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MIAX
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Miami International Holdings, Inc.

MIAX · Financial Services · Miami International Holdings, Inc., through its subsidiaries, builds and operates various financial marketplaces in the United States

Miami International Holdings, Inc. (MIAX), in the Financial Services sector, has 60 disclosed filings on Paydirt over the trailing twelve months from 1 member of Congress and 11 corporate insiders: 5 purchases and 55 sales, 2 filed past the deadline. Filers took a median of 2 days from execution to disclosure, and the most recent trade was executed Sep 16 and filed Sep 17. The most active filer was Thomas P. Gallagher with 10 filings.

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Filings, ttm
60
5 buys · 55 sells · 2 late
Traders, ttm
12
1 congress · 11 insiders
Volume, ttmiDollar value disclosed in the window
$80.9M
estimated for Congress, as filed for insiders
Median delay
2d
execution to disclosure
Last traded
Sep 16
Filed Sep 17
ADViAverage daily dollar volume
$78.9M
market data
Share price · 12M
$37.84 (-4.3%)
$56.84$46.33$35.81Sep 22 2025Mar 23Sep 21

Adjusted for splits and dividends.

Volume by month
$15.9M$7.9M$0Oct 2024Apr 2025Oct 2025Apr 2026Aug 2025 · buys $518KSep 2025 · buys $1.2MMar 2026 · buys $935KMar 2026 · sells $11.6MApr 2026 · buys $33KApr 2026 · sells $12.3MMay 2026 · sells $10.6MJun 2026 · sells $9.5MJul 2026 · sells $12.8MAug 2026 · sells $15.9MSep 2026 · sells $7.4M
Buys $2.7M Sells $80.0M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed
TG Thomas P. Gallagher Chairman & CEO 10 filings SB Shelly Brown EVP, Chief Strategy Officer 7 filings BC Barbara J. Comly EVP, GC & Corporate Secretary 7 filings ED Edward Deitzel EVP, CRO, CCO MIAX Exchanges 6 filings MS Murray Stahl Director 6 filings DJ Douglas M. Schafer JR EVP and CIO 6 filings JT Judson Gray Teekell Director 6 filings KE Kurt M. Eckert Director 4 filings
Recent filings
Shelly BrownSALE EVP, Chief Strategy Officer $819K
21,217 sh × $38.61
Exec Sep 16
Filed Sep 17 · 4:43 PM ET
Thomas P. GallagherSALE Chairman & CEO $2.0M
47,000 sh × $42.43
Exec Sep 3
Filed Sep 4 · 4:35 PM ET
Barbara J. ComlySALE EVP, GC & Corporate Secretary $1.8M
44,445 sh × $40.49
Exec Sep 2
Filed Sep 4 · 4:31 PM ET
Edward DeitzelSALE EVP, CRO, CCO MIAX Exchanges $464K
11,000 sh × $42.21
Exec Sep 3
Filed Sep 4 · 4:28 PM ET
Douglas M. Schafer JRSALE EVP and CIO $1.9M
48,000 sh × $40.48
Exec Sep 2
Filed Sep 4 · 4:25 PM ET
Judson Gray TeekellSALE Director $353K
8,545 sh across 2 lots
Exec Sep 2
Filed Sep 4 · 4:21 PM ET
Thomas P. GallagherSALE Chairman & CEO $6.2M
149,700 sh × $41.13
Exec Aug 19
Filed Aug 20 · 4:12 PM ET
Cynthia SchwarzkopfSALE Director $214K
5,000 sh × $42.85
Exec Aug 17
Filed Aug 19 · 4:12 PM ET
Lance EmmonsSALE EVP and CFO $1.5M
35,000 sh × $42.83
Exec Aug 17
Filed Aug 19 · 4:10 PM ET
Judson Gray TeekellSALE Director $137K
3,000 sh × $45.79
Exec Aug 4
Filed Aug 6 · 4:10 PM ET
Harish JayabalanSALE EVP, CISO and CRO $918K
20,000 sh × $45.90
Exec Aug 4
Filed Aug 6 · 4:10 PM ET
Barbara J. ComlySALE EVP, GC & Corporate Secretary $2.0M
44,445 sh × $45.69
Exec Aug 4
Filed Aug 6 · 4:09 PM ET
Edward DeitzelSALE EVP, CRO, CCO MIAX Exchanges $504K
11,000 sh × $45.78
Exec Aug 4
Filed Aug 6 · 4:08 PM ET
Douglas M. Schafer JRSALE EVP and CIO $2.2M
48,000 sh × $45.71
Exec Aug 4
Filed Aug 6 · 4:06 PM ET
Thomas P. GallagherSALE Chairman & CEO $2.2M
48,334 sh × $45.69
Exec Aug 4
Filed Aug 6 · 4:05 PM ET
Cynthia SchwarzkopfSALE Director $210K
5,000 sh × $42.00
Exec Jul 15
Filed Jul 16 · 4:15 PM ET
Barbara J. ComlySALE EVP, GC & Corporate Secretary $1.2M
28,000 sh × $41.98
Exec Jul 13
Filed Jul 14 · 4:07 PM ET
Thomas P. GallagherSALE Chairman & CEO $3.0M
70,000 sh × $42.52
Exec Jul 13
Filed Jul 14 · 4:04 PM ET
Thomas P. GallagherSALE Chairman & CEO $3.0M
70,000 sh across 2 lots
Exec Jul 6
Filed Jul 7 · 5:03 PM ET
Harish JayabalanSALE EVP, CISO and CRO $842K
20,000 sh × $42.12
Exec Jul 6
Filed Jul 7 · 4:14 PM ET
Edward DeitzelSALE EVP, CRO, CCO MIAX Exchanges $462K
11,000 sh × $42.04
Exec Jul 6
Filed Jul 7 · 4:13 PM ET
Shelly BrownSALE EVP, Chief Strategy Officer $674K
16,000 sh × $42.13
Exec Jul 6
Filed Jul 7 · 4:10 PM ET
Judson Gray TeekellSALE Director $120K
3,000 sh × $40.00
Exec Jul 2
Filed Jul 7 · 4:09 PM ET
Kurt M. EckertSALE Director $207K
5,250 sh × $39.35
Exec Jul 2
Filed Jul 7 · 4:08 PM ET
Barbara J. ComlySALE EVP, GC & Corporate Secretary $1.2M
28,000 sh × $41.22
Exec Jul 2
Filed Jul 7 · 4:06 PM ET