MIAMI INTERNATIONAL HOLDINGS, INC. - Common Stock (MIAX)

Historical Holders for Q3 2025

Symbol
MIAX on NYSE
Type / Class
Equity / Common Stock
Shares outstanding
81,196,538
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
25,501,338
Holdings value
$1,026,412,421
% of all portfolios
0%
Number of holders
114
Number of buys
114
Average buys %
+0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of MIAMI INTERNATIONAL HOLDINGS, INC. - Common Stock (MIAX)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
HORIZON KINETICS ASSET MANAGEMENT LLC 11.7% +9.1% $396,814,791 +$34,261,759 9,499,995 +9.5% HORIZON KINETICS ASSET MANAGEMENT LLC 24 Nov 2025
Gallagher Thomas P. 4.9% -4% 4,036,237 -4.5% Thomas P. Gallagher 26 Aug 2025

Institutional Holders of MIAMI INTERNATIONAL HOLDINGS, INC. - Common Stock (MIAX)

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q3 25,501,338 $1,026,412,421 +$1,026,412,421 $40.26 114