Insider Cluster (2 insiders) ·Filed Aug 27, 2026

NPWR

Net Power Inc.
BEARISH
Impact 5/10
Horizondays Processed1mo ago
Insider cluster: 2 insiders, $158K total
Actionable Insight ▼ Bearish

Persistent selling by two 10% holders at ~$1.91, near the stock's recent lows, signals lack of confidence at the ownership level. Monitor for additional filings or a material adverse event (e.g., project delay, capital raise). The 82% analyst buy rating creates a potential divergence — if the stock fails to hold support, the sell-off could accelerate.

DirectionBearish
Confidencemedium
Horizondays
Latest settled — T+20d ⚠ clustered
NPWR ▼ -14.75% at T+20d
SHORT call ✓ call won +14.75% · α vs SPY +15.01% · entry $1.83 → $1.56
Next anchor: T+60d in 7w
Latest observation: T+23 +3.81% FF3 residual α
Entry anchored
Aug 27, 04:12 PM ET
via 1-min bar
T+1d
-2.73%
call +2.73% · α +2.43%
$1.78
settled 5w ago
T+5d
+5.46%
call -5.46% · α -5.36%
$1.93
settled 29d ago
T+20d
-14.75%
call +14.75% · α +15.01%
$1.56
settled 7d ago
T+60d
—
call — · α —
—
in 7w

Price Chart

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Executive Summary

Two 10% owners (8 Rivers Capital, LLC and NPEH, LLC) sold a combined $926K in NPWR stock over two days, with $158K in the latest window. This follows $3.7M in insider selling over the prior 30 days, creating a persistent sell-side pattern. The selling is material relative to the $425M market cap (0.22% in this cluster, ~0.87% over 30 days) but involves non-C-suite holders, which weakens the bearish signal per academic literature.

Key Financial Metrics

Direction
selling
Total Value
$158.2K
Insiders
2

Key Facts

  • 8 Rivers Capital, LLC (10% owner) sold 41,350 shares at $1.9124 on 2026-08-26, totaling $79,077.74
  • NPEH, LLC (10% owner) sold 41,350 shares at $1.9124 on 2026-08-26, totaling $79,077.74
  • Combined cluster value: $158,155.48 (0.04% of $425M market cap)
  • Prior 30 days: $3.7M in insider selling (0.87% of market cap)
  • All trades are open-market sales; no 10b5-1 plan indicated

Financial Impact

$158K in this cluster, $3.7M over 30 days — 0.87% of market cap

insider ownershipfloat

Risk Factors

  • Continued insider selling could pressure the stock further
  • No C-suite participation in buying to offset the sell signal
  • Stock already down ~30% over the past month per historical performance data

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-1787929869648
12 reports for NPWR
Performance horizon
80% Hit rate 4 of 5 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%$1.45 (+19.44%)
Sep 10, 2026
21d ago
Insider Cluster
NEUTRAL ★ 3/10
$1.91 $1.83▼ −4.19%▼ −3.97%$1.45 (−24.08%)
Aug 27, 2026
5w ago
Insider Cluster
BEARISH ★ 5/10
$1.83 $1.93▼ −5.46%▼ −5.36%$1.45 (+20.77%)
Aug 27, 2026
5w ago
Insider Cluster
NEUTRAL ★ 4/10
$1.83 $1.93▲ +5.46%▲ +5.36%$1.45 (−20.77%)
Aug 14, 2026
6w ago
Insider Cluster
BEARISH ★ 5/10
$1.73 $1.99▼ −15.03%▼ −16.22%$1.45 (+16.18%)
Aug 11, 2026
7w ago
Insider Cluster
NEUTRAL ★ 2/10
$1.63 $1.67▲ +2.45%▲ +2.90%$1.45 (−11.04%)
Aug 6, 2026
8w ago
Insider Cluster
BEARISH ★ 4/10
$1.52 $1.95▼ −28.29%▼ −27.89%$1.45 (+4.61%)
Jul 30, 2026
9w ago
Insider Cluster
NEUTRAL ★ 4/10
$1.43 $1.52▲ +6.29%▲ +2.78%$1.45 (+1.40%)
Jul 23, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$1.41 $1.47▲ +4.26%▲ +3.88%$1.45 (+2.84%)
May 12, 2026
20w ago
Insider Cluster
NEUTRAL ★ 4/10
$2.48 $1.82▼ −26.61%▼ −26.01%$1.45 (−41.53%)
Showing 10 of 12

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Report published Aug 28, 2026