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Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000895345-08-000123
Filing Date
2008-02-13
Accepted
2008-02-13 12:25:10
Documents
1
Group Members
PBK HOLDINGS, INC.PHILIP B. KORSANTZBI EQUITIES, LLC

Document Format Files

Seq Description Document Type Size
1 cogent.htm SC 13G/A 161235
  Complete submission text file 0000895345-08-000123.txt   163039
Mailing Address 153 EAST 53RD STREET 43RD FLOOR NEW YORK NY 10022
Business Address 153 EAST 53RD STREET 43RD FLOOR NEW YORK NY 10022 2122925900
ZIFF ASSET MANAGEMENT LP (Filed by) CIK: 0001054458 (see all company filings)

IRS No.: 000000000
Type: SC 13G/A

Mailing Address
Business Address 1015 31ST STREET WASHINGTON DC 20007 2022954200
COGENT COMMUNICATIONS GROUP INC (Subject) CIK: 0001158324 (see all company filings)

IRS No.: 522337274 | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-78106 | Film No.: 08602613
SIC: 7372 Services-Prepackaged Software