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Eckert Kurt M.

Disclosed activity across 1 company

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25945
SEC CIK
0002080678

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MIAMI INTERNATIONAL HOLDINGS, INC.MIAX · Entity 4026DirectorAugust 04, 2026August 06, 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 04, 2026 · Filed August 06, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect149,612 Ending reported balance After 2026-08-04 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2026-08-04 · Exercise / conversion · Acquired 1,063 · Balance 150,675

F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

Row 2 · 2026-08-04 · Sale · Disposed 1,063 · Balance 149,612

F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F2: This transaction was executed in multiple trades throughout the day at prices ranging from $45.14 to $46.57. 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.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $12.00 · Expires 2027-05-31Direct0 Reported balance After 2026-08-04 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-08-04 · Exercise / conversion · Disposed 1,063 · Balance 0

F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F3: The options are fully vested

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 18, 2025.

F2: This transaction was executed in multiple trades throughout the day at prices ranging from $45.14 to $46.57. 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.

F3: The options are fully vested

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 04, 2026 Filed Aug 6, 2026 20:11 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 1,063 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080678-26-000008 · wk-form4_1786047114.xml · derivative · entry 3

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,063 shares

Expires 2027-05-31

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 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:11 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 1,063 $45.80 $48,685.40
Disclosure

SEC source: 0002080678-26-000008 · wk-form4_1786047114.xml · nonDerivative · entry 2

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 149,612

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $45.14 to $46.57. 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
August 04, 2026 Filed Aug 6, 2026 20:11 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 1,063 $12.00 $12,756.00
Disclosure

SEC source: 0002080678-26-000008 · wk-form4_1786047114.xml · nonDerivative · entry 1

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 150,675

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 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

Read SEC document
July 02, 2026 Filed Jul 7, 2026 20:08 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 5,250 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047488 · wk-form4_1783454926.xml · derivative · entry 3

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,063

Underlying: Common Stock · 5,250 shares

Expires 2027-05-31

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 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F2 · derivative.exercise_date: The options are fully vested

Read SEC document
July 02, 2026 Filed Jul 7, 2026 20:08 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 5,250 $39.35 $206,587.50
Disclosure

SEC source: 0001628280-26-047488 · wk-form4_1783454926.xml · nonDerivative · entry 2

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 149,612

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

Read SEC document
July 02, 2026 Filed Jul 7, 2026 20:08 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 5,250 $12.00 $63,000.00
Disclosure

SEC source: 0001628280-26-047488 · wk-form4_1783454926.xml · nonDerivative · entry 1

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 154,862

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 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

Read SEC document
June 16, 2026 Filed Jun 17, 2026 20:19 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 GrantNonqualified Stock Option (Right to Buy) · Derivative 7,713 $0.00 Strike: $40.24 $0.00
Disclosure

SEC source: 0002080678-26-000006 · wk-form4_1781727590.xml · derivative · entry 3

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,713

Underlying: Common Stock · 7,713 shares

Expires 2036-06-15

F3 · derivative.exercise_date: 3,856 of the shares subject to this option will vest on June 30, 2026, 1,929 of the shares subject to this option will vest on September 30, 2026 and the remaining 1,928 of the shares subject to this option will vest on December 31, 2026, 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 17, 2026 20:19 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 GrantCommon Stock 4,970 $0.00 $0.00
Disclosure

SEC source: 0002080678-26-000006 · wk-form4_1781727590.xml · nonDerivative · entry 2

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 149,612

F2 · shares: 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.

Read SEC document
June 15, 2026 Filed Jun 17, 2026 20:19 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 GrantCommon Stock 2,267 $0.00 $0.00
Disclosure

SEC source: 0002080678-26-000006 · wk-form4_1781727590.xml · nonDerivative · entry 1

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,642

F1 · shares: 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.

