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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. 4 Insider Changes in Ownership
  3. 4 Insider Changes in Ownership
  4. 4 Insider Changes in Ownership
  5. 4 Insider Changes in Ownership
  6. 4 Insider Changes in Ownership
  7. DEFA14A Proxy Proxy Materials
  8. DEFA14A Proxy Proxy Materials
  9. 8-K/A Event Bylaws or fiscal year change
  10. UPLOAD Other SEC-generated Letter
  11. UPLOAD Other SEC-generated Letter
  12. DEF 14A Proxy Proxy Statement
  13. PRER14A Other PRER14A
  14. CORRESP Other Correspondence Between Filers and SEC Staff
  15. 4 Insider Changes in Ownership
  16. 4 Insider Changes in Ownership
  17. 4 Insider Changes in Ownership
  18. PRE 14A Proxy Proxy Statement (Preliminary)
  19. 4 Insider Changes in Ownership
  20. 4 Insider Changes in Ownership

Page 66 of 128 · 2,545 filings