Schafer Douglas M. JR Insider Trades & Stock Holdings

EVP and CIO · Miami International Holdings, Inc. · Latest filing Oct 2, 2026

Schafer Douglas M. JR, EVP and CIO at Miami International Holdings, Inc. has 1 Form 4 trade on file since Oct 2, 2026. Open-market activity: 0 purchases ($0) and 1 sale ($1.33M), net -$1.33M. Latest filing: disposed of 40K shares of $MIAX on Oct 2, 2026 at $33.34.

Trades on file

1

Open-market bought

$0

Open-market sold

$1.33M

Net open-market

-$1.33M

Latest filing

Oct 2, 2026

All insider trades by Schafer Douglas M. JR

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Oct 2, 2026	$MIAX	Sell (Open-market sale) 10b5-1	40K	$33.34	$1.33M			-7.0%			EVP and CIO		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Schafer Douglas M. JR traded

• $MIAX

Frequently asked questions

Has Schafer Douglas M. JR been buying or selling stock?

Schafer Douglas M. JR has 0 open-market purchases and 1 open-market sale on file, net -$1.33M. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Schafer Douglas M. JR's latest insider trade?

disposed of 40K shares of $MIAX on Oct 2, 2026 at $33.34.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.