At what prices were Edward Deitzel’s MIAX share sales executed?

The sales were executed in multiple trades throughout the day at prices ranging from $42.00 to $45.28 per share. The Form 4 reports a weighted average sales price of $42.16 per share for the 11,000 shares sold.

MIAMI INTERNATIONAL (MIAX) EVP sells 11,000 shares in 10b5-1 trade

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

MIAMI INTERNATIONAL HOLDINGS, INC. executive Edward Deitzel reported an exercise-and-sell transaction in company stock. On June 2, 2026, he exercised 11,000 nonqualified stock options at $12.00 per share and sold 11,000 common shares in open-market trades at a weighted average price of $42.16 per share. The sale was carried out under a previously established Rule 10b5-1 trading plan, indicating it was pre-planned. After these transactions, Deitzel directly holds 116,221 common shares, and the option award has 7,333 options remaining outstanding, which are fully vested and expire on May 17, 2028.

Insider Trade Summary 10b5-1

Net Seller: 11,000 shares ($463,760)

Net Sell 3 txns

Insider Deitzel Edward

Role EVP, CRO, CCO MIAX Exchanges

Sold 11,000 shs ($464K)

Type	Security	Shares	Price	Value
Exercise	Nonqualified Stock Option (Right to Buy)	11,000	$0.00	--
Exercise	Common Stock	11,000	$12.00	$132K
Sale	Common Stock	11,000	$42.16	$464K

Holdings After Transaction: Nonqualified Stock Option (Right to Buy) — 7,333 shares (Direct, null); Common Stock — 127,221 shares (Direct, null)

Footnotes (1)

This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 30, 2025. This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $45.28. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. The options are fully vested.

Key Figures

Shares sold: 11,000 shares Sale price (weighted average): $42.16 per share Option exercise price: $12.00 per share +5 more

8 metrics

Shares sold 11,000 shares Common Stock sold in open-market transaction on June 2, 2026

Sale price (weighted average) $42.16 per share Weighted average price for 11,000 shares sold

Option exercise price $12.00 per share Exercise price for 11,000 nonqualified stock options

Shares acquired via exercise 11,000 shares Common Stock acquired through option exercise on June 2, 2026

Shares held after transactions 116,221 shares Directly owned common shares following June 2, 2026 transactions

Remaining options 7,333 options Nonqualified stock options remaining outstanding after exercise

Option expiration date May 17, 2028 Expiration date of the nonqualified stock option award

10b5-1 plan adoption date December 30, 2025 Date the Rule 10b5-1 trading plan was adopted

Key Terms

Rule 10b5-1 Plan, Nonqualified Stock Option, weighted average sales price, expiration date

4 terms

Rule 10b5-1 Plan regulatory

"This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 30, 2025."

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

Nonqualified Stock Option financial

"Nonqualified Stock Option (Right to Buy) with an exercise price of $12.0000 per share."

weighted average sales price financial

"The price reported above reflects the weighted average sales price."

expiration date financial

"The options are fully vested with an expiration date of May 17, 2028."

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

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

Add on Google

Form 4 Insider Transactions: What Each Field Means →

06/04/2026 - 04:44 PM

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^*

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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP, CRO, CCO MIAX Exchanges

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/02/2026

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	06/02/2026		M⁽¹⁾		11,000	A	$12	127,221	D
Common Stock	06/02/2026		S⁽¹⁾		11,000	D	$42.16⁽²⁾	116,221	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)
Nonqualified Stock Option (Right to Buy)	$12	06/02/2026		M⁽¹⁾			11,000	⁽³⁾	05/17/2028	Common Stock	11,000	$0	7,333	D

Explanation of Responses:

1. This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 30, 2025.

2. This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $45.28. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

3. The options are fully vested.

Remarks:

	/s/Alessandra Maria Corona Henriques, Attorney-in-Fact	06/04/2026
	** 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

FAQ

What insider transactions did MIAX executive Edward Deitzel report?

Edward Deitzel reported exercising 11,000 stock options at $12.00 and selling 11,000 MIAMI INTERNATIONAL HOLDINGS common shares at a weighted average price of $42.16 on June 2, 2026, in an open-market transaction.

Was the MIAX insider stock sale by Edward Deitzel pre-planned under Rule 10b5-1?

Yes. The filing states the transaction was effected under a previously established Rule 10b5-1 trading plan adopted on December 30, 2025, meaning the timing of the 11,000-share sale was pre-scheduled rather than decided spontaneously.

How many MIAX shares does Edward Deitzel hold after the reported transactions?

Following the June 2, 2026 transactions, Edward Deitzel directly owns 116,221 shares of MIAMI INTERNATIONAL HOLDINGS common stock. This figure reflects his position after exercising 11,000 options and selling 11,000 shares in the open market.

What stock options did Edward Deitzel exercise in the MIAX Form 4 filing?

Deitzel exercised 11,000 nonqualified stock options with a conversion or exercise price of $12.00 per share. These options relate to MIAMI INTERNATIONAL HOLDINGS common stock and are part of an award that is fully vested according to the filing footnotes.

How many MIAX stock options remain after Edward Deitzel’s exercise?

After exercising 11,000 options, Deitzel has 7,333 nonqualified stock options remaining from this award. The filing notes these options are fully vested and have an expiration date of May 17, 2028, if not exercised earlier.