Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MIAMI INTERNATIONAL HOLDINGS, INC.MIAX · Entity 4026 | EVP, GC & Corporate Secretary | September 02, 2026 | September 04, 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 02, 2026 · Filed September 04, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 839,564 |
Ending reported balance
After 2026-09-02 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2026-09-02 · Exercise / conversion · Acquired 44,445 · Balance 884,009 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 · 2026-09-02 · Sale · Disposed 44,445 · Balance 839,564 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 $39.66 to $41.80. 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. |
| Nonqualified Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $12.00 · Expires 2028-05-28 | Direct | 44,444 |
Reported balance
After 2026-09-02 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-09-02 · Exercise / conversion · Disposed 44,445 · Balance 44,444 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 $39.66 to $41.80. 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
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 02, 2026 Filed Sep 4, 2026 20:31 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 44,445 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080878-26-000016 · wk-form4_1788553869.xml · derivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 44,444 Underlying: Common Stock · 44,445 shares Expires 2028-05-28 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 |
| September 02, 2026 Filed Sep 4, 2026 20:31 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 44,445 | $40.49 | $1,799,578.05 |
DisclosureSEC source: 0002080878-26-000016 · wk-form4_1788553869.xml · nonDerivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 839,564 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 $39.66 to $41.80. 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 |
| September 02, 2026 Filed Sep 4, 2026 20:31 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 44,445 | $12.00 | $533,340.00 |
DisclosureSEC source: 0002080878-26-000016 · wk-form4_1788553869.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 884,009 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 |
| August 18, 2026 Filed Aug 20, 2026 20:11 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Tax withholdingCommon Stock | 43,420 | $42.41 | $1,841,442.20 |
DisclosureSEC source: 0002080878-26-000014 · wk-form4_1787256687.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 839,564 F1 · shares: Represents shares that have been surrendered to the Company to satisfy tax withholding and remittance obligations in connection with the net settlement of restricted stock awards and does not represent a sale by the reporting person. Read SEC document |
| August 04, 2026 Filed Aug 6, 2026 20:09 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 44,445 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080878-26-000012 · wk-form4_1786046972.xml · derivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 88,889 Underlying: Common Stock · 44,445 shares Expires 2028-05-28 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · date: 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 20:09 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 44,445 | $45.69 | $2,030,692.05 |
DisclosureSEC source: 0002080878-26-000012 · wk-form4_1786046972.xml · nonDerivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 882,984 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 $45.09 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 20:09 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 44,445 | $12.00 | $533,340.00 |
DisclosureSEC source: 0002080878-26-000012 · wk-form4_1786046972.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 927,429 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 13, 2026 Filed Jul 14, 2026 20:07 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 28,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-26-048154 · wk-form4_1784059634.xml · derivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 28,000 shares Expires 2026-08-02 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 |
| July 13, 2026 Filed Jul 14, 2026 20:07 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 28,000 | $41.98 | $1,175,440.00 |
DisclosureSEC source: 0001628280-26-048154 · wk-form4_1784059634.xml · nonDerivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 882,984 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 $41.40 to $43.52. 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 13, 2026 Filed Jul 14, 2026 20:07 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 28,000 | $12.00 | $336,000.00 |
DisclosureSEC source: 0001628280-26-048154 · wk-form4_1784059634.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 910,984 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 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 28,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-26-047486 · wk-form4_1783454814.xml · derivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 28,000 Underlying: Common Stock · 28,000 shares Expires 2026-08-02 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 |
| July 02, 2026 Filed Jul 7, 2026 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 28,000 | $41.22 | $1,154,160.00 |
DisclosureSEC source: 0001628280-26-047486 · wk-form4_1783454814.xml · nonDerivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 882,984 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 $39.79 to $41.79. 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 02, 2026 Filed Jul 7, 2026 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 28,000 | $12.00 | $336,000.00 |
DisclosureSEC source: 0001628280-26-047486 · wk-form4_1783454814.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 910,984 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 18, 2026 20:16 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantNonqualified Stock Option (Right to Buy) · Derivative | 37,778 | $0.00 Strike: $40.24 | $0.00 |
DisclosureSEC source: 0002080878-26-000010 · wk-form4_1781813755.xml · derivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 37,778 Underlying: Common Stock · 37,778 shares Expires 2036-06-15 F3 · derivative.exercise_date: 12,594 of the shares subject to this option will vest on June 16, 2027, 12,592 of the shares subject to this option will vest on June 16, 2028 and the remaining 12,592 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 20:16 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantIncentive Stock Option (Right to Buy) · Derivative | 2,485 | $0.00 Strike: $40.24 | $0.00 |
DisclosureSEC source: 0002080878-26-000010 · wk-form4_1781813755.xml · derivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 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 20:16 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantCommon Stock | 39,140 | $0.00 | $0.00 |
DisclosureSEC source: 0002080878-26-000010 · wk-form4_1781813755.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 882,984 F1 · shares: The amount represents restricted stock units ("RSUs") that vest as to 13,048 shares on June 16, 2027, 13,046 on June 16, 2028 and the remaining 13,046 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 02, 2026 Filed Jun 4, 2026 20:46 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 28,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080878-26-000008 · wk-form4_1780605967.xml · derivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 56,000 Underlying: Common Stock · 28,000 shares Expires 2026-08-02 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 20:46 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 28,000 | $42.85 | $1,199,800.00 |
DisclosureSEC source: 0002080878-26-000008 · wk-form4_1780605967.xml · nonDerivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 843,844 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 $41.31 to $45.73. 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 02, 2026 Filed Jun 4, 2026 20:46 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 28,000 | $12.00 | $336,000.00 |
DisclosureSEC source: 0002080878-26-000008 · wk-form4_1780605967.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 871,844 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 11:30 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 28,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080878-26-000006 · wk-form4_1777980639.xml · derivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 84,000 Underlying: Common Stock · 28,000 shares Expires 2026-08-02 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 |
| May 04, 2026 Filed May 5, 2026 11:30 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 28,000 | $47.26 | $1,323,280.00 |
