MIAMI INTERNATIONAL HOLDINGS INC. (MIAX) - Insider Trading & Ownership

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>>
Time period
Insider Trading Transactions for MIAMI INTERNATIONAL HOLDINGS INC.
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Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2026-06-15
Sale
2026-06-17
4:08 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBrown Shelly
EVP, Chief Strategy Officer
4,714$44.23$208,500316,714
(Direct)
View
2026-06-11
Sale
2026-06-12
4:15 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchwarzkopf Cynthia
Director
19,500$41.73$813,73581,308
(Direct)
View
2026-06-08
Sale
2026-06-10
4:29 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXJayabalan Harish
EVP, CISO and CRO
20,000$40.08$801,61784,856
(Direct)
View
2026-06-02
Sale
2026-06-04
4:55 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXTeekell Judson Gray
Director
3,000$42.78$128,34071,014
(Direct)
View
2026-06-02
Sale
2026-06-04
4:52 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXEckert Kurt M.
Director
5,250$42.76$224,490148,688
(Direct)
View
2026-06-02
Sale
2026-06-04
4:46 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXComly Barbara J.
EVP, GC & Corporate Secretary
28,000$42.85$1,199,800899,844
(Direct)
View
2026-06-02
Sale
2026-06-04
4:44 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXDeitzel Edward
EVP, CRO, CCO MIAX Exchanges
11,000$42.16$463,760123,554
(Direct)
View
2026-06-02
Sale
2026-06-04
4:40 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchafer Douglas M. JR
EVP and CIO
48,000$42.84$2,056,320402,681
(Direct)
View
2026-06-02
Sale
2026-06-04
4:37 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBrown Shelly
EVP, Chief Strategy Officer
16,000$42.12$673,920341,047
(Direct)
View
2026-06-02
Sale
2026-06-04
4:37 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
70,000$42.36$2,965,2001,863,275
(Indirect)
View
2026-05-15
Sale
2026-05-18
4:52 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXEmmons Lance
EVP and CFO
35,000$56.36$1,972,60084,262
(Direct)
View
2026-05-05
Sale
2026-05-07
4:07 pm
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
15,771$47.92$755,7461,933,275
(Indirect)
View
2026-05-04
Sale
2026-05-05
08:17 am
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
54,229$47.26$2,562,8631,949,046
(Indirect)
View
2026-05-04
Sale
2026-05-05
08:16 am
MIAMI INTERNATIONAL HOLDINGS INC.MIAXDeitzel Edward
EVP, CRO, CCO MIAX Exchanges
11,000$47.28$520,080134,554
(Direct)
View
2026-05-04
Sale
2026-05-05
07:43 am
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBrown Shelly
EVP, Chief Strategy Officer
16,000$47.28$756,480357,047
(Direct)
View
2026-05-04
Sale
2026-05-05
07:41 am
MIAMI INTERNATIONAL HOLDINGS INC.MIAXTeekell Judson Gray
Director
3,000$47.3$141,90056,338
(Direct)
View
2026-05-04
Sale
2026-05-05
07:32 am
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchafer Douglas M. JR
EVP and CIO
48,000$47.25$2,268,000450,681
(Direct)
View
2026-05-04
Sale
2026-05-05
07:31 am
MIAMI INTERNATIONAL HOLDINGS INC.MIAXEckert Kurt M.
Director
5,625$47.29$266,006153,938
(Direct)
View
2026-05-04
Sale
2026-05-05
07:30 am
MIAMI INTERNATIONAL HOLDINGS INC.MIAXComly Barbara J.
EVP, GC & Corporate Secretary
28,000$47.26$1,323,280927,844
(Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2026-06-16
Option Award
2026-06-17
5:07 pm
N/A
2036-06-15
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBROWN DAVID A
Director
12,379$012,379
(Direct)
View
2026-06-15
Option Award
2026-06-17
5:04 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXAl-Bahar Talal Jassim
Director
7,237$040,891
(Direct)
View
2026-06-16
Option Award
2026-06-17
4:43 pm
N/A
2036-06-15
MIAMI INTERNATIONAL HOLDINGS INC.MIAXLozier Kenneth W.
Director
9,808$010,808
(Direct)
View
2026-06-16
Option Award
2026-06-17
4:40 pm
N/A
2036-06-15
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSommers Jill E.
