Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001775672-25-000005
Filing Date
2025-12-02
Accepted
2025-12-02 16:26:51
Documents
1
Period of Report
2025-12-01

Document Format Files

Seq Description Document Type Size
1 form4-12022025_091248.html 4  
1 form4-12022025_091248.xml 4 4296
  Complete submission text file 0001775672-25-000005.txt   5790
Mailing Address 2450 N STREET, NW WASHINGTON DC 20037
Business Address 2450 N STREET, NW WASHINGTON DC 20037 2022954200
COGENT COMMUNICATIONS HOLDINGS, INC. (Issuer) CIK: 0001158324 (see all company filings)

EIN.: 522337274 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 4899 Communications Services, NEC
(CF Office: 06 Technology)

Mailing Address 2450 N ST NW 4TH FLOOR WASHINGTON DC 20037
Business Address
Chang John B. (Reporting) CIK: 0001775672 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-51829 | Film No.: 251543540