Insidervault
LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
Reporting ownerCIK 0002080477

Thomas P. Gallagher

46 transactions in one company, from February 10, 2026 to September 3, 2026.

Transactions
461 company
Bought · P
$0open market
Sold · S
$32.3Mopen market
Net
−$32.3Mnet selling

By company

Where this insider traded.

CompanyTickerTradesBoughtSold
MIAMI INTERNATIONAL HOLDINGS, INC.MIAX46—$32.3M

All transactions

46 in total, newest filings first.

CompanyTickerInsiderDateCodeSharesPriceValue
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVSep 3MPLAN4,464$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVSep 3MPLAN13,140$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVSep 3MPLAN8,333$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVSep 3MPLAN16,666$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVSep 3MPLAN47,000$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOSep 3MPLAN4,464$22.40$100K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOSep 3MPLAN13,140$15.22$200K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOSep 3MPLAN8,333$12.00$100K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOSep 3MPLAN16,666$12.00$200K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOSep 3SPLAN47,000$42.43$2.0M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOSep 3MPLAN47,000$12.00$564K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOAug 19SPLAN149,700$41.13$6.2M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOAug 18FPLAN150,300$42.41$6.4M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVAug 4MPLAN48,334$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOAug 4SPLAN48,334$45.69$2.2M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOAug 4MPLAN48,334$12.00$580K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVJul 13MPLAN70,000$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJul 13SPLAN70,000$42.52$3.0M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJul 13MPLAN70,000$12.00$840K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVJul 7MPLAN28,228$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVJul 6MPLAN41,772$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJul 7SPLAN28,228$42.27$1.2M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJul 7MPLAN28,228$12.00$339K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJul 6SPLAN41,772$42.09$1.8M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJul 6MPLAN41,772$12.00$501K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVJun 16A237,175$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVJun 16A2,485$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJun 16A232,977$0.00—
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVJun 2MPLAN70,000$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJun 2SPLAN70,000$42.36$3.0M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOJun 2MPLAN70,000$12.00$840K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVMay 11M24,999$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOMay 11M24,999$12.00$300K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVMay 5MPLAN15,771$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOMay 5SPLAN15,771$47.92$756K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOMay 5MPLAN15,771$12.00$189K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVMay 4MPLAN54,229$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOMay 4SPLAN54,229$47.26$2.6M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOMay 4MPLAN54,229$12.00$651K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEODERIVApr 15MPLAN70,001$0.00—?
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOApr 15SPLAN49,900$43.68$2.2M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOApr 15SPLAN104,124$43.36$4.5M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOApr 15SPLAN70,001$43.36$3.0M
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOApr 15MPLAN70,001$12.00$840K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOMar 30F20,875$37.50$783K
MIAMI INTERNATIONAL HOLDINGS, INC.MIAXThomas P. GallagherCEOFeb 10F50,100$41.33$2.1M