Director
8,654$08,654
(Direct)
View
2026-06-16
Option Award
2026-06-17
4:39 pm
N/A
2036-06-15
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchwarzkopf Cynthia
Director
12,379$093,687
(Direct)
View
2026-06-15
Option Award
2026-06-17
4:35 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBecker Lee
Director
2,267$02,267
(Direct)
View
2026-06-15
Option Award
2026-06-17
4:33 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXMassad Mark I.
Director
7,237$010,737
(Direct)
View
2026-06-15
Option Award
2026-06-17
4:31 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXMoore Lisa
Director
7,237$012,737
(Direct)
View
2026-06-16
Exercise
2026-06-17
4:29 pm
N/A
2026-06-19
MIAMI INTERNATIONAL HOLDINGS INC.MIAXRaymond Mark F.
Director
16,000$067,064
(Direct)
View
2026-06-16
Exercise
2026-06-17
4:29 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXRaymond Mark F.
Director
16,000$1267,064
(Direct)
View
2026-06-15
Option Award
2026-06-17
4:29 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXRaymond Mark F.
Director
7,237$067,064
(Direct)
View
2026-06-15
Option Award
2026-06-17
4:27 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXStahlin Paul
Director
7,237$042,143
(Direct)
View
2026-06-15
Option Award
2026-06-17
4:24 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBeckelman John
Director
7,237$015,904
(Direct)
View
2026-06-15
Option Award
2026-06-17
4:22 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXTeekell Judson Gray
Director
7,237$078,251
(Direct)
View
2026-06-16
Option Award
2026-06-17
4:19 pm
N/A
2036-06-15
MIAMI INTERNATIONAL HOLDINGS INC.MIAXEckert Kurt M.
Director
14,950$0157,325
(Direct)
View
2026-06-15
Option Award
2026-06-17
3:19 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSites Eric
Director
5,684$039,412
(Direct)
View
2026-06-11
Tax Withholding
2026-06-12
4:19 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBrown Shelly
EVP, Chief Strategy Officer
3,619$40.79321,428
(Direct)
View
2026-06-11
Tax Withholding
2026-06-12
4:17 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXDeitzel Edward
EVP, CRO, CCO MIAX Exchanges
5,939$40.79110,282
(Direct)
View
2026-06-11
Tax Withholding
2026-06-12
4:16 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchafer Douglas M. JR
EVP and CIO
32,565$40.79364,116
(Direct)
View
2026-06-11
Exercise
2026-06-12
4:15 pm
N/A
2026-06-19
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchwarzkopf Cynthia
Director
19,500$081,308
(Direct)
View
2026-06-11
Exercise
2026-06-12
4:15 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchwarzkopf Cynthia
Director
19,500$1281,308
(Direct)
View
2026-06-09
Exercise
2026-06-11
4:42 pm
N/A
2026-06-19
MIAMI INTERNATIONAL HOLDINGS INC.MIAXStahlin Paul
Director
11,000$038,906
(Direct)
View
2026-06-11
Tax Withholding
2026-06-11
4:42 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXStahlin Paul
Director
1,177$40.7938,906
(Direct)
View
2026-06-09
Exercise
2026-06-11
4:42 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXStahlin Paul
Director
11,000$1238,906
(Direct)
View
2026-06-08
Exercise
2026-06-10
4:29 pm
N/A
2027-10-12
MIAMI INTERNATIONAL HOLDINGS INC.MIAXJayabalan Harish
EVP, CISO and CRO
20,000$084,856
(Direct)
View
2026-06-08
Exercise
2026-06-10
4:29 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXJayabalan Harish
EVP, CISO and CRO
20,000$1284,856
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:52 pm
N/A
2027-05-31
MIAMI INTERNATIONAL HOLDINGS INC.MIAXEckert Kurt M.
Director
5,250$0148,688
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:52 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXEckert Kurt M.
Director
5,250$12148,688
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:46 pm
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXComly Barbara J.
EVP, GC & Corporate Secretary
28,000$0899,844
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:46 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXComly Barbara J.
