CIK 0001438472 · Non-accelerated filer
MIAMI INTERNATIONAL HOLDINGS, INC.
Sign in to watch- Ticker
- MIAX
- Exchange
- NYSE
- Industry
- Security Brokers, Dealers & Flotation Companies
- Incorporated
- DE
- Entity type
- operating
- EIN
- 261482385
- Phone
- 609-897-7300
- Business address
- 7 ROSZEL ROAD, FIFTH FLOOR, SUITE 1-A, PRINCETON, NJ, 08540
- Former names
- MIAMI INTERNATIONAL HOLDINGS INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $21,715,991
- in 14 filings, $21.7M under 10b5-1 plans
Net −$21,715,991. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
- Gallagher Thomas P. −$8.2M Chairman & CEO sold 12% of stake
- Schafer Douglas M. JR −$5.2M EVP and CIO sold 27% of stake
- Comly Barbara J. −$5.0M EVP, GC & Corporate Secretary sold 14% of stake
- Emmons Lance −$1.5M EVP and CFO sold 29% of stake
- Brown Shelly −$819K EVP, Chief Strategy Officer sold 6% of stake
Reading 55 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-06-08 | Jayabalan Harish EVP, CISO and CRO | Sale 10b5-1 | −10,217 | $40.12 | $410K | 73,405 |
| 2026-06-08 | Jayabalan Harish EVP, CISO and CRO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −10,217 | 10,617 | ||
| 2026-06-02 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise 10b5-1 | +28,000 | $12.00 | $336K | 871,844 |
| 2026-06-02 | Comly Barbara J. EVP, GC & Corporate Secretary | Sale 10b5-1 | −28,000 | $42.85 | $1.2M | 843,844 |
| 2026-06-02 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −28,000 | 56,000 | ||
| 2026-06-02 | Eckert Kurt M. Director | Option exercise 10b5-1 | +5,250 | $12.00 | $63K | 147,625 |
| 2026-06-02 | Eckert Kurt M. Director | Sale 10b5-1 | −5,250 | $42.76 | $224K | 142,375 |
| 2026-06-02 | Eckert Kurt M. Director | Option exercise · Stock Option (Right to Buy) 10b5-1 | −5,250 | 6,313 | ||
| 2026-06-02 | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | Option exercise 10b5-1 | +11,000 | $12.00 | $132K | 127,221 |
| 2026-06-02 | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | Sale 10b5-1 | −11,000 | $42.16 | $464K | 116,221 |
| 2026-06-02 | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −11,000 | 7,333 | ||
| 2026-06-02 | Brown Shelly EVP, Chief Strategy Officer | Option exercise 10b5-1 | +16,000 | $12.00 | $192K | 341,047 |
| 2026-06-02 | Brown Shelly EVP, Chief Strategy Officer | Sale 10b5-1 | −16,000 | $42.12 | $674K | 325,047 |
| 2026-06-02 | Brown Shelly EVP, Chief Strategy Officer | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −16,000 | 16,000 | ||
| 2026-06-02 | Gallagher Thomas P. Chairman & CEO | Option exercise 10b5-1 | +70,000 | $12.00 | $840K | 1,793,275 |
| 2026-06-02 | Gallagher Thomas P. Chairman & CEO | Sale 10b5-1 | −70,000 | $42.36 | $3.0M | 1,723,275 |
| 2026-06-02 | Gallagher Thomas P. Chairman & CEO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −70,000 | 140,000 | ||
| 2026-06-02 | Schafer Douglas M. JR EVP and CIO | Option exercise 10b5-1 | +48,000 | $12.00 | $576K | 444,681 |
| 2026-06-02 | Schafer Douglas M. JR EVP and CIO | Sale 10b5-1 | −48,000 | $42.84 | $2.1M | 396,681 |
| 2026-06-02 | Schafer Douglas M. JR EVP and CIO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −48,000 | 6,000 |
Page 11 of 15 · 296 trades