MIAX director awarded shares, exercises options

MIAMI INTERNATIONAL HOLDINGS, INC. director Raymond Mark F. reported equity compensation transactions that increased his direct stake in the company.

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

How Sentiment works How the balance works

Form Type

Rhea-AI Filing Summary

MIAMI INTERNATIONAL HOLDINGS, INC. director Raymond Mark F. reported equity compensation transactions that increased his direct stake in the company. He now directly holds 67,064 shares of common stock.

On June 15, 2026, he received 2,267 restricted stock units that will vest on the last business day immediately preceding the 2027 annual meeting of stockholders, contingent on continued service. On June 16, 2026, he received 4,970 RSUs that fully vested on the grant date and exercised stock options for 16,000 shares of common stock at an exercise price of $12.00 per share, exhausting that option grant.

Insider Trade Summary

16,000 shares exercised/converted

Exercise 4 txns

Insider Raymond Mark F.

Role Director

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy)	16,000	$0.00	$0.00
Exercise	Common Stock	16,000	$12.00	$192K
Grant/Award	Common Stock	4,970	$0.00	$0.00
Grant/Award	Common Stock	2,267	$0.00	$0.00

Holdings After Transaction: Stock Option (Right to Buy) — 0 contracts (Direct); Common Stock — 67,064 shares (Direct)

Footnotes (3)

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.
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.
F3. The options are fully vested.

Key Figures

Post-transaction holdings: 67,064 shares RSUs vested on grant: 4,970 shares RSUs vesting before 2027 meeting: 2,267 shares +3 more

6 metrics

Post-transaction holdings 67,064 shares Common stock held directly after reported transactions

RSUs vested on grant 4,970 shares RSUs granted and fully vested on June 16, 2026

RSUs vesting before 2027 meeting 2,267 shares RSUs vesting immediately before 2027 annual meeting, service-based

Options exercised 16,000 shares Stock options converted to common stock on June 16, 2026

Option exercise price $12.00 per share Strike price for exercised stock options

Option expiration June 19, 2026 Expiration date of exercised stock option grant

Key Terms

restricted stock units ("RSUs"), Stock Option (Right to Buy), annual meeting of stockholders, Exercise or conversion of derivative security

4 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.

Stock Option (Right to Buy) financial

"security_title": "Stock Option (Right to Buy)""

annual meeting of stockholders regulatory

"RSUs that vest on the last business day immediately preceding the 2027 annual meeting of stockholders"

Exercise or conversion of derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did MIAX director Raymond Mark F. report?

He reported equity awards and an option exercise that increased his holdings. Grants included restricted stock units and the exercise of stock options, all classified as acquisitions rather than open-market purchases or sales, reflecting routine compensation-related activity disclosed for transparency.

How many MIAX shares does Raymond Mark F. hold after these Form 4 transactions?

Following the reported transactions, he directly holds 67,064 shares of MIAX common stock. This figure reflects the combined impact of newly vested restricted stock units and shares acquired through option exercise, as disclosed in the post-transaction ownership totals.

What stock option transaction did the MIAX Form 4 disclose for Raymond Mark F.?

He exercised stock options covering 16,000 shares of MIAX common stock at an exercise price of $12.00 per share. The related derivative line shows the option position reduced to zero, indicating this particular option grant is now fully exercised and no longer outstanding.

What restricted stock units were granted to the MIAX director on June 15 and 16, 2026?

He received 2,267 restricted stock units on June 15, 2026, vesting immediately before the 2027 annual meeting, subject to continued service, and 4,970 RSUs on June 16, 2026 that fully vested on the grant date, each RSU converting into one share of common stock.

Were there any open-market buys or sells by the MIAX director in this Form 4?

No open-market purchases or sales were reported. All transactions were coded as awards (A) or option exercises (M), representing equity compensation and derivative conversion events, without any P or S codes that would indicate market buys or sells of MIAX shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google

Accepted by SEC EDGAR 06/17/2026 - 04:29 PM EDT

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^*

Raymond Mark F.

(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	46,094	D
Common Stock	06/16/2026		M		16,000	A	$12	62,094	D
Common Stock	06/16/2026		A		4,970⁽²⁾	A	$0	67,064	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)
Stock Option (Right to Buy)	$12	06/16/2026		M			16,000	⁽³⁾	06/19/2026	Common Stock	16,000	$0	0	D

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.

3. The options are fully vested.

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