NYSE:MIAX

Miami International Holdings Stock Insider Trading

*Your capital is at risk

$43.59

-0.640 (-1.45%)

At Close: Aug 10, 2026

Miami International Holdings Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -63.97. In total, the insiders bought 1.81M and sold 484.98K MIAX shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-63.97
● Buy	1.81M shares
● Sell	484.98K shares
79% Buy Activity Negligible or No Correlation
No Significant Signals No statistically significant buy or sell signals detected in recent insider data.

Historical Insider Trades

Date	Type	Person	Role	Amount
Jun 16, 2026 Buy	Incentive Stock Option (Right to Buy) A-Award	Schafer Douglas M. Jr EVP And Cio	Officer	2 485 Value: $100.0K
Jun 16, 2026 Buy	Nonqualified Stock Option (Right to Buy) A-Award	Schafer Douglas M. Jr EVP And Cio	Officer	21 481 Value: $864.4K
Jun 16, 2026 Buy	Common Stock A-Award	Schafer Douglas M. Jr EVP And Cio	Officer	23 298 Value: $937.5K
Jun 16, 2026 Buy	Incentive Stock Option (Right to Buy) A-Award	Smollen John EVP, New Product Development	Officer	2 485 Value: $100.0K
Jun 16, 2026 Buy	Nonqualified Stock Option (Right to Buy) A-Award	Smollen John EVP, New Product Development	Officer	5 184 Value: $208.6K
Jun 16, 2026 Buy	Common Stock A-Award	Smollen John EVP, New Product Development	Officer	7 455 Value: $300.0K
Jun 16, 2026 Buy	Incentive Stock Option (Right to Buy) A-Award	Deitzel Edward EVP, Cro, Cco Miax Exchanges	Officer	2 485 Value: $100.0K
Jun 16, 2026 Buy	Nonqualified Stock Option (Right to Buy) A-Award	Deitzel Edward EVP, Cro, Cco Miax Exchanges	Officer	7 101 Value: $285.7K
Jun 16, 2026 Buy	Common Stock A-Award	Deitzel Edward EVP, Cro, Cco Miax Exchanges	Officer	9 319 Value: $375.0K
Jun 16, 2026 Buy	Incentive Stock Option (Right to Buy) A-Award	Jayabalan Harish EVP, Ciso And Cro	Officer	2 485 Value: $100.0K
Jun 16, 2026 Buy	Nonqualified Stock Option (Right to Buy) A-Award	Jayabalan Harish EVP, Ciso And Cro	Officer	34 808 Value: $1.40M
Jun 16, 2026 Buy	Common Stock A-Award	Jayabalan Harish EVP, Ciso And Cro	Officer	4 660 Value: $187.5K
Jun 16, 2026 Buy	Common Stock A-Award	Vermaas Cees CEO Of Tiseg	CEO / President	4 660 Value: $187.5K
Jun 16, 2026 Buy	Nonqualified Stock Option (Right to Buy) A-Award	Vermaas Cees CEO Of Tiseg	CEO / President	4 793 Value: $192.9K
Jun 16, 2026 Buy	Common Stock	Alnakib Abdulwahab A Director	Director	0 Value: $0
Jun 16, 2026 Buy	Common Stock	Alnakib Abdulwahab A Director	Director	0 Value: $0
Jun 16, 2026 Buy	Common Stock	Alnakib Abdulwahab A Director	Director	0 Value: $0
Jun 16, 2026 Buy	Common Stock	Alnakib Abdulwahab A Director	Director	0 Value: $0
Jun 16, 2026 Buy	Common Stock A-Award	Sites Eric Director	Director	4 970 Value: $200.0K
Jun 16, 2026 Buy	Nonqualified Stock Option (Right to Buy) A-Award	Eckert Kurt M. Director	Director	7 713 Value: $310.4K
Jun 16, 2026 Buy	Common Stock A-Award	Eckert Kurt M. Director	Director	4 970 Value: $200.0K
Jun 15, 2026 Buy	Common Stock A-Award	Sites Eric Director	Director	714 Value: $31.5K
Jun 15, 2026 Sell	Common Stock S-Sale	Brown Shelly EVP, Chief Strategy Officer	Officer	4 714 Value: $208.5K
Jun 15, 2026 Buy	Common Stock A-Award	Eckert Kurt M. Director	Director	2 267 Value: $100.0K
Jun 15, 2026 Buy	Common Stock A-Award	Teekell Judson Gray Director	Director	2 267 Value: $100.0K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks