CompositeGovernment TrackerInsider TradingHedge FundsRed FlagsFinancials

Insider Trading Tracker

MIAX

MIAMI INTERNATIONAL HOLDINGS, INC.
Buys$3.1M20 txns
Sells$72.9M61 txns
Net-$69.8M

Insiders

InsiderRoleHoldingsBuy $Sell $Net $
Thomas P. GallagherChairman & CEO, Director1,423,275$276,000$30,306,823-$30,030,823
Douglas M. Schafer JREVP and CIO387,414$10,404,480-$10,404,480
Barbara J. ComlyEVP, GC & Corporate Secretary839,564$8,178,040-$8,178,040
Murray StahlDirector4,633,842$2,279,465$7,145,941-$4,866,476
Shelly BrownEVP, Chief Strategy Officer353,990$4,294,858-$4,294,858
Lance EmmonsEVP and CFO86,538$126$3,471,650-$3,471,524
Harish JayabalanEVP, CISO and CRO78,065$57,500$2,562,017-$2,504,517
Edward DeitzelEVP, CRO, CCO MIAX Exchanges119,601$2,300$2,468,081-$2,465,781
Kurt M. EckertDirector149,612$2,224,532-$2,224,532
Cynthia SchwarzkopfDirector88,545$1,237,985-$1,237,985
Judson Gray TeekellDirector72,251$647,610-$647,610
Mark I. MassadDirector10,737$184,000$184,000
Lisa MooreDirector12,737$126,500$126,500
John SmollenEVP, New Product Development178,212$115,000$115,000
Jamil NazaraliDirector2,500$57,500$57,500
Kenneth W. LozierDirector8,237$23,000$23,000
Paul StahlinDirector42,143$23,000$23,000

