Cite Filings / CCOI / 0001005477-07-002074

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4/A

Changes in Ownership

COGENT COMMUNICATIONS HOLDINGS, INC. Filed 2007-03-22 Acc 0001005477-07-002074

Documents 1

4/A Changes in Ownership , xslF345X02/edgar123.xml

Around this filing

2011-07-15 4/A Changes in Ownership
2007-03-23 4 Changes in Ownership
2007-03-23 4 Changes in Ownership
2007-03-22 4 Changes in Ownership
2007-03-22 4/A Changes in Ownership
2007-03-21 424B5 Prospectus
2006-09-14 4/A Changes in Ownership

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