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Insider Cluster (8 insiders) ·Filed Jul 7, 2026

MIAX

MIAMI INTERNATIONAL HOLDINGS, INC.
MIXED
Impact 5/10
Horizondays Processed3mo ago
Insider cluster: 8 insiders, $6.6M total
Actionable Insight ◆ Mixed

This cluster is predominantly option-cashout selling with no open-market purchases — typical of insiders monetizing equity awards, not a bearish signal. Monitor for any 10b5-1 adoption disclosures on future filings; absent those, treat as routine compensation cycling. The 67% analyst bullish consensus is unchanged by this filing.

DirectionMixed
Confidencemedium
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
MIAX ▼ -19.37% at T+60d
NEUTRAL call -19.37% · α vs SPY -21.87% · entry $41.86 → $33.75
Entry = T+0 close
Jul 7, 2026
via day close
T+1d
+2.70%
call +2.70% · α +1.85%
$42.99
settled 4mo ago
T+5d
+1.36%
call +1.36% · α +0.10%
$42.43
settled 3mo ago
T+20d
+9.79%
call +9.79% · α +6.52%
$45.96
settled 3mo ago
T+60d
-19.37%
call -19.37% · α -21.87%
$33.75
settled 26d ago

Price Chart

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Executive Summary

MIAX insiders executed a cluster of sales totaling $6.63M over 7 days, led by the CEO and multiple C-suite executives. Most sales are option exercises followed by open-market dispositions, a routine pattern that substantially reduces the informational signal.

Key Financial Metrics

Direction
selling
Total Value
$6.6M
Insiders
8

Key Facts

  • 8 insiders sold ~165K shares totaling $6.63M in 7 days (0.17% of $4.0B market cap)
  • CEO Thomas Gallagher sold 70K shares for $2.95M, all tied to option exercises at $12 exercise price
  • EVP/CIO Schafer sold 48K shares for $1.98M; EVP/GC Comly sold 28K shares for $1.15M
  • All equity sales are same-day open-market dispositions following derivative exercises — a typical compensation-related pattern, not opportunistic selling
  • No open-market purchases by any insider in the cluster window

Financial Impact

$6.63M in gross insider sales, ~0.17% of $4.0B market cap

insider ownershipfloat

Risk Factors

  • Uniform C-suite selling before earnings could indicate unreported headwinds
  • No insider buying alongside selling suggests no conviction on current valuation support

Market Snapshot

Exchange
NYSE
Sector
Security Brokers, Dealers & Flotation Companies
Analyst Consensus
67% bullish (12 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-1783670574019
42 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 26, 2026
today
Insider Cluster
NEUTRAL ★ 2/10
—awaiting T+1——
Oct 1, 2026
25d ago
Press Release
NEUTRAL ★ 1/10
$33.75 $33.01▼ −2.19%▼ −2.93%$33.16 (−1.75%)
Sep 4, 2026
7w ago
Insider Cluster
NEUTRAL ★ 3/10
$43.46 $42.89▼ −1.31%▼ −0.85%$33.16 (−23.70%)
Sep 4, 2026
7w ago
Insider Cluster
NEUTRAL ★ 2/10
$43.46 $42.89▼ −1.31%▼ −0.85%$33.16 (−23.70%)
Aug 19, 2026
9w ago
Insider Cluster
MIXED ★ 5/10
$41.32 $42.59▲ +3.07%▲ +2.66%$33.16 (−19.75%)
Aug 19, 2026
9w ago
Insider Cluster
BEARISH ★ 5/10
$41.32 $42.59▼ −3.07%▼ −2.66%$33.16 (+19.75%)
Aug 6, 2026
11w ago
Insider Cluster
BEARISH ★ 6/10
$44.23 $43.59▲ +1.45%▲ +1.42%$33.16 (+25.03%)
Jul 16, 2026
14w ago
Insider Cluster
NEUTRAL ★ 5/10
$42.33 $42.04▼ −0.69%▼ −0.52%$33.16 (−21.66%)
Jul 14, 2026
14w ago
Insider Cluster
NEUTRAL ★ 3/10
$42.43 $42.89▲ +1.08%▲ +1.63%$33.16 (−21.85%)
Jul 7, 2026
15w ago
Insider Cluster
MIXED ★ 5/10
$41.86 $42.99▲ +2.70%▲ +1.85%$33.16 (−20.78%)
Showing 10 of 42

US Market Status

Market Closed — Opens Tue (16h 42m)

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Report published Jul 10, 2026