MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) insider trading

By person

26 insiders · 7 transactions

56.1×

Thomas P. Gallagher holds 56.1 times base salary in stock. $140.27M 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 $38.61, the price Common Stock was last bought or sold at on the open market here, on 16 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Gallagher Thomas P.

Chairman & CEO

—

$1.99M (1) scheduled

−$1.99M

3,633,092

3.66%

$140.27M

+9.1%

Schafer Douglas M. JR

EVP and CIO

—

$1.94M (1) scheduled

−$1.94M

387,414

0.3904%

$14.96M

+158.3%

Comly Barbara J.

EVP, GC & Corporate Secretary

—

$1.80M (1) scheduled

−$1.80M

839,564

0.8461%

$32.42M

−3.4%

Brown Shelly

EVP, Chief Strategy Officer

—

$819.19K (1) scheduled

−$819.19K

316,490

0.3189%

$12.22M

+127.8%

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

—

$464.31K (1) scheduled

−$464.31K

119,601

0.1205%

$4.62M

+272.7%

Teekell Judson Gray

Director

—

$353.23K (2) scheduled

−$353.23K

236,796

0.2386%

$9.14M

+123.3%

STAHL MURRAY

Director

—

4,633,842

4.67%

$178.91M

+4.1%

Al-Bahar Talal Jassim

Director

—

3,658,187

3.69%

$141.24M

+7.2%

HORIZON KINETICS ASSET MANAGEMENT LLC entity

10% owner

—

2,170,898

2.19%

$83.82M

−53.1%

Smollen John

EVP, New Product Development

—

269,878

0.2720%

$10.42M

—

Eckert Kurt M.

Director

—

149,612

0.1508%

$5.78M

+24.2%

Schwarzkopf Cynthia

Director

—

88,545

0.0892%

$3.42M

—

Emmons Lance

EVP and CFO

—

86,542

0.0872%

$3.34M

+137.0%

Jayabalan Harish

EVP, CISO and CRO

—

78,065

0.0787%

$3.01M

+1,880%

Raymond Mark F.

Director

—

67,064

0.0676%

$2.59M

—

Stahlin Paul

Director

—

42,143

0.0425%

$1.63M

—

Beckelman John

Director

—

15,904

0.0160%

$614.05K

—

Moore Lisa

Director

—

12,737

0.0128%

$491.78K

—

Massad Mark I.

Director

—

11,237

0.0113%

$433.86K

—

Lozier Kenneth W.

Director

—

8,237

0.0083%

$318.03K

—

BROWN DAVID A

Director

—

7,066

0.0071%

$272.82K

—

Sommers Jill E.

Director

—

6,083

0.0061%

$234.86K

—

Sites Eric

Director

—

5,684

0.0057%

$219.46K

—

Vermaas Cees

CEO of TISEG

—

4,660

0.0047%

$179.92K

—

Nazarali Jamil

Director

—

2,500

0.0025%

$96.53K

—

Becker Lee

Director

—

2,267

0.0023%

$87.53K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Brown Shelly

16 Sep 2026

EVP, Chief Strategy Officer

Sold on a plan

21,217

$38.61

$819.19K

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

Teekell Judson Gray

2 Sep 2026

Director

Sold on a plan

3,000

$40.89

$122.67K

Teekell Judson Gray

2 Sep 2026

Director

Sold on a plan indirect

5,545

$41.58

$230.56K

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

MIAMI INTERNATIONAL HOLDINGS, INC.

By person

Individual transactions

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