Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-04-15 Sale | 2026-04-17 4:17 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Gallagher Thomas P. Chairman & CEO | 224,025 | $43.43 | $9,729,692 | 2,489,238 (Indirect Direct) | View |
| 2026-04-15 Sale | 2026-04-17 4:15 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Comly Barbara J. EVP, GC & Corporate Secretary | 29,667 | $43.64 | $1,294,668 | 955,844 (Direct) | View |
| 2026-04-08 Sale | 2026-04-09 4:20 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 16,434 | $42.08 | $691,543 | 373,047 (Direct) | View |
| 2026-04-07 Sale | 2026-04-09 4:15 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | 12,335 | $42.01 | $518,221 | 153,126 (Direct) | View |
| 2026-04-06 Sale(A) | 2026-04-09 4:13 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 3,257 | $41.52 | $135,215 | 389,481 (Direct) | View |
| 2026-04-06 Sale | 2026-04-08 4:19 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 3,257 | $41.52 | $135,215 | 324,147 (Direct) | View |
| 2026-04-02 Sale | 2026-04-03 08:48 am | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Teekell Judson Gray Director | 2,700 | $40 | $108,000 | 59,338 (Direct) | View |
| 2026-03-25 Sale | 2026-03-26 4:32 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Teekell Judson Gray Director | 300 | $40 | $12,000 | 62,038 (Direct) | View |
| 2026-03-23 Sale | 2026-03-24 5:28 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 25,932 | $39.33 | $1,019,906 | 299,197 (Direct) | View |
| 2026-03-19 Sale | 2026-03-20 4:48 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Eckert Kurt M. Director | 37,917 | $39 | $1,478,763 | 142,375 (Direct) | View |
| 2026-03-17 Sale | 2026-03-18 4:23 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Schafer Douglas M. JR EVP and CIO | 48,000 | $39.74 | $1,907,520 | 498,681 (Direct) | View |
| 2026-03-05 Purchase | 2026-03-06 5:57 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 7,200 | $43.08 | $310,176 | 4,668,173 (Indirect Direct) | View |
| 2026-03-04 Purchase(A) | 2026-03-06 5:52 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 7,200 | $43.38 | $312,336 | 4,660,973 (Indirect Direct) | View |
| 2026-03-02 Sale(A) | 2026-03-06 4:12 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 53,578 | $40.92 | $2,192,412 | 4,653,773 (Indirect Direct) | View |
| 2026-03-04 Purchase | 2026-03-05 2:44 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 7,200 | $43.38 | $312,336 | 4,730,997 (Indirect Direct) | View |
| 2026-03-02 Sale | 2026-03-04 3:22 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 121,054 | $40.92 | $4,953,530 | 4,723,797 (Indirect Direct) | View |
| 2025-12-12 Purchase | 2025-12-15 3:53 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 2,439 | $41 | $99,999 | 4,707,351 (Indirect Direct) | View |
| 2025-10-03 Purchase | 2025-10-06 4:20 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 2 | $41.97 | $84 | 4,704,912 (Indirect Direct) | View |
| 2025-09-26 Purchase | 2025-09-30 3:17 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 4 | $41.76 | $167 | 4,704,910 (Indirect Direct) | View |
| 2025-08-28 Purchase | 2025-09-30 2:28 pm | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 34,470 | $36.1 | $1,244,367 | 4,704,906 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-04-15 Exercise | 2026-04-17 4:17 pm | N/A 2026-08-02 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Gallagher Thomas P. Chairman & CEO | 70,001 | $0 | 2,489,238 (Indirect) | View |
| 2026-04-15 Exercise | 2026-04-17 4:17 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Gallagher Thomas P. Chairman & CEO | 70,001 | $12 | 2,489,238 (Indirect) | View |
| 2026-04-15 Exercise | 2026-04-17 4:15 pm | N/A 2026-08-02 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Comly Barbara J. EVP, GC & Corporate Secretary | 29,667 | $0 | 955,844 (Direct) | View |
| 2026-04-15 Exercise | 2026-04-17 4:15 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Comly Barbara J. EVP, GC & Corporate Secretary | 29,667 | $12 | 955,844 (Direct) | View |
| 2026-04-09 Exercise | 2026-04-10 6:41 pm | N/A 2026-06-19 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Beckelman John Director | 8,667 | $0 | 8,667 (Direct) | View |
