MIAMI INTERNATIONAL HOLDINGS (MIAX) Stock Ownership

NYSE:MIAX • US59356Q1085

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45.49 USD
+0.23 (+0.51%)
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MIAX Ownership information

MIAX Ownership Chart.MIAX Ownership Chart: showing Insider, Institutional ownership and shares available to the public.MIAX Ownership.InsiderInstitutionalPublic



Shares Outstanding92.59M
Float83.75M
Float Short Interest Percentage4.05%
Owners (insider)9.56%
Owners (institutional)41.44%
Owners (insider) change-4.92%
Owners (institutional) change0.33%
MIAX Institutional Ownership HistoryMIAX Institutional Ownership HistoryMIAX Institutional Ownership History Sep 2025 Dec 2025 Mar 2026 10M 20M 30M
MIAX Historical Insider Transactions ChartMIAX Historical Insider Buy and Sell Transactions ChartMIAX Historical Insider Transactions May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Apr 2026 0 500K 1M 1.5M 2M
DateNameTypeSharesPriceAmount
Apr 15, 2026Gallagher Thomas P.Option Excercise7000112.00$ 840,012.00
Apr 15, 2026Gallagher Thomas P.Open Market Sale22402543.43$ 9,729,692.00
Apr 15, 2026Comly Barbara J.Option Excercise2966712.00$ 356,004.00
Apr 15, 2026Comly Barbara J.Open Market Sale2966743.64$ 1,294,667.88
Apr 9, 2026Beckelman JohnOption Excercise866712.00$ 104,004.00
Apr 8, 2026Brown ShellyOption Excercise1643412.00$ 197,208.00
Apr 8, 2026Brown ShellyOpen Market Sale1643442.08$ 691,542.72
Apr 7, 2026Deitzel EdwardOption Excercise1233512.00$ 148,020.00
Apr 7, 2026Deitzel EdwardOpen Market Sale1233542.01$ 518,221.44
Apr 7, 2026Brown ShellyOption Excercise90012.00$ 10,800.00
Apr 6, 2026Brown ShellyOpen Market Sale325741.52$ 135,214.81
Apr 6, 2026Brown ShellyOpen Market Sale325741.52$ 135,214.81
Apr 2, 2026Teekell Judson GrayOpen Market Sale270040.00$ 108,000.00
Mar 30, 2026Smollen JohnOption Excercise36237.50$ 13,575.00
Mar 30, 2026Brown ShellyOption Excercise180937.50$ 67,837.50
Mar 30, 2026Brown ShellyOption Excercise3001616.66$ 499,947.14
Mar 30, 2026Comly Barbara J.Option Excercise144837.50$ 54,300.00
Mar 30, 2026Deitzel EdwardOption Excercise70737.50$ 26,512.50
Mar 30, 2026Gallagher Thomas P.Option Excercise2087537.50$ 782,812.50
Mar 30, 2026Emmons LanceOption Excercise835037.50$ 313,125.00
Mar 25, 2026Teekell Judson GrayOpen Market Sale30040.00$ 12,000.00
Mar 23, 2026Brown ShellyOpen Market Sale2593239.33$ 1,019,905.56
Mar 19, 2026Eckert Kurt M.Option Excercise1291712.00$ 155,004.00
Mar 19, 2026Eckert Kurt M.Open Market Sale3791739.00$ 1,478,763.00
Mar 17, 2026Schafer Douglas M. JROption Excercise4800012.00$ 576,000.00
Mar 17, 2026Schafer Douglas M. JROpen Market Sale4800039.74$ 1,907,520.00
Mar 9, 2026Comly Barbara J.Option Excercise3333212.00$ 399,984.00
Mar 5, 2026STAHL MURRAYOpen Market Purchase720043.08$ 310,176.00
Mar 5, 2026HORIZON KINETICS ASSET MANAGEMENT LLCOpen Market Purchase720043.08$ 310,176.00
Mar 4, 2026STAHL MURRAYOpen Market Purchase720043.38$ 312,336.00
Mar 4, 2026HORIZON KINETICS ASSET MANAGEMENT LLCOpen Market Purchase720043.38$ 312,336.00
