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Jayabalan Harish

Disclosed activity across 1 company

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25944
SEC CIK
0002080538

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MIAMI INTERNATIONAL HOLDINGS, INC.MIAX · Entity 4026EVP, CISO and CROSeptember 25, 2026September 29, 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 September 25, 2026 · Filed September 29, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect86,398 Reported balance After 2026-09-25 transaction · row 1
1 source row

Row 1 · 2026-09-25 · Exercise / conversion · Acquired 8,333 · Balance 86,398

Incentive Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $12.00 · Expires 2027-10-12Direct8,333 Reported balance After 2026-09-25 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-09-25 · Exercise / conversion · Disposed 8,333 · Balance 8,333

F1: The options are fully vested.

Filing footnotes · ownership attribution and instrument terms

F1: 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
September 25, 2026 Filed Sep 29, 2026 20:46 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 8,333 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-063831 · wk-form4_1790714773.xml · derivative · entry 2

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,333

Underlying: Common Stock · 8,333 shares

Expires 2027-10-12

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
September 25, 2026 Filed Sep 29, 2026 20:46 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 8,333 $12.00 $99,996.00
Disclosure

SEC source: 0001628280-26-063831 · wk-form4_1790714773.xml · nonDerivative · entry 1

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,398

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 04, 2026 Filed Aug 6, 2026 20:10 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 5,832 $0.00 Strike: $15.22 $0.00
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · derivative · entry 5

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,598

Underlying: Common Stock · 5,832 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.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:10 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 14,168 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · derivative · entry 4

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,168 shares

Expires 2029-07-31

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 March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:10 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 20,000 $45.90 $918,000.00
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · nonDerivative · entry 3

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,065

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $45.04 to $46.78. 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 20:10 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 5,832 $15.22 $88,763.04
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · nonDerivative · entry 2

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,065

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 March 9, 2026.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:10 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 14,168 $12.00 $170,016.00
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · nonDerivative · entry 1

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 92,233

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 March 9, 2026.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:14 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 2,499 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · derivative · entry 7

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,168

Underlying: Common Stock · 2,499 shares

Expires 2029-07-31

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 March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:14 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 16,667 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · derivative · entry 6

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,667 shares

Expires 2028-05-17

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 March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:14 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 834 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · derivative · entry 5

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 834 shares

Expires 2027-10-12

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 March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:14 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 20,000 $42.12 $842,400.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · nonDerivative · entry 4

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,065

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.32. 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
July 06, 2026 Filed Jul 7, 2026 20:14 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 2,499 $12.00 $29,988.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · nonDerivative · entry 3

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,065

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 March 9, 2026.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:14 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 16,667 $12.00 $200,004.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · nonDerivative · entry 2

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 95,566

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 March 9, 2026.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:14 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 834 $12.00 $10,008.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · nonDerivative · entry 1

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,899

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 March 9, 2026.

Read SEC document
June 16, 2026 Filed Jun 18, 2026 20:31 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 GrantNonqualified Stock Option (Right to Buy) · Derivative 34,808 $0.00 Strike: $40.24 $0.00
Disclosure

SEC source: 0002080538-26-000004 · wk-form4_1781814714.xml · derivative · entry 3

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,808

Underlying: Common Stock · 34,808 shares

Expires 2036-06-15

F3 · derivative.exercise_date: 11,604 of the shares subject to this option will vest on June 16, 2027, 11,602 of the shares subject to this option will vest on June 16, 2028 and the remaining 11,602 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 20:31 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: 0002080538-26-000004 · wk-form4_1781814714.xml · derivative · entry 2

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

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 20:31 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 GrantCommon Stock 4,660 $0.00 $0.00
Disclosure

SEC source: 0002080538-26-000004 · wk-form4_1781814714.xml · nonDerivative · entry 1

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,065

F1 · shares: The amount represents restricted stock units ("RSUs") that vest as to 1,554 on June 16, 2027, 1,553 on June 16, 2028 and the remaining 1,553 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 09, 2026 Filed Jun 10, 2026 20:29 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 9,783 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080538-26-000002 · wk-form4_1781123345.xml · derivative · entry 6

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 834

Underlying: Common Stock · 9,783 shares

Expires 2027-10-12

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 March 9, 2026.

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

Read SEC document
June 09, 2026 Filed Jun 10, 2026 20:29 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 9,783 $40.04 $391,711.32
Disclosure

SEC source: 0002080538-26-000002 · wk-form4_1781123345.xml · nonDerivative · entry 4

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 73,405

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F3 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $40.00 to $40.14. 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 09, 2026 Filed Jun 10, 2026 20:29 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 9,783 $12.00 $117,396.00
Disclosure

SEC source: 0002080538-26-000002 · wk-form4_1781123345.xml · nonDerivative · entry 3

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,188

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 March 9, 2026.

