Kurt M. Eckert - 15 Jun 2026 Form 4 Insider Report for MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX)

Reporting relationship: Director
Issuer ticker: MIAX
Reported as of: 15 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 17 Jun 2026, 16:19:53 UTC
Prior SEC filing: 04 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/Alessandra Maria Corona Henriques, Attorney-in-Fact

Key filing fact

Kurt M. Eckert filed Form 4 for MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) on 17 Jun 2026.

Key facts

This page summarizes Kurt M. Eckert's Form 4 filing for MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 17 Jun 2026, 16:19.

Change

Previous filing in this sequence was filed on 04 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002080678 Primary reporting owner

Eckert Kurt M.

Relationship: Director
Address: C/O MIAMI INTERNATIONAL HOLDINGS, INC., 7 ROSZEL ROAD, SUITE 1A, PRINCETON
Signature: /s/Alessandra Maria Corona Henriques, Attorney-in-Fact
Signature date: 17 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MIAX transaction

Common Stock

Award

Transaction value
Shares: +2,267
Change %: +1.6%
Price: $0.000000^*
Shares after: 144,642
Date: 15 Jun 2026
Ownership: Direct
Footnotes: F1

MIAX transaction

Common Stock

Award

Transaction value
Shares: +4,970
Change %: +3.4%
Price: $0.000000^*
Shares after: 149,612
Date: 16 Jun 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MIAX transaction Derivative

Nonqualified Stock Option (Right to Buy)

Award

Transaction value
Shares: +7,713
Change %
Price: $0.000000^*
Shares after: 7,713
Date: 16 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 7,713
Exercise price: $40.24
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

The amount represents restricted stock units ("RSUs") that fully vested on the date of grant. Each RSU represents a right to receive one share of the Issuer's common stock.

Footnote F2

The amount represents RSUs that vest on the last business day immediately preceding the 2027 annual meeting of stockholders, subject to the reporting person's continued service to the Issuer through the vesting date.

Footnote F3

3,856 of the shares subject to this option will vest on June 30, 2026, 1,929 of the shares subject to this option will vest on September 30, 2026 and the remaining 1,928 of the shares subject to this option will vest on December 31, 2026, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date.