Insider · CIK 0001775672
Chang John B.
Positions
- COGENT COMMUNICATIONS HOLDINGS, INC. · CCOI(8 filings)
Recent Filings (8)
- Form 4COGENT COMMUNICATIONS HOLDINGS, INC.+109,600 sh
- Form 4COGENT COMMUNICATIONS HOLDINGS, INC.+2,400 sh
- Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-398 sh
- Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-252 sh
- Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-357 sh
- Form 4COGENT COMMUNICATIONS HOLDINGS, INC.-357 sh
- Form 4COGENT COMMUNICATIONS HOLDINGS, INC.
- Form 4COGENT COMMUNICATIONS HOLDINGS, INC.+9,600 sh