Insider Cluster (2 insiders) ·Filed Jul 30, 2026

NPWR

NET Power Inc.
NEUTRAL
Impact 4/10
Horizondays Processed2mo ago
Insider cluster: 2 insiders, $141K total
Actionable Insight • Neutral

The selling by two 10% owners is modest in size and lacks C-suite participation, making it a weak bearish signal. Monitor for any upcoming 8-K filings (e.g., earnings, material agreements) that could explain the selling pattern, but no immediate trading action is warranted.

DirectionNeutral
Confidencemedium
Horizondays
Latest settled — T+20d
NPWR ▲ +27.97% at T+20d
NEUTRAL call ✓ call won +27.97% · α vs SPY +24.98% · entry $1.43 → $1.83
Next anchor: T+60d in 21d
Latest observation: T+43 +30.60% FF3 residual α
Entry anchored
Jul 30, 03:59 PM ET
via exchange tick
T+1d
+5.59%
call +5.59% · α +4.17%
$1.51
settled 2mo ago
T+5d
+6.29%
call +6.29% · α +2.78%
$1.52
settled 8w ago
T+20d
+27.97%
call +27.97% · α +24.98%
$1.83
settled 5w ago
T+60d
—
call — · α —
—
in 21d

Price Chart

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Executive Summary

Two 10% owners (NPEH, LLC and 8 Rivers Capital, LLC) sold a combined ~$734K of NPWR stock in a 3-day cluster, representing ~0.24% of the $306M market cap. The sales are modest in proportion to market cap and are executed by non-C-suite entities, likely reflecting routine portfolio rebalancing or tax planning rather than a bearish signal on the company's prospects. The historical calibration shows past neutral/short calls on NPWR have been mixed, with a -4.21% average T+20 P&L, but this cluster's small size and insider type do not warrant a directional call.

Key Financial Metrics

Direction
selling
Total Value
$734.0K
Insiders
2

Key Facts

  • Two 10% owners (NPEH, LLC and 8 Rivers Capital, LLC) sold a combined ~$734K in open-market transactions over July 28-30, 2026.
  • Total cluster value is ~0.24% of NPWR's $306M market cap, below the 0.5% threshold for 'modest' impact.
  • No C-suite insiders participated; all sellers are 10% owners, reducing the informational signal.
  • The cluster follows $1.1M in insider sales over the prior 30 days, indicating a sustained pattern of selling by large holders.

Financial Impact

Total insider sales of ~$734K, representing ~0.24% of market cap

insider ownership

Risk Factors

  • Continued selling by large holders could pressure the stock if it accelerates beyond 0.5% of market cap.
  • The company's small market cap ($306M) amplifies the impact of any future insider sales.

Market Snapshot

Exchange
NYSE
Sector
Electrical Industrial Apparatus
Analyst Consensus
82% bullish (11 analysts)

Investment Themes

Industrials & Manufacturing

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-NPWR-1785448870227
12 reports for NPWR
Performance horizon
83% Hit rate 5 of 6 directional calls best @ T+20▲ +29.72%Mar 2, 2026
Filters
Rows
Reports for NPWR — sortable, filterable
TypeNow
Sep 11, 2026
20d ago
8-K
BEARISH ★ 7/10
$1.80 $1.79▲ +0.56%▲ +0.66%$1.40 (+21.99%)
Sep 10, 2026
21d ago
Insider Cluster
NEUTRAL ★ 3/10
$1.91 $1.83▼ −4.19%▼ −3.97%$1.40 (−26.48%)
Aug 27, 2026
5w ago
Insider Cluster
BEARISH ★ 5/10
$1.83 $1.93▼ −5.46%▼ −5.36%$1.40 (+23.27%)
Aug 27, 2026
5w ago
Insider Cluster
NEUTRAL ★ 4/10
$1.83 $1.93▲ +5.46%▲ +5.36%$1.40 (−23.27%)
Aug 14, 2026
6w ago
Insider Cluster
BEARISH ★ 5/10
$1.73 $1.99▼ −15.03%▼ −16.22%$1.40 (+18.83%)
Aug 11, 2026
7w ago
Insider Cluster
NEUTRAL ★ 2/10
$1.63 $1.67▲ +2.45%▲ +2.90%$1.40 (−13.85%)
Aug 6, 2026
8w ago
Insider Cluster
BEARISH ★ 4/10
$1.52 $1.95▼ −28.29%▼ −27.89%$1.40 (+7.62%)
Jul 30, 2026
9w ago
Insider Cluster
NEUTRAL ★ 4/10
$1.43 $1.52▲ +6.29%▲ +2.78%$1.40 (−1.80%)
Jul 23, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$1.41 $1.47▲ +4.26%▲ +3.88%$1.40 (−0.41%)
May 12, 2026
20w ago
Insider Cluster
NEUTRAL ★ 4/10
$2.48 $1.82▼ −26.61%▼ −26.01%$1.40 (−43.38%)
Showing 10 of 12

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Report published Jul 30, 2026