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NYSE: MIAX
Miami International Holdings Inc Stock Ownership - Who owns Miami International Holdings?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Miami International Holdings Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Thomas P. GallagherChairman CEO2026-05-1124,999$12.00
$299.99kBuy
Thomas P. GallagherChairman CEO2026-05-0515,771$12.00
$189.25kBuy
Thomas P. GallagherChairman CEO2026-05-0515,771$47.92
$755.75kSell
Edward DeitzelEVP CRO CCO MIAX Exchanges2026-05-0411,000$47.28
$520.08kSell
Barbara J. ComlyEVP GC Corporate Secretary2026-05-0428,000$47.26
$1.32MSell
Thomas P. GallagherChairman CEO2026-05-0454,229$47.26
$2.56MSell
Thomas P. GallagherChairman CEO2026-05-0454,229$12.00
$650.75kBuy
Kurt M. EckertDirector2026-05-045,625$47.29
$266.01kSell
Judson Gray TeekellDirector2026-05-043,000$47.30
$141.90kSell
Douglas M. Schafer Jr.EVP and CIO2026-05-0448,000$47.25
$2.27MSell

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Net Insider Buy/Sell (L12M) Ownership

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MIAX Shareholders

What type of owners hold Miami International Holdings Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Murray Stahl9.76%9,260,484$520.07MInsider
T Rowe Price Investment Management Inc4.37%4,145,618$232.82MInstitution
Talal Jassim Albahar3.85%3,650,950$205.04MInsider
Horizon Kinetics Asset Management LLC3.64%3,451,549$193.84MInstitution
Susquehanna International Group LLP3.47%3,296,346$185.12MInstitution
Thomas P. Gallagher2.35%2,234,237$125.47MInsider
Blackrock Inc2.35%2,232,680$125.39MInstitution
Citadel Advisors LLC1.69%1,607,780$90.29MInstitution
Invesco Ltd1.67%1,585,003$89.01MInstitution
Alyeska Investment Group LP1.53%1,447,454$81.29MInstitution

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MIAX vs Capital Market Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MIAX51.81%18.99%Net SellingNet Buying
BGC40.10%59.90%Net BuyingNet Selling
PIPR83.98%4.13%Net SellingNet Selling
LAZ81.62%11.83%Net SellingNet Selling
MC99.07%0.93%Net SellingNet Selling
View Top Capital Market Stocks

Miami International Holdings Stock Ownership FAQ

Who owns Miami International Holdings?

Miami International Holdings (NYSE: MIAX) is owned by 51.81% institutional shareholders, 18.99% Miami International Holdings insiders, and 29.20% retail investors. Murray Stahl is the largest individual Miami International Holdings shareholder, owning 9.26M shares representing 9.76% of the company. Murray Stahl's Miami International Holdings shares are currently valued at $520.07M.

If you're new to stock investing, here's how to buy Miami International Holdings stock.
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