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Insider Cluster (2 insiders) ·Filed Oct 26, 2026

MIAX

MIAMI INTERNATIONAL HOLDINGS, INC.
NEUTRAL
Impact 2/10
Horizondays Processed1d 2h ago
Insider cluster: 2 insiders, $712K total
Actionable Insight • Neutral

Both sales are pre-planned 10b5-1 trades tied to option exercises, not opportunistic selling. The dollar amount is trivial relative to market cap. No actionable signal for traders; monitor next 10-Q for any fundamental changes.

DirectionNeutral
Confidencehigh
Horizondays

Price Chart

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Executive Summary

Two EVPs at MIAH sold a combined $712K in open-market sales on October 22, 2026, with both trades executed under 10b5-1 plans. The sales represent 0.02% of market cap and are part of routine derivative exercises and tax-related dispositions, not a discretionary signal.

Key Financial Metrics

Direction
selling
Total Value
$711.7K
Insiders
2

Key Facts

  • EVP & CIO Douglas Schafer sold 8,000 shares at $35.06 for $280,480 under a 10b5-1 plan
  • EVP, GC & Corporate Secretary Barbara Comly sold 12,306 shares at $35.04 for $431,202 under a 10b5-1 plan
  • Both sales were preceded by derivative exercises (options at $12 and $0 strike) on the same day
  • Total open-market sale value is $711,682, or 0.02% of MIAH's $3.5B market cap
  • No open-market purchases were reported in the 7-day window

Financial Impact

Total insider sales of $712K, representing 0.02% of market cap; immaterial relative to company size

dilution

Risk Factors

  • Insider selling is routine and plan-based; no elevated risk of adverse news
  • No unplanned insider sales detected in this cluster

Market Snapshot

Exchange
NYSE
Sector
Security Brokers, Dealers & Flotation Companies
Analyst Consensus
62% bullish (13 analysts)

Investment Themes

Traditional Finance

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-MIAX-1793045210694
43 reports for MIAX
Performance horizon
67% Hit rate @ T+1 6 of 9 directional calls Went positive at some point 9 of 9 best @ T+5▲ +10.93%May 6, 2026
Filters
Rows
Reports for MIAX — sortable, filterable
TypeNow
Oct 27, 2026
today
SC 13G/A
NEUTRAL ★ 2/10
$33.03awaiting T+1—$32.53 (−1.51%)
Oct 26, 2026
1d ago
Insider Cluster
NEUTRAL ★ 2/10
$33.16awaiting T+1—$32.53 (−1.90%)
Oct 1, 2026
26d ago
Press Release
NEUTRAL ★ 1/10
$33.75 $33.01▼ −2.19%▼ −2.93%$32.53 (−3.61%)
Sep 4, 2026
7w ago
Insider Cluster
NEUTRAL ★ 3/10
$43.46 $42.89▼ −1.31%▼ −0.85%$32.53 (−25.15%)
Sep 4, 2026
7w ago
Insider Cluster
NEUTRAL ★ 2/10
$43.46 $42.89▼ −1.31%▼ −0.85%$32.53 (−25.15%)
Aug 19, 2026
9w ago
Insider Cluster
MIXED ★ 5/10
$41.32 $42.59▲ +3.07%▲ +2.66%$32.53 (−21.27%)
Aug 19, 2026
9w ago
Insider Cluster
BEARISH ★ 5/10
$41.32 $42.59▼ −3.07%▼ −2.66%$32.53 (+21.27%)
Aug 6, 2026
11w ago
Insider Cluster
BEARISH ★ 6/10
$44.23 $43.59▲ +1.45%▲ +1.42%$32.53 (+26.45%)
Jul 16, 2026
14w ago
Insider Cluster
NEUTRAL ★ 5/10
$42.33 $42.04▼ −0.69%▼ −0.52%$32.53 (−23.15%)
Jul 14, 2026
15w ago
Insider Cluster
NEUTRAL ★ 3/10
$42.43 $42.89▲ +1.08%▲ +1.63%$32.53 (−23.33%)
Showing 10 of 43

US Market Status

Market Closed — Opens Wed (< 1m)

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Report published Oct 26, 2026