Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| MIAX | Brown Shelly | EVP, Chief Strategy Officer | 09/16/2026 | Verkauf | 38.61 | 21,217 | 819,188 | Form 4 |
| MIAX | Brown Shelly | EVP, Chief Strategy Officer | 09/11/2026 | Steuer-Abgabe | 42.54 | 16,283 | 692,679 | Form 4 |
| MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | 09/03/2026 | Verkauf | 42.21 | 11,000 | 464,310 | Form 4 |
| MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | 09/03/2026 | Optionsausübung | 12.00 | 11,000 | 132,000 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 09/03/2026 | Optionsausübung | 22.40 | 4,464 | 99,994 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 09/03/2026 | Optionsausübung | 15.22 | 13,140 | 199,991 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 09/03/2026 | Optionsausübung | 12.00 | 8,333 | 99,996 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 09/03/2026 | Optionsausübung | 12.00 | 16,666 | 199,992 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 09/03/2026 | Verkauf | 42.43 | 47,000 | 1,994,210 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 09/03/2026 | Optionsausübung | 12.00 | 47,000 | 564,000 | Form 4 |
| MIAX | Comly Barbara J. | EVP, GC & Corporate Secretary | 09/02/2026 | Verkauf | 40.49 | 44,445 | 1,799,578 | Form 4 |
| MIAX | Comly Barbara J. | EVP, GC & Corporate Secretary | 09/02/2026 | Optionsausübung | 12.00 | 44,445 | 533,340 | Form 4 |
| MIAX | Schafer Douglas M. JR | EVP and CIO | 09/02/2026 | Verkauf | 40.48 | 48,000 | 1,943,040 | Form 4 |
| MIAX | Schafer Douglas M. JR | EVP and CIO | 09/02/2026 | Optionsausübung | 12.00 | 4,666 | 55,992 | Form 4 |
| MIAX | Schafer Douglas M. JR | EVP and CIO | 09/02/2026 | Optionsausübung | 12.00 | 43,334 | 520,008 | Form 4 |
| MIAX | Teekell Judson Gray | Director | 09/02/2026 | Verkauf | 40.89 | 3,000 | 122,670 | Form 4 |
| MIAX | Teekell Judson Gray | Director | 09/02/2026 | Verkauf | 41.58 | 5,545 | 230,561 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 08/19/2026 | Verkauf | 41.13 | 149,700 | 6,157,161 | Form 4 |
| MIAX | Comly Barbara J. | EVP, GC & Corporate Secretary | 08/18/2026 | Steuer-Abgabe | 42.41 | 43,420 | 1,841,442 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 08/18/2026 | Steuer-Abgabe | 42.41 | 150,300 | 6,374,223 | Form 4 |
| MIAX | Schwarzkopf Cynthia | Director | 08/17/2026 | Verkauf | 42.85 | 5,000 | 214,250 | Form 4 |
| MIAX | Schwarzkopf Cynthia | Director | 08/17/2026 | Optionsausübung | 12.00 | 5,000 | 60,000 | Form 4 |
| MIAX | Emmons Lance | EVP and CFO | 08/17/2026 | Verkauf | 42.83 | 35,000 | 1,499,050 | Form 4 |
| MIAX | Comly Barbara J. | EVP, GC & Corporate Secretary | 08/04/2026 | Verkauf | 45.69 | 44,445 | 2,030,692 | Form 4 |
| MIAX | Comly Barbara J. | EVP, GC & Corporate Secretary | 08/04/2026 | Optionsausübung | 12.00 | 44,445 | 533,340 | Form 4 |
| MIAX | Eckert Kurt M. | Director | 08/04/2026 | Verkauf | 45.80 | 1,063 | 48,685 | Form 4 |
| MIAX | Eckert Kurt M. | Director | 08/04/2026 | Optionsausübung | 12.00 | 1,063 | 12,756 | Form 4 |
| MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | 08/04/2026 | Verkauf | 45.78 | 11,000 | 503,580 | Form 4 |
| MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | 08/04/2026 | Optionsausübung | 12.00 | 11,000 | 132,000 | Form 4 |
| MIAX | Jayabalan Harish | EVP, CISO and CRO | 08/04/2026 | Verkauf | 45.90 | 20,000 | 918,000 | Form 4 |
| MIAX | Jayabalan Harish | EVP, CISO and CRO | 08/04/2026 | Optionsausübung | 15.22 | 5,832 | 88,763 | Form 4 |
| MIAX | Jayabalan Harish | EVP, CISO and CRO | 08/04/2026 | Optionsausübung | 12.00 | 14,168 | 170,016 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 08/04/2026 | Verkauf | 45.69 | 48,334 | 2,208,380 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 08/04/2026 | Optionsausübung | 12.00 | 48,334 | 580,008 | Form 4 |
| MIAX | Schafer Douglas M. JR | EVP and CIO | 08/04/2026 | Verkauf | 45.71 | 48,000 | 2,194,080 | Form 4 |
| MIAX | Schafer Douglas M. JR | EVP and CIO | 08/04/2026 | Optionsausübung | 12.00 | 48,000 | 576,000 | Form 4 |
| MIAX | Teekell Judson Gray | Director | 08/04/2026 | Verkauf | 45.79 | 3,000 | 137,370 | Form 4 |
| MIAX | Schwarzkopf Cynthia | Director | 07/15/2026 | Verkauf | 42.00 | 5,000 | 210,000 | Form 4 |
| MIAX | Schwarzkopf Cynthia | Director | 07/15/2026 | Optionsausübung | 12.00 | 5,000 | 60,000 | Form 4 |
| MIAX | Comly Barbara J. | EVP, GC & Corporate Secretary | 07/13/2026 | Verkauf | 41.98 | 28,000 | 1,175,440 | Form 4 |
| MIAX | Comly Barbara J. | EVP, GC & Corporate Secretary | 07/13/2026 | Optionsausübung | 12.00 | 28,000 | 336,000 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 07/13/2026 | Verkauf | 42.52 | 70,000 | 2,976,400 | Form 4 |
| MIAX | Gallagher Thomas P. | Chairman & CEO | 07/13/2026 | Optionsausübung | 12.00 | 70,000 | 840,000 | Form 4 |
| MIAX | Brown David A | Director | 07/08/2026 | Steuer-Abgabe | 43.72 | 171 | 7,476 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).