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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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MIAXCluster BuyAugust 2025
MIAMI INTERNATIONAL HOLDINGS, INC.
MIAX Insider Cluster Buy — August 2025
$864,926
10 insiders at MIAMI INTERNATIONAL HOLDINGS, INC., Financial Services ($4.52B 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/ef3d186d6b9e3780c733a51fc8379458
Timeline
When Each Insider Bought
- Director$126.5KLisa Moore (Director) bought $126.5K on Aug 13, 2025
- EVP, CISO and CRO$57.5KHarish Jayabalan (EVP, CISO and CRO) bought $57.5K on Aug 13, 2025
- Director$23KPaul Stahlin (Director) bought $23K on Aug 13, 2025
- Director$57.5KJamil Nazarali (Director) bought $57.5K on Aug 13, 2025
- EVP Traded Products & Relation$115KJohn Smollen (EVP Traded Products & Relation) bought $115K on Aug 13, 2025
- EVP, CRO, CCO MIAX Exchanges$2.3KEdward Deitzel (EVP, CRO, CCO MIAX Exchanges) bought $2.3K on Aug 13, 2025
- Chairman & CEO$276KThomas P Gallagher (Chairman & CEO) bought $276K on Aug 13, 2025
- Director$23KKenneth W Lozier (Director) bought $23K on Aug 13, 2025
- Director$34.5KMark I Massad (Director) bought $34.5K on Aug 13, 2025
- Director$11.5KMark I Massad (Director) bought $11.5K on Aug 13, 2025
- Director$80.5KMark I Massad (Director) bought $80.5K on Aug 13, 2025
- Director$57.5KMark I Massad (Director) bought $57.5K on Aug 13, 2025
- EVP and CFO$126Lance Emmons (EVP and CFO) bought $126 on Aug 14, 2025
- Aug 13, 2025Lisa Moore · Director$126.5K
- Aug 13, 2025Harish Jayabalan · EVP, CISO and CRO$57.5K
- Aug 13, 2025Paul Stahlin · Director$23K
- Aug 13, 2025Jamil Nazarali · Director$57.5K
- Aug 13, 2025John Smollen · EVP Traded Products & Relation$115K
- Aug 13, 2025Edward Deitzel · EVP, CRO, CCO MIAX Exchanges$2.3K
- Aug 13, 2025Thomas P Gallagher · Chairman & CEO$276K
- Aug 13, 2025Kenneth W Lozier · Director$23K
- Aug 13, 2025Mark I Massad · Director$34.5K
- Aug 13, 2025Mark I Massad · Director$11.5K
- Aug 13, 2025Mark I Massad · Director$80.5K
- Aug 13, 2025Mark I Massad · Director$57.5K
- Aug 14, 2025Lance Emmons · EVP and CFO$126
Market context
MIAX market snapshot
Last enriched May 6, 2026 at 7:47 AM EDT.
Filings
Transactions in This Cluster
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Public Form 4 filings, normalized for cleaner scanning.
| Ticker | Type & Role | Value | Filed |
|---|---|---|---|
Cluster Buy CFO | $126 | ||
Cluster Buy Director | $126.5K | ||
Cluster Buy Officer | $57.5K | ||
Cluster Buy Director | $23K | ||
Cluster Buy Director | $57.5K | ||
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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
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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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Cluster logic
Cluster buys mean multiple insiders buying the same ticker inside a short window.
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