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Ownership
4
COGENT COMMUNICATIONS HOLDINGS, INC.
1 May 19
4
COGENT COMMUNICATIONS HOLDINGS, INC.
4 Mar 19
4
COGENT COMMUNICATIONS HOLDINGS, INC.
4 Dec 18
4
COGENT COMMUNICATIONS HOLDINGS, INC.
13 Sep 18
4
COGENT COMMUNICATIONS HOLDINGS, INC.
12 Sep 18
4
COGENT COMMUNICATIONS HOLDINGS, INC.
4 Sep 18
4
COGENT COMMUNICATIONS HOLDINGS, INC.
1 Jun 18
4
COGENT COMMUNICATIONS HOLDINGS, INC.
1 Mar 18
4
COGENT COMMUNICATIONS HOLDINGS, INC.
22 Feb 18
4
COGENT COMMUNICATIONS HOLDINGS, INC.
1 Dec 17