Gallagher Thomas P.

Chairman & CEO, DirectorMIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) · full profile →Form 4 · filed Aug 20, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$6.2M
Net Open-Market Flow
-$6.2M
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Aug 19, 2026Sell(S)150K$41.13$6.2M1.4M
Aug 18, 2026Tax withholding(F)150K$42.41$6.4M1.6M

Transaction Codes

S
Open-market sale
F
Shares withheld for taxes

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0002080477-26-000016) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

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