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Detailed Insider History for:
MIAMI INTERNATIONAL HOLDINGS INC: MIAX
Price: 4/17/26 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$45.17 $51.38 $28.63 $4,187 93 1,384 0.0% 0.0% 51.56% 9.54%
Exch Sector Industry Sub-Industry
NYSE Finance, Insurance, And Real Estate Security And Commodity Brokers, Dealers, Exchanges, And Services Security Brokers, Dealers & Flotation Companies
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
GALLAGHER THOMAS P
CB,CEO,DIR
OS
$7,550,060
174,125
---
4/15/26
---
$43.36
1,723,275
-9.2
I
10b
4/17/26 - 4:17:10 pm
2
    
 
GALLAGHER THOMAS P
CB,CEO,DIR
OS
$2,179,632
49,900
---
4/15/26
---
$43.68
485,963
-9.3
D
10b
4/17/26 - 4:17:10 pm
3
    
 
GALLAGHER THOMAS P
CB,CEO,DIR
OE
$840,012
70,001
---
4/15/26
---
$12.00
1,897,400
3.8
I
10b
4/17/26 - 4:17:10 pm
4
    
 
COMLY BARBARA J
VP,GC,SEC
AS
$1,294,668
29,667
---
4/15/26
---
$43.64
843,844
-3.4
D
10b
4/17/26 - 4:15:46 pm
5
    
 
COMLY BARBARA J
VP,GC,SEC
OE
$356,004
29,667
---
4/15/26
---
$12.00
873,511
3.5
D
10b
4/17/26 - 4:15:46 pm
6
    
 
BECKELMAN JOHN
DIR
OB
$104,004
8,667
---
4/9/26
---
$12.00
8,667
New
D
---
4/10/26 - 6:41:12 pm
7
    
 
BROWN SHELLY
VP
OS
$691,543
16,434
---
4/8/26
---
$42.08
325,047
-4.8
D
10b
4/9/26 - 4:20:43 pm
8
    
 
BROWN SHELLY
VP
OE
$197,208
16,434
---
4/8/26
---
$12.00
341,481
5.1
D
10b
4/9/26 - 4:20:43 pm
9
    
 
DEITZEL EDWARD
VP,CCO
OS
$518,221
12,335
4/7/26
4/8/26
$42.00
$42.02
116,221
-9.6
D
10b
4/9/26 - 4:15:22 pm
10
    
 
DEITZEL EDWARD
VP,CCO
OE
$148,020
12,335
4/7/26
4/8/26
---
$12.00
123,793
11.1
D
10b
4/9/26 - 4:15:22 pm
11
    
 
BROWN SHELLY
VP
AS
$135,215
3,257
4/6/26
4/7/26
$41.33
$42.00
325,047
-1.0
D
A,10b
4/9/26 - 4:13:54 pm
12
    
 
BROWN SHELLY
VP
OE
$10,800
900
---
4/7/26
---
$12.00
325,947
0.3
D
A,10b
4/9/26 - 4:13:54 pm
13
    
 
BROWN SHELLY
VP
AS
$135,215
3,257
4/6/26
4/7/26
$41.33
$42.00
324,147
-1.0
D
10b
4/8/26 - 4:19:59 pm
14
    
 
TEEKELL JUDSON GRAY
DIR
AS
$108,000
2,700
---
4/2/26
---
$40.00
59,338
-4.4
D
10b
4/3/26 - 8:48:43 am
15
    
 
SMOLLEN JOHN
VP
JS
$13,575
362
---
3/30/26
---
$37.50
170,757
-0.2
D
R
4/1/26 - 4:48:07 pm
16
    
 
BROWN SHELLY
VP
OS*
$67,838
1,809
---
3/30/26
---
$37.50
297,388
-0.6
D
R
4/1/26 - 4:45:42 pm
17
    
 
BROWN SHELLY
VP
OE*
$499,947
30,016
---
3/30/26
$12.00
$19.84
327,404
10.1
D
R
4/1/26 - 4:45:42 pm
18
    
 
COMLY BARBARA J
VP,GC,SEC
JS
$54,300
1,448
---
3/30/26
---
$37.50
843,844
-0.2
D
R
4/1/26 - 4:43:34 pm
19
    
 
DEITZEL EDWARD
VP,CCO
JS
$26,513
707
---
3/30/26
---
$37.50
116,221
-0.6
D
R
4/1/26 - 4:43:06 pm
20
    
 
GALLAGHER THOMAS P
CB,CEO,DIR
JS
$782,813
20,875
---
3/30/26
---
$37.50
1,827,399
-1.1
I
R
4/1/26 - 4:42:43 pm
21
    
 
EMMONS LANCE
VP,CFO
JS
$313,125
8,350
---
3/30/26
---
$37.50
119,262
-6.5
D
R
4/1/26 - 4:42:13 pm
22
    
 
SOMMERS JILL E
DIR
3
---
---
---
3/25/26
---
---
---
---
---
---
3/31/26 - 4:28:37 pm
23
    
 
TEEKELL JUDSON GRAY
DIR
AS
$12,000
300
---
3/25/26
---
$40.00
62,038
-0.5
D
10b
3/26/26 - 4:32:02 pm
24
    
 
BROWN SHELLY
