Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MIAMI INTERNATIONAL HOLDINGS, INC.MIAX · Entity 4026 | EVP, Chief Strategy Officer | September 16, 2026 | September 17, 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 16, 2026 · Filed September 17, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 316,490 |
Reported balance
After 2026-09-16 transaction · row 1
1 source rowRow 1 · 2026-09-16 · Sale · Disposed 21,217 · Balance 316,490 F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025. F2: This transaction was executed in multiple trades throughout the day at prices ranging from $37.84 to $39.56. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. |
Filing footnotes · ownership attribution and instrument terms
F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025.
F2: This transaction was executed in multiple trades throughout the day at prices ranging from $37.84 to $39.56. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
Transaction history
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 16, 2026 Filed Sep 17, 2026 20:43 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 21,217 | $38.61 | $819,188.37 |
DisclosureSEC source: 0002080506-26-000027 · wk-form4_1789677808.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 316,490 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $37.84 to $39.56. 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 11, 2026 Filed Sep 11, 2026 20:23 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Tax withholdingCommon Stock | 16,283 | $42.54 | $692,678.82 |
DisclosureSEC source: 0002080506-26-000025 · wk-form4_1789158198.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 337,707 F1 · kind: 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 |
| July 06, 2026 Filed Jul 7, 2026 20:10 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 16,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-26-047491 · wk-form4_1783455045.xml · derivative · entry 3 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 16,000 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 22, 2025. F3 · derivative.exercise_date: The options are fully vested. Read SEC document |
| July 06, 2026 Filed Jul 7, 2026 20:10 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 16,000 | $42.13 | $674,080.00 |
DisclosureSEC source: 0001628280-26-047491 · wk-form4_1783455045.xml · nonDerivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 353,990 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025. 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 20:10 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 16,000 | $12.00 | $192,000.00 |
DisclosureSEC source: 0001628280-26-047491 · wk-form4_1783455045.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 369,990 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 22, 2025. Read SEC document |
| June 16, 2026 Filed Jun 18, 2026 20:17 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantNonqualified Stock Option (Right to Buy) · Derivative | 35,861 | $0.00 Strike: $40.24 | $0.00 |
DisclosureSEC source: 0002080506-26-000023 · wk-form4_1781813840.xml · derivative · entry 3 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 35,861 Underlying: Common Stock · 35,861 shares Expires 2036-06-15 F3 · derivative.exercise_date: 11,955 of the shares subject to this option will vest on June 16, 2027, 11,953 of the shares subject to this option will vest on June 16, 2028 and the remaining 11,953 of the shares subject to this option will vest on June 16, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date. Read SEC document |
| June 16, 2026 Filed Jun 18, 2026 20:17 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: 0002080506-26-000023 · wk-form4_1781813840.xml · derivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 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 20:17 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantCommon Stock | 37,276 | $0.00 | $0.00 |
DisclosureSEC source: 0002080506-26-000023 · wk-form4_1781813840.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 353,990 F1 · shares: The amount represents restricted stock units ("RSUs") that vest as to 12,426 shares on June 16, 2027, 12,425 on June 16, 2028 and the remaining 12,425 on June 16, 2029, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date. Read SEC document |
| June 15, 2026 Filed Jun 17, 2026 20:08 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 4,714 | $44.23 | $208,500.22 |
DisclosureSEC source: 0002080506-26-000021 · wk-form4_1781726922.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 316,714 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $43.36 to $45.04. 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 11, 2026 Filed Jun 12, 2026 20:19 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Tax withholdingCommon Stock | 3,619 | $40.79 | $147,619.01 |
DisclosureSEC source: 0002080506-26-000019 · wk-form4_1781295566.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 321,428 F1 · kind: 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 |
| June 02, 2026 Filed Jun 4, 2026 20:37 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 16,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080506-26-000017 · wk-form4_1780605462.xml · derivative · entry 3 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 16,000 Underlying: Common Stock · 16,000 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 22, 2025. F3 · derivative.exercise_date: The options are fully vested. Read SEC document |
| June 02, 2026 Filed Jun 4, 2026 20:37 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 16,000 | $42.12 | $673,920.00 |
DisclosureSEC source: 0002080506-26-000017 · wk-form4_1780605462.xml · nonDerivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 325,047 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 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 20:37 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 16,000 | $12.00 | $192,000.00 |
DisclosureSEC source: 0002080506-26-000017 · wk-form4_1780605462.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 341,047 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 22, 2025. Read SEC document |
| May 04, 2026 Filed May 5, 2026 11:43 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 16,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080506-26-000015 · wk-form4_1777981418.xml · derivative · entry 3 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 32,000 Underlying: Common Stock · 16,000 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 22, 2025. F3 · derivative.exercise_date: The options are fully vested. Read SEC document |
| May 04, 2026 Filed May 5, 2026 11:43 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 16,000 | $47.28 | $756,480.00 |