DisclosureSEC source: 0002080878-26-000006 · wk-form4_1777980639.xml · nonDerivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 843,844 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 11:30 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 28,000 | $12.00 | $336,000.00 |
DisclosureSEC source: 0002080878-26-000006 · wk-form4_1777980639.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 871,844 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 |
| April 15, 2026 Filed Apr 17, 2026 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 29,667 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-26-025749 · wk-form4_1776456943.xml · derivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 112,000 Underlying: Common Stock · 29,667 shares Expires 2026-08-02 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 |
| April 15, 2026 Filed Apr 17, 2026 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 29,667 | $43.64 | $1,294,667.88 |
DisclosureSEC source: 0001628280-26-025749 · wk-form4_1776456943.xml · nonDerivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 843,844 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 $42.68 to $44.37. 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 |
| April 15, 2026 Filed Apr 17, 2026 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 29,667 | $12.00 | $356,004.00 |
DisclosureSEC source: 0001628280-26-025749 · wk-form4_1776456943.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 873,511 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 30, 2026 Filed Apr 1, 2026 20:43 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Tax withholdingCommon Stock | 1,448 | $37.50 | $54,300.00 |
DisclosureSEC source: 0002080878-26-000004 · wk-form4_1775076212.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 843,844 F1 · shares: Represents shares that have been surrendered to the Company to satisfy tax withholding and remittance obligations in connection with the net settlement of restricted stock awards and does not represent a sale by the reporting person. Read SEC document |
| March 09, 2026 Filed Mar 10, 2026 20:40 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative | 16,666 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080878-26-000002 · wk-form4_1773175248.xml · derivative · entry 6 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 16,666 shares Expires 2028-05-28 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · 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 · derivative.exercise_date: The options are fully vested. Read SEC document |
| March 09, 2026 Filed Mar 10, 2026 20:40 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 |
DisclosureSEC source: 0002080878-26-000002 · wk-form4_1773175248.xml · derivative · entry 5 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 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. F1 · 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 · derivative.exercise_date: The options are fully vested. Read SEC document |
| March 09, 2026 Filed Mar 10, 2026 20:40 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 |
DisclosureSEC source: 0002080878-26-000002 · wk-form4_1773175248.xml · derivative · entry 4 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 8,333 shares Expires 2026-08-02 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: 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 · derivative.exercise_date: The options are fully vested. Read SEC document |
| March 09, 2026 Filed Mar 10, 2026 20:40 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 16,666 | $12.00 | $199,992.00 |
DisclosureSEC source: 0002080878-26-000002 · wk-form4_1773175248.xml · nonDerivative · entry 3 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 845,292 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 |
| March 09, 2026 Filed Mar 10, 2026 20:40 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 8,333 | $12.00 | $99,996.00 |
DisclosureSEC source: 0002080878-26-000002 · wk-form4_1773175248.xml · nonDerivative · entry 2 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 828,626 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 |
| March 09, 2026 Filed Mar 10, 2026 20:40 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 8,333 | $12.00 | $99,996.00 |
DisclosureSEC source: 0002080878-26-000002 · wk-form4_1773175248.xml · nonDerivative · entry 1 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 820,293 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 | 150,000 | $0.00 Strike: $16.14 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 22 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 150,000 Underlying: Common Stock · 150,000 shares Expires 2031-09-09 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 150,000 | $0.00 Strike: $16.14 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 21 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 150,000 shares Expires 2031-09-09 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 136,860 | $0.00 Strike: $15.22 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 20 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 136,860 Underlying: Common Stock · 136,860 shares Expires 2031-01-27 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 136,860 | $0.00 Strike: $15.22 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 19 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 136,860 shares Expires 2031-01-27 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 141,667 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 18 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 141,667 Underlying: Common Stock · 141,667 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. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 141,667 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 17 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 141,667 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. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 133,334 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 16 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 133,334 Underlying: Common Stock · 133,334 shares Expires 2028-05-28 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 133,334 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 15 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 133,334 shares Expires 2028-05-28 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 141,667 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 14 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 141,667 Underlying: Common Stock · 141,667 shares Expires 2026-08-02 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 141,667 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 13 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 141,667 shares Expires 2026-08-02 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative | 13,140 | $0.00 Strike: $15.22 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 12 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,140 Underlying: Common Stock · 13,140 shares Expires 2031-01-27 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative | 13,140 | $0.00 Strike: $15.22 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 11 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 13,140 shares Expires 2031-01-27 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 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 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 10 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 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. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 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 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 9 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 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. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative | 16,666 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 8 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 16,666 Underlying: Common Stock · 16,666 shares Expires 2028-05-28 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:06 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative | 16,666 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 7 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 16,666 shares Expires 2028-05-28 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 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 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 6 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,333 Underlying: Common Stock · 8,333 shares Expires 2026-08-02 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 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 |
DisclosureSEC source: 0001628280-25-040787 · wk-form4_1755633977.xml · derivative · entry 5 Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 8,333 shares Expires 2026-08-02 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.