MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Price Chart
Executive Summary
Chairman & CEO Thomas Gallagher and EVP Shelly Brown sold a combined $3.64M in MIAX stock on June 2, 2026, all tied to same-day derivative exercises. The sales represent ~0.1% of MIAX's $3.8B market cap, a trivial amount. The cluster is driven by option exercises and vesting — a routine liquidity pattern, not a bearish signal.
Key Financial Metrics
Actionable Insight
This cluster is routine and non-informative — all sales are tied to option exercises, not open-market disposals. No bearish read-through. Monitor for any open-market selling by the CEO outside of option-exercise windows, which would carry more signal.
Key Facts
- Chairman & CEO Gallagher sold 70,000 shares at $42.36 for $2.97M, after exercising options at $0 and $12 per share.
- EVP Brown sold 16,000 shares at $42.12 for $674K, after exercising options at $0 and $12 per share.
- Total cluster value of $3.64M is ~0.1% of MIAX's $3.8B market cap — below the materiality threshold.
- All sales occurred on the same day and are directly linked to derivative exercises, consistent with tax-covering or routine diversification.
- No open-market purchases were made by any insider in the cluster window.
Financial Impact
Total insider sales of $3.64M, representing ~0.1% of market cap — immaterial relative to company size.
Risk Factors
- Insider sales tied to option exercises can occasionally precede broader selling, but this pattern alone is not predictive.
- The CEO's $2.97M sale is his largest single-day disposition in the filing window, but is mechanically linked to the option exercise.
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MIAX-1780605517810 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 12, 2026
4d ago
|
Insider Cluster
| $44.11 $40.24 | ▼ −8.77% | ▼ −8.18% | $40.24 (−8.77%) |
|
Jun 11, 2026
5d ago
|
Institutional Cluster
| $41.27 $43.29 | ▲ +4.89% | ▲ +4.35% | $40.24 (−2.50%) |
|
Jun 11, 2026
5d ago
|
Institutional Cluster
| $41.27 $43.29 | ▲ +4.89% | ▲ +4.35% | $40.24 (−2.50%) |
|
Jun 4, 2026
12d ago
|
Insider Cluster
| $39.21 $38.74 | ▼ −1.20% | ▼ −1.43% | $40.24 (+2.63%) |
|
Jun 4, 2026
12d ago
|
Insider Cluster
| $39.21 $38.74 | ▲ +1.20% | ▲ +1.43% | $40.24 (−2.63%) |
|
Jun 4, 2026
12d ago
|
Insider Cluster
| $39.21 $38.74 | ▼ −1.20% | ▼ −1.43% | $40.24 (+2.63%) |
|
Jun 4, 2026
12d ago
|
Insider Cluster
| $39.21 $38.74 | ▼ −1.20% | ▼ −1.43% | $40.24 (+2.63%) |
|
May 6, 2026
5w ago
|
8-K
| $49.77 $51.99 | ▲ +4.46% | ▲ +3.63% | $40.24 (−19.15%) |
|
May 4, 2026
6w ago
|
Insider Cluster
| $47.31 $47.71 | ▲ +0.85% | ▲ +0.05% | $40.24 (−14.94%) |
|
May 4, 2026
6w ago
|
Insider Cluster
| $47.31 $47.71 | ▼ −0.85% | ▼ −0.05% | $40.24 (+14.94%) |
US Market Status
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