44 filings
144
John B. Chang
14 Mar 24
Notice of proposed sale of securities
10:26am
4/A
John B. Chang
14 Feb 24
COGENT COMMUNICATIONS / John B. Chang ownership change
8:46am
4
John B. Chang
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
CCOI
Cogent Communications Holdings Inc
5 Jan 24
COGENT COMMUNICATIONS / John B. Chang ownership change
12:14pm
4
npk7e8 hzue
28 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
9:37am
144
mm989ha
26 Dec 23
Notice of proposed sale of securities
5:47pm
4
pj1pp1pezf82w
22 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
4:26pm
144
q01ezs608syq eu769td
21 Dec 23
Notice of proposed sale of securities
6:32pm
4
51ehw8 lpnyx9e
20 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
4:03pm
4
yysqu8ki cru9urdd
15 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
10:23am
144
opw4a3psq3 t8
14 Dec 23
Notice of proposed sale of securities
5:41pm
4
5naj0vjhimau8gn52kz5
11 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
4:23pm
144
q4e guhwj
11 Dec 23
Notice of proposed sale of securities
4:02pm
4
tdkn 9f1nz
1 Dec 23
COGENT COMMUNICATIONS / John B. Chang ownership change
11:36am
4
cxs 2xph6brqx748m
4 May 23
COGENT COMMUNICATIONS / John B. Chang ownership change
12:08pm
144
iqq fyq5mkr
3 May 23
Notice of proposed sale of securities
8:36pm
4
7va 6eq7q
18 Apr 23
COGENT COMMUNICATIONS / John B. Chang ownership change
2:41pm
144
o2aa yolo2b
17 Apr 23
Notice of proposed sale of securities
6:14pm
4
0cm2ex7it84j
2 Feb 23
COGENT COMMUNICATIONS / John B. Chang ownership change
9:31am