The cluster is too small relative to market cap to warrant a directional trade. Monitor the next 10-Q for any fundamental deterioration that might explain the consistent selling pattern, but no immediate action is needed.
Price Chart
Executive Summary
Two ATNI insiders—the SVP & General Counsel and a 10% owner—sold a combined $241K in open-market shares over a 7-day window, with the General Counsel's $161K sale being the larger tranche. At $488M market cap, the cluster represents ~0.05% of float, well below the 0.1% materiality threshold, making this a routine liquidity-driven event. The 30-day trailing insider activity shows 9 sells totaling $529K, reinforcing a consistent pattern of non-informative selling rather than a concentrated bearish signal.
Key Financial Metrics
Key Facts
- Two insiders sold a total of $241K in open-market transactions over 7 days
- SVP & General Counsel Mary Mabey sold 5,000 shares for $161K on 2026-08-10
- 10% owner Cornelius B. Prior Jr. sold 2,500 shares for $80K on 2026-08-13
- Cluster value is ~0.05% of ATNI's $488M market cap, below the 0.1% materiality floor
- 30-day trailing insider activity shows 9 sells totaling $529K, consistent with routine diversification/vesting patterns
Financial Impact
$241K total insider sales, representing ~0.05% of market cap
Risk Factors
- Continued insider selling could accumulate into a more material signal if it accelerates above 0.5% of market cap
- The 30-day selling pattern (9 sells, $529K) may reflect a broader insider sentiment shift not yet captured by the small cluster
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ATNI-1787036540160 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 22, 2026 5d ago | Press Release | $25.91 | awaiting T+20 | — | $25.95 (+0.15%) |
Sep 23, 2026 4w ago | Press Release | $29.14 $26.23 | ▼ −9.99% | ▼ −9.57% | $25.95 (−10.95%) |
Sep 18, 2026 5w ago | Insider Cluster | $29.36 $25.25 | ▼ −14.01% | ▼ −13.10% | $25.95 (−11.62%) |
Sep 18, 2026 5w ago | SC 13D/A | $28.43 $25.75 | ▼ −9.44% | ▼ −9.64% | $25.95 (−8.73%) |
Sep 4, 2026 7w ago | Insider Cluster | $30.93 $28.10 | ▼ −9.15% | ▼ −9.75% | $25.95 (−16.10%) |
Sep 2, 2026 7w ago | Insider Cluster | $30.91 $28.04 | ▼ −9.29% | ▼ −9.13% | $25.95 (−16.05%) |
Aug 26, 2026 8w ago | Insider Cluster | $29.69 $29.14 | ▼ −1.85% | ▼ −1.34% | $25.95 (−12.60%) |
Aug 19, 2026 9w ago | Insider Cluster | $31.14 $28.73 | ▼ −7.74% | ▼ −7.62% | $25.95 (−16.67%) |
Aug 17, 2026 10w ago | Insider Cluster | $31.10 $29.45 | ▼ −5.28% | ▼ −3.54% | $25.95 (−16.55%) |
Aug 12, 2026 10w ago | Insider Cluster | $31.87 $30.32 | ▼ −4.86% | ▼ −3.12% | $25.95 (−18.58%) |
US Market Status
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