MIAMI INTERNATIONAL HOLDINGS, INC.

By person

26 insiders · 109 transactions

61.3×

Thomas P. Gallagher holds 61.3 times base salary in stock. $153.35M of shares against $2.50M in salary for 2025.

Salary from the company's own proxy. The shares are what Thomas P. Gallagher last reported holding, valued at $42.21, the price Common Stock was last bought or sold at on the open market here, on 3 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Gallagher Thomas P.

Chairman & CEO

$276.00K (1)

$32.30M (12) scheduled

−$32.03M

3,633,092

3.66%

$153.35M

+9.1%

Schafer Douglas M. JR

EVP and CIO

—

$12.35M (6) scheduled

−$12.35M

387,414

0.3904%

$16.35M

+158.3%

Comly Barbara J.

EVP, GC & Corporate Secretary

—

$9.98M (7) scheduled

−$9.98M

839,564

0.8461%

$35.44M

−3.4%

Brown Shelly

EVP, Chief Strategy Officer

—

$4.16M (8) scheduled

−$4.16M

337,707

0.3403%

$14.25M

+143.0%

Emmons Lance

EVP and CFO

$125.76 (1)

$3.47M (2) scheduled

−$3.47M

86,542

0.0872%

$3.65M

+137.0%

STAHL MURRAY

Director

$1.97M (6)

$4.95M (1) scheduled

−$2.99M

4,633,842

4.67%

$195.59M

+4.1%

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

$2.30K (1)

$2.93M (8) scheduled

−$2.93M

119,601

0.1205%

$5.05M

+272.7%

Jayabalan Harish

EVP, CISO and CRO

$57.50K (1)

$2.56M (4) scheduled

−$2.50M

78,065

0.0787%

$3.30M

+1,880%

Eckert Kurt M.

Director

—

$2.22M (5) scheduled

−$2.22M

149,612

0.1508%

$6.32M

+24.2%

Schwarzkopf Cynthia

Director

—

$1.24M (3) scheduled

−$1.24M

88,545

0.0892%

$3.74M

—

Teekell Judson Gray

Director

—

$1.00M (8) scheduled

−$1.00M

236,796

0.2386%

$10.00M

+123.3%

Massad Mark I.

Director

$184.00K (4)

—

+$184.00K

11,237

0.0113%

$474.31K

—

Moore Lisa

Director

$126.50K (1)

—

+$126.50K

12,737

0.0128%

$537.63K

—

Smollen John

EVP, New Product Development

$115.00K (1)

—

+$115.00K

269,878

0.2720%

$11.39M

—

Nazarali Jamil

Director

$57.50K (1)

—

+$57.50K

2,500

0.0025%

$105.53K

—

Lozier Kenneth W.

Director

$23.00K (1)

—

+$23.00K

8,237

0.0083%

$347.68K

—

Stahlin Paul

Director

$23.00K (1)

—

+$23.00K

42,143

0.0425%

$1.78M

—

Al-Bahar Talal Jassim

Director

—

3,658,187

3.69%

$154.41M

+7.2%

HORIZON KINETICS ASSET MANAGEMENT LLC entity

10% owner

—

2,170,898

2.19%

$91.63M

−53.1%

Raymond Mark F.

Director

—

67,064

0.0676%

$2.83M

—

Beckelman John

Director

—

15,904

0.0160%

$671.31K

—

BROWN DAVID A

Director

—

7,066

0.0071%

$298.26K

—

Sommers Jill E.

Director

—

6,083

0.0061%

$256.76K

—

Sites Eric

Director

—

5,684

0.0057%

$239.92K

—

Vermaas Cees

CEO of TISEG

—

4,660

0.0047%

$196.70K

—

Becker Lee

Director

—

2,267

0.0023%

$95.69K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Deitzel Edward

3 Sep 2026

EVP, CRO, CCO MIAX Exchanges

Sold after exercise

11,000

$42.21

$464.31K

Gallagher Thomas P.

3 Sep 2026

Chairman & CEO

Sold after exercise indirect

47,000

$42.43

$1.99M

Schafer Douglas M. JR

2 Sep 2026

EVP and CIO

Sold after exercise

48,000

$40.48

$1.94M

Comly Barbara J.

2 Sep 2026

EVP, GC & Corporate Secretary

Sold after exercise

44,445

$40.49

$1.80M

Schwarzkopf Cynthia

17 Aug 2026

Director

Sold after exercise

5,000

$42.85

$214.25K

Gallagher Thomas P.

4 Aug 2026

Chairman & CEO

Sold after exercise indirect

48,334

$45.69

$2.21M

Schafer Douglas M. JR

4 Aug 2026

EVP and CIO

Sold after exercise

48,000

$45.71

$2.19M

Deitzel Edward

4 Aug 2026

EVP, CRO, CCO MIAX Exchanges

Sold after exercise

11,000

$45.78

$503.58K

Comly Barbara J.

4 Aug 2026

EVP, GC & Corporate Secretary

Sold after exercise

44,445

$45.69

$2.03M

Jayabalan Harish

4 Aug 2026

EVP, CISO and CRO

Sold after exercise

20,000

$45.90

$918.00K

Eckert Kurt M.

