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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: 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
    
 
HOWELL DENEEN C
DIR
JB
---
1,370
---
4/1/24
---
---
11,956
12.9
D
---
4/1/24 - 2:29:41 pm
2
    
 
HOWARD EVE N
DIR
JB
---
1,370
---
4/1/24
---
---
10,432
15.1
D
---
4/1/24 - 2:28:07 pm
3
    
 
FERGUSON LEWIS H
DIR
JB
---
1,370
---
4/1/24
---
---
19,623
7.5
D
---
4/1/24 - 12:47:23 pm
4
    
 
MONTAGNER MARC
DIR
JB
---
1,370
---
4/1/24
---
---
69,468
2.0
D
---
4/1/24 - 12:45:39 pm
5
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,370
---
4/1/24
---
---
11,731
13.2
D
---
4/1/24 - 12:43:54 pm
6
    
 
DE SA PAUL
DIR
JB
---
1,370
---
4/1/24
---
---
13,418
11.4
D
---
4/1/24 - 12:41:28 pm
7
    
 
BROOKS STEVEN D
DIR
JB
---
1,370
---
4/1/24
---
---
38,918
3.6
D
---
4/1/24 - 12:39:28 pm
8
    
 
BATH BLAKE
DIR
JB
---
1,370
---
4/1/24
---
---
13,093
11.7
D
---
4/1/24 - 12:37:14 pm
9
    
 
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
10
    
 
BROOKS STEVEN D
DIR
JS
---
300
---
3/22/24
---
---
38,618
-0.8
D
---
4/2/24 - 12:09:55 pm
11
1y
12
25%
24%
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
12
1y
12
25%
24%
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
13
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
14
1y
12
25%
24%
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
15
    
 
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
16
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$2,377,550
35,000
---
3/11/24
---
$67.93
4,759,377
-0.7
D
A
3/14/24 - 10:53:42 am
17
    
 
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
JS
$2,377,550
35,000
---
3/11/24
---
$67.93
4,759,377
-0.7
D
---
3/12/24 - 1:01:33 pm
18
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$640,326
8,826
---
3/6/24
---
$72.55
4,815,764
-0.2
D
---
3/8/24 - 12:00:01 pm
19
    
 
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
JS
---
21,387
---
3/6/24
---
---
4,794,377
-0.4
D
---
3/8/24 - 12:00:01 pm
20
1y
68
37%
7%
1
KILMER HENRY W
VP
S
$176,339
2,400
---
3/5/24
---
$73.47
41,000
-5.5
D
---
3/6/24 - 9:38:29 am
21
1y
37
27%
11%
1
BUBECK JAMES
O
AS
$147,108
1,920
---
3/1/24
---
$76.62
54,822
-3.4
D
10b
3/4/24 - 5:29:24 pm
22
    
 
CHANG JOHN B
VP,LO
JS
---
375
---
2/1/24
---
---
75,035
-0.5
D
---
2/1/24 - 5:17:48 pm
23
    
 
CHANG JOHN B
VP,LO
JB
---
375
---
2/1/24
---
---
375
New
I
---
2/1/24 - 5:17:48 pm
24
    
 
CHANG JOHN B
VP,LO
JB
---
39,600
---
1/3/24
---
---
75,410
110.6
D
A,R
1/30/24 - 12:09:27 pm
25
    
 
BUBECK JAMES
O
JB
---
19,600
---
1/3/24
---
---
56,742
52.8
D
R
1/5/24 - 2:40:36 pm
26
    
 
KILMER HENRY W
VP
JB
---
14,600
---
1/3/24
---
---
43,400
50.7
D
R
1/5/24 - 1:03:44 pm
27
    
 
WEED THADDEUS GERARD
VP,CFO
JB
---
49,400
---
1/3/24
---
---
98,100
101.4
D
R
1/5/24 - 12:35:59 pm
28
    
 
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
JB
---
180,000
---
1/3/24
---
---
4,920,590
3.8
D
R
1/5/24 - 12:20:15 pm
29
    
