Buys
Open market- Shares
- Avg price
- Total value
Thomas P. Gallagher - Chairman & CEO, Director at MIAMI INTERNATIONAL HOLDINGS, INC.
Issuer-level insider activity
- Role
- Chairman & CEO, Director
- Issuer ticker
- MIAX on NYSE
- Entity type
- Individual
- Source filing history
- Open source filing history
Identity
Names, identifiers, and filing context for this profile.
1 identity field
Source evidence
Original filing metadata and source links for verification.
1 source field
Past-year transaction volume for Thomas P. Gallagher in MIAMI INTERNATIONAL HOLDINGS, INC.
Sells
Open market- Shares
- -552,359
- Avg price
- $43.72
- Total value
- -$24,149,662
Net
Past year- Shares
- -552,359
- Share %
- -100%
- Total value
- -$24,149,662
Reported holdings for Thomas P. Gallagher in MIAMI INTERNATIONAL HOLDINGS, INC.
Form 4 holding
Chairman & CEO, Director
MIAMI INTERNATIONAL HOLDINGS, INC.
- Security class
- Common Stock
- Shares / value
- 1,723,275
- Estimated value
- $78,736,434
- Report date
- 04 Aug 2026
- Price
- $45.69
- Ownership
- By Gallagher Investments, LLC
Form 4 holding
Chairman & CEO, Director
MIAMI INTERNATIONAL HOLDINGS, INC.
- Security class
- Common Stock
- Shares / value
- 743,939
- Estimated value
- $28,954,105
- Report date
- 16 Jun 2026
- Price
- $38.92
- Ownership
- Direct
Form 4 holding
Chairman & CEO, Director
MIAMI INTERNATIONAL HOLDINGS, INC.
- Security class
- Nonqualified Stock Option (Right to Buy)
- Shares / value
- 237,175
- Estimated value
- Report date
- 16 Jun 2026
- Price
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
Form 4 holding
Chairman & CEO, Director
MIAMI INTERNATIONAL HOLDINGS, INC.
- Security class
- Nonqualified Stock Option (Right to Buy)
- Shares / value
- 235,000
- Estimated value
- Report date
- 04 Aug 2026
- Price
- Ownership
- By Gallagher Investments, LLC
- Underlying class
- Common Stock
- Underlying amount
Form 4 holding
Chairman & CEO, Director
MIAMI INTERNATIONAL HOLDINGS, INC.
- Security class
- Incentive Stock Option (Right to Buy)
- Shares / value
- 2,485
- Estimated value
- Report date
- 16 Jun 2026
- Price
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
Form 4 holding
Chairman & CEO, Director
MIAMI INTERNATIONAL HOLDINGS, INC.
- Security class
- Series B Preferred Stock
- Shares / value
- 0
- Estimated value
- Report date
- 15 Aug 2025
- Price
- Ownership
- By Gallagher Investments, LLC
- Underlying class
- Common Stock
- Underlying amount
Transaction history for Thomas P. Gallagher in MIAMI INTERNATIONAL HOLDINGS, INC.
| Sym | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares after | Date | Ownership |
|---|
* marks a reported price that did not pass the local price check.