MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) insider trading

By person

26 insiders · 90 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

—

$32.30M (12) scheduled

−$32.30M

3,633,092

3.66%

$140.27M

+9.1%

Schafer Douglas M. JR

EVP and CIO

—

$12.35M (6) scheduled

−$12.35M

387,414

0.3904%

$14.96M

+158.3%

Comly Barbara J.

EVP, GC & Corporate Secretary

—

$9.98M (7) scheduled

−$9.98M

839,564

0.8461%

$32.42M

−3.4%

Brown Shelly

EVP, Chief Strategy Officer

—

$4.98M (9) scheduled

−$4.98M

316,490

0.3189%

$12.22M

+127.8%

STAHL MURRAY

Director

$722.76K (5)

$4.95M (1) scheduled

−$4.23M

4,633,842

4.67%

$178.91M

+4.1%

Emmons Lance

EVP and CFO

—

$3.47M (2) scheduled

−$3.47M

86,542

0.0872%

$3.34M

+137.0%

Deitzel Edward

EVP, CRO, CCO MIAX Exchanges

—

$2.93M (8) scheduled

−$2.93M

119,601

0.1205%

$4.62M

+272.7%

Jayabalan Harish

EVP, CISO and CRO

—

$2.56M (4) scheduled

−$2.56M

78,065

0.0787%

$3.01M

+1,880%

Eckert Kurt M.

Director

—

$2.22M (5) scheduled

−$2.22M

149,612

0.1508%

$5.78M

+24.2%

Schwarzkopf Cynthia

Director

—

$1.24M (3) scheduled

−$1.24M

88,545

0.0892%

$3.42M

—

Teekell Judson Gray

Director

—

$1.00M (8) scheduled

−$1.00M

236,796

0.2386%

$9.14M

+123.3%

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

—

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

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

Gallagher Thomas P.

19 Aug 2026

Chairman & CEO

Sold on a plan indirect

149,700

$41.13

$6.16M

Emmons Lance

17 Aug 2026

EVP and CFO

Sold on a plan

35,000

$42.83

$1.50M

Teekell Judson Gray

4 Aug 2026

Director

Sold on a plan

3,000

$45.79

$137.37K

Teekell Judson Gray

2 Jul 2026

Director

Sold on a plan

3,000

$40.00

$120.00K

Brown Shelly

15 Jun 2026

EVP, Chief Strategy Officer

Sold on a plan

4,714

$44.23

$208.50K

Teekell Judson Gray

2 Jun 2026

Director

Sold on a plan

3,000

$42.78

$128.34K

Emmons Lance

15 May 2026

EVP and CFO

Sold on a plan

35,000

$56.36

$1.97M

Teekell Judson Gray

4 May 2026

Director

Sold on a plan

3,000

$47.30

$141.90K

Brown Shelly

7 Apr 2026

EVP, Chief Strategy Officer

Sold on a plan

900

$42.00

$37.80K

Brown Shelly

6 Apr 2026

EVP, Chief Strategy Officer

Sold on a plan

2,357

$41.33

$97.41K

Teekell Judson Gray

2 Apr 2026

Director

Sold on a plan

2,700

$40.00

$108.00K

Brown Shelly

23 Mar 2026

EVP, Chief Strategy Officer

Sold on a plan

25,932

$39.33

$1.02M

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