Transaction History

DateInsiderSideSharesPriceValueHoldings After% of Position
2026-08-19Thomas P. GallagherSELL149,700$41.13$6,157,1611,423,27510%
2026-08-17Cynthia SchwarzkopfSELL5,000$42.85$214,25088,5455%
2026-08-17Lance EmmonsSELL35,000$42.83$1,499,05086,53829%
2026-08-04Kurt M. EckertSELL1,063$45.80$48,685149,6121%
2026-08-04Judson Gray TeekellSELL3,000$45.79$137,37072,2514%
2026-08-04Harish JayabalanSELL20,000$45.90$918,00078,06520%
2026-08-04Barbara J. ComlySELL44,445$45.69$2,030,692882,9845%
2026-08-04Edward DeitzelSELL11,000$45.78$503,580119,6018%
2026-08-04Douglas M. Schafer JRSELL48,000$45.71$2,194,080387,41411%
2026-08-04Thomas P. GallagherSELL48,334$45.69$2,208,3801,723,2753%
2026-07-15Cynthia SchwarzkopfSELL5,000$42.00$210,00088,5455%
2026-07-13Barbara J. ComlySELL28,000$41.98$1,175,440882,9843%
2026-07-13Thomas P. GallagherSELL70,000$42.52$2,976,4001,723,2754%
2026-07-07Thomas P. GallagherSELL28,228$42.27$1,193,1981,723,2752%
2026-07-06Thomas P. GallagherSELL41,772$42.09$1,758,1831,723,2752%
2026-07-06Harish JayabalanSELL20,000$42.12$842,40078,06520%
2026-07-06Edward DeitzelSELL11,000$42.04$462,440119,6018%
2026-07-06Shelly BrownSELL16,000$42.13$674,080353,9904%
2026-07-02Judson Gray TeekellSELL3,000$40.00$120,00075,2514%
2026-07-02Kurt M. EckertSELL5,250$39.35$206,588149,6123%
2026-07-02Barbara J. ComlySELL28,000$41.22$1,154,160882,9843%
2026-07-02Douglas M. Schafer JRSELL48,000$41.22$1,978,560387,41411%
2026-06-15Shelly BrownSELL4,714$44.23$208,500316,7141%
2026-06-11Cynthia SchwarzkopfSELL19,500$41.73$813,73581,30819%
2026-06-09Harish JayabalanSELL9,783$40.04$391,71173,40512%
2026-06-08Harish JayabalanSELL10,217$40.12$409,90673,40512%
2026-06-02Judson Gray TeekellSELL3,000$42.78$128,34071,0144%
2026-06-02Kurt M. EckertSELL5,250$42.76$224,490142,3754%
2026-06-02Barbara J. ComlySELL28,000$42.85$1,199,800843,8443%
2026-06-02Edward DeitzelSELL11,000$42.16$463,760116,2219%
2026-06-02Douglas M. Schafer JRSELL48,000$42.84$2,056,320396,68111%
2026-06-02Shelly BrownSELL16,000$42.12$673,920325,0475%
2026-06-02Thomas P. GallagherSELL70,000$42.36$2,965,2001,723,2754%
2026-05-15Lance EmmonsSELL35,000$56.36$1,972,60084,26229%
2026-05-05Thomas P. GallagherSELL15,771$47.92$755,7461,723,2751%
2026-05-04Thomas P. GallagherSELL54,229$47.26$2,562,8631,723,2753%
2026-05-04Edward DeitzelSELL11,000$47.28$520,080116,2219%
2026-05-04Shelly BrownSELL16,000$47.28$756,480325,0475%
2026-05-04Judson Gray TeekellSELL3,000$47.30$141,90056,3385%
2026-05-04Douglas M. Schafer JRSELL48,000$47.25$2,268,000396,68111%
2026-05-04Kurt M. EckertSELL5,625$47.29$266,006142,3754%
2026-05-04Barbara J. ComlySELL28,000$47.26$1,323,280843,8443%
2026-04-15Thomas P. GallagherSELL70,001$43.36$3,035,2431,827,3994%
2026-04-15Thomas P. GallagherSELL104,124$43.36$4,514,8171,723,2756%
2026-04-15Thomas P. GallagherSELL49,900$43.68$2,179,632485,9639%
2026-04-15Barbara J. ComlySELL29,667$43.64$1,294,668843,8443%
2026-04-08Shelly BrownSELL16,434$42.08$691,543325,0475%
2026-04-08Edward DeitzelSELL7,572$42.02$318,175116,2216%
2026-04-07Edward DeitzelSELL762$42.00$32,004116,2211%
2026-04-07Edward DeitzelSELL4,001$42.00$168,042116,2213%
2026-04-07Shelly BrownSELL900$42.00$37,800325,0470%
2026-04-07Shelly BrownSELL900$42.00$37,800324,1470%
2026-04-06Shelly BrownSELL2,357$41.33$97,415325,0471%
2026-04-06Shelly BrownSELL2,357$41.33$97,415325,0471%
2026-04-02Judson Gray TeekellSELL2,700$40.00$108,00059,3384%
2026-03-25Judson Gray TeekellSELL300$40.00$12,00062,0380%
2026-03-23Shelly BrownSELL25,932$39.33$1,019,906299,1978%
2026-03-19Kurt M. EckertSELL37,917$39.00$1,478,763142,37521%
2026-03-17Douglas M. Schafer JRSELL48,000$39.74$1,907,520396,68111%
2026-03-05Murray StahlBUY7,200$43.08$310,1764,633,8420%
2026-03-04Murray StahlBUY7,200$43.38$312,3364,626,6420%
2026-03-04Murray StahlBUY7,200$43.38$312,3364,696,6660%
2026-03-02Murray StahlSELL53,578$40.92$2,192,4124,619,4421%
2026-03-02Murray StahlSELL121,054$40.92$4,953,5304,689,4663%
2025-12-12Murray StahlBUY2,439$41.00$99,9994,560,3640%
2025-10-03Murray StahlBUY2$41.97$844,557,9250%
2025-09-26Murray StahlBUY4$41.76$1674,557,9230%
2025-08-28Murray StahlBUY34,470$36.10$1,244,3674,557,9191%
2025-08-14Lance EmmonsBUY4$31.44$1264
2025-08-13Lisa MooreBUY5,500$23.00$126,5005,500
2025-08-13Harish JayabalanBUY2,500$23.00$57,5006,44363%
2025-08-13Paul StahlinBUY1,000$23.00$23,0001,000
2025-08-13Jamil NazaraliBUY2,500$23.00$57,5002,500
2025-08-13John SmollenBUY5,000$23.00$115,0007,226225%
2025-08-13Edward DeitzelBUY100$23.00$2,30032,1930%
2025-08-13Thomas P. GallagherBUY12,000$23.00$276,00012,000
2025-08-13Kenneth W. LozierBUY1,000$23.00$23,0001,000
2025-08-13Mark I. MassadBUY3,500$23.00$80,5003,500
2025-08-13Mark I. MassadBUY2,500$23.00$57,5002,500
2025-08-13Mark I. MassadBUY1,500$23.00$34,5001,500
2025-08-13Mark I. MassadBUY500$23.00$11,500500