Gallagher Thomas P. 4
4 · MIAMI INTERNATIONAL HOLDINGS, INC. · Filed Jun 18, 2026
Research Summary
AI-generated summary of this filing
MIAX CEO Thomas P. Gallagher Receives 472,637-Share Equity Awards
What Happened Thomas P. Gallagher, Chairman & CEO (and Director) of Miami International Holdings, Inc. (MIAX), was granted equity awards on June 16, 2026 totaling 472,637 shares. The Form 4 reports: 232,977 RSUs granted at $0.00, plus two derivative awards of 2,485 shares and 237,175 shares (both reported as acquisitions at $0.00). These are awards/grants (transaction code A) — not purchases or sales — and the filing reports $0 acquisition price because these are compensation awards and option/RSU grants.
Key Details
- Transaction date: June 16, 2026; Form 4 filed June 18, 2026. Reported acquisition price: $0.00 for all entries.
- Total shares granted: 472,637 (232,977 RSUs + 2,485 derivative + 237,175 derivative).
- Vesting schedules (from filing footnotes):
- RSUs (232,977): vest in three equal annual installments of 77,659 on June 16 of 2027, 2028 and 2029, subject to continued service.
- 2,485-share derivative: 829 vests 6/16/2027, 828 vests 6/16/2028, 828 vests 6/16/2029.
- 237,175-share derivative: 79,059 vests 6/16/2027, 79,058 vests 6/16/2028, 79,058 vests 6/16/2029.
- Shares owned after the transaction are not specified in the provided summary of the filing.
- No indication of a 10b5-1 plan, tax withholding sale, or late filing flag in the provided information; the Form 4 was filed two days after the grant date (within the typical two-business-day reporting window).
Context These entries reflect compensation/retention awards (RSUs and equity-based derivative awards) that vest over three years. They are not cash purchases or exercises followed by sales, so they do not represent an immediate market buy or sell signal. Such grants are common for executive compensation and typically tied to continued service and/or performance conditions.
Insider Transaction Report
- Award
Common Stock
[F1]2026-06-16+232,977→ 743,939 total - Award
Incentive Stock Option (Right to Buy)
[F2]2026-06-16+2,485→ 2,485 totalExercise: $40.24Exp: 2036-06-15→ Common Stock (2,485 underlying) - Award
Nonqualified Stock Option (Right to Buy)
[F3]2026-06-16+237,175→ 237,175 totalExercise: $40.24Exp: 2036-06-15→ Common Stock (237,175 underlying)
Footnotes (3)
- [F1]The amount represents restricted stock units ("RSUs") that vest as to 77,659 on June 16, 2027, 77,659 on June 16, 2028 and the remaining 77,659 on June 16, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date.
- [F2]829 of the shares subject to this option will vest on June 16, 2027, 828 of the shares subject to this option will vest on June 16, 2028 and the remaining 828 of the shares subject to this option will vest on June 16, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date.
- [F3]79,059 of the shares subject to this option will vest on June 16, 2027, 79,058 of the shares subject to this option will vest on June 16, 2028 and the remaining 79,058 of the shares subject to this option will vest on June 16, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date.