The cluster is too small relative to market cap to carry a meaningful signal. Institutional holdings show recent trimming by top holders Principal Financial Group and Bank Of New York Mellon, but the insider dollar amounts are noise. No material read-through for the stock.
Price Chart
Executive Summary
Two ARCB insiders (CHRO Gattis and Director McReynolds) sold a combined ~$1.08M in open-market sales within a 7-day window, representing ~0.04% of the company's $3.0B market cap. The sales are trivial relative to market cap and likely driven by personal liquidity or portfolio rebalancing — not an informed signal. Non-cash gifts by McReynolds ($0 value) do not add directional weight.
Key Financial Metrics
Key Facts
- Director Judy McReynolds sold 2,943 shares for ~$418K (two separate trades) and gifted 7,000 shares ($0 value) on Aug 4-6.
- CHRO Erin Gattis sold 6,163 shares for ~$863K on Aug 4 at $140/share — the largest single trade.
- Total open-market sales = ~$1.08M, only 0.04% of ARCB's $3.0B market cap — well below the 0.1% materiality threshold.
- No C-suite buys or cluster of insider purchases occurred — direction is entirely selling.
- Per proportionality threshold, <0.1% of market cap is trivial/ routine for a $3B company.
Financial Impact
0.04% of market cap ($1.08M / $3.0B)
Risk Factors
- Further insider selling could emerge if the stock continues to trade near $140+ levels.
- History on this ticker shows cluster reports have been predominantly neutral — prior neutral calls averaged +11% T+20 alpha, suggesting this stock is often driven by fundamentals, not insider flows.
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-1786112019767 |
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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