Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$100K
8,333 shares @ $12
Traded
Sep 3, 2026
Filed
Sep 4, 2026
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Miami International Holdings
MIAX
FinanceSecurity & Commodity
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
222 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $100K Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $99.99K Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $199.99K Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $564K Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $199.99K Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Comly Barbara J. EVP, GC & Corporate Secretary | Sep 4, 2026 2-day lag | Exercise Sep 2, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Comly Barbara J. EVP, GC & Corporate Secretary | Sep 4, 2026 2-day lag | Sale Sep 2, 2026 | $1.8M Filed shares x price | SEC Form 4 View filing | |
| Comly Barbara J. EVP, GC & Corporate Secretary | Sep 4, 2026 2-day lag | Exercise Sep 2, 2026 | $533.34K Filed shares x price | SEC Form 4 View filing | |
| Deitzel Edward EVP, CRO, Cco Miax Exchanges | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Deitzel Edward EVP, CRO, Cco Miax Exchanges | Sep 4, 2026 1-day lag | Exercise Sep 3, 2026 | $132K Filed shares x price | SEC Form 4 View filing | |
| Deitzel Edward EVP, CRO, Cco Miax Exchanges | Sep 4, 2026 1-day lag | Sale Sep 3, 2026 | $464.31K Filed shares x price | SEC Form 4 View filing | |
| Schafer Douglas M. Jr EVP And CIO | Sep 4, 2026 2-day lag | Exercise Sep 2, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Schafer Douglas M. Jr EVP And CIO | Sep 4, 2026 2-day lag | Exercise Sep 2, 2026 | $520.01K Filed shares x price | SEC Form 4 View filing | |
| Schafer Douglas M. Jr EVP And CIO | Sep 4, 2026 2-day lag | Sale Sep 2, 2026 | $1.94M Filed shares x price | SEC Form 4 View filing | |
| Schafer Douglas M. Jr EVP And CIO | Sep 4, 2026 2-day lag | Exercise Sep 2, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Schafer Douglas M. Jr EVP And CIO | Sep 4, 2026 2-day lag | Exercise Sep 2, 2026 | $55.99K Filed shares x price | SEC Form 4 View filing | |
| Teekell Judson Gray Director | Sep 4, 2026 2-day lag | Sale Sep 2, 2026 | $230.56K Filed shares x price | SEC Form 4 View filing | |
| Teekell Judson Gray Director | Sep 4, 2026 2-day lag | Sale Sep 2, 2026 | $122.67K Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Aug 20, 2026 1-day lag | Sale Aug 19, 2026 | $6.16M Filed shares x price | SEC Form 4 View filing | |
| Gallagher Thomas P. Chairman & CEO | Aug 20, 2026 2-day lag | Disposition Aug 18, 2026 | $6.37M Filed shares x price | SEC Form 4 View filing | |
| Comly Barbara J. EVP, GC & Corporate Secretary | Aug 20, 2026 2-day lag | Disposition Aug 18, 2026 | $1.84M Filed shares x price | SEC Form 4 View filing | |
| Schwarzkopf Cynthia Director | Aug 19, 2026 2-day lag | Sale Aug 17, 2026 | $214.25K Filed shares x price | SEC Form 4 View filing | |
| Schwarzkopf Cynthia Director | Aug 19, 2026 2-day lag | Exercise Aug 17, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Schwarzkopf Cynthia Director | Aug 19, 2026 2-day lag | Exercise Aug 17, 2026 | $60K Filed shares x price | SEC Form 4 View filing | |
| Emmons Lance EVP And CFO | Aug 19, 2026 2-day lag | Sale Aug 17, 2026 | $1.5M Filed shares x price | SEC Form 4 View filing |
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$99.99K
4,464 shares @ $22.4
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$0
16,666 shares @ $0
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$199.99K
13,140 shares @ $15.22
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$564K
47,000 shares @ $12
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$0
4,464 shares @ $0
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$0
47,000 shares @ $0
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$199.99K
16,666 shares @ $12
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$0
8,333 shares @ $0
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Exercise
Calculated transaction value
$0
13,140 shares @ $0
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Comly Barbara J.
EVP, GC & Corporate Secretary
Exercise
Calculated transaction value
$0
44,445 shares @ $0
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Comly Barbara J.
EVP, GC & Corporate Secretary
Sale
Calculated transaction value
$1.8M
44,445 shares @ $40.49
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Comly Barbara J.
EVP, GC & Corporate Secretary
Exercise
Calculated transaction value
$533.34K
44,445 shares @ $12
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Deitzel Edward
EVP, CRO, Cco Miax Exchanges
Exercise
Calculated transaction value
$0
11,000 shares @ $0
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Deitzel Edward
EVP, CRO, Cco Miax Exchanges
Exercise
Calculated transaction value
$132K
11,000 shares @ $12
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Deitzel Edward
EVP, CRO, Cco Miax Exchanges
Sale
Calculated transaction value
$464.31K
11,000 shares @ $42.21
Traded
Sep 3, 2026
Filed
Sep 4, 2026
Schafer Douglas M. Jr
EVP And CIO
Exercise
Calculated transaction value
$0
4,666 shares @ $0
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Schafer Douglas M. Jr
EVP And CIO
Exercise
Calculated transaction value
$520.01K
43,334 shares @ $12
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Schafer Douglas M. Jr
EVP And CIO
Sale
Calculated transaction value
$1.94M
48,000 shares @ $40.48
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Schafer Douglas M. Jr
EVP And CIO
Exercise
Calculated transaction value
$0
43,334 shares @ $0
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Schafer Douglas M. Jr
EVP And CIO
Exercise
Calculated transaction value
$55.99K
4,666 shares @ $12
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Teekell Judson Gray
Director
Sale
Calculated transaction value
$230.56K
5,545 shares @ $41.58
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Teekell Judson Gray
Director
Sale
Calculated transaction value
$122.67K
3,000 shares @ $40.89
Traded
Sep 2, 2026
Filed
Sep 4, 2026
Gallagher Thomas P.
Chairman & CEO
Sale
Calculated transaction value
$6.16M
149,700 shares @ $41.13
Traded
Aug 19, 2026
Filed
Aug 20, 2026
Gallagher Thomas P.
Chairman & CEO
Disposition
Calculated transaction value
$6.37M
150,300 shares @ $42.41
Traded
Aug 18, 2026
Filed
Aug 20, 2026
Comly Barbara J.
EVP, GC & Corporate Secretary
Disposition
Calculated transaction value
$1.84M
43,420 shares @ $42.41
Traded
Aug 18, 2026
Filed
Aug 20, 2026
Schwarzkopf Cynthia
Director
Sale
Calculated transaction value
$214.25K
5,000 shares @ $42.85
Traded
Aug 17, 2026
Filed
Aug 19, 2026
Schwarzkopf Cynthia
Director
Exercise
Calculated transaction value
$0
5,000 shares @ $0
Traded
Aug 17, 2026
Filed
Aug 19, 2026
Schwarzkopf Cynthia
Director
Exercise
Calculated transaction value
$60K
5,000 shares @ $12
Traded
Aug 17, 2026
Filed
Aug 19, 2026
Emmons Lance
EVP And CFO
Sale
Calculated transaction value
$1.5M
35,000 shares @ $42.83
Traded
Aug 17, 2026
Filed
Aug 19, 2026