SCHAEFFER DAVE

Related Filers (2)

Other (10)

144
Wednesday, 12/13/2023
Filing for proposed sale of securities under Rule 144
144
Thursday, 11/30/2023
Filing for proposed sale of securities under Rule 144
144
Tuesday, 11/14/2023
Filing for proposed sale of securities under Rule 144
144
Friday, 9/15/2023
Filing for proposed sale of securities under Rule 144
144
Monday, 9/11/2023
Filing for proposed sale of securities under Rule 144
144
Thursday, 9/7/2023
Filing for proposed sale of securities under Rule 144
144
Monday, 8/21/2023
Filing for proposed sale of securities under Rule 144
144
Tuesday, 8/15/2023
Filing for proposed sale of securities under Rule 144
144
Monday, 6/5/2023
Filing for proposed sale of securities under Rule 144
144
Wednesday, 5/10/2023
Filing for proposed sale of securities under Rule 144
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Ownership (48)

4
Friday, 1/5/2024
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 12/14/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Friday, 12/1/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Friday, 12/1/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 11/16/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Monday, 9/18/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 9/14/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Tuesday, 9/12/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 6/8/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 6/8/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Friday, 5/12/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/4/2023
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/5/2022
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 2/25/2021
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Tuesday, 1/19/2021
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/4/2020
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/18/2020
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Wednesday, 5/1/2019
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 2/22/2018
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Wednesday, 5/3/2017
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4/A
Wednesday, 6/15/2016
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 5/5/2016
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Thursday, 8/7/2014
COGENT COMMUNICATIONS HOLDINGS, INC.: Statement of changes in beneficial ownership of securities
4
Friday, 4/20/2012
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 2/3/2011
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 4/16/2010
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 12/30/2009
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 11/9/2009
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/29/2009
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 5/18/2009
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/10/2009
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/2/2008
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 4/30/2007
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
5
Thursday, 1/25/2007
COGENT COMMUNICATIONS GROUP INC: Annual statement of changes in beneficial ownership of securities
4
Friday, 12/1/2006
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 9/14/2006
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4/A
Thursday, 9/14/2006
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Thursday, 6/8/2006
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
5
Thursday, 1/26/2006
COGENT COMMUNICATIONS GROUP INC: Annual statement of changes in beneficial ownership of securities
4
Monday, 11/7/2005
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 10/28/2005
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 2/16/2005
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Friday, 9/10/2004
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4/A
Friday, 10/31/2003
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 10/14/2003
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
4
Monday, 8/4/2003
COGENT COMMUNICATIONS GROUP INC: Statement of changes in beneficial ownership of securities
3/A
Wednesday, 4/24/2002
COGENT COMMUNICATIONS GROUP INC: Initial statement of beneficial ownership of securities
3
Wednesday, 3/13/2002
COGENT COMMUNICATIONS GROUP INC: Initial statement of beneficial ownership of securities
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