STOCK TITAN

MIAMI INTERNATIONAL (MIAX) EVP receives RSUs and long-dated options

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

MIAMI INTERNATIONAL HOLDINGS, INC. executive Edward Deitzel reported equity awards in the form of restricted stock units and stock options. He received 9,319 RSUs that vest in three installments on June 16, 2027, June 16, 2028, and June 16, 2029, subject to continued service. He also was granted 7,101 nonqualified stock options and 2,485 incentive stock options, each with a $40.24 exercise price and expiring on June 15, 2036. Following these awards, he directly holds 119,601 shares of common stock. All transactions are compensation-related grants, not open-market purchases or sales.

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Insider Deitzel Edward
Role EVP, CRO, CCO MIAX Exchanges
Type Security Shares Price Value
Grant/Award Incentive Stock Option (Right to Buy) 2,485 $0.00 --
Grant/Award Nonqualified Stock Option (Right to Buy) 7,101 $0.00 --
Grant/Award Common Stock 9,319 $0.00 --
Holdings After Transaction: Incentive Stock Option (Right to Buy) — 2,485 shares (Direct); Nonqualified Stock Option (Right to Buy) — 7,101 shares (Direct); Common Stock — 119,601 shares (Direct)
Footnotes (1)
  1. The amount represents restricted stock units ("RSUs") that vest as to 3,107 on June 16, 2027, 3,106 on June 16, 2028 and the remaining 3,106 on June 16, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date. 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. 2,367 of the shares subject to this option will vest on June 16, 2027, 2,367 of the shares subject to this option will vest on June 16, 2028 and the remaining 2,367 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.
RSU grant 9,319 RSUs Awarded to Edward Deitzel on June 16, 2026
RSU vesting 2027 3,107 RSUs Vest on June 16, 2027, subject to continued service
Nonqualified options 7,101 options at $40.24 Nonqualified stock options, expire June 15, 2036
Incentive options 2,485 options at $40.24 Incentive stock options, expire June 15, 2036
Common shares held 119,601 shares Common stock directly held after grants
Option vesting 2027 (grant 1) 829 shares Portion of one option grant vesting June 16, 2027
Option vesting 2027 (grant 2) 2,367 shares Portion of another option grant vesting June 16, 2027
restricted stock units ("RSUs") financial
"The amount represents restricted stock units ("RSUs") that vest as to 3,107 on June 16, 2027..."
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
Nonqualified Stock Option financial
"Nonqualified Stock Option (Right to Buy)... conversion or exercise price 40.2400..."
Incentive Stock Option financial
"Incentive Stock Option (Right to Buy)... conversion or exercise price 40.2400..."
An incentive stock option is a type of employee benefit that gives a worker the right to buy company shares at a fixed price, with special tax advantages if the employee holds the shares for a required period. Think of it as a coupon to buy future shares at today’s price that can result in lower tax on the gain. Investors care because ISOs can dilute share count, align staff incentives with the stock price, and affect company compensation costs and the timing of potential share sales.
exercise price financial
"conversion or exercise price: 40.2400"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
vesting date financial
"subject to the Reporting Person's continued service... through the applicable vesting date."

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FAQ

What equity awards did MIAX executive Edward Deitzel receive?

Edward Deitzel received 9,319 restricted stock units and two stock option grants. The options cover 7,101 and 2,485 shares of MIAX common stock at a $40.24 exercise price, expiring on June 15, 2036, as part of his compensation.

How do the new MIAX RSUs for Edward Deitzel vest?

The 9,319 MIAX RSUs vest in three annual tranches. 3,107 vest on June 16, 2027, 3,106 on June 16, 2028, and 3,106 on June 16, 2029, conditioned on Deitzel’s continued service with MIAX or its subsidiaries.

What are the terms of Edward Deitzel’s MIAX stock options?

Deitzel received nonqualified and incentive stock options over 7,101 and 2,485 MIAX shares. Both series have a $40.24 exercise price and expire on June 15, 2036, with vesting in specified annual installments contingent on continued service.

Did Edward Deitzel buy or sell MIAX shares on the market?

The Form 4 shows only compensation-related grants for Edward Deitzel at MIAX. He received RSUs and stock options at no cash cost per share, with no open-market purchases or sales reported in this filing.

How many MIAX common shares does Edward Deitzel now hold?

After the reported grants, Edward Deitzel directly holds 119,601 shares of MIAX common stock. This figure reflects his post-transaction position as disclosed, alongside the new RSU and option awards that may add shares as they vest or are exercised.

When do Edward Deitzel’s MIAX stock options start vesting?

The MIAX Form 4 footnotes show the options vest in annual tranches. One grant vests portions such as 829 and 828 shares in 2027 and 2028, and another vests 2,367 shares each in 2027, 2028, and 2029, subject to continued service.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Deitzel Edward

(Last)(First)(Middle)
C/O MIAMI INTERNATIONAL HOLDINGS, INC.
7 ROSZEL ROAD, SUITE 1A

(Street)
PRINCETON NEW JERSEY 08540

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
MIAMI INTERNATIONAL HOLDINGS, INC. [ MIAX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP, CRO, CCO MIAX Exchanges
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock06/16/2026A9,319(1)A$0119,601D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Incentive Stock Option (Right to Buy)$40.2406/16/2026A2,485 (2)06/15/2036Common Stock2,485$02,485D
Nonqualified Stock Option (Right to Buy)$40.2406/16/2026A7,101 (3)06/15/2036Common Stock7,101$07,101D
Explanation of Responses:
1. The amount represents restricted stock units ("RSUs") that vest as to 3,107 on June 16, 2027, 3,106 on June 16, 2028 and the remaining 3,106 on June 16, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date.
2. 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.
3. 2,367 of the shares subject to this option will vest on June 16, 2027, 2,367 of the shares subject to this option will vest on June 16, 2028 and the remaining 2,367 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.
Remarks:
/s/Alessandra Maria Corona Henriques, Attorney-in-Fact06/18/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)