NYSE:MIAX

Miami International Holdings Stock Insider Trading

*Your capital is at risk

$36.65

-1.00 (-2.66%)

At Close: Jun 22, 2026

Miami International Holdings Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -35.62. In total, the insiders bought 1.37M and sold 268.76K 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)	-35.62
● Buy	1.37M shares
● Sell	268.76K shares
85% Buy Activity Weak Negative 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 09, 2026 Buy	Stock Option (Right to Buy) M-Exempt	Stahlin Paul Director	Director	7 000 Value: $84.0K
Jun 09, 2026 Buy	Common Stock M-Exempt	Jayabalan Harish EVP, Ciso And Cro	Officer	9 783 Value: $117.4K
Jun 09, 2026 Sell	Common Stock S-Sale	Jayabalan Harish EVP, Ciso And Cro	Officer	9 783 Value: $391.7K
Jun 09, 2026 Buy	Nonqualified Stock Option (Right to Buy) M-Exempt	Jayabalan Harish EVP, Ciso And Cro	Officer	9 783 Value: $117.4K
Jun 08, 2026 Buy	Common Stock M-Exempt	Jayabalan Harish EVP, Ciso And Cro	Officer	10 217 Value: $122.6K
Jun 08, 2026 Sell	Common Stock S-Sale	Jayabalan Harish EVP, Ciso And Cro	Officer	10 217 Value: $409.9K
Jun 08, 2026 Buy	Nonqualified Stock Option (Right to Buy) M-Exempt	Jayabalan Harish EVP, Ciso And Cro	Officer	10 217 Value: $122.6K
Jun 02, 2026 Sell	Common Stock S-Sale	Teekell Judson Gray Director	Director	3 000 Value: $128.3K
Jun 02, 2026 Buy	Common Stock M-Exempt	Eckert Kurt M. Director	Director	5 250 Value: $63.0K
Jun 02, 2026 Sell	Common Stock S-Sale	Eckert Kurt M. Director	Director	5 250 Value: $224.5K
Jun 02, 2026 Buy	Stock Option (Right to Buy) M-Exempt	Eckert Kurt M. Director	Director	5 250 Value: $63.0K
Jun 02, 2026 Buy	Common Stock M-Exempt	Comly Barbara J. EVP, GC & Corporate Secretary	Officer	28 000 Value: $336.0K
Jun 02, 2026 Sell	Common Stock S-Sale	Comly Barbara J. EVP, GC & Corporate Secretary	Officer	28 000 Value: $1.20M
Jun 02, 2026 Buy	Nonqualified Stock Option (Right to Buy) M-Exempt	Comly Barbara J. EVP, GC & Corporate Secretary	Officer	28 000 Value: $336.0K
Jun 02, 2026 Buy	Common Stock M-Exempt	Deitzel Edward EVP, Cro, Cco Miax Exchanges	Officer	11 000 Value: $132.0K
Jun 02, 2026 Sell	Common Stock S-Sale	Deitzel Edward EVP, Cro, Cco Miax Exchanges	Officer	11 000 Value: $463.8K
Jun 02, 2026 Buy	Nonqualified Stock Option (Right to Buy) M-Exempt	Deitzel Edward EVP, Cro, Cco Miax Exchanges	Officer	11 000 Value: $132.0K
Jun 02, 2026 Buy	Common Stock M-Exempt	Schafer Douglas M. Jr EVP And Cio	Officer	48 000 Value: $576.0K
Jun 02, 2026 Sell	Common Stock S-Sale	Schafer Douglas M. Jr EVP And Cio	Officer	48 000 Value: $2.06M
Jun 02, 2026 Buy	Nonqualified Stock Option (Right to Buy) M-Exempt	Schafer Douglas M. Jr EVP And Cio	Officer	48 000 Value: $576.0K
Jun 02, 2026 Buy	Common Stock M-Exempt	Brown Shelly EVP, Chief Strategy Officer	Officer	16 000 Value: $192.0K
Jun 02, 2026 Sell	Common Stock S-Sale	Brown Shelly EVP, Chief Strategy Officer	Officer	16 000 Value: $673.9K
Jun 02, 2026 Buy	Nonqualified Stock Option (Right to Buy) M-Exempt	Brown Shelly EVP, Chief Strategy Officer	Officer	16 000 Value: $192.0K
Jun 02, 2026 Buy	Common Stock M-Exempt	Gallagher Thomas P. Chairman & CEO	CEO / President	70 000 Value: $840.0K
Jun 02, 2026 Sell	Common Stock S-Sale	Gallagher Thomas P. Chairman & CEO	CEO / President	70 000 Value: $2.97M

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