Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MIAMI INTERNATIONAL HOLDINGS, INC.MIAX · Entity 4026 | Director | August 17, 2026 | August 19, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
MIAMI INTERNATIONAL HOLDINGS, INC.
Report date August 17, 2026 · Filed August 19, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 88,545 |
Ending reported balance
After 2026-08-17 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2026-08-17 · Exercise / conversion · Acquired 5,000 · Balance 93,545 F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. Row 2 · 2026-08-17 · Sale · Disposed 5,000 · Balance 88,545 F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. F2: This transaction was executed in multiple trades throughout the day at prices ranging from $42.54 to $43.33. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $12.00 · Expires 2027-05-31 | Direct | 11,916 |
Reported balance
After 2026-08-17 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-08-17 · Exercise / conversion · Disposed 5,000 · Balance 11,916 F1: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. 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 March 12, 2026.
F2: This transaction was executed in multiple trades throughout the day at prices ranging from $42.54 to $43.33. 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 |
|---|---|---|---|---|---|---|
| August 17, 2026 Filed Aug 19, 2026 20:12 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 5,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-26-057950 · wk-form4_1787170325.xml · derivative · entry 3 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 11,916 Underlying: Common Stock · 5,000 shares Expires 2027-05-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. F3 · derivative.exercise_date: The options are fully vested. Read SEC document |
| August 17, 2026 Filed Aug 19, 2026 20:12 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 5,000 | $42.85 | $214,250.00 |
DisclosureSEC source: 0001628280-26-057950 · wk-form4_1787170325.xml · nonDerivative · entry 2 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 88,545 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.54 to $43.33. 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 17, 2026 Filed Aug 19, 2026 20:12 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 5,000 | $12.00 | $60,000.00 |
DisclosureSEC source: 0001628280-26-057950 · wk-form4_1787170325.xml · nonDerivative · entry 1 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 93,545 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. Read SEC document |
| July 15, 2026 Filed Jul 16, 2026 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 5,000 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080596-26-000006 · wk-form4_1784232907.xml · derivative · entry 3 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 16,916 Underlying: Common Stock · 5,000 shares Expires 2027-05-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. F2 · derivative.exercise_date: The options are fully vested. Read SEC document |
| July 15, 2026 Filed Jul 16, 2026 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 5,000 | $42.00 | $210,000.00 |
DisclosureSEC source: 0002080596-26-000006 · wk-form4_1784232907.xml · nonDerivative · entry 2 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 88,545 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. Read SEC document |
| July 15, 2026 Filed Jul 16, 2026 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 5,000 | $12.00 | $60,000.00 |
DisclosureSEC source: 0002080596-26-000006 · wk-form4_1784232907.xml · nonDerivative · entry 1 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 93,545 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. Read SEC document |
| June 16, 2026 Filed Jun 17, 2026 20:39 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantNonqualified Stock Option (Right to Buy) · Derivative | 5,142 | $0.00 Strike: $40.24 | $0.00 |
DisclosureSEC source: 0002080596-26-000004 · wk-form4_1781728753.xml · derivative · entry 3 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,142 Underlying: Common Stock · 5,142 shares Expires 2036-06-15 F3 · derivative.exercise_date: 2,571 of the shares subject to this option will vest on June 30, 2026, 1,285 of the shares subject to this option will vest on September 30, 2026 and the remaining 1,286 of the shares subject to this option will vest on December 31, 2026, subject to the Reporting Person's continued service to the Issuer or its subsidiaries through the applicable vesting date. Read SEC document |
| June 16, 2026 Filed Jun 17, 2026 20:39 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantCommon Stock | 4,970 | $0.00 | $0.00 |
DisclosureSEC source: 0002080596-26-000004 · wk-form4_1781728753.xml · nonDerivative · entry 2 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 88,545 F2 · shares: The amount represents RSUs that vest on the last business day immediately preceding the 2027 annual meeting of stockholders, subject to the reporting person's continued service to the Issuer through the vesting date. Read SEC document |
| June 15, 2026 Filed Jun 17, 2026 20:39 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantCommon Stock | 2,267 | $0.00 | $0.00 |
DisclosureSEC source: 0002080596-26-000004 · wk-form4_1781728753.xml · nonDerivative · entry 1 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 83,575 F1 · shares: The amount represents restricted stock units ("RSUs") that fully vested on the date of grant. Each RSU represents a right to receive one share of the Issuer's common stock. Read SEC document |
| June 11, 2026 Filed Jun 12, 2026 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 19,500 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0002080596-26-000002 · wk-form4_1781295350.xml · derivative · entry 3 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 19,500 shares Expires 2026-06-19 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. F3 · derivative.exercise_date: The options are fully vested. Read SEC document |
| June 11, 2026 Filed Jun 12, 2026 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | SaleCommon Stock | 19,500 | $41.73 | $813,735.00 |
DisclosureSEC source: 0002080596-26-000002 · wk-form4_1781295350.xml · nonDerivative · entry 2 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 81,308 F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $40.86 to $42.75. 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 20:15 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionCommon Stock | 19,500 | $12.00 | $234,000.00 |
DisclosureSEC source: 0002080596-26-000002 · wk-form4_1781295350.xml · nonDerivative · entry 1 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 100,808 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 32,501 | $0.00 Strike: $16.14 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 16 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 32,501 Underlying: Common Stock · 32,501 shares Expires 2031-05-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 32,501 | $0.00 Strike: $16.14 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 15 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 32,501 shares Expires 2031-05-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 28,437 | $0.00 Strike: $14.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 14 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 28,437 Underlying: Common Stock · 28,437 shares Expires 2030-06-30 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 28,437 | $0.00 Strike: $14.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 13 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 28,437 shares Expires 2030-06-30 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 22,708 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 12 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,708 Underlying: Common Stock · 22,708 shares Expires 2029-05-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 22,708 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 11 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 22,708 shares Expires 2029-05-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 21,250 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 10 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,250 Underlying: Common Stock · 21,250 shares Expires 2028-04-30 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 21,250 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 9 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 21,250 shares Expires 2028-04-30 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 21,916 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 8 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,916 Underlying: Common Stock · 21,916 shares Expires 2027-05-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 21,916 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 7 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 21,916 shares Expires 2027-05-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. 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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 19,500 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 6 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,500 Underlying: Common Stock · 19,500 shares Expires 2026-06-19 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | Exercise / conversionStock Option (Right to Buy) · Derivative | 19,500 | $0.00 Strike: $12.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 5 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Nonvoting Common Stock · 19,500 shares Expires 2026-06-19 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_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 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | ConversionNonvoting Common Stock · Derivative | 45,058 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 4 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 45,058 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: Includes 45,058 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. F2 · shares: Includes 45,058 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. F2 · derivative.exercise_date: Includes 45,058 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. F2 · derivative.expiration_date: Includes 45,058 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | ConversionSeries B Preferred Stock · Derivative | 36,250 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · derivative · entry 3 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 36,250 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. F1 · shares: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. F1 · derivative.exercise_date: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. F1 · derivative.expiration_date: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | ConversionCommon Stock | 45,058 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · nonDerivative · entry 2 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 81,308 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 · shares: Includes 45,058 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. F1 · price: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. F1 · balance_after: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. F2 · balance_after: Includes 45,058 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:05 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | ConversionCommon Stock | 36,250 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001628280-25-040780 · wk-form4_1755633911.xml · nonDerivative · entry 1 Schwarzkopf Cynthia · CIK 0002080596 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 81,308 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · shares: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. F1 · price: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. F1 · balance_after: Includes 36,250 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. F2 · balance_after: Includes 45,058 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. 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.