| 2026-04-09 Exercise | 2026-04-10 6:41 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Beckelman John Director | 8,667 | $12 | 8,667 (Direct) | View |
| 2026-04-08 Exercise | 2026-04-09 4:20 pm | N/A 2026-08-02 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 16,434 | $0 | 373,047 (Direct) | View |
| 2026-04-08 Exercise | 2026-04-09 4:20 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 16,434 | $12 | 373,047 (Direct) | View |
| 2026-04-07 Exercise | 2026-04-09 4:15 pm | N/A 2026-08-02 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | 12,335 | $0 | 153,126 (Direct) | View |
| 2026-04-07 Exercise | 2026-04-09 4:15 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | 12,335 | $12 | 153,126 (Direct) | View |
| 2026-04-07 Exercise(A) | 2026-04-09 4:13 pm | N/A 2026-08-02 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 900 | $0 | 389,481 (Direct) | View |
| 2026-04-07 Exercise(A) | 2026-04-09 4:13 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 900 | $12 | 389,481 (Direct) | View |
| 2026-03-30 Tax Withholding | 2026-04-01 4:48 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Smollen John EVP, New Product Development | 362 | $37.5 | 170,757 (Direct) | View |
| 2026-03-30 Exercise | 2026-04-01 4:45 pm | N/A 2029-07-31 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 30,016 | $0 | 327,404 (Direct) | View |
| 2026-03-30 Exercise | 2026-04-01 4:45 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 6,195 | $16.14 | 327,404 (Direct) | View |
| 2026-03-30 Exercise | 2026-04-01 4:45 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 3,878 | $25.78 | 327,404 (Direct) | View |
| 2026-03-30 Tax Withholding | 2026-04-01 4:45 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 1,809 | $37.5 | 327,404 (Direct) | View |
| 2026-03-30 Exercise | 2026-04-01 4:45 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 5,040 | $19.84 | 327,404 (Direct) | View |
| 2026-03-30 Exercise | 2026-04-01 4:45 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 8,333 | $12 | 327,404 (Direct) | View |
| 2026-03-30 Exercise | 2026-04-01 4:45 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 6,570 | $15.22 | 327,404 (Direct) | View |
| 2026-03-30 Tax Withholding | 2026-04-01 4:43 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Comly Barbara J. EVP, GC & Corporate Secretary | 1,448 | $37.5 | 843,844 (Direct) | View |
| 2026-03-30 Tax Withholding | 2026-04-01 4:43 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | 707 | $37.5 | 116,221 (Direct) | View |
| 2026-03-30 Tax Withholding | 2026-04-01 4:42 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Gallagher Thomas P. Chairman & CEO | 20,875 | $37.5 | 1,827,399 (Indirect) | View |
| 2026-03-30 Tax Withholding | 2026-04-01 4:42 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Emmons Lance EVP and CFO | 8,350 | $37.5 | 119,262 (Direct) | View |
Ownership | 2026-03-31 4:28 pm | N/A 2033-12-28 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Sommers Jill E. Director | 0 | $0 | 19,807 (Direct) | View |
| 2026-03-19 Exercise | 2026-03-20 4:48 pm | N/A 2026-06-19 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Eckert Kurt M. Director | 12,917 | $12 | 142,375 (Direct) | View |
| 2026-03-17 Exercise | 2026-03-18 4:23 pm | N/A 2026-08-02 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Schafer Douglas M. JR EVP and CIO | 48,000 | $0 | 498,681 (Direct) | View |
| 2026-03-17 Exercise | 2026-03-18 4:23 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Schafer Douglas M. JR EVP and CIO | 48,000 | $12 | 498,681 (Direct) | View |
| 2026-03-09 Exercise | 2026-03-10 4:40 pm | N/A 2026-08-02 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Comly Barbara J. EVP, GC & Corporate Secretary | 33,332 | $0 | 845,292 (Direct) | View |
| 2026-03-09 Exercise | 2026-03-10 4:40 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Comly Barbara J. EVP, GC & Corporate Secretary | 24,999 | $12 | 845,292 (Direct) | View |
| 2026-03-02 Exercise(A) | 2026-03-06 4:12 pm | 2025-08-13 2026-04-08 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 112,656 | $0 | 4,653,773 (Indirect) | View |
| 2026-03-02 Exercise(A) | 2026-03-06 4:12 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 91,366 | $20.5 | 4,653,773 (Indirect) | View |
