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Cogent Communications (CCOI) SEC Filings & 10K Form

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Recent Cogent Communications SEC Filings

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DateFilerForm TypeView
09/05/2025
3:33 PM		Cogent Communications (Issuer)
KILMER HENRY W (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/04/2025
10:14 AM		Cogent Communications (Subject)
KILMER HENRY W (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/03/2025
9:44 AM		Cogent Communications (Issuer)
Harris Mark Andrew (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
09/03/2025
8:36 AM		Cogent Communications (Issuer)
Harris Mark Andrew (Reporting)
Form 3
Initial statement of beneficial ownership of securities  
08/21/2025
3:54 PM		Cogent Communications (Issuer)
Kennedy Sheryl Lynn (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/21/2025
9:29 AM		Cogent Communications (Subject)
Kennedy Sheryl Lynn (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/15/2025
3:30 PM		Cogent Communications (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/14/2025
4:31 PM		Cogent Communications (Subject)
Turtle Creek Asset Management Inc. (Filed by)
Form SCHEDULE 13G
08/11/2025
4:11 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/08/2025
4:03 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
08/07/2025
6:29 AM		Cogent Communications (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
07/18/2025
1:31 PM		BlackRock, Inc. (Filed by)
Cogent Communications (Subject)
Form SCHEDULE 13G/A
07/01/2025
4:43 PM		Cogent Communications (Issuer)
Howell Deneen C (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/01/2025
4:44 PM		Cogent Communications (Issuer)
Kennedy Sheryl Lynn (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/01/2025
4:45 PM		Cogent Communications (Issuer)
Montagner Marc (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/01/2025
4:57 PM		BROOKS STEVEN D (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
07/01/2025
4:58 PM		Cogent Communications (Issuer)
Howard Eve N (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/01/2025
4:41 PM		Cogent Communications (Issuer)
de Sa Paul (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
07/01/2025
4:41 PM		Cogent Communications (Issuer)
FERGUSON Lewis H (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/16/2025
4:30 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/16/2025
1:23 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/16/2025
9:03 AM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/13/2025
4:16 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/13/2025
11:36 AM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/12/2025
4:49 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/12/2025
4:29 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/12/2025
9:11 AM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/11/2025
4:37 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/11/2025
3:50 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/10/2025
5:15 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/10/2025
4:27 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/10/2025
1:55 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/09/2025
5:23 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025
4:14 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/09/2025
3:40 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/09/2025
3:46 PM		Cogent Communications (Issuer)
KILMER HENRY W (Reporting)
Form 4/A
06/09/2025
3:48 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025
3:49 PM		Cogent Communications (Issuer)
KILMER HENRY W (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025
3:51 PM		Cogent Communications (Issuer)
WEED THADDEUS GERARD (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025
8:09 AM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/06/2025
3:16 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/06/2025
8:16 AM		BUBECK JAMES (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
06/04/2025
4:44 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/04/2025
3:05 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/04/2025
3:06 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/04/2025
8:36 AM		BUBECK JAMES (Reporting)
Cogent Communications (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/03/2025
3:51 PM		Cogent Communications (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/03/2025
3:28 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
06/03/2025
8:17 AM		Cogent Communications (Subject)
KILMER HENRY W (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/02/2025
12:39 PM		Cogent Communications (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/29/2025
4:19 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/29/2025
3:30 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/28/2025
3:56 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/28/2025
3:29 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/28/2025
12:17 PM		Cogent Communications (Subject)
FERGUSON Lewis H (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/27/2025
3:37 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/23/2025
3:30 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/22/2025
4:04 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/21/2025
3:46 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/21/2025
3:20 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
3:21 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/19/2025
12:42 PM		Cogent Communications (Issuer)
WEED THADDEUS GERARD (Reporting)
Form 4/A
05/14/2025
3:17 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
05/14/2025
2:31 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/13/2025
11:01 AM		Cogent Communications (Subject)
Kennedy Sheryl Lynn (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/08/2025
1:38 PM		Cogent Communications (Filer)
Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans  
05/08/2025
11:19 AM		Cogent Communications (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/08/2025
10:47 AM		Cogent Communications (Filer)
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
05/08/2025
6:18 AM		Cogent Communications (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/04/2025
4:06 PM		Cogent Communications (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/01/2025
9:07 AM		Cogent Communications (Issuer)
Howell Deneen C (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/31/2025
4:20 PM		Cogent Communications (Issuer)
FERGUSON Lewis H (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/31/2025
4:22 PM		Cogent Communications (Issuer)
Howard Eve N (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/31/2025
4:22 PM		Cogent Communications (Issuer)
Kennedy Sheryl Lynn (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/31/2025
4:23 PM		Cogent Communications (Issuer)
Montagner Marc (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/14/2025
4:46 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/13/2025
4:43 PM		Cogent Communications (Issuer)
FERGUSON Lewis H (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/13/2025
11:26 AM		Cogent Communications (Filer)
Form PRE 14A
03/12/2025
9:45 AM		Chang John B. (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/11/2025
4:56 PM		Cogent Communications (Subject)
FERGUSON Lewis H (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/10/2025
11:07 AM		Cogent Communications (Issuer)
KILMER HENRY W (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/07/2025
7:56 AM		Chang John B. (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/05/2025
10:42 AM		BUBECK JAMES (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
03/04/2025
5:11 PM		Cogent Communications (Subject)
SCHAEFFER DAVE (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/04/2025
11:47 AM		Cogent Communications (Subject)
KILMER HENRY W (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/04/2025
10:19 AM		BUBECK JAMES (Reporting)
Cogent Communications (Subject)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/04/2025
8:22 AM		Cogent Communications (Issuer)
WEED THADDEUS GERARD (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2025
4:30 PM		Cogent Communications (Subject)
WEED THADDEUS GERARD (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/03/2025
12:58 PM		Cogent Communications (Issuer)
Kennedy Sheryl Lynn (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
03/03/2025
12:40 PM		Cogent Communications (Subject)
Kennedy Sheryl Lynn (Reporting)
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/28/2025
9:13 AM		Cogent Communications (Filer)
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
02/27/2025
6:30 AM		Cogent Communications (Filer)
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/22/2025
3:39 PM		BROOKS STEVEN D (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2025
3:32 PM		Cogent Communications (Issuer)
SCHAEFFER DAVE (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/13/2025
3:58 PM		BUBECK JAMES (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/13/2025
3:58 PM		Cogent Communications (Issuer)
KILMER HENRY W (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/13/2025
3:17 PM		Chang John B. (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/13/2025
3:18 PM		Cogent Communications (Issuer)
WEED THADDEUS GERARD (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
01/03/2025
3:45 PM		BROOKS STEVEN D (Reporting)
Cogent Communications (Issuer)
Form 4
Statement of changes in beneficial ownership of securities  
01/03/2025
3:46 PM		Cogent Communications (Issuer)
de Sa Paul (Reporting)
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)


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This page (NASDAQ:CCOI) was last updated on 9/15/2025 by MarketBeat.com Staff
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