Read SEC document
June 08, 2026 Filed Jun 10, 2026 20:29 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 10,217 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080538-26-000002 · wk-form4_1781123345.xml · derivative · entry 5

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,617

Underlying: Common Stock · 10,217 shares

Expires 2027-10-12

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 March 9, 2026.

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

Read SEC document
June 08, 2026 Filed Jun 10, 2026 20:29 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 SaleCommon Stock 10,217 $40.12 $409,906.04
Disclosure

SEC source: 0002080538-26-000002 · wk-form4_1781123345.xml · nonDerivative · entry 2

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 73,405

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $40.00 to $40.40. 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 08, 2026 Filed Jun 10, 2026 20:29 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 10,217 $12.00 $122,604.00
Disclosure

SEC source: 0002080538-26-000002 · wk-form4_1781123345.xml · nonDerivative · entry 1

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,622

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 March 9, 2026.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:09 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 3,001 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080538-25-000004 · wk-form4_1757621383.xml · derivative · entry 5

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,001 shares

Expires 2025-09-17

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: The options are fully vested.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:09 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 21,999 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080538-25-000004 · wk-form4_1757621383.xml · derivative · entry 4

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 21,999 shares

Expires 2025-09-17

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: The options are fully vested.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:09 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Tax withholdingCommon Stock 1,980 $37.30 $73,854.00
Disclosure

SEC source: 0002080538-25-000004 · wk-form4_1757621383.xml · nonDerivative · entry 3

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,405

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 options exercised and does not represent a sale by the reporting person.

Read SEC document
September 09, 2025 Filed Sep 11, 2025 20:09 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 3,001 $12.00 $36,012.00
Disclosure

SEC source: 0002080538-25-000004 · wk-form4_1757621383.xml · nonDerivative · entry 2

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,385

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
September 09, 2025 Filed Sep 11, 2025 20:09 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionCommon Stock 21,999 $12.00 $263,988.00
Disclosure

SEC source: 0002080538-25-000004 · wk-form4_1757621383.xml · nonDerivative · entry 1

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,384

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 / conversionNonqualified Stock Option (Right to Buy) · Derivative 8,621 $0.00 Strike: $25.78 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 32

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,621

Underlying: Common Stock · 8,621 shares

Expires 2032-03-09

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 8,621 $0.00 Strike: $25.78 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 31

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 8,621 shares

Expires 2032-03-09

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 26,304 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 30

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,304

Underlying: Common Stock · 26,304 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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 26,304 $0.00 Strike: $16.14 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 29

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 26,304 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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 23,430 $0.00 Strike: $15.22 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 28

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,430

Underlying: Common Stock · 23,430 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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 23,430 $0.00 Strike: $15.22 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 27

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 23,430 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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 16,667 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 26

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,667

Underlying: Common Stock · 16,667 shares

Expires 2029-07-31

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.

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

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 16,667 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 25

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 16,667 shares

Expires 2029-07-31

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.

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

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 16,667 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 24

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,667

Underlying: Common Stock · 16,667 shares

Expires 2028-05-17

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 16,667 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 23

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 16,667 shares

Expires 2028-05-17

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 20,834 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 22

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,834

Underlying: Common Stock · 20,834 shares

Expires 2027-10-12

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 20,834 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 21

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 20,834 shares

Expires 2027-10-12

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 3,001 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 20

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,001

Underlying: Common Stock · 3,001 shares

Expires 2025-09-17

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 3,001 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 19

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series B Preferred Stock · 3,001 shares

Expires 2025-09-17

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 3,878 $0.00 Strike: $25.78 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 18

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,878

Underlying: Common Stock · 3,878 shares

Expires 2031-03-09

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 3,878 $0.00 Strike: $25.78 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 17

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 3,878 shares

Expires 2032-03-09

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 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: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 16

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 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: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 15

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 6,570 $0.00 Strike: $15.22 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 14

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,570

Underlying: Common Stock · 6,570 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.

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

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 6,570 $0.00 Strike: $15.22 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 13

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 6,570 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 or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions.

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 8,333 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 12

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,333

Underlying: Common Stock · 8,333 shares

Expires 2029-07-31

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.

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

F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock or Series B Preferred Stock, as applicable. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, 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 19, 2025 20:06 UTC MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative 8,333 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-25-040789 · wk-form4_1755633996.xml · derivative · entry 11

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Nonvoting Common Stock · 8,333 shares

Expires 2029-07-31

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.

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

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

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

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.