Read SEC document
June 02, 2026 Filed Jun 4, 2026 20:52 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 5,250 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080678-26-000004 · wk-form4_1780606343.xml · derivative · entry 3

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,313

Underlying: Common Stock · 5,250 shares

Expires 2027-05-31

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 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
June 02, 2026 Filed Jun 4, 2026 20:52 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 5,250 $42.76 $224,490.00
Disclosure

SEC source: 0002080678-26-000004 · wk-form4_1780606343.xml · nonDerivative · entry 2

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 142,375

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $41.46 to $43.99. The price reported above reflects the weighted 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
June 02, 2026 Filed Jun 4, 2026 20:52 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 5,250 $12.00 $63,000.00
Disclosure

SEC source: 0002080678-26-000004 · wk-form4_1780606343.xml · nonDerivative · entry 1

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 147,625

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 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

Read SEC document
May 04, 2026 Filed May 5, 2026 11:31 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 5,625 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080678-26-000002 · wk-form4_1777980684.xml · derivative · entry 3

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,563

Underlying: Common Stock · 5,625 shares

Expires 2027-05-31

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 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
May 04, 2026 Filed May 5, 2026 11:31 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 5,625 $47.29 $266,006.25
Disclosure

SEC source: 0002080678-26-000002 · wk-form4_1777980684.xml · nonDerivative · entry 2

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 142,375

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $47.09 to $47.53. The price reported above reflects the weighted 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
May 04, 2026 Filed May 5, 2026 11:31 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 5,625 $12.00 $67,500.00
Disclosure

SEC source: 0002080678-26-000002 · wk-form4_1777980684.xml · nonDerivative · entry 1

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 148,000

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 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 20:48 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 12,917 $12.00 Strike: $12.00 $155,004.00
Disclosure

SEC source: 0001628280-26-020218 · wk-form4_1774039706.xml · derivative · entry 3

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,917 shares

Expires 2026-06-19

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_date: The options are fully vested.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 20:48 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 37,917 $39.00 $1,478,763.00
Disclosure

SEC source: 0001628280-26-020218 · wk-form4_1774039706.xml · nonDerivative · entry 2

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 142,375

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 18, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $38.62 to $39.48. The price reported above reflects the weighted 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 19, 2026 Filed Mar 20, 2026 20:48 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 12,917 $12.00 $155,004.00
Disclosure

SEC source: 0001628280-26-020218 · wk-form4_1774039706.xml · nonDerivative · entry 1

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 180,292

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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 22,223 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 16

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,223

Underlying: Common Stock · 22,223 shares

Expires 2031-05-31

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_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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 22,223 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 15

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 22,223 shares

Expires 2031-05-31

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_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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 30,156 $0.00 Strike: $14.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 14

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,156

Underlying: Common Stock · 30,156 shares

Expires 2030-06-30

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.

F2 · 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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 30,156 $0.00 Strike: $14.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 13

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 30,156 shares

Expires 2030-06-30

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.

F2 · 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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 125 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 12

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125

Underlying: Common Stock · 125 shares

Expires 2029-06-30

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.

F2 · 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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 125 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 11

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 125 shares

Expires 2029-06-30

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.

F2 · 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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 22,812 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 10

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,812

Underlying: Common Stock · 22,812 shares

Expires 2029-05-31

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_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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 22,812 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 9

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 22,812 shares

Expires 2029-05-31

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_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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 18,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 8

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,000

Underlying: Common Stock · 18,000 shares

Expires 2028-04-30

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.

F2 · 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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

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August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 18,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 7

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 18,000 shares

Expires 2028-04-30

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.

F2 · 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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

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August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 17,188 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 6

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,188

Underlying: Common Stock · 17,188 shares

Expires 2027-05-31

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_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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

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August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 17,188 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 5

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 17,188 shares

Expires 2027-05-31

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_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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

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August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 12,917 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 4

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,917

Underlying: Common Stock · 12,917 shares

Expires 2026-06-19

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_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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionStock Option (Right to Buy) · Derivative 12,917 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 3

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 12,917 shares

Expires 2026-06-19

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_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.

F2 · 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.

F3 · derivative.exercise_date: The options are fully vested

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 ConversionNonvoting Common Stock · Derivative 46,875 $0.00 $0.00
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · derivative · entry 2

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 46,875 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 46,875 shares of Nonvoting Common 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. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship

F1 · shares: Includes 46,875 shares of Nonvoting Common 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. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship

F1 · derivative.exercise_date: Includes 46,875 shares of Nonvoting Common 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. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship

F1 · derivative.expiration_date: Includes 46,875 shares of Nonvoting Common 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. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship

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August 15, 2025 Filed Aug 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 ConversionCommon Stock 46,875 Not disclosed Not disclosed
Disclosure

SEC source: 0001628280-25-040786 · wk-form4_1755633964.xml · nonDerivative · entry 1

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,375

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 46,875 shares of Nonvoting Common 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. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship

F1 · price: Includes 46,875 shares of Nonvoting Common 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. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship

F1 · balance_after: Includes 46,875 shares of Nonvoting Common 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. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship

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