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

Insider buying vs selling

Have Miami International Holdings Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Mark F. RaymondDirector2026-06-1616,000$12.00
$192.00kBuy
Shelly BrownEVP Chief Strategy Officer2026-06-154,714$44.23
$208.50kSell
Paul StahlinDirector2026-06-114,000$12.00
$48.00kBuy
Cynthia SchwarzkopfDirector2026-06-1119,500$12.00
$234.00kBuy
Douglas M. Schafer Jr.EVP and CIO2026-06-1132,565$40.79
$1.33MSell
Paul StahlinDirector2026-06-111,177$40.79
$48.01kSell
Edward DeitzelEVP CRO CCO MIAX Exchanges2026-06-115,939$40.79
$242.25kSell
Shelly BrownEVP Chief Strategy Officer2026-06-113,619$40.79
$147.62kSell
Cynthia SchwarzkopfDirector2026-06-1119,500$41.73
$813.73kSell
Paul StahlinDirector2026-06-097,000$12.00
$84.00kBuy

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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$361.62MInsider
T Rowe Price Investment Management Inc4.37%4,145,618$161.89MInstitution
Talal Jassim Albahar3.85%3,658,187$142.85MInsider
Horizon Kinetics Asset Management LLC3.64%3,451,549$134.78MInstitution
Susquehanna International Group LLP3.47%3,296,346$128.72MInstitution
Thomas P. Gallagher2.60%2,467,214$96.34MInsider
Blackrock Inc2.35%2,232,680$87.19MInstitution
Horizon Kinetics Asset Management LLC2.29%2,170,898$84.77MInsider
Citadel Advisors LLC1.69%1,607,780$62.78MInstitution
Invesco Ltd1.67%1,585,003$61.89MInstitution

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MIAX vs Capital Market Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MIAX52.91%22.32%Net SellingNet Selling
MKTX87.46%12.54%Net SellingNet Selling
PJT80.16%2.84%Net SellingNet Selling
ETOR32.35%6.13%Net SellingNet Selling
CLSK76.99%23.01%Net SellingNet Selling

Miami International Holdings Stock Ownership FAQ

Who owns Miami International Holdings?

Miami International Holdings (NYSE: MIAX) is owned by 52.91% institutional shareholders, 22.32% Miami International Holdings insiders, and 24.78% 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 $378.20M.

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