| 2026-03-02 Exercise(A) | 2026-03-06 4:12 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 21,290 | $15 | 4,653,773 (Indirect) | View |
| 2026-03-02 Exercise | 2026-03-04 3:22 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 137,500 | $20 | 4,723,797 (Indirect) | View |
| 2026-03-02 Exercise | 2026-03-04 3:22 pm | 2025-08-13 2026-04-08 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 250,156 | $0 | 4,723,797 (Indirect) | View |
| 2026-03-02 Exercise | 2026-03-04 3:22 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 91,366 | $20.5 | 4,723,797 (Indirect) | View |
| 2026-03-02 Exercise | 2026-03-04 3:22 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | STAHL MURRAY HORIZON KINETICS ASSET MANAGEMENT LLC Director | 21,290 | $15 | 4,723,797 (Indirect) | View |
| 2026-02-18 Tax Withholding | 2026-02-20 4:33 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Schafer Douglas M. JR EVP and CIO | 32,565 | $40.89 | 396,681 (Direct) | View |
| 2026-02-18 Tax Withholding | 2026-02-20 4:31 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | 6,035 | $40.89 | 116,928 (Direct) | View |
| 2026-02-18 Tax Withholding | 2026-02-20 4:31 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 19,902 | $40.89 | 325,129 (Direct) | View |
| 2026-02-10 Tax Withholding | 2026-02-12 4:40 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Schafer Douglas M. JR EVP and CIO | 108,550 | $41.33 | 429,246 (Direct) | View |
| 2026-02-10 Tax Withholding | 2026-02-12 4:33 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Gallagher Thomas P. Chairman & CEO | 50,100 | $41.33 | 535,863 (Direct) | View |
| 2025-12-23 Gift | 2025-12-29 08:46 am | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Gallagher Thomas P. Chairman & CEO | 2,000 | $0 | 585,963 (Direct) | View |
| 2025-12-16 Exercise | 2025-12-17 4:23 pm | N/A 2026-08-02 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 33,332 | $0 | 345,031 (Direct) | View |
| 2025-12-16 Exercise | 2025-12-17 4:23 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Brown Shelly EVP, Chief Strategy Officer | 24,999 | $12 | 345,031 (Direct) | View |
| 2025-12-16 Exercise | 2025-12-17 4:22 pm | N/A 2030-03-05 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Emmons Lance EVP and CFO | 33,456 | $0 | 132,652 (Direct) | View |
| 2025-12-16 Exercise | 2025-12-17 4:22 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Emmons Lance EVP and CFO | 6,195 | $16.14 | 132,652 (Direct) | View |
| 2025-12-16 Exercise | 2025-12-17 4:22 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Emmons Lance EVP and CFO | 22,221 | $13.5 | 132,652 (Direct) | View |
| 2025-12-16 Exercise | 2025-12-17 4:22 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Emmons Lance EVP and CFO | 5,040 | $19.84 | 132,652 (Direct) | View |
| 2025-09-11 Exercise | 2025-09-15 5:14 pm | N/A 2025-09-17 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Smollen John EVP Traded Products & Relation | 150,000 | $0 | 166,119 (Direct) | View |
| 2025-09-11 Tax Withholding | 2025-09-15 5:14 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Smollen John EVP Traded Products & Relation | 52,054 | $37.39 | 166,119 (Direct) | View |
| 2025-09-11 Exercise | 2025-09-15 5:14 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Smollen John EVP Traded Products & Relation | 150,000 | $12 | 166,119 (Direct) | View |
| 2025-09-09 Exercise | 2025-09-11 4:11 pm | N/A 2025-09-17 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | 79,166 | $0 | 122,963 (Direct) | View |
| 2025-09-09 Tax Withholding | 2025-09-11 4:11 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | 38,090 | $37.3 | 122,963 (Direct) | View |
| 2025-09-09 Exercise | 2025-09-11 4:11 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | 79,166 | $12 | 122,963 (Direct) | View |
| 2025-09-09 Exercise | 2025-09-11 4:09 pm | N/A 2025-09-17 | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Jayabalan Harish EVP, CISO and CRO | 25,000 | $0 | 73,405 (Direct) | View |
| 2025-09-09 Tax Withholding | 2025-09-11 4:09 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Jayabalan Harish EVP, CISO and CRO | 1,980 | $37.3 | 73,405 (Direct) | View |
| 2025-09-09 Exercise | 2025-09-11 4:09 pm | N/A N/A | MIAMI INTERNATIONAL HOLDINGS INC. | MIAX | Jayabalan Harish EVP, CISO and CRO | 25,000 | $12 | 73,405 (Direct) | View |