Latest Insider Transactions at Miami International Holdings, Inc. (MIAX)
This section provides a real-time view of insider transactions for Miami International Holdings, Inc. (MIAX). The data is sourced from Form 4 filings with the SEC, which are filed by insiders of MIAMI INTERNATIONAL HOLDINGS, INC. to disclose their transactions in the company's securities. By reviewing this information, investors can gain insights into the trading activity of MIAMI INTERNATIONAL HOLDINGS, INC.'s insiders and make more informed investment decisions.
Insider Transaction List
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Sep 26
2025
|
Murray Stahl Director |
BUY
Open market or private purchase
|
Indirect |
4
+0.0%
|
$164
$41.76 P/Share
|
|
Sep 11
2025
|
John Smollen EVP Traded Products & Relation |
BUY
Exercise of conversion of derivative security
|
Direct |
150,000
+26.18%
|
$1,800,000
$12.0 P/Share
|
|
Sep 11
2025
|
John Smollen EVP Traded Products & Relation |
SELL
Payment of exercise price or tax liability
|
Direct |
52,054
-26.95%
|
$1,925,998
$37.39 P/Share
|
|
Sep 11
2025
|
Edward Deitzel EVP, CRO, CCO MIAX Exchanges |
BUY
Exercise of conversion of derivative security
|
Direct |
16,666
+11.94%
|
$199,992
$12.0 P/Share
|
|
Sep 10
2025
|
Shelly Brown EVP, Strat. Planning & BD |
SELL
Payment of exercise price or tax liability
|
Direct |
16,283
-4.96%
|
$586,188
$36.81 P/Share
|
|
Sep 09
2025
|
Harish Jayabalan EVP, CISO and CRO |
SELL
Payment of exercise price or tax liability
|
Direct |
1,980
-2.63%
|
$73,260
$37.3 P/Share
|
|
Sep 09
2025
|
Harish Jayabalan EVP, CISO and CRO |
BUY
Exercise of conversion of derivative security
|
Direct |
25,000
+13.57%
|
$300,000
$12.0 P/Share
|
|
Sep 09
2025
|
Edward Deitzel EVP, CRO, CCO MIAX Exchanges |
SELL
Payment of exercise price or tax liability
|
Direct |
38,090
-26.38%
|
$1,409,330
$37.3 P/Share
|
|
Sep 09
2025
|
Edward Deitzel EVP, CRO, CCO MIAX Exchanges |
BUY
Exercise of conversion of derivative security
|
Direct |
62,500
+30.21%
|
$750,000
$12.0 P/Share
|
|
Aug 28
2025
|
Murray Stahl Director |
BUY
Open market or private purchase
|
Indirect |
34,470
+0.75%
|
$1,240,920
$36.1 P/Share
|
|
Aug 26
2025
|
Shelly Brown EVP, Strat. Planning & BD |
SELL
Payment of exercise price or tax liability
|
Direct |
11,047
-3.26%
|
$364,551
$33.9 P/Share
|
|
Aug 26
2025
|
Thomas P. Gallagher Chairman & CEO |
SELL
Payment of exercise price or tax liability
|
Indirect |
192,220
-9.42%
|
$6,343,260
$33.9 P/Share
|
|
Aug 15
2025
|
Cynthia Schwarzkopf Director |
BUY
Conversion of derivative security
|
Direct |
81,308
+33.25%
|
-
|
|
Aug 15
2025
|
Mark F. Raymond Director |
BUY
Conversion of derivative security
|
Direct |
43,827
+33.03%
|
-
|
|
Aug 15
2025
|
Judson Gray Teekell Director |
BUY
Conversion of derivative security
|
Indirect |
68,131
+28.16%
|
-
|
|
Aug 15
2025
|
Judson Gray Teekell Director |
BUY
Conversion of derivative security
|
Direct |
61,242
+32.94%
|
-
|
|
Aug 15
2025
|
Thomas P. Gallagher Chairman & CEO |
BUY
Conversion of derivative security
|
Indirect |
135,895
+3.12%
|
-
|
|
Aug 15
2025
|
