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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
COGENT COMMUNICATIONS HOLDINGS INC: CCOI
Price: 4/25/25 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
$53.53 $86.76 $47.54 $2,643 49 489 7.5% 11.6% 97.26% 9.93%
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
    
 
BROOKS STEVEN D
DIR
JB
---
1,452
---
10/1/24
---
---
41,745
3.6
D
A
10/22/24 - 5:06:10 pm
2
    
 
HOWARD EVE N
DIR
JB
---
1,452
---
10/1/24
---
---
13,559
12.0
D
---
10/2/24 - 5:51:17 pm
3
    
 
DE SA PAUL
DIR
JB
---
1,452
---
10/1/24
---
---
16,545
9.6
D
---
10/2/24 - 9:53:08 am
4
    
 
HOWELL DENEEN C
DIR
JB
---
1,452
---
10/1/24
---
---
15,083
10.7
D
---
10/2/24 - 9:52:26 am
5
    
 
MONTAGNER MARC
DIR
JB
---
1,452
---
10/1/24
---
---
82,595
1.8
D
---
10/2/24 - 9:51:52 am
6
    
 
BATH BLAKE
DIR
JB
---
1,452
---
10/1/24
---
---
16,220
9.8
D
---
10/1/24 - 5:02:40 pm
7
    
 
FERGUSON LEWIS H
DIR
JB
---
1,452
---
10/1/24
---
---
19,200
8.2
D
---
10/1/24 - 4:51:41 pm
8
    
 
BROOKS STEVEN D
DIR
JB
---
1,452
---
10/1/24
---
---
42,045
3.6
D
---
10/1/24 - 4:50:13 pm
9
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,452
---
10/1/24
---
---
11,668
14.2
D
---
10/1/24 - 4:47:33 pm
10
1y
24
58%
-4%
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
11
1y
15
20%
21%
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
12
    
 
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
13
1y
38
26%
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
14
1y
69
38%
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
15
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
16
1y
15
20%
21%
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
17
1y
24
58%
-4%
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
18
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
19
    
 
HOWELL DENEEN C
DIR
JB
---
1,675
---
7/1/24
---
---
13,631
14.0
D
---
7/2/24 - 4:12:31 pm
20
    
 
FERGUSON LEWIS H
DIR
JB
---
1,675
---
7/1/24
---
---
19,298
9.5
D
---
7/2/24 - 2:11:18 pm
21
    
 
BATH BLAKE
DIR
JB
---
1,675
---
7/1/24
---
---
14,768
12.8
D
---
7/2/24 - 10:34:48 am
22
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,675
---
7/1/24
---
---
11,766
16.6
D
---
7/2/24 - 10:33:07 am
23
    
 
BROOKS STEVEN D
DIR
JB
---
1,675
---
7/1/24
---
---
40,593
4.3
D
---
7/2/24 - 10:29:02 am
24
    
 
DE SA PAUL
DIR
JB
---
1,675
---
7/1/24
---
---
15,093
12.5
D
---
7/1/24 - 4:58:01 pm
25
    
 
HOWARD EVE N
DIR
JB
---
1,675
---
7/1/24
---
---
12,107
16.1
D
---
7/1/24 - 4:21:33 pm
26
    
 
MONTAGNER MARC
DIR
JB
---
1,675
---
7/1/24
---
---
81,143
2.1
D
---
7/1/24 - 4:01:59 pm
27
1y
15
20%
21%
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
28
1y
15
20%
21%
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
29
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
30
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
31
1y
69
38%
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
32
1y
38
26%
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
33
    
 
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
34
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
35
1y
15
20%
21%
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
36
    
 
HOWELL DENEEN C
DIR
JB
---
1,370
---
4/1/24
---
---
11,956
12.9
D
---
4/1/24 - 2:29:41 pm
37
    
 
HOWARD EVE N
DIR
JB
---
1,370
---
4/1/24
---
---
10,432
15.1
D
---
4/1/24 - 2:28:07 pm
38
    
 
FERGUSON LEWIS H
DIR
JB
---
1,370
---
4/1/24
---
---
19,623
7.5
D
---
4/1/24 - 12:47:23 pm
39
    
 
MONTAGNER MARC
DIR
JB
---
1,370
---
4/1/24
---
---
69,468
2.0
D
---
4/1/24 - 12:45:39 pm
40
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,370
---
4/1/24
---
---
11,731
13.2
D
---
4/1/24 - 12:43:54 pm
41
    
 
DE SA PAUL
DIR
JB
---
1,370
---
4/1/24
---
---
13,418
11.4
D
---
4/1/24 - 12:41:28 pm
42
    
 
BROOKS STEVEN D
DIR
JB
---
1,370
---
4/1/24
---
---
38,918
3.6
D
---
4/1/24 - 12:39:28 pm
43
    
 
BATH BLAKE
DIR
JB
---
1,370
---
4/1/24
---
---
13,093
11.7
D
---
4/1/24 - 12:37:14 pm
44
    
 
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
JS
---
50,165
---
4/1/24
---
---
4,603,038
-1.1
D
---
4/1/24 - 12:35:11 pm
45
    
 
BROOKS STEVEN D
DIR
JS
---
300
---
3/22/24
---
---
38,618
-0.8
D
---
4/2/24 - 12:09:55 pm
46
1y
15
20%
21%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$1,680,633
26,174
---
3/15/24
---
$64.21
4,653,203
-0.6
D
---
3/18/24 - 11:12:26 am
47
1y
15
20%
21%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$2,025,600
30,000
---
3/13/24
---
$67.52
4,679,377
-0.6
D
---
3/15/24 - 9:19:20 am
48
1y
119
31%
19%
1
WEED THADDEUS GERARD
VP,CFO
S
$163,608
2,400
---
3/12/24
---
$68.17
95,700
-2.4
D
A
3/14/24 - 11:03:24 am
49
1y
15
20%
21%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$3,406,000
50,000
---
3/12/24
---
$68.12
4,709,377
-1.1
D
A
3/14/24 - 10:58:05 am
50
    
 
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
JS
$3,406,000
50,000
---
3/12/24
---
$68.12
4,709,377
-1.1
D
---
3/12/24 - 5:29:59 pm
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