MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
NYSE · SEC CIK 1438472 · EDGAR
- Bought, last 12 months
- $1.04M 6 purchases by 2 insiders
- Sold, last 12 months
- $80.32M 61 sales by 12 insiders
- Filings on record
- 149 since 2025-08-15, latest 2026-09-17 16:43
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Gallagher Thomas P. | COB, CEO, Dir | — | $32.30M |
| Schafer Douglas M. JR | EVP, CIO | — | $12.35M |
| Comly Barbara J. | EVP, GC, Corp. Sec | — | $9.98M |
| HORIZON KINETICS ASSET MANAGEMENT LLC | — | $312.4K | $4.95M |
| Brown Shelly | EVP, Chief Strategy Off | — | $5.11M |
| Emmons Lance | EVP, CFO | — | $3.47M |
| Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | — | $2.93M |
| STAHL MURRAY | Dir, 10% | $722.7K | $2.19M |
| Jayabalan Harish | EVP, CRO, CISO | — | $2.56M |
| Eckert Kurt M. | Dir | — | $2.22M |
Transactions 206
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DTI | 2026-06-04 16:37 | 2026-06-02 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | S - Sale+OE | $42.36 | -70.0K | 1.72M | -4% | -$2.97M |
| I | 2026-05-21 17:21 | 2026-05-19 | MIAX | HORIZON KINETICS ASSET MANAGEMENT LLC | 10% | J - Other | $0.00 | -2.46M | 2.17M | -53% | $0 |
| D | 2026-05-19 16:34 | 2026-05-19 | MIAX | Teekell Judson Gray | Dir | M - OptEx | $12.00 | +22.7K | 79.0K | +40% | +$272.0K |
| D | 2026-05-19 16:34 | 2026-05-19 | MIAX | Teekell Judson Gray | Dir | F - Tax | $54.51 | -4,991 | 74.0K | -6% | -$272.1K |
| T | 2026-05-18 16:52 | 2026-05-15 | MIAX | Emmons Lance | EVP, CFO | S - Sale | $56.36 | -35.0K | 84.3K | -29% | -$1.97M |
| D | 2026-05-13 16:26 | 2026-05-11 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | M - OptEx | $12.00 | +25.0K | 511.0K | +5% | +$300.0K |
| DTI | 2026-05-07 16:07 | 2026-05-05 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | M - OptEx | $12.00 | +15.8K | 1.74M | +0.9% | +$189.3K |
| DTI | 2026-05-07 16:07 | 2026-05-05 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | S - Sale+OE | $47.92 | -15.8K | 1.72M | -0.9% | -$755.7K |
| DTI | 2026-05-05 08:17 | 2026-05-04 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | M - OptEx | $12.00 | +54.2K | 1.78M | +3% | +$650.7K |
| DTI | 2026-05-05 08:17 | 2026-05-04 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | S - Sale+OE | $47.26 | -54.2K | 1.72M | -3% | -$2.56M |
| DT | 2026-05-05 08:16 | 2026-05-04 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | M - OptEx | $12.00 | +11.0K | 127.2K | +9% | +$132.0K |
| DT | 2026-05-05 08:16 | 2026-05-04 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | S - Sale+OE | $47.28 | -11.0K | 116.2K | -9% | -$520.1K |
| DT | 2026-05-05 07:43 | 2026-05-04 | MIAX | Brown Shelly | EVP, Chief Strategy Off | M - OptEx | $12.00 | +16.0K | 341.0K | +5% | +$192.0K |
| DT | 2026-05-05 07:43 | 2026-05-04 | MIAX | Brown Shelly | EVP, Chief Strategy Off | S - Sale+OE | $47.28 | -16.0K | 325.0K | -5% | -$756.5K |