Thomas P. Gallagher Chairman & CEO |
BUY
Conversion of derivative security
|
Direct |
573,963
+49.48%
|
-
|
|
Aug 15
2025
|
Kurt M. Eckert Director |
BUY
Conversion of derivative security
|
Direct |
46,875
+21.88%
|
-
|
|
Aug 15
2025
|
Barbara J. Comly EVP, GC & Corporate Secretary |
BUY
Conversion of derivative security
|
Direct |
231,117
+12.44%
|
-
|
|
Aug 15
2025
|
Harish Jayabalan EVP, CISO and CRO |
BUY
Conversion of derivative security
|
Direct |
43,942
+23.64%
|
-
|
|
Aug 15
2025
|
Edward Deitzel EVP, CRO, CCO MIAX Exchanges |
BUY
Conversion of derivative security
|
Direct |
49,694
+19.07%
|
-
|
|
Aug 15
2025
|
Shelly Brown EVP, Strat. Planning & BD |
BUY
Conversion of derivative security
|
Direct |
200,975
+18.65%
|
-
|
|
Aug 15
2025
|
Talal Jassim Al Bahar Director |
BUY
Conversion of derivative security
|
Indirect |
238,462
+6.18%
|
-
|
|
Aug 15
2025
|
John Smollen EVP Traded Products & Relation |
BUY
Conversion of derivative security
|
Indirect |
91,666
+50.0%
|
-
|
|
Aug 15
2025
|
John Smollen EVP Traded Products & Relation |
BUY
Conversion of derivative security
|
Direct |
73,173
+51.77%
|
-
|
|
Aug 15
2025
|
Douglas M. Schafer Jr EVP and CIO |
BUY
Conversion of derivative security
|
Direct |
387,796
+20.98%
|
-
|
|
Aug 15
2025
|
Paul Stahlin Director |
BUY
Conversion of derivative security
|
Direct |
24,083
+32.23%
|
-
|
|
Aug 15
2025
|
Lance Emmons EVP and CFO |
BUY
Conversion of derivative security
|
Direct |
57,646
+37.97%
|
-
|
|
Aug 14
2025
|
Lance Emmons EVP and CFO |
BUY
Open market or private purchase
|
Indirect |
4
+50.0%
|
$124
$31.44 P/Share
|
|
Aug 13
2025
|
Mark I. Massad Director |
BUY
Open market or private purchase
|
Indirect |
4,500
+50.0%
|
$103,500
$23.0 P/Share
|
|
Aug 13
2025
|
Mark I. Massad Director |
BUY
Open market or private purchase
|
Direct |
3,500
+50.0%
|
$80,500
$23.0 P/Share
|
|
Aug 13
2025
|
Kenneth W. Lozier Director |
BUY
Open market or private purchase
|
Direct |
1,000
+50.0%
|
$23,000
$23.0 P/Share
|
|
Aug 13
2025
|
Thomas P. Gallagher Chairman & CEO |
BUY
Open market or private purchase
|
Direct |
12,000
+50.0%
|
$276,000
$23.0 P/Share
|
|
Aug 13
2025
|
Edward Deitzel EVP, CRO, CCO MIAX Exchanges |
BUY
Open market or private purchase
|
Direct |
100
+0.31%
|
$2,300
$23.0 P/Share
|
|
Aug 13
2025
|
John Smollen EVP Traded Products & Relation |
BUY
Open market or private purchase
|
Direct |
5,000
+40.9%
|
$115,000
$23.0 P/Share
|
|
Aug 13
2025
|
Barbara J. Comly EVP, GC & Corporate Secretary |
SELL
Payment of exercise price or tax liability
|
Direct |
288,075
-33.15%
|
$6,625,725
$23.0 P/Share
|
|
Aug 13
2025
|
Jamil Nazarali Director |
BUY
Open market or private purchase
|
Direct |
2,500
+50.0%
|
$57,500
$23.0 P/Share
|
|
Aug 13
2025
|
Paul Stahlin Director |
BUY
Open market or private purchase
|
Direct |
1,000
+50.0%
|
$23,000
$23.0 P/Share
|
|
Aug 13
2025
|
Harish Jayabalan EVP, CISO and CRO |
BUY
Open market or private purchase
|
Direct |
2,500
+27.95%
|
$57,500
$23.0 P/Share
|
|
Aug 13
2025
|
Lisa Moore Director |
BUY
Open market or private purchase
|
Direct |
5,500
+50.0%
|
$126,500
$23.0 P/Share
|