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 JB
 JS
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Detailed Insider History for:
COGENT COMMUNICATIONS HOLDINGS INC: CCOI
Price: 12/13/24 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
$77.29 $86.76 $50.80 $3,789 49 394 5.2% 12.2% 98.68% 9.94%
Exch Sector Industry Sub-Industry
NasdaqGS Services Business Services Services- Prepackaged Software
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#
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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
1y
68
37%
7%
1
KILMER HENRY W
VP
S
$362,942
4,800
---
12/12/24
---
$75.61
33,800
-12.4
D
---
12/13/24 - 9:19:48 am
2
1y
37
27%
11%
1
BUBECK JAMES
O
S
$147,065
1,920
---
12/9/24
---
$76.60
49,542
-3.7
D
---
12/10/24 - 6:00:22 pm
3
    
 
CHANG JOHN B
VP,LO
JS
---
900
---
12/4/24
---
---
70,800
-1.3
D
---
12/6/24 - 4:20:39 pm
4
1y
37
27%
11%
1
BUBECK JAMES
O
S
$156,329
1,920
---
12/2/24
---
$81.42
51,462
-3.6
D
R
12/3/24 - 5:54:05 pm
5
1y
119
31%
19%
1
WEED THADDEUS GERARD
VP,CFO
S
$391,584
4,800
---
12/2/24
---
$81.58
88,500
-5.1
D
R
12/3/24 - 4:10:13 pm
6
    
 
KILMER HENRY W
VP
JS
---
2,400
---
12/1/24
---
---
38,600
-5.9
D
R
12/4/24 - 10:16:45 am
7
    
 
BUBECK JAMES
O
JB
---
2,400
---
12/1/24
---
---
53,382
4.7
D
R
12/3/24 - 5:54:05 pm
8
    
 
WEED THADDEUS GERARD
VP,CFO
JB
---
2,400
---
12/1/24
---
---
93,300
2.6
D
R
12/3/24 - 4:10:13 pm
9
    
 
CHANG JOHN B
VP,LO
JB
---
2,400
---
12/1/24
---
---
71,700
3.5
D
R
12/3/24 - 4:09:18 pm
10
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR
S
$4,999,480
60,000
11/25/24
11/26/24
---
$82.69
4,248,038
-1.4
D
---
11/27/24 - 4:01:31 pm
11
1y
11
36%
7%
1
BATH BLAKE
DIR
S
$520,565
6,220
---
11/21/24
---
$83.69
10,000
-38.3
D
---
11/21/24 - 4:02:22 pm
12
1y
22
41%
11%
1
FERGUSON LEWIS H
DIR
S
$69,171
846
---
11/18/24
---
$81.76
18,354
-4.4
D
---
11/19/24 - 11:27:46 am
13
1y
22
59%
-5%
1
CHANG JOHN B
VP,LO
S
$183,328
2,280
---
11/12/24
---
$80.41
69,300
-3.2
D
---
11/12/24 - 4:19:28 pm
14
    
 
HOWARD EVE N
DIR
S
$287,070
3,500
---
11/11/24
---
$82.02
10,059
-25.8
D
---
11/14/24 - 1:32:44 pm
15
    
 
KENNEDY SHERYL LYNN
DIR
S
$108,777
1,350
---
11/11/24
---
$80.58
10,318
-11.6
D
---
11/12/24 - 8:46:48 am
16
    
 
BROOKS STEVEN D
DIR
JB
---
1,452
---
10/1/24
---
---
41,745
3.6
D
A
10/22/24 - 5:06:10 pm
17
    
 
HOWARD EVE N
DIR
JB
---
1,452
---
10/1/24
---
---
13,559
12.0
D
---
10/2/24 - 5:51:17 pm
18
    
 
DE SA PAUL
DIR
JB
---
1,452
---
10/1/24
---
---
16,545
9.6
D
---
10/2/24 - 9:53:08 am
19
    
 
HOWELL DENEEN C
DIR
JB
---
1,452
---
10/1/24
---
---
15,083
10.7
D
---
10/2/24 - 9:52:26 am
20
    
 
MONTAGNER MARC
DIR
JB
---
1,452
---
10/1/24
---
---
82,595
1.8
D
---
10/2/24 - 9:51:52 am
21
    
 
BATH BLAKE
DIR
JB
---
1,452
---
10/1/24
---
---
16,220
9.8
D
---
10/1/24 - 5:02:40 pm
22
    
 
FERGUSON LEWIS H
DIR
JB
---
1,452
---
10/1/24
---
---
19,200
8.2
D
---
10/1/24 - 4:51:41 pm
23
    
 
BROOKS STEVEN D
DIR
JB
---
1,452
---
10/1/24
---
---
42,045
3.6
D
---
10/1/24 - 4:50:13 pm
24
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,452
---
10/1/24
---
---
11,668
14.2
D
---
10/1/24 - 4:47:33 pm
25
1y
22
59%
-5%
1
CHANG JOHN B
VP,LO
S
$100,338
1,400
---
9/12/24
---
$71.67
71,580
-1.9
D
---
9/13/24 - 4:45:33 pm
26
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$4,663,555
65,000
---
9/10/24
---
$71.75
4,308,038
-1.5
D
---
9/11/24 - 4:18:05 pm
27
    
