| Date Filed | Type | Description |
| 08/21/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 08/15/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 06/08/2023 |
4
| SCHAEFFER DAVE (CHAIRMAN, CEO, AND PRESIDENT) has filed a Form 4 on COGENT COMMUNICATIONS HOLDINGS, INC.|
Txns:
| Sold 7,061 shares
@ $62.4385, valued at
$440.9k
|
|
| 06/08/2023 |
4
| SCHAEFFER DAVE (CHAIRMAN, CEO, AND PRESIDENT) has filed a Form 4 on COGENT COMMUNICATIONS HOLDINGS, INC.|
Txns:
| Sold 25,605 shares
@ $62.2501, valued at
$1.6M
Sold 42,334 shares
@ $62.3012, valued at
$2.6M
|
|
| 06/05/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 05/12/2023 |
4
| SCHAEFFER DAVE (CHAIRMAN, CEO, AND PRESIDENT) has filed a Form 4 on COGENT COMMUNICATIONS HOLDINGS, INC.|
Txns:
| Sold 35,000 shares
@ $65.382, valued at
$2.3M
|
|
| 01/04/2023 |
4
| SCHAEFFER DAVE (Chairman, President & CEO) has filed a Form 4 on COGENT COMMUNICATIONS HOLDINGS, INC.|
Txns:
| Granted 72,000 shares
@ $0
Granted 88,000 shares
@ $0 |
|
| 01/05/2022 |
4
| SCHAEFFER DAVE (Chairman, President & CEO) has filed a Form 4 on COGENT COMMUNICATIONS HOLDINGS, INC.|
Txns:
| Granted 72,000 shares
@ $0
Granted 88,000 shares
@ $0 |
|
| 02/25/2021 |
4
| Form 4 - Statement of changes in beneficial ownership of securities: |
| 01/19/2021 |
4
| Form 4 - Statement of changes in beneficial ownership of securities: |
| 03/04/2020 |
4
| Form 4 - Statement of changes in beneficial ownership of securities: |
| 02/18/2020 |
4
| Form 4 - Statement of changes in beneficial ownership of securities: |
| 05/01/2019 |
4
| SCHAEFFER DAVE (Chairman, President & CEO) has filed a Form 4 on COGENT COMMUNICATIONS HOLDINGS, INC.|
Txns:
| Granted 84,000 shares
@ $0
Granted 105,000 shares
@ $0 |
|
| 02/22/2018 |
4
| SCHAEFFER DAVE (Chairman, President & CEO) has filed a Form 4 on COGENT COMMUNICATIONS HOLDINGS, INC.|
Txns:
| Granted 84,000 shares
@ $0
Granted 105,000 shares
@ $0 |
|
| 05/03/2017 |
4
| Form 4 - Statement of changes in beneficial ownership of securities |
| 06/15/2016 |
4/A
| SCHAEFFER DAVE (Chairman, President & CEO) has filed a Form 4 on COGENT COMMUNICATIONS HOLDINGS, INC.|
Txns:
| Granted 170,000 shares
@ $0 |
|
| 05/05/2016 |
4
| Form 4 - Statement of changes in beneficial ownership of securities |
| 02/03/2011 |
4
| SCHAEFFER DAVE (Chairman, President & CEO) has filed a Form 4 on COGENT COMMUNICATIONS GROUP INC|
Txns:
| Granted 100,000 shares
@ $0 |
|
| 04/16/2010 |
4
| Form 4 - Statement of changes in beneficial ownership of securities |
| 12/30/2009 |
4
| SCHAEFFER DAVE (Chairman, President & CEO) has filed a Form 4 on COGENT COMMUNICATIONS GROUP INC|
Txns:
| Exercised 76,930 options to buy
@ $0 |
|
| 11/09/2009 |
4
| SCHAEFFER DAVE (Chairman & CEO) has filed a Form 4 on COGENT COMMUNICATIONS GROUP INC |
| 07/29/2009 |
4
| Form 4 -- Statement of changes in beneficial ownership of securities |
| 05/18/2009 |
4
| SCHAEFFER DAVE (Chairman & CEO) has filed a Form 4 on COGENT COMMUNICATIONS GROUP INC |
| 03/10/2009 |
4
| SCHAEFFER DAVE (Chairman & CEO) has filed a Form 4 on COGENT COMMUNICATIONS GROUP INC |
| 01/25/2007 |
5
| Form 5 -- Annual statement of changes in beneficial ownership of securities |
| 01/26/2006 |
5
| SCHAEFFER DAVE (Chairman, President & CEO) has filed a Form 5 on COGENT COMMUNICATIONS GROUP INC |