Senior insider sale
EVP and CIO at MIAMI INTERNATIONAL HOLDINGS, INC. — senior position signals high conviction
$8.19M
216K shares
What this filing means
SCHAFER DOUGLAS M. JR plans to sell 216K shares of MIAMI INTERNATIONAL HOLDINGS, INC. valued at approximately $8.19M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 10/2/2026ACC: 0001950047-26-010002
Officer· EVP and CIO
Since Feb 2026
216K
Shares to sell
$8.19M
Approx. market value
120K
Acquired (3 months)
1
Planned
2 completed
Securities Acquired — Last 3 Months1
Exercise of Stock Options
Cash
10/2/2026
120KTotal acquired120K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
10/2/2026 | Exercise of Stock Options Cash | 120K | — |
| Total | 120K | ||
Planned & Completed Dispositions3
Completed
—Completed
Units to sell
48K
Market value
$1.94M
9/2/2026
—Completed
Units to sell
48K
Market value
$2.19M
8/4/2026
Planned — Approximate Date
NYSEPlanned
Units to sell
120K
Market value
$4.05M
10/2/2026
Total
Units
216K
Value
$8.19M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
9/2/2026 | 48K | $1.94M | — | Completed |
8/4/2026 | 48K | $2.19M | — | Completed |
| Planned — Approximate Date | ||||
10/2/2026 | 120K | $4.05M | NYSE | Planned |
| Total | 216K | $8.19M | ||