4 Aug 2026

Director

Sold after exercise

1,063

$45.80

$48.69K

Schwarzkopf Cynthia

15 Jul 2026

Director

Sold after exercise

5,000

$42.00

$210.00K

Gallagher Thomas P.

13 Jul 2026

Chairman & CEO

Sold after exercise indirect

70,000

$42.52

$2.98M

Comly Barbara J.

13 Jul 2026

EVP, GC & Corporate Secretary

Sold after exercise

28,000

$41.98

$1.18M

Gallagher Thomas P.

7 Jul 2026

Chairman & CEO

Sold after exercise indirect

28,228

$42.27

$1.19M

Brown Shelly

6 Jul 2026

EVP, Chief Strategy Officer

Sold after exercise

16,000

$42.13

$674.08K

Deitzel Edward

6 Jul 2026

EVP, CRO, CCO MIAX Exchanges

Sold after exercise

11,000

$42.04

$462.44K

Jayabalan Harish

6 Jul 2026

EVP, CISO and CRO

Sold after exercise

20,000

$42.12

$842.40K

Gallagher Thomas P.

6 Jul 2026

Chairman & CEO

Sold after exercise indirect

41,772

$42.09

$1.76M

Schafer Douglas M. JR

2 Jul 2026

EVP and CIO

Sold after exercise

48,000

$41.22

$1.98M

Comly Barbara J.

2 Jul 2026

EVP, GC & Corporate Secretary

Sold after exercise

28,000

$41.22

$1.15M

Eckert Kurt M.

2 Jul 2026

Director

Sold after exercise

5,250

$39.35

$206.59K

Schwarzkopf Cynthia

11 Jun 2026

Director

Sold after exercise

19,500

$41.73

$813.74K

Jayabalan Harish

9 Jun 2026

EVP, CISO and CRO

Sold after exercise

9,783

$40.04

$391.71K

Jayabalan Harish

8 Jun 2026

EVP, CISO and CRO

Sold after exercise

10,217

$40.12

$409.91K

Gallagher Thomas P.

2 Jun 2026

Chairman & CEO

Sold after exercise indirect

70,000

$42.36

$2.97M

Brown Shelly

2 Jun 2026

EVP, Chief Strategy Officer

Sold after exercise

16,000

$42.12

$673.92K

Schafer Douglas M. JR

2 Jun 2026

EVP and CIO

Sold after exercise

48,000

$42.84

$2.06M

Deitzel Edward

2 Jun 2026

EVP, CRO, CCO MIAX Exchanges

Sold after exercise

11,000

$42.16

$463.76K

Comly Barbara J.

2 Jun 2026

EVP, GC & Corporate Secretary

Sold after exercise

28,000

$42.85

$1.20M

Eckert Kurt M.

2 Jun 2026

Director

Sold after exercise

5,250

$42.76

$224.49K

Gallagher Thomas P.

5 May 2026

Chairman & CEO

Sold after exercise indirect

15,771

$47.92

$755.75K

Comly Barbara J.

4 May 2026

EVP, GC & Corporate Secretary

Sold after exercise

28,000

$47.26

$1.32M

Eckert Kurt M.

4 May 2026

Director

Sold after exercise

5,625

$47.29

$266.01K

Schafer Douglas M. JR

4 May 2026

EVP and CIO

Sold after exercise

48,000

$47.25

$2.27M

Brown Shelly

4 May 2026

EVP, Chief Strategy Officer

Sold after exercise

16,000

$47.28

$756.48K

Deitzel Edward

4 May 2026

EVP, CRO, CCO MIAX Exchanges

Sold after exercise

11,000

$47.28

$520.08K

Gallagher Thomas P.

4 May 2026

Chairman & CEO

Sold after exercise indirect

54,229

$47.26

$2.56M

Comly Barbara J.

15 Apr 2026

EVP, GC & Corporate Secretary

Sold after exercise

29,667

$43.64

$1.29M

Gallagher Thomas P.

15 Apr 2026

Chairman & CEO

Sold after exercise

49,900

$43.68

$2.18M

Gallagher Thomas P.

15 Apr 2026

Chairman & CEO

Sold after exercise indirect

104,124

$43.36

$4.51M

Gallagher Thomas P.

15 Apr 2026

Chairman & CEO

Sold after exercise indirect

70,001

$43.36

$3.04M

Deitzel Edward

8 Apr 2026

EVP, CRO, CCO MIAX Exchanges

Sold after exercise

7,572

$42.02

$318.18K

Brown Shelly

8 Apr 2026

EVP, Chief Strategy Officer

Sold after exercise

16,434

$42.08

$691.54K

Deitzel Edward

7 Apr 2026

EVP, CRO, CCO MIAX Exchanges

Sold after exercise

4,001

$42.00

$168.04K

Deitzel Edward

7 Apr 2026

EVP, CRO, CCO MIAX Exchanges

Sold after exercise

762

$42.00

$32.00K

Eckert Kurt M.

19 Mar 2026

Director

Sold after exercise

37,917

$39.00

$1.48M

Schafer Douglas M. JR

17 Mar 2026

EVP and CIO

Sold after exercise

48,000

$39.74

$1.91M

STAHL MURRAY

2 Mar 2026

Director

Sold after exercise indirect

121,054

$40.92

$4.95M

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