MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX)
NYSE · Security Brokers, Dealers & Flotation Companies · Inc. DE
What they're doing
Between 2026-08-02 and 2026-10-31, public records show 9 signals for MIAMI INTERNATIONAL HOLDINGS, INC.. Most notable: 2026-08-19: Gallagher Thomas P. (director) sold $6.2M of stock; 2026-08-04: Comly Barbara J. (officer) sold $2.0M of stock; 2026-08-04: Schafer Douglas M. JR (officer) sold $2.2M of stock. Federal contract obligations over the last 24 months total $0. This summary was assembled automatically from SEC EDGAR, USAspending.gov, U.S. Senate lobbying disclosures and Wikimedia pageview counts.
Generated 2026-10-31 from public records.
Signals, last 12 months
- Large insider saleSchafer Douglas M. JR (officer) sold $1.3M of stock
- Large insider saleGallagher Thomas P. (director) sold $2.0M of stock
- Large insider saleComly Barbara J. (officer) sold $1.8M of stock
- Large insider saleSchafer Douglas M. JR (officer) sold $1.9M of stock
- Large insider saleGallagher Thomas P. (director) sold $6.2M of stock
- Large insider saleEmmons Lance (officer) sold $1.5M of stock
- Large insider saleGallagher Thomas P. (director) sold $2.2M of stock
- Large insider saleComly Barbara J. (officer) sold $2.0M of stock
- Large insider saleSchafer Douglas M. JR (officer) sold $2.2M of stock
- Large insider saleGallagher Thomas P. (director) sold $3.0M of stock
- Large insider saleComly Barbara J. (officer) sold $1.2M of stock
- Large insider saleGallagher Thomas P. (director) sold $1.2M of stock
- Large insider saleGallagher Thomas P. (director) sold $1.8M of stock
- Large insider saleSchafer Douglas M. JR (officer) sold $2.0M of stock
- Large insider saleComly Barbara J. (officer) sold $1.2M of stock
- Material 8-K filingFiled 8-K disclosing director or officer change
- Large insider saleGallagher Thomas P. (director) sold $3.0M of stock
- Large insider saleSchafer Douglas M. JR (officer) sold $2.1M of stock
- Large insider saleComly Barbara J. (officer) sold $1.2M of stock
- Large insider saleEmmons Lance (officer) sold $2.0M of stock
- Large insider saleGallagher Thomas P. (director) sold $2.6M of stock
- Large insider saleGallagher Thomas P. (director) sold $2.6M of stock
- Large insider saleSchafer Douglas M. JR (officer) sold $2.3M of stock
- Large insider saleSchafer Douglas M. JR (officer) sold $2.3M of stock
- Large insider saleComly Barbara J. (officer) sold $1.3M of stock
- Large insider saleComly Barbara J. (officer) sold $1.3M of stock
- Material 8-K filingFiled 8-K disclosing director or officer change
- Large insider saleGallagher Thomas P. (director) sold $4.5M of stock
- Large insider saleGallagher Thomas P. (director) sold $3.0M of stock
- Large insider saleGallagher Thomas P. (director) sold $2.2M of stock
- Large insider saleComly Barbara J. (officer) sold $1.3M of stock
- Large insider saleComly Barbara J. (officer) sold $1.3M of stock
- Material 8-K filingFiled 8-K disclosing director or officer change
- Material 8-K filingFiled 8-K disclosing director or officer change
- Large insider saleBrown Shelly (officer) sold $1.0M of stock
- Large insider saleEckert Kurt M. (director) sold $1.5M of stock
- Large insider saleEckert Kurt M. (director) sold $1.5M of stock
- Large insider saleSchafer Douglas M. JR (officer) sold $1.9M of stock
- Large insider saleSchafer Douglas M. JR (officer) sold $1.9M of stock
- Insider purchaseSTAHL MURRAY (director) bought $310k of stock
- Insider buying cluster3 insiders bought $1.2M within 14 days
- Insider purchaseHORIZON KINETICS ASSET MANAGEMENT LLC (other) bought $312k of stock
- Insider purchaseSTAHL MURRAY (director) bought $312k of stock
- Large insider saleHORIZON KINETICS ASSET MANAGEMENT LLC (other) sold $5.0M of stock
- Large insider saleSTAHL MURRAY (director) sold $2.2M of stock
- Large insider saleSTAHL MURRAY; HORIZON KINETICS ASSET MANAGEMENT LLC (director) sold $2.2M of stock
- Insider purchaseSTAHL MURRAY (director) bought $100k of stock
Insider transactions