| T | 2026-05-05 07:41 | 2026-05-04 | MIAX | Teekell Judson Gray | Dir | S - Sale | $47.30 | -3,000 | 56.3K | -5% | -$141.9K |
| DT | 2026-05-05 07:32 | 2026-05-04 | MIAX | Schafer Douglas M. JR | EVP, CIO | M - OptEx | $12.00 | +48.0K | 444.7K | +12% | +$576.0K |
| DT | 2026-05-05 07:32 | 2026-05-04 | MIAX | Schafer Douglas M. JR | EVP, CIO | S - Sale+OE | $47.25 | -48.0K | 396.7K | -11% | -$2.27M |
| DT | 2026-05-05 07:31 | 2026-05-04 | MIAX | Eckert Kurt M. | Dir | M - OptEx | $12.00 | +5,625 | 148.0K | +4% | +$67.5K |
| DT | 2026-05-05 07:31 | 2026-05-04 | MIAX | Eckert Kurt M. | Dir | S - Sale+OE | $47.29 | -5,625 | 142.4K | -4% | -$266.0K |
| DT | 2026-05-05 07:30 | 2026-05-04 | MIAX | Comly Barbara J. | EVP, GC, Corp. Sec | M - OptEx | $12.00 | +28.0K | 871.8K | +3% | +$336.0K |
| DT | 2026-05-05 07:30 | 2026-05-04 | MIAX | Comly Barbara J. | EVP, GC, Corp. Sec | S - Sale+OE | $47.26 | -28.0K | 843.8K | -3% | -$1.32M |
| DTI | 2026-04-17 16:17 | 2026-04-15 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | M - OptEx | $12.00 | +70.0K | 1.90M | +4% | +$840.0K |
| DMTI | 2026-04-17 16:17 | 2026-04-15 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | S - Sale+OE | $43.36 | -174.1K | 1.72M | -9% | -$7.55M |
| DT | 2026-04-17 16:17 | 2026-04-15 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | S - Sale+OE | $43.68 | -49.9K | 486.0K | -9% | -$2.18M |
| DT | 2026-04-17 16:15 | 2026-04-15 | MIAX | Comly Barbara J. | EVP, GC, Corp. Sec | M - OptEx | $12.00 | +29.7K | 873.5K | +4% | +$356.0K |
| DT | 2026-04-17 16:15 | 2026-04-15 | MIAX | Comly Barbara J. | EVP, GC, Corp. Sec | S - Sale+OE | $43.64 | -29.7K | 843.8K | -3% | -$1.29M |
| D | 2026-04-10 18:41 | 2026-04-09 | MIAX | Beckelman John | Dir | M - OptEx | $12.00 | +8,667 | 8,667 | New | +$104.0K |
| DT | 2026-04-09 16:20 | 2026-04-08 | MIAX | Brown Shelly | EVP, Chief Strategy Off | M - OptEx | $12.00 | +16.4K | 341.5K | +5% | +$197.2K |
| DT | 2026-04-09 16:20 | 2026-04-08 | MIAX | Brown Shelly | EVP, Chief Strategy Off | S - Sale+OE | $42.08 | -16.4K | 325.0K | -5% | -$691.5K |
| DMT | 2026-04-09 16:15 | 2026-04-07+ | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | M - OptEx | $12.00 | +12.3K | 123.8K | +11% | +$148.0K |
| DMT | 2026-04-09 16:15 | 2026-04-07+ | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | S - Sale+OE | $42.01 | -12.3K | 116.2K | -10% | -$518.2K |
| DMAT | 2026-04-09 16:13 | 2026-04-06+ | MIAX | Brown Shelly | EVP, Chief Strategy Off | S - Sale+OE | $41.52 | -3,257 | 325.0K | -1.0% | -$135.2K |
| DAT | 2026-04-09 16:13 | 2026-04-07 | MIAX | Brown Shelly | EVP, Chief Strategy Off | M - OptEx | $12.00 | +900 | 325.9K | +0.3% | +$10.8K |
| MT | 2026-04-08 16:19 | 2026-04-06+ | MIAX | Brown Shelly | EVP, Chief Strategy Off | S - Sale | $41.52 | -3,257 | 324.1K | -1.0% | -$135.2K |
