Cite Filings / CCOI / 0000919574-07-005772

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SC 13G

Amended Statement of Ownership

COGENT COMMUNICATIONS HOLDINGS, INC. Filed 2007-12-10 Acc 0000919574-07-005772

Documents 1

SC 13G Amended Statement of Ownership , d835599_13-g.txt

Around this filing

2008-01-22 SC 13G Amended Statement of Ownership
2007-12-13 4 Changes in Ownership
2007-12-12 SC 13G/A Amended Statement of Ownership
2007-12-10 SC 13G Amended Statement of Ownership
2007-12-03 4 Changes in Ownership
2007-12-03 4 Changes in Ownership
2007-08-17 SC 13G Amended Statement of Ownership

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