0001567619-21-014348.txt : 20210803 0001567619-21-014348.hdr.sgml : 20210803 20210803164359 ACCESSION NUMBER: 0001567619-21-014348 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210802 FILED AS OF DATE: 20210803 DATE AS OF CHANGE: 20210803 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: KUMMER RAYMOND B CENTRAL INDEX KEY: 0001166982 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-51829 FILM NUMBER: 211140536 MAIL ADDRESS: STREET 1: 1232 FETON CT NW CITY: WASHINGTON STATE: DC ZIP: 20007 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: COGENT COMMUNICATIONS HOLDINGS, INC. CENTRAL INDEX KEY: 0001158324 STANDARD INDUSTRIAL CLASSIFICATION: COMMUNICATION SERVICES, NEC [4899] IRS NUMBER: 522337274 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2450 N STREET, NW CITY: WASHINGTON STATE: DC ZIP: 20037 BUSINESS PHONE: 2022954200 MAIL ADDRESS: STREET 1: 2450 N STREET, NW CITY: WASHINGTON STATE: DC ZIP: 20037 FORMER COMPANY: FORMER CONFORMED NAME: COGENT COMMUNICATIONS GROUP INC DATE OF NAME CHANGE: 20010828 4 1 doc1.xml FORM 4 X0306 4 2021-08-02 0 0001158324 COGENT COMMUNICATIONS HOLDINGS, INC. CCOI 0001166982 KUMMER RAYMOND B 2450 N ST. NW WASHINGTON DC 20037 0 1 0 0 CTO; VP Optical Transport common stock 2021-08-02 4 S 0 3572 78.2279 D 43582 D common stock 2021-08-03 4 S 0 382 78.20 D 43200 D The sale of shares of common stock reported here was implemented pursuant to Dr. Kummer's structured sale plan (10b5-1). /s/Raymond B. Kummer 2021-08-03