Miami International (MIAX) director receives 7,237 RSUs in stock grants

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Beckelman John reported acquisition or exercise transactions in this Form 4 filing.

MIAMI INTERNATIONAL HOLDINGS, INC. director John Beckelman reported two equity awards of common stock. On June 15, 2026, he received 2,267 restricted stock units (RSUs) that will vest on the last business day immediately preceding the 2027 annual meeting of stockholders, subject to his continued service. On June 16, 2026, he received 4,970 RSUs that fully vested on the grant date. Each RSU represents one share of common stock, and following these awards he directly holds 15,904 common shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Beckelman John

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	4,970	$0.00	--
Grant/Award	Common Stock	2,267	$0.00	--

Holdings After Transaction: Common Stock — 15,904 shares (Direct)

Footnotes (1)

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. 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.

Key Figures

RSUs granted (immediate vesting): 4,970 RSUs RSUs granted (deferred vesting): 2,267 RSUs Total RSUs in this Form 4: 7,237 RSUs +1 more

4 metrics

RSUs granted (immediate vesting) 4,970 RSUs Fully vested on June 16, 2026 grant date

RSUs granted (deferred vesting) 2,267 RSUs Vesting before 2027 annual meeting, subject to continued service

Total RSUs in this Form 4 7,237 RSUs Sum of June 15 and June 16, 2026 awards

Shares after June 16 award 15,904 shares Direct common stock holdings following latest RSU grant

Key Terms

restricted stock units ("RSUs"), vest on the last business day immediately preceding the 2027 annual meeting, continued service

3 terms

restricted stock units ("RSUs") financial

"The amount represents restricted stock units ("RSUs") that fully vested on the date of grant."

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.

vest on the last business day immediately preceding the 2027 annual meeting financial

"The amount represents RSUs that vest on the last business day immediately preceding the 2027 annual meeting"

continued service financial

"subject to the reporting person's continued service to the Issuer through the vesting date."

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/17/2026 - 04:25 PM Accepted by SEC EDGAR 06/17/2026 - 04:24 PM

FAQ

What insider transactions did MIAX director John Beckelman report on this Form 4?

Director John Beckelman reported receiving two equity awards in MIAMI INTERNATIONAL HOLDINGS common stock: 2,267 restricted stock units on June 15, 2026 and 4,970 restricted stock units on June 16, 2026, both recorded as compensation-related acquisitions rather than open-market purchases.

How many MIAX RSUs did John Beckelman receive that vested immediately?

Beckelman received 4,970 restricted stock units that fully vested on the June 16, 2026 grant date. According to the filing, each RSU is exchangeable for one share of MIAMI INTERNATIONAL HOLDINGS common stock, making this a fully vested stock award rather than a future-vesting grant.

When do John Beckelman’s other MIAX RSUs from this filing vest?

The additional 2,267 restricted stock units granted to Beckelman on June 15, 2026 vest on the last business day immediately preceding the 2027 annual meeting of stockholders, provided he continues to serve the company through that vesting date, as described in the filing’s footnotes.

How many MIAX common shares does John Beckelman hold after these RSU grants?

After the June 16, 2026 equity award, Beckelman directly holds 15,904 shares of MIAMI INTERNATIONAL HOLDINGS common stock. This total reflects the impact of the reported RSU awards converted into shares, as shown in the post-transaction holdings field of the Form 4.

Are John Beckelman’s MIAX Form 4 transactions open-market buys or compensation grants?

The transactions are compensation-related grants, not open-market buys. Both entries use transaction code “A” and are described as grants or awards of restricted stock units, with no cash price per share reported and vesting conditions outlined in the accompanying Form 4 footnotes.

SEC Form 4

FORM 4

UNITED 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^*

Beckelman John

(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)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/15/2026		A		2,267⁽¹⁾	A	$0	10,934	D
Common Stock	06/16/2026		A		4,970⁽²⁾	A	$0	15,904	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. 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.

2. 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.

Remarks:

	/s/Alessandra Maria Corona Henriques, Attorney-in-Fact	06/17/2026
	** Signature of Reporting Person	Date
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)

Source: View Original Filing on SEC EDGAR