The sell cluster is small relative to market cap and lacks C-suite participation; treat as routine diversification or pre-scheduled trading. Monitor next 8-K (earnings or guidance) for any fundamental change, but no immediate action warranted based on this cluster alone.
Price Chart
Executive Summary
Three ARCB insiders sold a total of $1.26M in open-market sales within a week, including the CHRO ($863K) and two directors ($393K combined). While the cluster is entirely sells, the total is only ~0.04% of the $3.0B market cap, well below 0.1%, making it trivial in size and likely liquidity-driven. A director also made a $0 gift of 7,000 shares, further diluting the signal.
Key Financial Metrics
Key Facts
- Three insiders sold $1.26M total in open-market sales over a 7-day window.
- Total open-market sales were ~0.04% of ARCB's $3.0B market cap.
- CHRO Gattis Erin K sold 6,163 shares for $863K — the largest trade.
- Director MCREYNOLDS JUDY R also gifted 7,000 shares ($0 value) during the same period.
- No C-suite executives (CEO/CFO/COO) sold; trades were from HR officer and directors.
- No insider buying activity was detected in the cluster.
Financial Impact
Total open-market sales of $1.26M are ~0.04% of market cap, far below the 0.1% threshold for material insider cluster significance.
Risk Factors
- Insider selling could accelerate if earnings disappoint or macro headwinds affect the trucking sector.
- Cluster timing near earnings season may signal pre-blackout window selling, not an informational signal.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ARCB-1786129271421 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 15, 2026 6w ago | Institutional Cluster | $145.87 $134.80 | ▼ −7.59% | ▼ −5.61% | $133.74 (−8.31%) |
Aug 12, 2026 7w ago | Insider Cluster | $146.74 $134.86 | ▼ −8.10% | ▼ −6.35% | $133.74 (−8.86%) |
Aug 10, 2026 7w ago | Insider Cluster | $137.43 $138.10 | ▲ +0.48% | ▲ +1.40% | $133.74 (−2.68%) |
Aug 7, 2026 8w ago | Insider Cluster | $137.76 $141.12 | ▲ +2.44% | ▲ +2.84% | $133.74 (−2.91%) |
Aug 6, 2026 8w ago | Insider Cluster | $135.25 $137.34 | ▲ +1.55% | ▲ +0.95% | $133.74 (−1.11%) |
Aug 6, 2026 8w ago | Insider Cluster | $135.25 $137.34 | ▲ +1.55% | ▲ +0.95% | $133.74 (−1.11%) |
Jul 24, 2026 10w ago | 8-K | $154.30 $140.34 | ▼ −9.05% | ▼ −12.67% | $133.74 (−13.32%) |
Jun 4, 2026 17w ago | 8-K | $155.09 $142.37 | ▼ −8.20% | ▼ −10.06% | $133.74 (−13.76%) |
May 18, 2026 19w ago | 8-K | $118.70 $145.85 | ▲ +22.87% | ▲ +21.89% | $133.74 (+12.67%) |
Apr 24, 2026 23w ago | 8-K | $122.38 $124.41 | ▲ +1.66% | ▼ −2.37% | $133.74 (+9.29%) |
US Market Status
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