 
CHANG JOHN B
VP,LO
JB
---
39,600
---
1/3/24
---
---
77,910
103.4
D
R
1/5/24 - 12:14:47 pm
30
    
 
BROOKS STEVEN D
DIR
JB
---
1,403
---
1/1/24
---
---
37,548
3.9
D
A
1/3/24 - 2:32:33 pm
31
    
 
FERGUSON LEWIS H
DIR
JB
---
1,403
---
1/1/24
---
---
18,253
8.3
D
---
1/3/24 - 2:19:26 pm
32
    
 
HOWARD EVE N
DIR
JB
---
1,403
---
1/1/24
---
---
9,062
18.3
D
---
1/3/24 - 2:14:03 pm
33
    
 
DE SA PAUL
DIR
JB
---
1,403
---
1/1/24
---
---
12,048
13.2
D
---
1/3/24 - 9:33:40 am
34
    
 
HOWELL DENEEN C
DIR
JB
---
1,403
---
1/1/24
---
---
10,586
15.3
D
---
1/3/24 - 9:32:55 am
35
    
 
KENNEDY SHERYL LYNN
DIR
JB
---
1,403
---
1/1/24
---
---
10,361
15.7
D
---
1/3/24 - 9:31:47 am
36
    
 
BATH BLAKE
DIR
JB
---
1,403
---
1/1/24
---
---
11,723
13.6
D
---
1/3/24 - 9:31:13 am
37
    
 
MONTAGNER MARC
DIR
JB
---
1,403
---
1/1/24
---
---
68,098
2.1
D
---
1/3/24 - 9:30:25 am
38
    
 
BROOKS STEVEN D
DIR
JB
---
1,403
---
1/1/24
---
---
41,224
3.5
D
---
1/3/24 - 9:29:50 am
39
1y
22
59%
-5%
1
CHANG JOHN B
VP,LO
AS
$269,800
3,550
---
12/26/23
---
$76.00
38,310
-8.5
D
10b
12/28/23 - 9:37:30 am
40
1y
22
59%
-5%
1
CHANG JOHN B
VP,LO
AS
$74,000
1,000
---
12/21/23
---
$74.00
41,860
-2.3
D
10b
12/22/23 - 4:26:41 pm
41
    
 
CHANG JOHN B
VP,LO
JS
---
900
---
12/20/23
---
---
42,860
-2.1
D
---
12/20/23 - 4:03:05 pm
42
    
 
CHANG JOHN B
VP,LO
JB
---
900
---
12/20/23
---
---
450
---
I
---
12/20/23 - 4:03:05 pm
43
1y
22
59%
-5%
1
CHANG JOHN B
VP,LO
S
$36,000
500
---
12/14/23
---
$72.00
43,760
-1.1
D
---
12/15/23 - 10:23:11 am
44
1y
12
25%
24%
1
SCHAEFFER DAVE
CB,CEO,PR,DIR,BO
S
$1,399,800
20,000
---
12/13/23
---
$69.99
4,740,590
-0.4
D
---
12/14/23 - 10:14:20 am
45
    
 
CHANG JOHN B
VP,LO
JS
$207,000
3,000
---
12/11/23
---
$69.00
44,260
-6.3
D
---
12/11/23 - 4:23:35 pm
46
1y
68
37%
7%
1
KILMER HENRY W
VP
S
$326,132
4,800
---
12/7/23
---
$67.94
28,800
-14.3
D
---
12/8/23 - 3:56:14 pm
47
1y
37
27%
11%
1
BUBECK JAMES
O
S
$126,957
1,920
---
12/5/23
---
$66.12
37,142
-4.9
D
---
12/6/23 - 1:49:19 pm
48
1y
119
31%
19%
1
WEED THADDEUS GERARD
VP,CFO
S
$638,646
9,700
---
12/4/23
---
$65.84
48,700
-16.6
D
---
12/4/23 - 11:59:42 am
49
1y
37
27%
11%
1
BUBECK JAMES
O
S
$122,297
1,920
---
12/1/23
---
$63.70
39,062
-4.7
D
---
12/4/23 - 1:46:27 pm
50
    
 
WEED THADDEUS GERARD
VP,CFO
JB
---
4,850
---
12/1/23
---
---
58,400
9.1
D
R
12/4/23 - 9:57:54 am
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