| T | 2026-04-03 08:48 | 2026-04-02 | MIAX | Teekell Judson Gray | Dir | S - Sale | $40.00 | -2,700 | 59.3K | -4% | -$108.0K |
| 2026-04-01 16:48 | 2026-03-30 | MIAX | Smollen John | EVP, New Product Development | F - Tax | $37.50 | -362 | 170.8K | -0.2% | -$13.6K | |
| D | 2026-04-01 16:45 | 2026-03-30 | MIAX | Brown Shelly | EVP, Chief Strategy Off | F - Tax | $37.50 | -1,809 | 297.4K | -0.6% | -$67.8K |
| DM | 2026-04-01 16:45 | 2026-03-30 | MIAX | Brown Shelly | EVP, Chief Strategy Off | M - OptEx | $16.66 | +30.0K | 327.4K | +10% | +$499.9K |
| 2026-04-01 16:43 | 2026-03-30 | MIAX | Comly Barbara J. | EVP, GC, Corp. Sec | F - Tax | $37.50 | -1,448 | 843.8K | -0.2% | -$54.3K | |
| 2026-04-01 16:43 | 2026-03-30 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | F - Tax | $37.50 | -707 | 116.2K | -0.6% | -$26.5K | |
| I | 2026-04-01 16:42 | 2026-03-30 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | F - Tax | $37.50 | -20.9K | 1.83M | -1% | -$782.8K |
| 2026-04-01 16:42 | 2026-03-30 | MIAX | Emmons Lance | EVP, CFO | F - Tax | $37.50 | -8,350 | 119.3K | -7% | -$313.1K | |
| 2026-03-26 | 2026-03-25 | MIAX | Teekell Judson Gray | Dir | S - Sale | $40.00 | -300 | 62.0K | -0.5% | -$12.0K | |
| 2026-03-24 | 2026-03-23 | MIAX | Brown Shelly | EVP, Chief Strategy Off | S - Sale | $39.33 | -25.9K | 299.2K | -8% | -$1.02M | |
| D | 2026-03-20 | 2026-03-19 | MIAX | Eckert Kurt M. | Dir | S - Sale+OE | $39.00 | -37.9K | 142.4K | -21% | -$1.48M |
| D | 2026-03-20 | 2026-03-19 | MIAX | Eckert Kurt M. | Dir | M - OptEx | $12.00 | +12.9K | 180.3K | +8% | +$155.0K |
| D | 2026-03-18 | 2026-03-17 | MIAX | Schafer Douglas M. JR | EVP, CIO | S - Sale+OE | $39.74 | -48.0K | 396.7K | -11% | -$1.91M |
| D | 2026-03-18 | 2026-03-17 | MIAX | Schafer Douglas M. JR | EVP, CIO | M - OptEx | $12.00 | +48.0K | 444.7K | +12% | +$576.0K |
| DM | 2026-03-10 | 2026-03-09 | MIAX | Comly Barbara J. | EVP, GC, Corp. Sec | M - OptEx | $12.00 | +33.3K | 845.3K | +4% | +$400.0K |
| I | 2026-03-06 | 2026-03-05 | MIAX | STAHL MURRAY | Dir, 10% | P - Purchase | $43.08 | +7,200 | 4.63M | +0.2% | +$310.2K |
| AI | 2026-03-06 | 2026-03-04 | MIAX | STAHL MURRAY | Dir, 10% | P - Purchase | $43.38 | +7,200 | 4.63M | +0.2% | +$312.3K |
| DMAI | 2026-03-06 | 2026-03-02 | MIAX | STAHL MURRAY | Dir, 10% | X - OptEx | $19.46 | +112.7K | 4.58M | +3% | +$2.19M |
| DAI | 2026-03-06 | 2026-03-02 | MIAX | STAHL MURRAY | Dir, 10% | S - Sale+OE | $40.92 | -53.6K | 4.62M | -1% | -$2.19M |
| I | 2026-03-05 | 2026-03-04 | MIAX | HORIZON KINETICS ASSET MANAGEMENT LLC | — | P - Purchase | $43.38 | +7,200 | 4.70M | +0.2% | +$312.3K |
| DMI | 2026-03-04 | 2026-03-02 | MIAX | HORIZON KINETICS ASSET MANAGEMENT LLC | — | X - OptEx | $19.76 | +250.2K | 4.67M | +6% | +$4.94M |
| DI | 2026-03-04 | 2026-03-02 | MIAX | HORIZON KINETICS ASSET MANAGEMENT LLC | — | S - Sale+OE | $40.92 | -121.1K | 4.69M | -3% | -$4.95M |
