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Emmons Lance

Disclosed activity across 1 company

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21758
SEC CIK
0002080679

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Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MIAMI INTERNATIONAL HOLDINGS, INC.MIAX · Entity 4026EVP and CFOAugust 17, 2026August 19, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

MIAMI INTERNATIONAL HOLDINGS, INC.

Report date August 17, 2026 · Filed August 19, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect86,538 Reported balance After 2026-08-17 transaction · row 1
1 source row

Row 1 · 2026-08-17 · Sale · Disposed 35,000 · Balance 86,538

F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 17, 2025.

F2: This transaction was executed in multiple trades throughout the day at prices ranging from $42.23 to $43.54. 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.

Filing footnotes · ownership attribution and instrument terms

F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 17, 2025.

F2: This transaction was executed in multiple trades throughout the day at prices ranging from $42.23 to $43.54. 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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 17, 2026 Filed Aug 19, 2026 20:10 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 35,000 $42.83 $1,499,050.00
Disclosure

SEC source: 0001628280-26-057946 · wk-form4_1787170215.xml · nonDerivative · entry 1

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 86,538

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 17, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.23 to $43.54. 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.

Read SEC document
June 16, 2026 Filed Jun 18, 2026 20:21 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 GrantNonqualified Stock Option (Right to Buy) · Derivative 35,861 $0.00 Strike: $40.24 $0.00
Disclosure

SEC source: 0002080679-26-000006 · wk-form4_1781814079.xml · derivative · entry 3

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,861

Underlying: Common Stock · 35,861 shares

Expires 2036-06-15

F3 · derivative.exercise_date: 11,955 of the shares subject to this option will vest on June 16, 2027, 11,953 of the shares subject to this option will vest on June 16, 2028 and the remaining 11,953 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.

Read SEC document
June 16, 2026 Filed Jun 18, 2026 20:21 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 GrantIncentive Stock Option (Right to Buy) · Derivative 2,485 $0.00 Strike: $40.24 $0.00
Disclosure

SEC source: 0002080679-26-000006 · wk-form4_1781814079.xml · derivative · entry 2

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,485

Underlying: Common Stock · 2,485 shares

Expires 2036-06-15

F2 · derivative.exercise_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.

Read SEC document
June 16, 2026 Filed Jun 18, 2026 20:21 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 GrantCommon Stock 37,276 $0.00 $0.00
Disclosure

SEC source: 0002080679-26-000006 · wk-form4_1781814079.xml · nonDerivative · entry 1

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,538

F1 · shares: The amount represents restricted stock units ("RSUs") that vest as to 12,426 on June 16, 2027, 12,425 on June 16, 2028 and the remaining 12,425 on June 16, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date.

Read SEC document
May 15, 2026 Filed May 18, 2026 20:52 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 35,000 $56.36 $1,972,600.00
Disclosure

SEC source: 0002080679-26-000004 · wk-form4_1779137565.xml · nonDerivative · entry 1

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 84,262

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 17, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $55.19 to $57.02. The price reported above reflects the average sale 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.

Read SEC document
March 30, 2026 Filed Apr 1, 2026 20:42 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Tax withholdingCommon Stock 8,350 $37.50 $313,125.00
Disclosure

SEC source: 0002080679-26-000002 · wk-form4_1775076130.xml · nonDerivative · entry 1

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 119,262

F1 · shares: Represents shares that have been surrendered to the Company to satisfy tax withholding and remittance obligations in connection with the net settlement of restricted stock awards and does not represent a sale by the reporting person.

Read SEC document
December 16, 2025 Filed Dec 17, 2025 21:22 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 5,040 $0.00 Strike: $19.84 $0.00
Disclosure

SEC source: 0002080679-25-000002 · wk-form4_1766006549.xml · derivative · entry 6

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,040

Underlying: Common Stock · 5,040 shares

Expires 2033-03-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: 5,040 of the shares subject to this incentive stock option are vested and the remaining 5,040 will vest on March 29, 2026 subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date.

Read SEC document
December 16, 2025 Filed Dec 17, 2025 21:22 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 6,195 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0002080679-25-000002 · wk-form4_1766006549.xml · derivative · entry 5

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,195 shares

Expires 2031-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The options are fully vested.

Read SEC document
December 16, 2025 Filed Dec 17, 2025 21:22 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 22,221 $0.00 Strike: $13.50 $0.00
Disclosure

SEC source: 0002080679-25-000002 · wk-form4_1766006549.xml · derivative · entry 4

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 22,221 shares

Expires 2030-03-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The options are fully vested.

Read SEC document
December 16, 2025 Filed Dec 17, 2025 21:22 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 5,040 $19.84 $99,993.60
Disclosure

SEC source: 0002080679-25-000002 · wk-form4_1766006549.xml · nonDerivative · entry 3

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,612

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 16, 2025 Filed Dec 17, 2025 21:22 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 6,195 $16.14 $99,987.30
Disclosure

SEC source: 0002080679-25-000002 · wk-form4_1766006549.xml · nonDerivative · entry 2

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 122,572

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 16, 2025 Filed Dec 17, 2025 21:22 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 22,221 $13.50 $299,983.50
Disclosure

SEC source: 0002080679-25-000002 · wk-form4_1766006549.xml · nonDerivative · entry 1

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,377

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 68,804 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 13

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,804

Underlying: Common Stock · 68,804 shares

Expires 2031-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 68,804 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 12

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 68,804 shares

Expires 2031-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 125,000 $0.00 Strike: $15.22 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 11

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,000

Underlying: Common Stock · 125,000 shares

Expires 2030-11-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 125,000 $0.00 Strike: $15.22 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 10

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 125,000 shares

Expires 2030-11-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 102,779 $0.00 Strike: $13.50 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 9

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,779

Underlying: Common Stock · 102,779 shares

Expires 2030-03-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 102,779 $0.00 Strike: $13.50 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 8

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 102,779 shares

Expires 2030-03-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 6,195 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 7

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,195

Underlying: Common Stock · 6,195 shares

Expires 2031-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 6,195 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 6

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 6,195 shares

Expires 2031-09-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 22,221 $0.00 Strike: $13.50 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 5

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,221

Underlying: Common Stock · 22,221 shares

Expires 2030-03-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 22,221 $0.00 Strike: $13.50 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 4

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 22,221 shares

Expires 2030-03-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions.

F4 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 ConversionSeries B Preferred Stock · Derivative 57,646 $0.00 $0.00
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · derivative · entry 3

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 57,646 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Includes 57,646 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date.

F1 · shares: Includes 57,646 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date.

F1 · derivative.exercise_date: Includes 57,646 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date.

F1 · derivative.expiration_date: Includes 57,646 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date.

Read SEC document
August 15, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 ConversionCommon Stock 57,646 Not disclosed Not disclosed
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · nonDerivative · entry 1

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,156

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Includes 57,646 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date.

F1 · price: Includes 57,646 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date.

Read SEC document
August 14, 2025 Filed Aug 18, 2025 20:05 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 PurchaseCommon Stock 4 $31.44 $125.76
Disclosure

SEC source: 0001628280-25-040653 · wk-form4_1755547524.xml · nonDerivative · entry 2

Emmons Lance · CIK 0002080679 · EVP and CFO

10b5-1 filing: No plan indicated

Ownership: Indirect · By son

Disclosed balance after: 4

F2 · price: Mr. Emmons disclaims ownership of the shares owned by his son.

F2 · ownership.nature: Mr. Emmons disclaims ownership of the shares owned by his son.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.