EVP, GC & Corporate Secretary
28,000$12899,844
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:44 pm
N/A
2028-05-17
MIAMI INTERNATIONAL HOLDINGS INC.MIAXDeitzel Edward
EVP, CRO, CCO MIAX Exchanges
11,000$0123,554
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:44 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXDeitzel Edward
EVP, CRO, CCO MIAX Exchanges
11,000$12123,554
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:40 pm
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchafer Douglas M. JR
EVP and CIO
48,000$0402,681
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:40 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchafer Douglas M. JR
EVP and CIO
48,000$12402,681
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:37 pm
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBrown Shelly
EVP, Chief Strategy Officer
16,000$0341,047
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:37 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBrown Shelly
EVP, Chief Strategy Officer
16,000$12341,047
(Direct)
View
2026-06-02
Exercise
2026-06-04
4:37 pm
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
70,000$01,863,275
(Indirect)
View
2026-06-02
Exercise
2026-06-04
4:37 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
70,000$121,863,275
(Indirect)
View
2026-05-19
Other
2026-05-21
5:21 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXHORIZON KINETICS ASSET MANAGEMENT LLC
10% Owner
2,455,744$04,626,642
(Indirect)
View
2026-05-19
Exercise
2026-05-19
4:34 pm
N/A
2026-06-19
MIAMI INTERNATIONAL HOLDINGS INC.MIAXTeekell Judson Gray
Director
22,667$074,014
(Direct)
View
2026-05-19
Tax Withholding
2026-05-19
4:34 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXTeekell Judson Gray
Director
4,991$54.5174,014
(Direct)
View
2026-05-19
Exercise
2026-05-19
4:34 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXTeekell Judson Gray
Director
22,667$1274,014
(Direct)
View
2026-05-11
Exercise
2026-05-13
4:26 pm
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
24,999$0510,962
(Direct)
View
2026-05-11
Exercise
2026-05-13
4:26 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
24,999$12510,962
(Direct)
View
2026-05-05
Exercise
2026-05-07
4:07 pm
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
15,771$01,933,275
(Indirect)
View
2026-05-05
Exercise
2026-05-07
4:07 pm
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
15,771$121,933,275
(Indirect)
View
2026-05-04
Exercise
2026-05-05
08:17 am
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
54,229$01,949,046
(Indirect)
View
2026-05-04
Exercise
2026-05-05
08:17 am
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXGallagher Thomas P.
Chairman & CEO
54,229$121,949,046
(Indirect)
View
2026-05-04
Exercise
2026-05-05
08:16 am
N/A
2028-05-17
MIAMI INTERNATIONAL HOLDINGS INC.MIAXDeitzel Edward
EVP, CRO, CCO MIAX Exchanges
11,000$0134,554
(Direct)
View
2026-05-04
Exercise
2026-05-05
08:16 am
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXDeitzel Edward
EVP, CRO, CCO MIAX Exchanges
11,000$12134,554
(Direct)
View
2026-05-04
Exercise
2026-05-05
07:43 am
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBrown Shelly
EVP, Chief Strategy Officer
16,000$0357,047
(Direct)
View
2026-05-04
Exercise
2026-05-05
07:43 am
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXBrown Shelly
EVP, Chief Strategy Officer
16,000$12357,047
(Direct)
View
2026-05-04
Exercise
2026-05-05
07:32 am
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchafer Douglas M. JR
EVP and CIO
48,000$0450,681
(Direct)
View
2026-05-04
Exercise
2026-05-05
07:32 am
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXSchafer Douglas M. JR
EVP and CIO
48,000$12450,681
(Direct)
View
2026-05-04
Exercise
2026-05-05
07:31 am
N/A
2027-05-31
MIAMI INTERNATIONAL HOLDINGS INC.MIAXEckert Kurt M.
Director
5,625$0153,938
(Direct)
View
2026-05-04
Exercise
2026-05-05
07:31 am
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXEckert Kurt M.
Director
5,625$12153,938
(Direct)
View
2026-05-04
Exercise
2026-05-05
07:30 am
N/A
2026-08-02
MIAMI INTERNATIONAL HOLDINGS INC.MIAXComly Barbara J.
EVP, GC & Corporate Secretary
28,000$0927,844
(Direct)
View
2026-05-04
Exercise
2026-05-05
07:30 am
N/A
N/A
MIAMI INTERNATIONAL HOLDINGS INC.MIAXComly Barbara J.
EVP, GC & Corporate Secretary
28,000$12927,844
(Direct)
View
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