Gallagher Thomas P.

CIK 00020804771 companyPRINCETON, NJ

SEC Profile

Transactions

Companies

Filings

CIK

0002080477

Recent Transactions

50 trades

Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Incentive Stock Option (Right to Buy)
2026-09-03−4,464→ 8,928 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Incentive Stock Option (Right to Buy)
2026-09-03−13,140→ 0 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Incentive Stock Option (Right to Buy)
2026-09-03−8,333→ 0 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Incentive Stock Option (Right to Buy)
2026-09-03−16,666→ 0 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-09-03−47,000→ 188,000 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-09-03$22.40/sh+4,464→ 786,542 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-09-03$15.22/sh+13,140→ 782,078 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-09-03$12.00/sh+8,333→ 768,938 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-09-03$12.00/sh+16,666→ 760,605 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-09-03$42.43/sh−47,000→ 1,423,275 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-09-03$12.00/sh+47,000→ 1,470,275 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-08-19$41.13/sh−149,700→ 1,423,275 total
Tax Payment
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-08-18$42.41/sh−150,300→ 1,572,975 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-08-04$45.69/sh−48,334→ 1,723,275 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-08-04$12.00/sh+48,334→ 1,771,609 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-08-04−48,334→ 235,000 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-07-13−70,000→ 0 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-07-13$12.00/sh+70,000→ 1,793,275 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-07-13$42.52/sh−70,000→ 1,723,275 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-07-07−28,228→ 70,000 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-07-07$12.00/sh+28,228→ 1,751,503 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-07-07$42.27/sh−28,228→ 1,723,275 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-07-06$42.09/sh−41,772→ 1,723,275 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-07-06−41,772→ 98,228 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-07-06$12.00/sh+41,772→ 1,765,047 total
Award
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Incentive Stock Option (Right to Buy)
2026-06-16+2,485→ 2,485 total
Award
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-06-16+237,175→ 237,175 total
Award
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-06-16+232,977→ 743,939 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-06-02$42.36/sh−70,000→ 1,723,275 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-06-02−70,000→ 140,000 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-06-02$12.00/sh+70,000→ 1,793,275 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Incentive Stock Option (Right to Buy)
2026-05-11−24,999→ 0 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-05-11$12.00/sh+24,999→ 510,962 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-05-05$12.00/sh+15,771→ 1,739,046 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-05-05$47.92/sh−15,771→ 1,723,275 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-05-05−15,771→ 210,000 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-05-04$12.00/sh+54,229→ 1,777,504 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-05-04−54,229→ 225,771 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-05-04$47.26/sh−54,229→ 1,723,275 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-04-15$43.68/sh−49,900→ 485,963 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2026-04-15−70,001→ 280,000 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-04-15$43.36/sh−70,001→ 1,827,399 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-04-15$12.00/sh+70,001→ 1,897,400 total
Sale
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-04-15$43.36/sh−104,124→ 1,723,275 total
Tax Payment
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-03-30$37.50/sh−20,875→ 1,827,399 total
Tax Payment
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2026-02-10$41.33/sh−50,100→ 535,863 total
Gift
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2025-12-23−2,000→ 585,963 total
Tax Payment
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Common Stock
2025-08-26$33.90/sh−192,220→ 1,848,274 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2025-08-15−375,000→ 0 total
Exercise/Conversion
MIAMI INTERNATIONAL HOLDINGS, INC.$MIAX
Nonqualified Stock Option (Right to Buy)
2025-08-15+286,860→ 286,860 total

Companies

MIAMI INTERNATIONAL HOLDINGS, INC.
Director, Chairman & CEO
$MIAX

Recent Filings

Address

C/O MIAMI INTERNATIONAL HOLDINGS, INC 7 ROSZEL ROAD, SUITE 1A

PRINCETON, NJ, 08540

View on SEC.gov