| Date | Insider | Role | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-10-22 | Schafer Douglas M. JR | officer | S | 8,000 | 35.06 | $280,480 |
| 2026-10-22 | Schafer Douglas M. JR | officer | M | 8,000 | 12 | $96,000 |
| 2026-10-22 | Comly Barbara J. | officer | S | 12,306 | 35.04 | $431,202 |
| 2026-10-22 | Comly Barbara J. | officer | M | 12,306 | 12 | $147,672 |
| 2026-10-02 | Schafer Douglas M. JR | officer | S | 40,000 | 33.34 | $1,333,600 |
| 2026-10-02 | Schafer Douglas M. JR | officer | M | 40,000 | 12 | $480,000 |
| 2026-09-25 | Jayabalan Harish | officer | M | 8,333 | 12 | $99,996 |
| 2026-09-16 | Brown Shelly | officer | S | 21,217 | 38.61 | $819,188 |
| 2026-09-11 | Brown Shelly | officer | F | 16,283 | 42.54 | $692,679 |
| 2026-09-03 | Gallagher Thomas P. | director | M | 47,000 | 12 | $564,000 |
| 2026-09-03 | Gallagher Thomas P. | director | S | 47,000 | 42.43 | $1,994,210 |
| 2026-09-03 | Gallagher Thomas P. | director | M | 16,666 | 12 | $199,992 |
| 2026-09-03 | Gallagher Thomas P. | director | M | 8,333 | 12 | $99,996 |
| 2026-09-03 | Gallagher Thomas P. | director | M | 13,140 | 15.22 | $199,991 |
| 2026-09-03 | Gallagher Thomas P. | director | M | 4,464 | 22.4 | $99,994 |
| 2026-09-03 | Deitzel Edward | officer | M | 11,000 | 12 | $132,000 |
| 2026-09-03 | Deitzel Edward | officer | S | 11,000 | 42.21 | $464,310 |
| 2026-09-02 | Comly Barbara J. | officer | M | 44,445 | 12 | $533,340 |
| 2026-09-02 | Comly Barbara J. | officer | S | 44,445 | 40.49 | $1,799,578 |
| 2026-09-02 | Schafer Douglas M. JR | officer | M | 43,334 | 12 | $520,008 |
| 2026-09-02 | Schafer Douglas M. JR | officer | M | 4,666 | 12 | $55,992 |
| 2026-09-02 | Schafer Douglas M. JR | officer | S | 48,000 | 40.48 | $1,943,040 |
| 2026-09-02 | Teekell Judson Gray | director | S | 5,545 | 41.58 | $230,561 |
| 2026-09-02 | Teekell Judson Gray | director | S | 3,000 | 40.89 | $122,670 |
| 2026-08-19 | Gallagher Thomas P. | director | S | 149,700 | 41.13 | $6,157,161 |
| 2026-08-18 | Gallagher Thomas P. | director | F | 150,300 | 42.41 | $6,374,223 |
| 2026-08-18 | Comly Barbara J. | officer | F | 43,420 | 42.41 | $1,841,442 |
| 2026-08-17 | Schwarzkopf Cynthia | director | M | 5,000 | 12 | $60,000 |
| 2026-08-17 | Schwarzkopf Cynthia | director | S | 5,000 | 42.85 | $214,250 |
| 2026-08-17 | Emmons Lance | officer | S | 35,000 | 42.83 | $1,499,050 |
| 2026-08-04 | Eckert Kurt M. | director | M | 1,063 | 12 | $12,756 |
| 2026-08-04 | Eckert Kurt M. | director | S | 1,063 | 45.8 | $48,685 |
| 2026-08-04 | Teekell Judson Gray | director | S | 3,000 | 45.79 | $137,370 |
| 2026-08-04 | Jayabalan Harish | officer | M | 14,168 | 12 | $170,016 |
| 2026-08-04 | Jayabalan Harish | officer | M | 5,832 | 15.22 | $88,763 |
| 2026-08-04 | Jayabalan Harish | officer | S | 20,000 | 45.9 | $918,000 |
| 2026-08-04 | Comly Barbara J. | officer | M | 44,445 | 12 | $533,340 |
| 2026-08-04 | Comly Barbara J. | officer | S | 44,445 | 45.69 | $2,030,692 |
| 2026-08-04 | Deitzel Edward | officer | M | 11,000 | 12 | $132,000 |
| 2026-08-04 | Deitzel Edward | officer | S | 11,000 | 45.78 | $503,580 |
| 2026-08-04 | Schafer Douglas M. JR | officer | M | 48,000 | 12 | $576,000 |
| 2026-08-04 | Schafer Douglas M. JR | officer | S | 48,000 | 45.71 | $2,194,080 |
| 2026-08-04 | Gallagher Thomas P. | director | M | 48,334 | 12 | $580,008 |
| 2026-08-04 | Gallagher Thomas P. | director | S | 48,334 | 45.69 | $2,208,380 |
| 2026-07-15 | Schwarzkopf Cynthia | director | M | 5,000 | 12 | $60,000 |
| 2026-07-15 | Schwarzkopf Cynthia | director | S | 5,000 | 42 | $210,000 |
| 2026-07-13 | Comly Barbara J. | officer | M | 28,000 | 12 | $336,000 |
| 2026-07-13 | Comly Barbara J. | officer | S | 28,000 | 41.98 | $1,175,440 |
| 2026-07-13 | Gallagher Thomas P. | director | M | 70,000 | 12 | $840,000 |
| 2026-07-13 | Gallagher Thomas P. | director | S | 70,000 | 42.52 | $2,976,400 |
Federal contracts
No federal contract actions on record for this recipient mapping.
Lobbying
No federal lobbying filings on record for this client mapping.
Public attention
7-day average 25 views/day vs 90-day median 23.