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Stock filings

MIAX insider trades & Congress trades

Miami International Holdings, Inc.: public insider filings and Congress disclosures, in one place.

24insider buys + sells
0Congress trades
0 / 17insider buys / sells, 90 days
–latest buying cluster

Bourse has recorded 24 open-market insider transactions in Miami International Holdings, Inc. (MIAX) (0 purchases with code P and 24 sales with code S), the most recent on November 4, 2026.

In the last 90 days: 0 purchases by 0 insiders ($0) and 17 sales by 8 ($21.7M).

Insider transactions

SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.

DateInsiderRoleTypeSharesPriceValueAfter 1M
Nov 4, 2026Comly Barbara J.EVP, GC & Corporate SecretarySell56,022$35.07$1.96M–
Nov 4, 2026Schafer Douglas M. JREVP and CIOSell8,000$35.00$280K–
Nov 3, 2026Schafer Douglas M. JREVP and CIOSell40,000$34.07$1.36M–
Nov 2, 2026Comly Barbara J.EVP, GC & Corporate SecretarySell23,339$35.10$819K–
Oct 22, 2026Schafer Douglas M. JREVP and CIOSell8,000$35.06$280K–
Oct 22, 2026Comly Barbara J.EVP, GC & Corporate SecretarySell12,306$35.04$431K–
Oct 2, 2026Schafer Douglas M. JREVP and CIOSell40,000$33.34$1.33M–
Sep 16, 2026Brown ShellyEVP, Chief Strategy OfficerSell21,217$38.61$819K−0.2%
Sep 3, 2026Deitzel EdwardEVP, CRO, CCO MIAX ExchangesSell11,000$42.21$464K−0.3%
Sep 3, 2026Gallagher Thomas P.Chairman & CEOSell47,000$42.43$1.99M−0.3%
Sep 2, 2026Teekell Judson Gray–Sell5,545$41.58$231K−0.3%
Sep 2, 2026Teekell Judson Gray–Sell3,000$40.89$123K−0.3%
Sep 2, 2026Schafer Douglas M. JREVP and CIOSell48,000$40.48$1.94M−0.3%
Sep 2, 2026Comly Barbara J.EVP, GC & Corporate SecretarySell44,445$40.49$1.80M−0.3%
Aug 19, 2026Gallagher Thomas P.Chairman & CEOSell149,700$41.13$6.16M−0.1%
Aug 17, 2026Schwarzkopf Cynthia–Sell5,000$42.85$214K−0.1%
Aug 17, 2026Emmons LanceEVP and CFOSell35,000$42.83$1.50M−0.1%
Aug 4, 2026Gallagher Thomas P.Chairman & CEOSell48,334$45.69$2.21M−0.1%
Aug 4, 2026Schafer Douglas M. JREVP and CIOSell48,000$45.71$2.19M−0.1%
Aug 4, 2026Deitzel EdwardEVP, CRO, CCO MIAX ExchangesSell11,000$45.78$504K−0.1%
Aug 4, 2026Comly Barbara J.EVP, GC & Corporate SecretarySell44,445$45.69$2.03M−0.1%
Aug 4, 2026Jayabalan HarishEVP, CISO and CROSell20,000$45.90$918K−0.1%
Aug 4, 2026Teekell Judson Gray–Sell3,000$45.79$137K−0.1%
Aug 4, 2026Eckert Kurt M.–Sell1,063$45.80$49K−0.1%

Data as of November 8, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.

New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.

See these filings as they land

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