| 2026-02-20 | 2026-02-18 | MIAX | Schafer Douglas M. JR | EVP, CIO | F - Tax | $40.89 | -32.6K | 396.7K | -8% | -$1.33M | |
| 2026-02-20 | 2026-02-18 | MIAX | Brown Shelly | EVP, Chief Strategy Off | F - Tax | $40.89 | -19.9K | 325.1K | -6% | -$813.8K | |
| 2026-02-20 | 2026-02-18 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | F - Tax | $40.89 | -6,035 | 116.9K | -5% | -$246.8K | |
| 2026-02-12 | 2026-02-10 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | F - Tax | $41.33 | -50.1K | 535.9K | -9% | -$2.07M | |
| 2026-02-12 | 2026-02-10 | MIAX | Schafer Douglas M. JR | EVP, CIO | F - Tax | $41.33 | -108.5K | 429.2K | -20% | -$4.49M | |
| 2025-12-29 | 2025-12-23 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | G - Gift | — | -2,000 | 586.0K | -0.3% | — | |
| DM | 2025-12-17 | 2025-12-16 | MIAX | Brown Shelly | EVP, Chief Strategy Off | M - OptEx | $12.00 | +33.3K | 345.0K | +11% | +$400.0K |
| DM | 2025-12-17 | 2025-12-16 | MIAX | Emmons Lance | EVP, CFO | M - OptEx | $14.94 | +33.5K | 122.6K | +38% | +$500.0K |
| I | 2025-12-15 | 2025-12-12 | MIAX | STAHL MURRAY | Dir, 10% | P - Purchase | $41.00 | +2,439 | 4.56M | +0.1% | +$100.0K |
| I | 2025-10-06 | 2025-10-03 | MIAX | HORIZON KINETICS ASSET MANAGEMENT LLC | — | P - Purchase | $41.97 | +2 | 4.56M | +0.0% | +$83.94 |
| I | 2025-09-30 | 2025-09-26 | MIAX | STAHL MURRAY | Dir, 10% | P - Purchase | $41.76 | +4 | 4.56M | +0.0% | +$167.04 |
| I | 2025-09-30 | 2025-08-28 | MIAX | HORIZON KINETICS ASSET MANAGEMENT LLC | — | P - Purchase | $36.10 | +34.5K | 4.56M | +0.8% | +$1.24M |
| DM | 2025-09-15 | 2025-09-11 | MIAX | Smollen John | EVP Traded Products, Relation | M - OptEx | $12.00 | +150.0K | 166.1K | +931% | +$1.80M |
| D | 2025-09-15 | 2025-09-11 | MIAX | Smollen John | EVP Traded Products, Relation | F - Tax | $37.39 | -52.1K | 141.1K | -27% | -$1.95M |
| DM | 2025-09-11 | 2025-09-09 | MIAX | Jayabalan Harish | EVP, CRO, CISO | M - OptEx | $12.00 | +25.0K | 75.4K | +50% | +$300.0K |
| D | 2025-09-11 | 2025-09-09 | MIAX | Jayabalan Harish | EVP, CRO, CISO | F - Tax | $37.30 | -1,980 | 73.4K | -3% | -$73.9K |
| DM | 2025-09-11 | 2025-09-09+ | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | M - OptEx | $12.00 | +79.2K | 123.0K | +181% | +$950.0K |
| D | 2025-09-11 | 2025-09-09 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | F - Tax | $37.30 | -38.1K | 106.3K | -26% | -$1.42M |
| 2025-09-11 | 2025-09-10 | MIAX | Brown Shelly | EVP, Strat. Planning, BD | F - Tax | $36.81 | -16.3K | 311.7K | -5% | -$599.4K | |
| I | 2025-08-28 | 2025-08-26 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | F - Tax | $33.90 | -192.2K | 1.85M | -9% | -$6.52M |
| 2025-08-28 | 2025-08-26 | MIAX | Brown Shelly | EVP, Strat. Planning, BD | F - Tax | $33.90 | -11.0K | 328.0K | -3% | -$374.5K | |
| DI | 2025-08-19 | 2025-08-15 | MIAX | Al-Bahar Talal Jassim | Dir | C - Cnv Deriv | — | +238.5K | 3.62M | +7% | — |
