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Insider Cluster (7 insiders) ·Filed Aug 26, 2026

ATEX

Anterix Inc.
BEARISH
Impact 5/10
Horizonweeks Processed2mo ago
Insider cluster: 7 insiders, $3.4M total
Actionable Insight ▼ Bearish

The broad C-suite and director selling, combined with a recent director sale at higher prices, suggests insiders may be reducing exposure ahead of a potential negative catalyst or see limited near-term upside. Monitor for any upcoming 8-K filings, earnings pre-announcements, or regulatory developments. The cluster's modest size relative to market cap limits the bearish signal's magnitude, but the breadth of participants warrants attention.

DirectionBearish
Confidencemedium
Horizonweeks
Latest settled — T+20d ⚠ clustered
ATEX ▼ -14.00% at T+20d
SHORT call ✓ call won +14.00% · α vs SPY +14.28% · entry $94.67 → $81.42
Next anchor: T+60d in 23d
Latest observation: T+40 +24.74% FF3 residual α
Entry = T+0 close
Aug 26, 2026
via day close
T+1d
-2.47%
call +2.47% · α +2.24%
$92.33
settled 2mo ago
T+5d
-8.00%
call +8.00% · α +8.26%
$87.10
settled 8w ago
T+20d
-14.00%
call +14.00% · α +14.28%
$81.42
settled 5w ago
T+60d
Pending
in 23d

Price Chart

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Executive Summary

A cluster of 7 Anterix insiders, including the CEO, CFO, and Chief Regulatory Officer, sold a total of $3.41M in open-market shares over an 8-day window in mid-June 2026. While the dollar amount is modest relative to the $1.8B market cap (~0.19%), the participation of the entire C-suite and multiple directors in a coordinated selling pattern is notable.

Key Financial Metrics

Direction
selling
Total Value
$3.4M
Insiders
7

Key Facts

  • 7 insiders sold $3.41M in open-market shares from June 11-18, 2026.
  • Participants include CEO Lang Scott A., CFO Marquez Elena, and Chief Regulatory Officer Guttman-McCabe Christopher.
  • Total sales represent ~0.19% of the $1.8B market cap, a modest but notable proportion.
  • Director Thomas Kuhn also sold $888K in open-market shares on Aug 24, 2026, extending the selling pattern.

Financial Impact

Total insider sales of $3.41M represent ~0.19% of market cap, with the largest single sale being $1.73M by the Chief Regulatory Officer.

insider ownershipmarket sentiment

Risk Factors

  • Insider sales may be driven by routine portfolio diversification or 10b5-1 plans, reducing the bearish signal.
  • The company has strong analyst consensus (80% bullish) and a history of positive stock performance, which could offset selling pressure.
  • The cluster's dollar value is small relative to market cap, limiting its predictive power.

Market Snapshot

Exchange
Nasdaq
Sector
Telephone Communications (No Radiotelephone)
Analyst Consensus
80% bullish (10 analysts)

Investment Themes

Media & Telecom

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-ATEX-1787810612850
20 reports for ATEX
Performance horizon
100% Hit rate @ T+20 7 of 7 directional calls Went positive at some point 7 of 7 best @ T+60▲ +168.03%Apr 6, 2026
Filters
Rows
Reports for ATEX — sortable, filterable
TypeNow
Oct 27, 2026
today
SC 13G/A
NEUTRAL ★ 3/10
$79.27awaiting T+20—$85.62 (+8.01%)
Oct 9, 2026
18d ago
144
NEUTRAL ★ 3/10
$84.96awaiting T+20—$85.62 (+0.78%)
Sep 18, 2026
5w ago
8-K
NEUTRAL ★ 3/10
$83.62 $77.87▼ −6.88%▼ −5.97%$85.62 (+2.39%)
Sep 11, 2026
6w ago
Insider Cluster
NEUTRAL ★ 2/10
$77.59 $84.96▲ +9.50%▲ +6.98%$85.62 (+10.35%)
Aug 27, 2026
8w ago
Insider Cluster
NEUTRAL ★ 2/10
$92.33 $81.75▼ −11.46%▼ −11.22%$85.62 (−7.27%)
Aug 26, 2026
8w ago
Insider Cluster
BEARISH ★ 5/10
$94.67 $81.42▲ +14.00%▲ +14.28%$85.62 (+9.56%)
Aug 18, 2026
10w ago
Insider Cluster
BEARISH ★ 5/10
$88.68 $77.42▲ +12.70%▲ +11.86%$85.62 (+3.45%)
Aug 18, 2026
10w ago
Insider Cluster
BEARISH ★ 5/10
$88.68 $77.42▲ +12.70%▲ +11.86%$85.62 (+3.45%)
Aug 14, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$91.53 $77.59▼ −15.23%▼ −13.24%$85.62 (−6.46%)
Jul 29, 2026
12w ago
Press Release
NEUTRAL ★ 1/10
$93.58awaiting T+20—$85.62 (−8.51%)
Showing 10 of 20

US Market Status

Market Closed — Opens Wed (< 1m)

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Report published Aug 27, 2026