DisclosureSEC source: 0002080506-26-000015 · wk-form4_1777981418.xml · nonDerivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 325,047 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $46.75 to $47.69. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. Read SEC document |
| May 04, 2026 Filed May 5, 2026 11:43 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 16,000 | $12.00 | $192,000.00 |
DisclosureSEC source: 0002080506-26-000015 · wk-form4_1777981418.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 341,047 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 22, 2025. Read SEC document |
| April 08, 2026 Filed Apr 9, 2026 20:20 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 16,434 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080506-26-000013 · wk-form4_1775766041.xml · derivative · entry 3 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 48,000 Underlying: Common Stock · 16,434 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_date: The options are fully vested. Read SEC document |
| April 08, 2026 Filed Apr 9, 2026 20:20 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 16,434 | $42.08 | $691,542.72 |
DisclosureSEC source: 0002080506-26-000013 · wk-form4_1775766041.xml · nonDerivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 325,047 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 22, 2025. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.26. 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 08, 2026 Filed Apr 9, 2026 20:20 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 16,434 | $12.00 | $197,208.00 |
DisclosureSEC source: 0002080506-26-000013 · wk-form4_1775766041.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 341,481 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 |
| April 07, 2026 Filed Apr 8, 2026 20:19 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 900 | $42.00 | $37,800.00 |
DisclosureSEC source: 0002080506-26-000009 · wk-form4_1775679595.xml · nonDerivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 324,147 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 22, 2025. Read SEC document |
| April 07, 2026 Filed Apr 9, 2026 20:13 UTC Amendment | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 900 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080506-26-000012 · wk-form4a_1775765632.xml · derivative · entry 4 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 64,434 Underlying: Common Stock · 900 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. F2 · derivative.exercise_date: The options are fully vested. Read SEC document |
| April 07, 2026 Filed Apr 9, 2026 20:13 UTC Amendment | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 900 | $42.00 | $37,800.00 |
DisclosureSEC source: 0002080506-26-000012 · wk-form4a_1775765632.xml · nonDerivative · entry 3 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 325,047 Read SEC document |
| April 07, 2026 Filed Apr 9, 2026 20:13 UTC Amendment | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 900 | $12.00 | $10,800.00 |
DisclosureSEC source: 0002080506-26-000012 · wk-form4a_1775765632.xml · nonDerivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 325,947 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 · balance_after: Reflects a correction (i) to an options exercise that occurred simultaneously to the sale of 900 shares of common stock and (ii) to the amount of securities beneficially owned by the Reporting Person. Read SEC document |
| April 06, 2026 Filed Apr 8, 2026 20:19 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 2,357 | $41.33 | $97,414.81 |
DisclosureSEC source: 0002080506-26-000009 · wk-form4_1775679595.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 325,047 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 22, 2025. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $40.10 to $41.79. 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 06, 2026 Filed Apr 9, 2026 20:13 UTC Amendment | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 2,357 | $41.33 | $97,414.81 |
DisclosureSEC source: 0002080506-26-000012 · wk-form4a_1775765632.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 325,047 Read SEC document |
| March 30, 2026 Filed Apr 1, 2026 20:45 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionIncentive Stock Option (Right to Buy) · Derivative | 5,040 | $0.00 Strike: $19.84 | $0.00 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · derivative · entry 11 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 5,040 shares Expires 2033-03-28 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: The options are fully vested. Read SEC document |
| March 30, 2026 Filed Apr 1, 2026 20:45 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 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · derivative · entry 10 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: 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. F2 · derivative.exercise_date: The options are fully vested. Read SEC document |
| March 30, 2026 Filed Apr 1, 2026 20:45 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 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · derivative · entry 9 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 6,195 shares Expires 2031-09-09 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: The options are fully vested. Read SEC document |
| March 30, 2026 Filed Apr 1, 2026 20:45 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 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · derivative · entry 8 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 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. F2 · derivative.exercise_date: The options are fully vested. Read SEC document |
| March 30, 2026 Filed Apr 1, 2026 20:45 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: 0002080506-26-000005 · wk-form4_1775076339.xml · derivative · entry 7 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 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. F2 · derivative.exercise_date: The options are fully vested. Read SEC document |
