CIK 0001438472 · Non-accelerated filer
MIAMI INTERNATIONAL HOLDINGS, INC.
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- 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 |
|---|---|---|---|---|---|---|
| 2026-06-15 | Teekell Judson Gray Director | Grant or award | +2,267 | 73,281 | ||
| 2026-06-15 | Sommers Jill E. Director | Grant or award | +1,113 | 1,113 | ||
| 2026-06-15 | BROWN DAVID A Director | Grant or award | +2,267 | 2,267 | ||
| 2026-06-15 | Stahlin Paul Director | Grant or award | +2,267 | 37,173 | ||
| 2026-06-15 | Sites Eric Director | Grant or award | +714 | 714 | ||
| 2026-06-11 | Deitzel Edward EVP, CRO, CCO MIAX Exchanges | Shares withheld for taxes | −5,939 | $40.79 | $242K | 110,282 |
| 2026-06-11 | Schwarzkopf Cynthia Director | Option exercise 10b5-1 | +19,500 | $12.00 | $234K | 100,808 |
| 2026-06-11 | Schwarzkopf Cynthia Director | Sale 10b5-1 | −19,500 | $41.73 | $814K | 81,308 |
| 2026-06-11 | Schwarzkopf Cynthia Director | Option exercise · Stock Option (Right to Buy) 10b5-1 | −19,500 | 0 | ||
| 2026-06-11 | Brown Shelly EVP, Chief Strategy Officer | Shares withheld for taxes | −3,619 | $40.79 | $148K | 321,428 |
| 2026-06-11 | Schafer Douglas M. JR EVP and CIO | Shares withheld for taxes | −32,565 | $40.79 | $1.3M | 364,116 |
| 2026-06-11 | Stahlin Paul Director | Option exercise | +4,000 | $12.00 | $48K | 36,083 |
| 2026-06-11 | Stahlin Paul Director | Shares withheld for taxes | −1,177 | $40.79 | $48K | 34,906 |
| 2026-06-11 | Stahlin Paul Director | Option exercise · Stock Option (Right to Buy) | −4,000 | 0 | ||
| 2026-06-09 | Stahlin Paul Director | Option exercise | +7,000 | $12.00 | $84K | 32,083 |
| 2026-06-09 | Stahlin Paul Director | Option exercise · Stock Option (Right to Buy) | −7,000 | 4,000 | ||
| 2026-06-09 | Jayabalan Harish EVP, CISO and CRO | Option exercise 10b5-1 | +9,783 | $12.00 | $117K | 83,188 |
| 2026-06-09 | Jayabalan Harish EVP, CISO and CRO | Sale 10b5-1 | −9,783 | $40.04 | $392K | 73,405 |
| 2026-06-09 | Jayabalan Harish EVP, CISO and CRO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −9,783 | 834 | ||
| 2026-06-08 | Jayabalan Harish EVP, CISO and CRO | Option exercise 10b5-1 | +10,217 | $12.00 | $123K | 83,622 |
Page 10 of 15 · 296 trades