| D | 2025-08-19 | 2025-08-15 | MIAX | Eckert Kurt M. | Dir | C - Cnv Deriv | — | +46.9K | 167.4K | +39% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Jayabalan Harish | EVP, CRO, CISO | C - Cnv Deriv | — | +43.9K | 50.4K | +682% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | C - Cnv Deriv | — | +49.7K | 81.9K | +154% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Stahlin Paul | Dir | C - Cnv Deriv | — | +24.1K | 25.1K | +2,408% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Comly Barbara J. | EVP, GC, Corp. Sec | C - Cnv Deriv | — | +231.1K | 812.0K | +40% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Raymond Mark F. | Dir | C - Cnv Deriv | — | +43.8K | 43.8K | New | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Brown Shelly | EVP, Strat. Planning, BD | C - Cnv Deriv | — | +201.0K | 339.0K | +146% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Teekell Judson Gray | Dir | C - Cnv Deriv | — | +61.2K | 62.3K | +5,588% | — |
| DMI | 2025-08-19 | 2025-08-15 | MIAX | Teekell Judson Gray | Dir | C - Cnv Deriv | — | +68.1K | 86.5K | +370% | — |
| DMI | 2025-08-19 | 2025-08-15 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | C - Cnv Deriv | — | +135.9K | 2.04M | +7% | — |
| D | 2025-08-19 | 2025-08-15 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | C - Cnv Deriv | — | +574.0K | 586.0K | +4,783% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Schafer Douglas M. JR | EVP, CIO | C - Cnv Deriv | — | +387.8K | 537.8K | +259% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Schwarzkopf Cynthia | Dir | C - Cnv Deriv | — | +81.3K | 81.3K | New | — |
| DI | 2025-08-19 | 2025-08-15 | MIAX | Smollen John | EVP Traded Products, Relation | C - Cnv Deriv | — | +91.7K | 91.7K | New | — |
| D | 2025-08-19 | 2025-08-15 | MIAX | Smollen John | EVP Traded Products, Relation | C - Cnv Deriv | — | +73.2K | 68.2K | New | — |
| D | 2025-08-18 | 2025-08-15 | MIAX | Emmons Lance | EVP, CFO | C - Cnv Deriv | — | +57.6K | 94.2K | +158% | — |
| DI | 2025-08-18 | 2025-08-14 | MIAX | Emmons Lance | EVP, CFO | P - Purchase | $31.44 | +4 | 4 | New | +$125.76 |
| 2025-08-15 | 2025-08-13 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | P - Purchase | $23.00 | +12.0K | 12.0K | New | +$276.0K | |
| 2025-08-15 | 2025-08-13 | MIAX | Smollen John | EVP Traded Products, Relation | P - Purchase | $23.00 | +5,000 | 7,226 | +225% | +$115.0K | |
| D | 2025-08-15 | 2025-08-13 | MIAX | Comly Barbara J. | EVP, GC, Corp. Sec | F - Tax | $23.00 | -288.1K | 580.8K | -33% | -$6.63M |
| D | 2025-08-15 | 2025-08-13 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | P - Purchase | $23.00 | +100 | 32.2K | +0.3% | +$2,300 |
| 2025-08-15 | 2025-08-13 | MIAX | Nazarali Jamil | Dir | P - Purchase | $23.00 | +2,500 | 2,500 | New | +$57.5K |
Purchase Sale Sale after option exercise All abbreviations