Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MIAMI INTERNATIONAL HOLDINGS, INC.MIAX · Entity 4026 | Director | June 15, 2026 | June 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 June 15, 2026 · Filed June 17, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 10,737 |
Ending reported balance
After 2026-06-16 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2026-06-15 · Grant · Acquired 2,267 · Balance 5,767 F1: 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. Row 2 · 2026-06-16 · Grant · Acquired 4,970 · Balance 10,737 F2: 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. |
Filing footnotes · ownership attribution and instrument terms
F1: 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.
F2: 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.
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 |
|---|---|---|---|---|---|---|
| June 16, 2026 Filed Jun 17, 2026 20:33 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantCommon Stock | 4,970 | $0.00 | $0.00 |
DisclosureSEC source: 0002080776-26-000002 · wk-form4_1781728378.xml · nonDerivative · entry 2 Massad Mark I. · CIK 0002080776 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,737 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 20:33 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | GrantCommon Stock | 2,267 | $0.00 | $0.00 |
DisclosureSEC source: 0002080776-26-000002 · wk-form4_1781728378.xml · nonDerivative · entry 1 Massad Mark I. · CIK 0002080776 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,767 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 |
| August 13, 2025 Filed Aug 15, 2025 20:48 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | PurchaseCommon Stock | 500 | $23.00 | $11,500.00 |
DisclosureSEC source: 0001628280-25-040554 · wk-form4_1755290890.xml · nonDerivative · entry 4 Massad Mark I. · CIK 0002080776 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · By child Disclosed balance after: 500 F1 · ownership.nature: Mr. Massad disclaims beneficial ownership of the shares of common stock owned by his spouse and children. Read SEC document |
| August 13, 2025 Filed Aug 15, 2025 20:48 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | PurchaseCommon Stock | 1,500 | $23.00 | $34,500.00 |
DisclosureSEC source: 0001628280-25-040554 · wk-form4_1755290890.xml · nonDerivative · entry 3 Massad Mark I. · CIK 0002080776 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · By child Disclosed balance after: 1,500 F1 · ownership.nature: Mr. Massad disclaims beneficial ownership of the shares of common stock owned by his spouse and children. Read SEC document |
| August 13, 2025 Filed Aug 15, 2025 20:48 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | PurchaseCommon Stock | 2,500 | $23.00 | $57,500.00 |
DisclosureSEC source: 0001628280-25-040554 · wk-form4_1755290890.xml · nonDerivative · entry 2 Massad Mark I. · CIK 0002080776 · Director 10b5-1 filing: No plan indicated Ownership: Indirect · By spouse Disclosed balance after: 2,500 F1 · ownership.nature: Mr. Massad disclaims beneficial ownership of the shares of common stock owned by his spouse and children. Read SEC document |
| August 13, 2025 Filed Aug 15, 2025 20:48 UTC | MIAMI INTERNATIONAL HOLDINGS, INC. MIAX · Entity 4026 | PurchaseCommon Stock | 3,500 | $23.00 | $80,500.00 |
DisclosureSEC source: 0001628280-25-040554 · wk-form4_1755290890.xml · nonDerivative · entry 1 Massad Mark I. · CIK 0002080776 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,500 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.