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 JS
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Detailed Insider History for:
COGENT COMMUNICATIONS HOLDINGS INC: CCOI
Price: 3/28/25 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
$61.57 $86.76 $50.80 $3,040 49 391 6.5% 12.1% 95.50% 10.01%
Exch Sector Industry Sub-Industry
NasdaqGS Services Business Services Services- Prepackaged Software
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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
    
 
HOWELL DENEEN C
DIR
JB
---
1,352
---
3/31/25
---
---
17,689
8.3
D
---
4/1/25 - 10:07:54 am
2
    
 
MONTAGNER MARC
DIR
JB
---
1,352
---
3/31/25
---
---
85,201
1.6
D
---
3/31/25 - 5:23:05 pm
3
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,352
---
3/31/25
---
---
11,499
13.3
D
---
3/31/25 - 5:22:35 pm
4
    
 
HOWARD EVE N
DIR
JB
---
1,352
---
3/31/25
---
---
12,665
12.0
D
---
3/31/25 - 5:22:02 pm
5
    
 
FERGUSON LEWIS H
DIR
JB
---
1,352
---
3/31/25
---
---
20,004
7.2
D
---
3/31/25 - 5:20:34 pm
6
    
 
DE SA PAUL
DIR
JB
---
1,352
---
3/31/25
---
---
19,151
7.6
D
---
3/31/25 - 5:19:22 pm
7
    
 
BROOKS STEVEN D
DIR
JB
---
1,352
---
3/31/25
---
---
44,052
3.2
D
---
3/31/25 - 5:18:23 pm
8
    
 
BATH BLAKE
DIR
JB
---
1,352
---
3/31/25
---
---
12,606
12.0
D
---
3/31/25 - 5:17:50 pm
9
1y
22
41%
11%
1
FERGUSON LEWIS H
DIR
S
$66,313
956
---
3/12/25
---
$69.36
18,652
-4.9
D
---
3/13/25 - 5:43:50 pm
10
    
 
CHANG JOHN B
VP,LO
JS
---
357
---
3/10/25
---
---
78,358
-0.5
D
---
3/12/25 - 10:45:48 am
11
1y
69
38%
7%
1
KILMER HENRY W
VP
S
$174,168
2,400
---
3/7/25
---
$72.57
41,000
-5.5
D
---
3/10/25 - 12:07:43 pm
12
    
 
CHANG JOHN B
VP,LO
JS
---
715
---
3/5/25
---
---
78,715
-0.9
D
---
3/7/25 - 8:56:40 am
13
    
 
CHANG JOHN B
VP,LO
JB
---
715
---
3/5/25
---
---
2,585
38.2
I
---
3/7/25 - 8:56:40 am
14
1y
15
20%
21%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR
S
$4,305,978
60,000
---
3/4/25
---
$71.77
4,444,038
-1.3
D
---
3/5/25 - 4:40:00 pm
15
1y
38
26%
11%
1
BUBECK JAMES
O
S
$143,348
2,000
---
3/4/25
---
$71.67
57,142
-3.4
D
---
3/5/25 - 11:42:01 am
16
1y
119
31%
19%
1
WEED THADDEUS GERARD
VP,CFO
S
$353,110
4,900
---
3/3/25
---
$72.06
103,000
-4.5
D
---
3/4/25 - 9:22:10 am
17
    
