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Gallagher Thomas P.'s Form 4 filing

Miami International Holdings, Inc.MIAX · filed Jul 7, 2026

Accession no.
0001628280-26-047530
Filed
Jul 7, 2026, 5:03 PM ET
Trade date
Jul 6-7, 2026
Filing delay
1 day
Rule 10b5-1 plan
Checked

This filing lists 4 non-derivative transactions and 2 derivative transactions. Open-market sales total $2.95M. It was filed 1 day after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Gallagher Thomas P.CIK 0002080477Director, Officer (Chairman & CEO)

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Jul 6, 2026Common StockMOption exerciseAcquired+41,772$12.00+$501,2641,765,047Indirect
Jul 6, 2026Common StockSSaleDisposed−41,772$42.09F3−$1,758,183.481,723,275Indirect
Jul 7, 2026Common StockMOption exerciseAcquired+28,228$12.00+$338,7361,751,503Indirect
Jul 7, 2026Common StockSSaleDisposed−28,228$42.27F4−$1,193,197.561,723,275Indirect

Derivative securities (Table II)

Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.

Derivative transactions
Trade dateSecurityTransactionUnderlying sharesUnit priceValueHeld afterOwnershipFlags
Jul 6, 2026Common StockMOption exerciseDisposed−41,772$0.00$098,228Indirect
Jul 7, 2026Common StockMOption exerciseDisposed−28,228$0.00$070,000Indirect

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

F3

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.

Referenced by the price of 1 transaction in Table I.

F4

This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.50. 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.

Referenced by the price of 1 transaction in Table I.

Read the full filing on SEC EDGAR (opens in a new tab)