VP
AS
$1,019,906
25,932
---
3/23/26
---
$39.33
299,197
-8.0
D
10b
3/24/26 - 5:28:45 pm
25
    
 
ECKERT KURT M
DIR
OS
$1,478,763
37,917
---
3/19/26
---
$39.00
142,375
-21.0
D
10b
3/20/26 - 4:48:28 pm
26
    
 
ECKERT KURT M
DIR
OE
$155,004
12,917
---
3/19/26
---
$12.00
180,292
7.7
D
10b
3/20/26 - 4:48:28 pm
27
    
 
SCHAFER DOUGLAS M JR
VP,CIO
OS
$1,907,520
48,000
---
3/17/26
---
$39.74
396,681
-10.8
D
10b
3/18/26 - 4:23:57 pm
28
    
 
SCHAFER DOUGLAS M JR
VP,CIO
OE
$576,000
48,000
---
3/17/26
---
$12.00
444,681
12.1
D
10b
3/18/26 - 4:23:57 pm
29
    
 
COMLY BARBARA J
VP,GC,SEC
OB
$399,984
33,332
---
3/9/26
---
$12.00
845,292
4.1
D
---
3/10/26 - 4:40:50 pm
30
    
 
STAHL MURRAY
DIR
B
$310,176
7,200
---
3/5/26
---
$43.08
4,633,842
0.2
I
---
3/6/26 - 5:57:15 pm
31
    
 
STAHL MURRAY
DIR
B
$312,336
7,200
---
3/4/26
---
$43.38
4,626,642
0.2
I
A
3/6/26 - 5:52:47 pm
32
    
 
STAHL MURRAY
DIR
B
$312,336
7,200
---
3/4/26
---
$43.38
4,696,666
0.2
I
---
3/5/26 - 2:44:01 pm
33
    
 
STAHL MURRAY
DIR
S
$2,192,412
53,578
---
3/2/26
---
$40.92
4,619,442
-1.1
I
A
3/6/26 - 4:12:14 pm
34
    
 
STAHL MURRAY
DIR
OE
$2,192,353
112,656
---
3/2/26
$15.00
$20.50
4,673,020
2.5
I
A
3/6/26 - 4:12:14 pm
35
    
 
STAHL MURRAY
DIR
OS
$4,953,530
121,054
---
3/2/26
---
$40.92
4,689,466
-2.5
I
---
3/4/26 - 3:22:29 pm
36
    
 
STAHL MURRAY
DIR
OE
$4,942,353
250,156
---
3/2/26
$15.00
$20.00
4,810,520
5.5
I
---
3/4/26 - 3:22:29 pm
37
    
 
SCHAFER DOUGLAS M JR
VP,CIO
JS
$1,331,583
32,565
---
2/18/26
---
$40.89
396,681
-7.6
D
R
2/20/26 - 4:33:09 pm
38
    
 
DEITZEL EDWARD
VP,CCO
JS
$246,771
6,035
---
2/18/26
---
$40.89
116,928
-4.9
D
R
2/20/26 - 4:31:48 pm
39
    
 
BROWN SHELLY
VP
JS
$813,793
19,902
---
2/18/26
---
$40.89
325,129
-5.8
D
R
2/20/26 - 4:31:18 pm
40
    
 
SCHAFER DOUGLAS M JR
VP,CIO
JS
$4,486,372
108,550
---
2/10/26
---
$41.33
429,246
-20.2
D
R
2/12/26 - 4:40:35 pm
41
    
 
GALLAGHER THOMAS P
CB,CEO,DIR
JS
$2,070,633
50,100
---
2/10/26
---
$41.33
535,863
-8.6
D
R
2/12/26 - 4:33:23 pm
42
    
 
GALLAGHER THOMAS P
CB,CEO,DIR
JS
---
2,000
---
12/23/25
---
---
585,963
-0.3
D
---
12/29/25 - 8:46:55 am
43
    
 
BROWN SHELLY
VP
OB
$399,984
33,332
---
12/16/25
---
$12.00
345,031
10.7
D
---
12/17/25 - 4:23:25 pm
44
    
 
EMMONS LANCE
VP,CFO
OB
$499,964
33,456
---
12/16/25
$13.50
$19.84
127,612
35.5
D
---
12/17/25 - 4:22:33 pm
45
    
 
STAHL MURRAY
DIR
JB*
$99,999
2,439
---
12/12/25
---
$41.00
4,560,364
0.1
I
---
12/15/25 - 3:53:14 pm
46
    
 
STAHL MURRAY
DIR
B
$84
2
---
10/3/25
---
$41.97
4,557,925
0.0
I
---
10/6/25 - 4:20:10 pm
47
    
 
STAHL MURRAY
DIR
B
$167
4
---
9/26/25
---
$41.76
4,557,923
0.0
I
---
9/30/25 - 3:17:40 pm
48
    
 
SMOLLEN JOHN
VP
OS*
$1,946,299
52,054
---
9/11/25
---
$37.39
141,120
-26.9
D
---
9/15/25 - 5:14:05 pm
49
    
 
SMOLLEN JOHN
VP
OE*
$1,800,000
150,000
---
9/11/25
---
$12.00
193,174
347.4
D
---
9/15/25 - 5:14:05 pm
50
    
 
DEITZEL EDWARD
VP,CCO
OB
$949,992
79,166
9/9/25
9/11/25
---
$12.00
144,387
121.4
D
---
9/11/25 - 4:11:09 pm
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