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CIK 0001158324 · Large accelerated filer

COGENT COMMUNICATIONS HOLDINGS, INC.

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Ticker
CCOI
Exchange
Nasdaq
Industry
Communications Services, NEC
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
522337274
Phone
2022954200
Business address
2450 N STREET, NW, WASHINGTON, DC, 20037
Former names
COGENT COMMUNICATIONS GROUP INC
  1. 4 Insider Changes in Ownership
  2. SC 13D Stake Beneficial Ownership Report
  3. SC 13D Stake Beneficial Ownership Report
  4. SC 13D Stake Beneficial Ownership Report
  5. SC 13D Stake Beneficial Ownership Report
  6. 8-K Event Item 5 · Item 7
  7. 4 Insider Changes in Ownership
  8. 4 Insider Changes in Ownership
  9. 4 Insider Changes in Ownership
  10. 4 Insider Changes in Ownership
  11. 4 Insider Changes in Ownership
  12. 4 Insider Changes in Ownership
  13. 4 Insider Changes in Ownership
  14. 4 Insider Changes in Ownership
  15. 4 Insider Changes in Ownership
  16. SC 14D9/A Deal SC 14D9/A
  17. SC 14D9 Deal SC 14D9
  18. DEF 14C Other DEF 14C
  19. PRER14C Other PRER14C
  20. 8-K Event Item 9

Page 124 of 128 · 2,545 filings