MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX)
NYSE · Security Brokers, Dealers & Flotation Companies · Inc. DE
What they're doing
Between 2026-06-21 and 2026-09-19, public records show 14 signals for MIAMI INTERNATIONAL HOLDINGS, INC.. Most notable: 2026-08-19: Gallagher Thomas P. (director) sold $6.2M of stock; 2026-07-13: Gallagher Thomas P. (director) sold $3.0M of stock; 2026-07-02: Schafer Douglas M. JR (officer) sold $2.0M 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 2026-09-19 from public records.
Signals, last 12 months
- 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 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 $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 purchaseSTAHL MURRAY (director) bought $312k of stock
- Insider purchaseHORIZON KINETICS ASSET MANAGEMENT LLC (other) 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
- Material 8-K filingFiled 8-K disclosing director or officer change
Insider transactions
| Date | Insider | Role | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 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 |
| 2026-07-08 | BROWN DAVID A | director | F | 171 | 43.72 | $7,476 |
| 2026-07-07 | Gallagher Thomas P. | director | M | 28,228 | 12 | $338,736 |
| 2026-07-07 | Gallagher Thomas P. | director | S | 28,228 | 42.27 | $1,193,198 |
| 2026-07-06 | Gallagher Thomas P. | director | M | 41,772 | 12 | $501,264 |
| 2026-07-06 | Gallagher Thomas P. | director | S | 41,772 | 42.09 | $1,758,183 |
| 2026-07-06 | Jayabalan Harish | officer | M | 834 | 12 | $10,008 |
| 2026-07-06 | Jayabalan Harish | officer | M | 16,667 | 12 | $200,004 |
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
No Wikipedia pageview data linked to this company.