Thomas P. Gallagher

MIAX

Thomas P. Gallagher serves as director, officer: Chairman & CEO at Miami International Holdings, Inc. (MIAX). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$276.0K

Total Sells

6 trades

$21.94M

Net Position

Net Seller

$21.67M

Companies Traded

MIAX

Active Period

Aug 2025 – Jul 2026

7 total trades

Most Recent

Sell MIAX

Jul 14, 2026 · $2.98M

Thomas P. Gallagher's Insider Trading at Miami International Holdings, Inc. (MIAX)

Buys

1 · $276.0K

Sells

6 · $21.94M

Total Shares Bought

12,000

Total Shares Sold

504,025

MIAX Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Jul 14, 2026	Sell	70,000	$42.52	$2.98M	1,723,275
Jul 7, 2026	Sell	70,000	$42.16	$2.95M	1,723,275
Jun 4, 2026	Sell	70,000	$42.36	$2.97M	1,723,275
May 7, 2026	Sell	15,771	$47.92	$755.7K	1,723,275
May 5, 2026	Sell	54,229	$47.26	$2.56M	1,723,275
Apr 17, 2026	Sell	224,025	$43.43	$9.73M	1,827,399
Aug 15, 2025	Buy	12,000	$23.00	$276.0K	12,000