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Insider ActivityMIAX
Gallagher Thomas P., Chairman & CEO, Director at MIAMI INTERNATIONAL HOLDINGS, INC., traded $300K of MIAX
Updated Jun 21, 2026
Gallagher Thomas P.
Chairman & CEO, Director
MIAMI INTERNATIONAL HOLDINGS, INC. ·
$MIAX
Transaction Details
| Insider | Gallagher Thomas P. |
|---|---|
| Title | Chairman & CEO, Director |
| Company | MIAMI INTERNATIONAL HOLDINGS, INC. |
| Ticker | MIAX |
| Transaction Type | Exercise |
| Transaction Date | 2026-05-11 |
| Shares Traded | 24,999 |
| Price Per Share | $12 |
| Total Value | $300K |
| Filed Date | 2026-05-13 |
| Accession Number | 0002080477-26-000008 |
Ownership Context
| Shares Owned After Transaction | 510,962 |
|---|---|
| Ownership Type | Direct |
SEC Filing
Accession: 0002080477-26-000008
Other Insider Trades — MIAX
| Insider | Title | Action | Value | Date |
|---|---|---|---|---|
| Stahlin Paul | Director | traded | — | 2026-06-16 |
| Teekell Judson Gray | Director | traded | — | 2026-06-16 |
| Beckelman John | Director | traded | — | 2026-06-16 |
| Raymond Mark F. | Director | traded | — | 2026-06-16 |
| Sites Eric | Director | traded | — | 2026-06-16 |
| Moore Lisa | Director | traded | — | 2026-06-16 |
| Eckert Kurt M. | Director | traded | — | 2026-06-16 |
| Eckert Kurt M. | Director | traded | — | 2026-06-16 |
| Raymond Mark F. | Director | traded | $192K | 2026-06-16 |
| Lozier Kenneth W. | Director | traded | — | 2026-06-16 |
Other Trades by Gallagher Thomas P.
| Ticker | Company | Action | Value | Date |
|---|---|---|---|---|
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | traded | — | 2026-06-16 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | traded | — | 2026-06-16 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | traded | — | 2026-06-16 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | traded | $840K | 2026-06-02 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | sold | $3.0M | 2026-06-02 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | traded | $189K | 2026-05-05 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | sold | $756K | 2026-05-05 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | traded | $651K | 2026-05-04 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | sold | $2.6M | 2026-05-04 |
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | sold | $4.5M | 2026-04-15 |
Full Ticker Profile
View all insider trades, dark pool activity, congressional filings, and the Whisper Score for MIAX — MIAMI INTERNATIONAL HOLDINGS, INC. →
Whisper Score — MIAX
88.07
Full Degen
Current Whisper Score
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Data sourced from SEC Form 4 insider trading filings. Transaction details are as reported to the Securities and Exchange Commission. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of SEC filings.
Last updated: June 21, 2026 at 07:15 UTC