Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Schafer Douglas M. Jr
Over the trailing 90 days, Schafer Douglas M. Jr (Other Officer at MIAMI INTERNATIONAL HOLDINGS, INC.) traded $9.4M of stock (net selling $5.9M) in MIAX, per 15 SEC Form 4 transactions.
- Role
- Other Officer
- Companies
- MIAX
- Window
- Trailing 90 days · 15 transactions · CIK 2079445
- Net activity
- −$5.9M ($1.7M bought · $7.6M sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| MIAX | MIAMI INTERNATIONAL HOLDINGS, INC. | 15 | $1.7M | $7.6M | −$5.9M |
Transactions (15)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-07-02 | MIAX | Sell | 42.0K | $0 | Exercise or conversion of derivative security |
| 2026-07-02 | MIAX | Sell | 6.0K | $0 | Exercise or conversion of derivative security |
| 2026-07-02 | MIAX | Sell | 48.0K | $2.0M | Open market or private sale |
| 2026-07-02 | MIAX | Buy | 42.0K | $504K | Exercise or conversion of derivative security |
| 2026-07-02 | MIAX | Buy | 6.0K | $72K | Exercise or conversion of derivative security |
| 2026-06-16 | MIAX | Buy | 2.5K | $0 | Grant, award or other acquisition |
| 2026-06-16 | MIAX | Buy | 23.3K | $0 | Grant, award or other acquisition |
| 2026-06-16 | MIAX | Buy | 21.5K | $0 | Grant, award or other acquisition |
| 2026-06-11 | MIAX | Sell | 32.6K | $1.3M | Payment of exercise price or tax liability by delivering securities |
| 2026-06-02 | MIAX | Sell | 48.0K | $0 | Exercise or conversion of derivative security |
| 2026-06-02 | MIAX | Sell | 48.0K | $2.1M | Open market or private sale |
| 2026-06-02 | MIAX | Buy | 48.0K | $576K | Exercise or conversion of derivative security |
| 2026-05-04 | MIAX | Sell | 48.0K | $2.3M | Open market or private sale |
| 2026-05-04 | MIAX | Buy | 48.0K | $576K | Exercise or conversion of derivative security |
| 2026-05-04 | MIAX | Sell | 48.0K | $0 | Exercise or conversion of derivative security |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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