 
KENNEDY SHERYL LYNN
DIR
S
$103,967
1,425
---
3/3/25
---
$72.96
10,147
-12.3
D
---
3/3/25 - 1:58:46 pm
18
    
 
BROOKS STEVEN D
DIR
JS
---
299
---
1/21/25
---
---
42,700
-0.7
D
---
1/22/25 - 4:39:56 pm
19
    
 
SCHAEFFER DAVE
CB,CEO,PR,DIR
JB
---
180,000
---
1/14/25
---
---
4,504,038
4.2
D
R
1/15/25 - 4:32:31 pm
20
    
 
KILMER HENRY W
VP
JB
---
9,600
---
1/9/25
---
---
43,400
28.4
D
R
1/13/25 - 4:58:51 pm
21
    
 
BUBECK JAMES
O
JB
---
9,600
---
1/9/25
---
---
59,142
19.4
D
R
1/13/25 - 4:58:12 pm
22
    
 
WEED THADDEUS GERARD
VP,CFO
JB
---
19,400
---
1/9/25
---
---
107,900
21.9
D
R
1/13/25 - 4:18:28 pm
23
    
 
CHANG JOHN B
VP,LO
JB
---
9,600
---
1/9/25
---
---
79,430
13.7
D
R
1/13/25 - 4:17:35 pm
24
    
 
FERGUSON LEWIS H
DIR
JB
---
1,254
---
1/1/25
---
---
19,608
6.8
D
---
1/3/25 - 4:46:36 pm
25
    
 
DE SA PAUL
DIR
JB
---
1,254
---
1/1/25
---
---
17,799
7.6
D
---
1/3/25 - 4:46:02 pm
26
    
 
BROOKS STEVEN D
DIR
JB
---
1,254
---
1/1/25
---
---
42,999
3.0
D
---
1/3/25 - 4:45:29 pm
27
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,254
---
1/1/25
---
---
11,572
12.2
D
---
1/2/25 - 4:18:58 pm
28
    
 
HOWELL DENEEN C
DIR
JB
---
1,254
---
1/1/25
---
---
16,337
8.3
D
---
1/2/25 - 4:09:47 pm
29
    
 
MONTAGNER MARC
DIR
JB
---
1,254
---
1/1/25
---
---
83,849
1.5
D
---
1/2/25 - 4:07:53 pm
30
    
 
HOWARD EVE N
DIR
JB
---
1,254
---
1/1/25
---
---
11,313
12.5
D
---
1/2/25 - 4:07:17 pm
31
    
 
BATH BLAKE
DIR
JB
---
1,254
---
1/1/25
---
---
11,254
12.5
D
---
1/2/25 - 4:06:41 pm
32
    
 
CHANG JOHN B
VP,LO
JS
---
970
---
12/18/24
---
---
69,830
-1.4
D
---
12/19/24 - 4:58:03 pm
33
    
 
CHANG JOHN B
VP,LO
JB
---
970
---
12/18/24
---
---
935
---
I
---
12/19/24 - 4:58:03 pm
34
    
 
SCHAEFFER DAVE
CB,CEO,PR,DIR
JS
$1,517,548
20,000
---
12/16/24
---
$75.88
4,228,038
-0.5
D
---
12/17/24 - 4:03:22 pm
35
1y
69
38%
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
36
1y
38
26%
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
37
    
 
CHANG JOHN B
VP,LO
JS
---
900
---
12/4/24
---
---
70,800
-1.3
D
---
12/6/24 - 4:20:39 pm
38
1y
38
26%
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
39
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
40
    
 
KILMER HENRY W
VP
JS
---
2,400
---
12/1/24
---
---
38,600
-5.9
D
R
12/4/24 - 10:16:45 am
41
    
 
BUBECK JAMES
O
JB
---
2,400
---
12/1/24
---
---
53,382
4.7
D
R
12/3/24 - 5:54:05 pm
42
    
 
WEED THADDEUS GERARD
VP,CFO
JB
---
2,400
---
12/1/24
---
---
93,300
2.6
D
R
12/3/24 - 4:10:13 pm
43
    
 
CHANG JOHN B
VP,LO
JB
---
2,400
---
12/1/24
---
---
71,700
3.5
D
R
12/3/24 - 4:09:18 pm
44
1y
15
20%
21%
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
45
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
46
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
47
1y
24
58%
-4%
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
48
    
 
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
49
    
 
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
50
    
 
BROOKS STEVEN D
DIR
JB
---
1,452
---
10/1/24
---
---
41,745
3.6
D
A
10/22/24 - 5:06:10 pm
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