Massad Mark I.

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	Company	B/S Transaction type	Nb. shares Price Value	Number of shares	Price	Value
2025-08-15	2025-08-13	Miami International Holdings Inc (MIAX)	B Purchase	18,905 +24.5% 60.49 US$1,358,671	18,905 +24.5%	60.49	US$1,358,671
2025-08-15	2025-08-13	Miami International Holdings Inc (MIAX)	B Purchase	37,485 +32.1% 235.85 US$2,144,539	37,485 +32.1%	235.85	US$2,144,539
2025-08-15	2025-08-13	Miami International Holdings Inc (MIAX)	B Purchase	66,937 +17.0% 224.22 US$3,246,910	66,937 +17.0%	224.22	US$3,246,910
2025-08-15	2025-08-13	Miami International Holdings Inc (MIAX)	B Purchase	3,500 +inf% 23.00 US$80,500	3,500 +inf%	23.00	US$80,500