Companies / Miami International Holdings, Inc.

Miami International Holdings, Inc.

NYSE: MIAXCIK 1438472PRINCETON, NJ

Financials · FY2025

Revenue$1.36B
Net income$-70.03M
Total debt$1.51M
Cash$660.46M
Diluted EPS$-1.00
Shares outstanding99.2M

Ownership

99.2M shares outstanding · as of Jul 31, 2026
11.8%Insiders
Ownership
Insiders11.83%11,736,119
10%+ / strategic2.19%2,170,898
Institutions43.40%43,066,231
Public float42.59%42,257,650

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 11

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Insider% of sharesShares
Stahl MurrayDirector
9.40%9,330,508
Horizon Kinetics Asset Management LLC10% owner
2.19%2,170,898
Comly Barbara J.EVP, GC & Corporate Secretary
0.85%845,292
Gallagher Thomas P.CEOChairman & CEO · Director
0.54%535,863
Schafer Douglas M. JREVP and CIO
0.40%396,681
Brown ShellyEVP, Chief Strategy Officer
0.30%299,197
Eckert Kurt M.Director
0.14%142,375
Deitzel EdwardEVP, CRO, CCO MIAX Exchanges
0.12%116,928
Teekell Judson GrayDirector
0.06%62,038
Brown David aDirector
<0.01%7,237

Institutional holders 176

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HolderValue% of shares
BlackRock, Inc.$188.47M5.11%
Susquehanna International Group, LLP$145.79M3.31%
Horizon Kinetics Asset Management LLC$134.33M3.48%
Vanguard Group Inc$85.58M1.94%
American Century Companies Inc$64.28M1.46%
Alyeska Investment Group, L.P.$57.08M1.30%
Invesco Ltd.$56.76M1.29%
North Reef Capital Management LP$56.14M1.27%
State Street Corporation$53.25M1.44%
Adage Capital Partners Gp, L.L.C.$48.53M1.26%

Activity

Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).
DateActorActionSecurityValueShares ΔPosition afterImpact
Q2 2026
as of
BlackRock, Inc.
13F manager
AddCommon Stock$123.31M+3.3M
+189.23%
5,071,754
5.11% of shares
high
Q1 2026
as of
Horizon Kinetics Asset Management LLC
13F manager
AddCommon Stock$63.51M+1.6M
+89.67%
3,451,549
3.48% of shares
high
Q2 2026
as of
State Street Corporation
13F manager
AddCommon Stock$31.83M+857K
+148.60%
1,432,894
1.44% of shares
medium
Q1 2026
as of
Two Sigma Investments, LP
13F manager
AddCommon Stock$29.32M+753K
+536.86%
893,718
0.90% of shares
medium
Q1 2026
as of
BNP Paribas Financial Markets
13F manager
AddCommon Stock$14.85M+381K
+199.68%
572,456
0.58% of shares
medium
Q1 2026
as of
Adage Capital Partners Gp, L.L.C.
13F manager
AddCommon Stock$14.23M+366K
+41.49%
1,246,999
1.26% of shares
medium
Q1 2026
as of
D. E. Shaw & Co., Inc.
13F manager
NewCommon Stock$12.48M+321K
320,762
0.32% of shares
medium
Q1 2026
as of
Norges Bank
13F manager
ExitCommon Stock$-12.30M-277K
-100.00%
0
medium

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
MIAXCommon StockEquity59356Q108BBG004RKDWL9