Mar 4, 2026STAHL MURRAYOpen Market Purchase720043.38$ 312,336.00
Mar 4, 2026HORIZON KINETICS ASSET MANAGEMENT LLCOpen Market Purchase720043.38$ 312,336.00
Mar 2, 2026STAHL MURRAYOther Aquisition25015619.76$ 4,942,353.00
Mar 2, 2026HORIZON KINETICS ASSET MANAGEMENT LLCOther Aquisition25015619.76$ 4,942,353.00
Mar 2, 2026STAHL MURRAYOpen Market Sale12105440.92$ 4,953,529.68
Mar 2, 2026HORIZON KINETICS ASSET MANAGEMENT LLCOpen Market Sale12105440.92$ 4,953,529.68
Mar 2, 2026STAHL MURRAYOther Aquisition11265619.46$ 2,192,353.00
Mar 2, 2026HORIZON KINETICS ASSET MANAGEMENT LLCOther Aquisition11265619.46$ 2,192,353.00
Mar 2, 2026STAHL MURRAYOpen Market Sale5357840.92$ 2,192,411.76
Mar 2, 2026HORIZON KINETICS ASSET MANAGEMENT LLCOpen Market Sale5357840.92$ 2,192,411.76
Feb 10, 2026Gallagher Thomas P.Option Excercise5010041.33$ 2,070,633.00
Feb 10, 2026Schafer Douglas M. JROption Excercise10855041.33$ 4,486,371.50
Dec 23, 2025Gallagher Thomas P.Other Disposition2000$ 0.00
Dec 16, 2025Brown ShellyOption Excercise3333212.00$ 399,984.00
Dec 16, 2025Emmons LanceOption Excercise3345614.94$ 499,964.40
Dec 12, 2025STAHL MURRAYOpen Market Purchase243941.00$ 99,999.00
Dec 12, 2025HORIZON KINETICS ASSET MANAGEMENT LLCOpen Market Purchase243941.00$ 99,999.00
Oct 3, 2025STAHL MURRAYOpen Market Purchase241.97$ 83.94
Oct 3, 2025HORIZON KINETICS ASSET MANAGEMENT LLCOpen Market Purchase241.97$ 83.94
Sep 26, 2025STAHL MURRAYOpen Market Purchase441.76$ 167.04
Sep 26, 2025HORIZON KINETICS ASSET MANAGEMENT LLCOpen Market Purchase441.76$ 167.04
Sep 11, 2025Smollen JohnOption Excercise15000012.00$ 1,800,000.00
Sep 11, 2025Smollen JohnOption Excercise5205437.39$ 1,946,299.06
Sep 10, 2025Brown ShellyOption Excercise1628336.81$ 599,377.23
Sep 9, 2025Deitzel EdwardOption Excercise7916612.00$ 949,992.00
Sep 9, 2025Deitzel EdwardOption Excercise3809037.30$ 1,420,757.00
Sep 9, 2025Jayabalan HarishOption Excercise2500012.00$ 300,000.00
Sep 9, 2025Jayabalan HarishOption Excercise198037.30$ 73,854.00
Aug 26, 2025Brown ShellyOption Excercise1104733.90$ 374,493.30
Aug 26, 2025Gallagher Thomas P.Option Excercise19222033.90$ 6,516,258.00
Aug 15, 2025Emmons LanceOther Aquisition57646$ 0.00
Aug 15, 2025Stahlin PaulOther Aquisition24083$ 0.00
Aug 15, 2025Schafer Douglas M. JROther Aquisition387796$ 0.00
Aug 15, 2025Smollen JohnOther Aquisition164839$ 0.00
Aug 15, 2025Al-Bahar Talal JassimOther Aquisition238462$ 0.00
Aug 15, 2025Brown ShellyOther Aquisition200975$ 0.00
Aug 15, 2025Deitzel EdwardOther Aquisition49694$ 0.00
Aug 15, 2025Jayabalan HarishOther Aquisition43942$ 0.00
Aug 15, 2025Comly Barbara J.Other Aquisition231117$ 0.00
Aug 15, 2025Eckert Kurt M.Other Aquisition46875$ 0.00
Aug 15, 2025Gallagher Thomas P.Other Aquisition709858$ 0.00
Aug 15, 2025Teekell Judson GrayOther Aquisition129373$ 0.00
Aug 15, 2025Raymond Mark F.Other Aquisition43827$ 0.00
Aug 15, 2025Schwarzkopf CynthiaOther Aquisition81308$ 0.00
Aug 14, 2025Emmons LanceOpen Market Purchase431.44$ 125.76