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Single filing record
This page shows the rows from one Form 4 filing as reported to the SEC.
Cluster buy
MIAX Insider Cluster Buy, August 2025
10 insiders at MIAMI INTERNATIONAL HOLDINGS, INC. bought a combined $864.9K between Aug 13, 2025 and Aug 18, 2025. Learn more
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Cluster BuyMIAX
10 insiders at MIAMI INTERNATIONAL HOLDINGS, INC.
MIAX Insider Cluster Buy, August 2025 · $864.9K
Cluster of 10 insiders bought a combined $864.9K of MIAX between Aug 13, 2025 and Aug 18, 2025.
Cluster details
Cluster details
10 insiders at MIAMI INTERNATIONAL HOLDINGS, INC., Financial Services ($4.93B market cap) bought a combined $864,926 in 5 days, 0.02% of the market cap.
Largest member: Thomas P Gallagher (Chairman & CEO) at $276K.
Permalink https://bluecollarpicks.com/insider-trading/MIAX/cluster/2025-08-13-10-insiders-miami-international
Timeline
When each insider bought
Aug 13, 2025 – Aug 18, 2025
- Aug 13, 2025Lisa MooreDirector$126.5K
- Aug 13, 2025Harish JayabalanEVP, CISO and CRO$57.5K
- Aug 13, 2025Paul StahlinDirector$23K
- Aug 13, 2025Jamil NazaraliDirector$57.5K
- Aug 13, 2025John SmollenEVP Traded Products & Relation$115K
- Aug 13, 2025Edward DeitzelEVP, CRO, CCO MIAX Exchanges$2.3K
- Aug 13, 2025Thomas P GallagherChairman & CEO$276K
- Aug 13, 2025Kenneth W LozierDirector$23K
- Aug 13, 2025Mark I MassadDirector$34.5K
- Aug 13, 2025Mark I MassadDirector$11.5K
- Aug 13, 2025Mark I MassadDirector$80.5K
- Aug 13, 2025Mark I MassadDirector$57.5K
- Aug 14, 2025Lance EmmonsEVP and CFO$126
Market context
MIAX market snapshot
Current price$40.33
1-day change-5.13%
Market cap$4.93B
SectorFinancial Services
$40.33
Current price$40.33
Analyst target$49.20 (-5.4%)
Last enriched June 5, 2026 at 7:36 AM EDT.
Filings
Transactions in This Cluster
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Public Form 4 filings, normalized for cleaner scanning. What do these codes mean?
| Ticker | Type & Role | Value | |
|---|---|---|---|
Cluster Buy CFO | $126 | ||
Cluster Buy Director | $126.5K | ||
Cluster Buy Officer | $57.5K | ||
Cluster Buy Director | $23K | ||
Cluster Buy Director | $57.5K | ||
Cluster Buy Officer | $115K | ||
Cluster Buy Officer | $2.3K | ||
Cluster Buy CEO | $276K | ||
Cluster Buy Director | $23K | ||
Cluster Buy Director | $34.5K | ||
Cluster Buy Director | $11.5K | ||
Cluster Buy Director | $80.5K | ||
Cluster Buy Director | $57.5K | ||
$126
Cluster Buy CFO
$126.5K
Cluster Buy Director
$57.5K
Cluster Buy Officer
$23K
Cluster Buy Director
$57.5K
Cluster Buy Director
$115K
Cluster Buy Officer
$2.3K
Cluster Buy Officer
$276K
Cluster Buy CEO
$23K
Cluster Buy Director
$34.5K
Cluster Buy Director
$11.5K
Cluster Buy Director
$80.5K
Cluster Buy Director
$57.5K
Cluster Buy Director
Cluster detail
Cluster members
Ticker context
Ticker summary
Recent insider activity for this company.
Insider detail
Insider activity
Recent transactions grouped by reporting owner.
Filters
Filters
Context
Why This Cluster May Matter
Cluster buying occurs when multiple insiders purchase shares within a short window, often before a material company announcement. This cluster involved 10 insiders over 5 days, totaling $864,926 across 13 filings.
Insiders are required to report purchases within two business days via SEC Form 4. Every transaction on this page links back to the original filing on EDGAR. Learn more about cluster buying.
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Method Public Form 4 filings, normalized for cleaner scanning. Filtered rows stay available in All Form 4 Filings and ticker history. Which view should I use? →
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