Q3 2025 13F Holders as of 9/30/2025
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Type / Class
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Equity / Common Stock, $0.001 par value per share (the "Common Stock")
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Shares outstanding
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82.4M
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Number of holders
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114
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Total 13F shares, excl. options
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25.5M
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Shares change
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+25.5M
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Total reported value, excl. options
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$1.03B
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Value change
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+$1.03B
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Put/Call ratio
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0.59
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Number of buys
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114
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Price
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$40.26
Significant Holders of MIAMI INTERNATIONAL HOLDINGS, INC. - Common Stock, $0.001 par value per share (the "Common Stock") (MIAX) as of Q3 2025
123 filings reported holding MIAX - MIAMI INTERNATIONAL HOLDINGS, INC. - Common Stock, $0.001 par value per share (the "Common Stock") as of Q3 2025.
MIAMI INTERNATIONAL HOLDINGS, INC. - Common Stock, $0.001 par value per share (the "Common Stock") (MIAX) has 114 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions hold a total of 25.5M shares
of 82.4M outstanding shares and own 30.96% of the company stock.
Largest 10 shareholders include SUSQUEHANNA INTERNATIONAL GROUP, LLP (3.28M shares), T. Rowe Price Investment Management, Inc. (2.43M shares), VANGUARD GROUP INC (1.38M shares), HORIZON KINETICS ASSET MANAGEMENT LLC (1.38M shares), Alyeska Investment Group, L.P. (1.27M shares), CITADEL ADVISORS LLC (975K shares), JPMORGAN CHASE & CO (812K shares), North Reef Capital Management LP (726K shares), BlackRock, Inc. (708K shares), and Caldwell Investment Management Ltd. (664K shares).
This table shows the top 114 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
| Investor |
Option |
Weight % |
Change % |
Value $ |
* Price $ |
Shares |
Share Change |
Activity |
Report Period |
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.