 
KENNEDY SHERYL LYNN
DIR
S
$110,139
1,550
---
9/10/24
---
$71.06
10,216
-13.2
D
---
9/11/24 - 4:17:26 pm
28
1y
37
27%
11%
1
BUBECK JAMES
O
AS
$133,958
1,920
---
9/4/24
---
$69.77
50,982
-3.6
D
10b
9/5/24 - 4:44:53 pm
29
1y
68
37%
7%
1
KILMER HENRY W
VP
S
$166,824
2,400
---
9/4/24
---
$69.51
36,200
-6.2
D
---
9/5/24 - 4:10:39 pm
30
1y
119
31%
19%
1
WEED THADDEUS GERARD
VP,CFO
S
$167,222
2,400
---
9/3/24
---
$69.68
90,900
-2.6
D
---
9/3/24 - 4:11:00 pm
31
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$4,368,960
60,000
---
8/27/24
---
$72.82
4,373,038
-1.4
D
---
8/28/24 - 12:00:03 pm
32
1y
22
59%
-5%
1
CHANG JOHN B
VP,LO
S
$152,070
2,055
---
8/23/24
---
$74.00
72,980
-2.7
D
---
8/26/24 - 4:11:28 pm
33
1y
22
41%
11%
1
FERGUSON LEWIS H
DIR
S
$112,554
1,550
---
8/22/24
---
$72.62
17,748
-8.0
D
---
8/26/24 - 10:10:52 am
34
    
 
HOWELL DENEEN C
DIR
JB
---
1,675
---
7/1/24
---
---
13,631
14.0
D
---
7/2/24 - 4:12:31 pm
35
    
 
FERGUSON LEWIS H
DIR
JB
---
1,675
---
7/1/24
---
---
19,298
9.5
D
---
7/2/24 - 2:11:18 pm
36
    
 
BATH BLAKE
DIR
JB
---
1,675
---
7/1/24
---
---
14,768
12.8
D
---
7/2/24 - 10:34:48 am
37
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,675
---
7/1/24
---
---
11,766
16.6
D
---
7/2/24 - 10:33:07 am
38
    
 
BROOKS STEVEN D
DIR
JB
---
1,675
---
7/1/24
---
---
40,593
4.3
D
---
7/2/24 - 10:29:02 am
39
    
 
DE SA PAUL
DIR
JB
---
1,675
---
7/1/24
---
---
15,093
12.5
D
---
7/1/24 - 4:58:01 pm
40
    
 
HOWARD EVE N
DIR
JB
---
1,675
---
7/1/24
---
---
12,107
16.1
D
---
7/1/24 - 4:21:33 pm
41
    
 
MONTAGNER MARC
DIR
JB
---
1,675
---
7/1/24
---
---
81,143
2.1
D
---
7/1/24 - 4:01:59 pm
42
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$3,106,830
60,000
---
6/14/24
---
$51.78
4,433,038
-1.3
D
---
6/17/24 - 10:22:53 am
43
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$3,276,000
60,000
---
6/12/24
---
$54.60
4,493,038
-1.3
D
---
6/13/24 - 11:13:11 am
44
1y
2
100%
19%
2
MONTAGNER MARC
DIR
B
$526,130
10,000
---
6/11/24
---
$52.61
79,468
14.4
D
---
6/11/24 - 4:38:54 pm
45
1y
119
31%
19%
1
WEED THADDEUS GERARD
VP,CFO
S
$126,252
2,400
---
6/10/24
---
$52.60
93,300
-2.5
D
---
6/10/24 - 1:50:05 pm
46
1y
68
37%
7%
1
KILMER HENRY W
VP
S
$134,400
2,400
---
6/6/24
---
$56.00
38,600
-5.9
D
---
6/7/24 - 10:16:49 am
47
1y
37
27%
11%
1
BUBECK JAMES
O
AS
$113,221
1,920
---
6/3/24
---
$58.97
52,902
-3.5
D
10b
6/4/24 - 4:16:42 pm
48
    
 
KENNEDY SHERYL LYNN
DIR
S
$94,782
1,640
---
5/23/24
---
$57.79
10,091
-14.0
D
---
5/23/24 - 4:58:20 pm
49
1y
22
41%
11%
1
FERGUSON LEWIS H
DIR
S
$117,802
2,000
---
5/21/24
---
$58.90
17,623
-10.2
D
---
5/22/24 - 6:11:45 pm
50
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$2,972,000
50,000
---
5/13/24
---
$59.44
4,553,038
-1.1
D
---
5/14/24 - 4:42:04 pm
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