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 |
|---|---|---|---|---|---|---|
| 2026-11-05 | Teekell Judson Gray Director | Other disposition | −81,000 | 0 | ||
| 2026-11-05 | Teekell Judson Gray Director | Other acquisition | +20,250 | 89,501 | ||
| 2026-11-04 | Schafer Douglas M. JR EVP and CIO | Option exercise 10b5-1 | +8,000 | $12.00 | $96K | 395,414 |
| 2026-11-04 | Schafer Douglas M. JR EVP and CIO | Sale 10b5-1 | −8,000 | $35.00 | $280K | 387,414 |
| 2026-11-04 | Schafer Douglas M. JR EVP and CIO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −8,000 | 99,334 | ||
| 2026-11-04 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise 10b5-1 | +8,799 | $12.00 | $106K | 848,363 |
| 2026-11-04 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise 10b5-1 | +47,223 | $12.00 | $567K | 895,586 |
| 2026-11-04 | Comly Barbara J. EVP, GC & Corporate Secretary | Sale 10b5-1 | −56,022 | $35.07 | $2.0M | 839,564 |
| 2026-11-04 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −8,799 | 0 | ||
| 2026-11-04 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −47,223 | 94,444 | ||
| 2026-11-03 | Schafer Douglas M. JR EVP and CIO | Option exercise 10b5-1 | +40,000 | $12.00 | $480K | 427,414 |
| 2026-11-03 | Schafer Douglas M. JR EVP and CIO | Sale 10b5-1 | −40,000 | $34.07 | $1.4M | 387,414 |
| 2026-11-03 | Schafer Douglas M. JR EVP and CIO | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −40,000 | 107,334 | ||
| 2026-11-02 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise 10b5-1 | +23,339 | $12.00 | $280K | 862,903 |
| 2026-11-02 | Comly Barbara J. EVP, GC & Corporate Secretary | Sale 10b5-1 | −23,339 | $35.10 | $819K | 839,564 |
| 2026-11-02 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −23,339 | 8,799 | ||
| 2026-10-22 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise 10b5-1 | +12,306 | $12.00 | $148K | 851,870 |
| 2026-10-22 | Comly Barbara J. EVP, GC & Corporate Secretary | Sale 10b5-1 | −12,306 | $35.04 | $431K | 839,564 |
| 2026-10-22 | Comly Barbara J. EVP, GC & Corporate Secretary | Option exercise · Nonqualified Stock Option (Right to Buy) 10b5-1 | −12,306 | 32,138 | ||
| 2026-10-22 | Schafer Douglas M. JR EVP and CIO | Option exercise 10b5-1 | +8,000 | $12.00 | $96K | 395,414 |
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