44 filings
144
John B. Chang
14 Mar 24
Notice of proposed sale of securities
10:26am
4/A
CCOI
Cogent Communications Holdings Inc
14 Feb 24
COGENT COMMUNICATIONS / John B. Chang ownership change
8:46am
4
CCOI
Cogent Communications Holdings Inc
1 Feb 24
COGENT COMMUNICATIONS / John B. Chang ownership change
5:17pm
4/A
John B. Chang
30 Jan 24
COGENT COMMUNICATIONS / John B. Chang ownership change
12:09pm
4
John B. Chang
5 Jan 24
COGENT COMMUNICATIONS / John B. Chang ownership change
12:14pm
4
6m4td29g138n
28 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
9:37am
144
myh8kl61hc7 r3z32z
26 Dec 23
Notice of proposed sale of securities
5:47pm
4
fjx3iz4ac2h45bo6xr
22 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
4:26pm
144
sdjf7j96oyod
21 Dec 23
Notice of proposed sale of securities
6:32pm
4
9a8758xqgm7ttn
20 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
4:03pm
4
0m902 tge1qzc
15 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
10:23am
144
78g3k4
14 Dec 23
Notice of proposed sale of securities
5:41pm
4
hi4sx
11 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
4:23pm
144
a5uhpu7350z8
11 Dec 23
Notice of proposed sale of securities
4:02pm
4
rpc7r cel16
1 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
11:36am
4
32joa
4 May 23
COGENT COMMUNICATIONS / John B. Chang ownership change
12:08pm
144
kqb38q7 ayq51glwhxec
3 May 23
Notice of proposed sale of securities
8:36pm
4
8e4mim
18 Apr 23
COGENT COMMUNICATIONS / John B. Chang ownership change
2:41pm
144
m9sr n4fyo6b6r6xt
17 Apr 23
Notice of proposed sale of securities
6:14pm
4
6i5k0ba4gh3jb
2 Feb 23
COGENT COMMUNICATIONS / John B. Chang ownership change
9:31am