The cluster is likely driven by scheduled option exercises and tax planning, not a negative view on the company. No immediate bearish signal. Monitor for any subsequent insider buying or unusual volume in the coming weeks.
Price Chart
Executive Summary
Multiple insiders at MIAX, including the CEO and EVP/GC, sold shares totaling ~$6.1M in a cluster from July 6-13, 2026. The sales follow option exercises and appear to be routine liquidity/planning transactions rather than a bearish signal. The total open-market sales represent ~0.15% of market cap, which is modest and not alarming.
Key Financial Metrics
Key Facts
- CEO Thomas P. Gallagher exercised options and sold 70,000 shares at $42.52 for ~$2.98M on July 13.
- EVP/GC Barbara J. Comly exercised options and sold 28,000 shares at $41.98 for ~$1.18M same day.
- Three other executives sold smaller amounts: EVP/CSO Brown ($674K), EVP/CISO Jayabalan ($842K), EVP Deitzel ($462K) on July 6.
- Total open-market sales of ~$6.1M equal ~0.15% of MIAX's $4.0B market cap.
- Derivative exercises (non-cash transactions) accompanied the CEO and EVP/GC sales, indicating planned exercise-and-sell plans.
Financial Impact
~$6.1M in insider open-market sales, ~0.15% of market cap
Risk Factors
- Insider selling clusters, even if planned, can create negative sentiment among retail traders.
- Further unplanned sales by insiders could signal deteriorating confidence.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MIAX-1784102791181 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 26, 2026 today | Insider Cluster | — | awaiting T+1 | — | — |
Oct 1, 2026 25d ago | Press Release | $33.75 $33.01 | ▼ −2.19% | ▼ −2.93% | $33.16 (−1.75%) |
Sep 4, 2026 7w ago | Insider Cluster | $43.46 $42.89 | ▼ −1.31% | ▼ −0.85% | $33.16 (−23.70%) |
Sep 4, 2026 7w ago | Insider Cluster | $43.46 $42.89 | ▼ −1.31% | ▼ −0.85% | $33.16 (−23.70%) |
Aug 19, 2026 9w ago | Insider Cluster | $41.32 $42.59 | ▲ +3.07% | ▲ +2.66% | $33.16 (−19.75%) |
Aug 19, 2026 9w ago | Insider Cluster | $41.32 $42.59 | ▼ −3.07% | ▼ −2.66% | $33.16 (+19.75%) |
Aug 6, 2026 11w ago | Insider Cluster | $44.23 $43.59 | ▲ +1.45% | ▲ +1.42% | $33.16 (+25.03%) |
Jul 16, 2026 14w ago | Insider Cluster | $42.33 $42.04 | ▼ −0.69% | ▼ −0.52% | $33.16 (−21.66%) |
Jul 14, 2026 14w ago | Insider Cluster | $42.43 $42.89 | ▲ +1.08% | ▲ +1.63% | $33.16 (−21.85%) |
Jul 7, 2026 15w ago | Insider Cluster | $41.86 $42.99 | ▲ +2.70% | ▲ +1.85% | $33.16 (−20.78%) |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers