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 |
|---|---|---|---|---|---|---|
| 2026-08-04 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise 10b5-1 | +44,445 | $12.00 | $533K | 927,429 |
| 2026-08-04 | Comly Barbara J. EVP, GC & Corporate Secretary | Sale 10b5-1 | −44,445 | $45.69 | $2.0M | 882,984 |
| 2026-08-04 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −44,445 | 88,889 | ||
| 2026-08-04 | Eckert Kurt M. Director | Option exercise 10b5-1 | +1,063 | $12.00 | $13K | 150,675 |
| 2026-08-04 | Eckert Kurt M. Director | Sale 10b5-1 | −1,063 | $45.80 | $49K | 149,612 |
| 2026-08-04 | Eckert Kurt M. Director | Option exercise · Stock Option (Right to Buy) 10b5-1 | −1,063 | 0 | ||
| 2026-08-04 | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | Option exercise 10b5-1 | +11,000 | $12.00 | $132K | 130,601 |
| 2026-08-04 | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | Sale 10b5-1 | −11,000 | $45.78 | $504K | 119,601 |
| 2026-08-04 | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −11,000 | 77,000 | ||
| 2026-08-04 | Jayabalan Harish EVP, CISO and CRO | Option exercise 10b5-1 | +14,168 | $12.00 | $170K | 92,233 |
| 2026-08-04 | Jayabalan Harish EVP, CISO and CRO | Option exercise 10b5-1 | +5,832 | $15.22 | $89K | 98,065 |
| 2026-08-04 | Jayabalan Harish EVP, CISO and CRO | Sale 10b5-1 | −20,000 | $45.90 | $918K | 78,065 |
| 2026-08-04 | Jayabalan Harish EVP, CISO and CRO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −14,168 | 0 | ||
| 2026-08-04 | Jayabalan Harish EVP, CISO and CRO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −5,832 | 17,598 | ||
| 2026-08-04 | Gallagher Thomas P. Chairman & CEO | Option exercise 10b5-1 | +48,334 | $12.00 | $580K | 1,771,609 |
| 2026-08-04 | Gallagher Thomas P. Chairman & CEO | Sale 10b5-1 | −48,334 | $45.69 | $2.2M | 1,723,275 |
| 2026-08-04 | Gallagher Thomas P. Chairman & CEO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −48,334 | 235,000 | ||
| 2026-08-04 | Schafer Douglas M. JR EVP and CIO | Option exercise 10b5-1 | +48,000 | $12.00 | $576K | 435,414 |
| 2026-08-04 | Schafer Douglas M. JR EVP and CIO | Sale 10b5-1 | −48,000 | $45.71 | $2.2M | 387,414 |
| 2026-08-04 | Schafer Douglas M. JR EVP and CIO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −48,000 | 43,334 |
Page 4 of 15 · 296 trades