| March 30, 2026 Filed Apr 1, 2026 20:45 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 5,040 | $19.84 | $99,993.60 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · nonDerivative · entry 6 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 327,404 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 30, 2026 Filed Apr 1, 2026 20:45 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 3,878 | $25.78 | $99,974.84 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · nonDerivative · entry 5 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 322,364 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 30, 2026 Filed Apr 1, 2026 20:45 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 6,195 | $16.14 | $99,987.30 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · nonDerivative · entry 4 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 318,486 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 30, 2026 Filed Apr 1, 2026 20:45 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 6,570 | $15.22 | $99,995.40 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · nonDerivative · entry 3 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 312,291 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 30, 2026 Filed Apr 1, 2026 20:45 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 8,333 | $12.00 | $99,996.00 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · nonDerivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 305,721 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 30, 2026 Filed Apr 1, 2026 20:45 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Tax withholdingCommon Stock | 1,809 | $37.50 | $67,837.50 |
DisclosureSEC source: 0002080506-26-000005 · wk-form4_1775076339.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 297,388 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 23, 2026 Filed Mar 24, 2026 21:28 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 25,932 | $39.33 | $1,019,905.56 |
DisclosureSEC source: 0001628280-26-020862 · wk-form4_1774387722.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 299,197 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 22, 2025. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $38.98 to $39.80. 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 |
| February 18, 2026 Filed Feb 20, 2026 21:31 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Tax withholdingCommon Stock | 19,902 | $40.89 | $813,792.78 |
DisclosureSEC source: 0002080506-26-000002 · wk-form4_1771623076.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 325,129 F1 · shares: Represents shares that have been surrendered to the Company to satisfy tax withholding and remittance obligations in connection with the net settlement of restricted stock awards and does not represent a sale by the reporting person. Read SEC document |
| December 16, 2025 Filed Dec 17, 2025 21:23 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: 0002080506-25-000007 · wk-form4_1766006602.xml · derivative · entry 6 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 8,333 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 · derivative.exercise_date: The options are fully vested. Read SEC document |
| December 16, 2025 Filed Dec 17, 2025 21:23 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: 0002080506-25-000007 · wk-form4_1766006602.xml · derivative · entry 5 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 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 |
| December 16, 2025 Filed Dec 17, 2025 21:23 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: 0002080506-25-000007 · wk-form4_1766006602.xml · derivative · entry 4 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 16,666 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_date: The options are fully vested. Read SEC document |
| December 16, 2025 Filed Dec 17, 2025 21:23 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 8,333 | $12.00 | $99,996.00 |
DisclosureSEC source: 0002080506-25-000007 · wk-form4_1766006602.xml · nonDerivative · entry 3 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 345,031 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| December 16, 2025 Filed Dec 17, 2025 21:23 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 8,333 | $12.00 | $99,996.00 |
DisclosureSEC source: 0002080506-25-000007 · wk-form4_1766006602.xml · nonDerivative · entry 2 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 336,698 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| December 16, 2025 Filed Dec 17, 2025 21:23 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 16,666 | $12.00 | $199,992.00 |
DisclosureSEC source: 0002080506-25-000007 · wk-form4_1766006602.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 328,365 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 10, 2025 Filed Sep 11, 2025 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Tax withholdingCommon Stock | 16,283 | $36.81 | $599,377.23 |
DisclosureSEC source: 0002080506-25-000005 · wk-form4_1757621135.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Strat. Planning & BD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 311,699 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 26, 2025 Filed Aug 28, 2025 20:37 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Tax withholdingCommon Stock | 11,047 | $33.90 | $374,493.30 |
DisclosureSEC source: 0002080506-25-000002 · wk-form4_1756413450.xml · nonDerivative · entry 1 Brown Shelly · CIK 0002080506 · EVP, Strat. Planning & BD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 327,982 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 15, 2025 Filed Aug 19, 2025 20:07 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 46,121 | $0.00 Strike: $25.78 | $0.00 |
DisclosureSEC source: 0001628280-25-040792 · wk-form4_1755634027.xml · derivative · entry 32 Brown Shelly · CIK 0002080506 · EVP, Strat. Planning & BD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 46,121 Underlying: Common Stock · 46,121 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. 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 20:07 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 46,121 | $0.00 Strike: $25.78 | $0.00 |
DisclosureSEC source: 0001628280-25-040792 · wk-form4_1755634027.xml · derivative · entry 31 Brown Shelly · CIK 0002080506 · EVP, Strat. Planning & BD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 46,121 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. 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 20:07 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 18,804 | $0.00 Strike: $16.14 | $0.00 |
DisclosureSEC source: 0001628280-25-040792 · wk-form4_1755634027.xml · derivative · entry 30 Brown Shelly · CIK 0002080506 · EVP, Strat. Planning & BD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 18,804 Underlying: Common Stock · 18,804 shares Expires 2031-09-09 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:07 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative | 18,804 | $0.00 Strike: $16.14 | $0.00 |
DisclosureSEC source: 0001628280-25-040792 · wk-form4_1755634027.xml · derivative · entry 29 Brown Shelly · CIK 0002080506 · EVP, Strat. Planning & BD 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 18,804 shares Expires 2031-09-09 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F3 · shares: The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. F4 · derivative.exercise_date: The options are fully vested. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.