Douglas M. Schafer JR

MIAX

Douglas M. Schafer JR serves as officer: EVP and CIO at Miami International Holdings, Inc. (MIAX). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

2 trades

$3.24M

Net Position

Net Seller

$3.24M

Companies Traded

MIAX

Active Period

Feb 2026 – Mar 2026

2 total trades

Most Recent

Sell MIAX

Mar 18, 2026 · $1.91M

Douglas M. Schafer JR's Insider Trading at Miami International Holdings, Inc. (MIAX)

Buys

0 · $0.00

Sells

2 · $3.24M

Total Shares Bought

Total Shares Sold

80,565

MIAX Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Mar 18, 2026	Sell	48,000	$39.74	$1.91M	396,681
Feb 18, 2026	Sell	32,565	$40.89	$1.33M	0

Related Insiders

Thomas P. Gallagher

director, officer: Chairman & CEO

MIAXSell · Apr 17, 2026

Barbara J. Comly

officer: EVP, GC & Corporate Secretary

MIAXSell · Apr 17, 2026

Edward Deitzel

officer: EVP, CRO, CCO MIAX Exchanges

MIAXSell · Apr 9, 2026

Shelly Brown

officer: EVP, Chief Strategy Officer

MIAXSell · Apr 9, 2026

Judson Gray Teekell

director

MIAXSell · Apr 3, 2026

Kurt M. Eckert

director

MIAXSell · Mar 20, 2026

STAHL MURRAY

Director

MIAXSell · Mar 6, 2026

Lance Emmons

EVP and CFO

MIAXBuy · Aug 18, 2025

Explore More Insider Trading Data

MIAX Insider Trading Activity

View all insider trades at Miami International Holdings, Inc.

Financial Services Sector Insider Trades

See insider activity across financial services stocks

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity