A cluster of insider sales at Miami International Holdings includes the Chairman & CEO and CFO liquidating shares worth ~$8.9M in open-market transactions over two days, with the CEO alone selling $6.2M. While the total gross value is notable, the cluster size (2 C-suite sellers) and dollar amount relative to the $4.0B market cap (~0.2%) fall below the materiality threshold for a strong bearish signal. The CEO's large sale at $41.13 and the CFO's $1.5M sale at $42.83 are partially offset by routine tax-withholding transactions (non-cash) and a small director exercise/sale, suggesting a mix of liquidity/planning and potential caution near current levels.
Price Chart
Executive Summary
A cluster of insider sales at Miami International Holdings includes the Chairman & CEO and CFO liquidating shares worth ~$8.9M in open-market transactions over two days, with the CEO alone selling $6.2M. While the total gross value is notable, the cluster size (2 C-suite sellers) and dollar amount relative to the $4.0B market cap (~0.2%) fall below the materiality threshold for a strong bearish signal. The CEO's large sale at $41.13 and the CFO's $1.5M sale at $42.83 are partially offset by routine tax-withholding transactions (non-cash) and a small director exercise/sale, suggesting a mix of liquidity/planning and potential caution near current levels.
Key Financial Metrics
Key Facts
- Chairman & CEO Thomas Gallagher sold 149,700 shares open-market at $41.13 for $6.2M on 2026-08-19.
- CFO Lance Emmons sold 35,000 shares open-market at $42.83 for $1.5M on 2026-08-17.
- EVP Barbara Comly and CEO Thomas Gallagher had tax-withholding transactions totaling ~$8.2M (non-cash, shares surrendered).
- Director Cynthia Schwarzkopf exercised options then sold 5,000 shares at $42.85 for $214K.
- Total open-market sales by C-suite: ~$8.9M; as % of $4.0B market cap = ~0.22%.
- Prior recent insider selling (30d): 3 sells totaling $7.9M, per market data.
Financial Impact
~$8.9M in open-market insider selling over 2 days, representing 0.22% of market cap
Risk Factors
- CEO's large open-market sale could signal muted near-term outlook if repeated in coming weeks.
- Tax-withholding transactions are routine but large in dollar amount — not a bearish signal per se, but they reduce insider alignment.
- No identifiable corporate catalyst (earnings, M&A, guidance) adjacent to these trades to explain the timing.
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-1787292308769 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 1, 2026 25d ago | Press Release | $33.75 $33.01 | ▼ −2.19% | ▼ −2.93% | $33.39 (−1.07%) |
Sep 4, 2026 7w ago | Insider Cluster | $43.46 $42.89 | ▼ −1.31% | ▼ −0.85% | $33.39 (−23.17%) |
Sep 4, 2026 7w ago | Insider Cluster | $43.46 $42.89 | ▼ −1.31% | ▼ −0.85% | $33.39 (−23.17%) |
Aug 19, 2026 9w ago | Insider Cluster | $41.32 $42.59 | ▲ +3.07% | ▲ +2.66% | $33.39 (−19.19%) |
Aug 19, 2026 9w ago | Insider Cluster | $41.32 $42.59 | ▼ −3.07% | ▼ −2.66% | $33.39 (+19.19%) |
Aug 6, 2026 11w ago | Insider Cluster | $44.23 $43.59 | ▲ +1.45% | ▲ +1.42% | $33.39 (+24.51%) |
Jul 16, 2026 14w ago | Insider Cluster | $42.33 $42.04 | ▼ −0.69% | ▼ −0.52% | $33.39 (−21.12%) |
Jul 14, 2026 14w ago | Insider Cluster | $42.43 $42.89 | ▲ +1.08% | ▲ +1.63% | $33.39 (−21.31%) |
Jul 7, 2026 15w ago | Insider Cluster | $41.86 $42.99 | ▲ +2.70% | ▲ +1.85% | $33.39 (−20.23%) |
Jul 7, 2026 15w ago | Insider Cluster | $41.86 $42.99 | ▲ +2.70% | ▲ +1.85% | $33.39 (−20.23%) |
US Market Status
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