+21.94%) |
Sep 10, 2026 21d ago | Insider Cluster | $1.91 $1.83 | ▼ −4.19% | ▼ −3.97% | $1.40 (−26.44%) |
Aug 27, 2026 5w ago | Insider Cluster | $1.83 $1.93 | ▼ −5.46% | ▼ −5.36% | $1.40 (+23.22%) |
Aug 27, 2026 5w ago | Insider Cluster | $1.83 $1.93 | ▲ +5.46% | ▲ +5.36% | $1.40 (−23.22%) |
Aug 14, 2026 6w ago | Insider Cluster | $1.73 $1.99 | ▼ −15.03% | ▼ −16.22% | $1.40 (+18.79%) |
Aug 11, 2026 7w ago | Insider Cluster | $1.63 $1.67 | ▲ +2.45% | ▲ +2.90% | $1.40 (−13.80%) |
Aug 6, 2026 8w ago | Insider Cluster | $1.52 $1.95 | ▼ −28.29% | ▼ −27.89% | $1.40 (+7.57%) |
Jul 30, 2026 9w ago | Insider Cluster | $1.43 $1.52 | ▲ +6.29% | ▲ +2.78% | $1.40 (−1.75%) |
Jul 23, 2026 10w ago | Insider Cluster | $1.41 $1.47 | ▲ +4.26% | ▲ +3.88% | $1.40 (−0.35%) |
May 12, 2026 20w ago | Insider Cluster | $2.48 $1.82 | ▼ −26.61% | ▼ −26.01% | $1.40 (−43.35%) |
US Market Status
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