-------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION ----------------------------- FORM 3 WASHINGTON, D.C. 20549 OMB APPROVAL -------- ----------------------------- INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES OMB Number: 3235-0104 Expires: December 31, 2001 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Estimated average burden Section 17(a) of the Public Utility Holding Company Act of 1935 or hours per response .... 0.5 (Print or Type Responses) Section 30(f) of the Investment Company Act of 1940 ----------------------------- ------------------------------------------------------------------------------------------------------------------------------------ 1. Name and Address of Reporting Person* 2. Date of Event Re- 4. Issuer Name AND Ticker or Trading Symbol quiring Statement SCHAEFFER DAVID (Month/Day/Year) COGENT COMMUNICATIONS GROUP, INC. (COI) ------------------------------------------------- ------------------------------------------------------------ (Last) (First) (Middle) 03/23/02 5. Relationship of Reporting Person(s) 6. If Amendment, Date ----------------------- to Issuer (Check all applicable) of Original 3. IRS or Social Se- X Director X 10% Owner (Month/Day/Year) curity Number of ---- ---- 02/04/02 1015 31ST STREET, N.W. Reporting Person Officer (give Other (specify --------------------- ------------------------------------------------- (Voluntary) X title below) below) 7. Individual or (Street) ---- ---- Joint/Group Filing (Check Applicable CHIEF EXECUTIVE OFFICER Line) --------------------------- Form filed by One X Reporting Person --- Form filed by More than One Reporting Person WASHINGTON DC 20007 --- ------------------------------------------------------------------------------------------------------------------------------------ (City) (State) (Zip) TABLE I -- NON-DERIVATIVE SECURITIES BENEFICIALLY OWNED ------------------------------------------------------------------------------------------------------------------------------------ 1. Title of Security 2. Amount of Securities 3. Ownership 4. Nature of Indirect Beneficial (Instr. 4) Beneficially Owned Form: Direct Ownership (Instr. 5) (Instr. 4) (D) or Indirect (I) (Instr. 5) ------------------------------------------------------------------------------------------------------------------------------------ COMMON STOCK, PAR VALUE $.001 PER SHARE 1,225,000 D ------------------------------------------------------------------------------------------------------------------------------------ COMMON STOCK, PAR VALUE $.001 PER SHARE 135,000 I (1) ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. (Over) * If the form is filed by more than one reporting person, SEE Instruction 5(b)(v). SEC 1473 (7-97) POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION CONTAINED IN THIS FORM ARE NOT REQUIRED TO RESPOND UNLESS THE FORM DISPLAYS A CURRENTLY VALID OMB CONTROL NUMBER. FORM 3 (CONTINUED) TABLE II - DERIVATIVE SECURITIES BENEFICIALLY OWNED (E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES) ------------------------------------------------------------------------------------------------------------------------------------ 1. Title of Derivative Security 2. Date Exer- 3. Title and Amount of Securities 4. Conver- 5. Owner- 6. Nature of Indirect (Instr. 4) cisable and Underlying Derivative Security sion or ship Beneficial Expiration (Instr. 4) Exercise Form of Ownership Date Price of Deriv- (Instr. 5) (Month/Day/ Deri- ative Year) vative Security: -------------------------------------------------- Security Direct Amount (D) or Date Expir- or Indirect Exer- ation Title Number (I) cisable Date of Shares (Instr. 5) ------------------------------------------------------------------------------------------------------------------------------------ SERIES C PARTICIPATING CONVERTIBLE PREFERRED STOCK, PAR VALUE $.001 COMMON STOCK, PAR VALUE PER SHARE 10/16/01 $.001 PER SHARE 1,604,235 10 INTO 1 D ------------------------------------------------------------------------------------------------------------------------------------ OPTION (RIGHT TO BUY) 12/1/02(2) 12/1/11 COMMON STOCK, PAR VALUE 478,700 $2.00 D $.001 PER SHARE ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ Explanation of Responses: (1) SHARES ARE HELD BY THE SCHAEFFER DESCENDANT'S TRUST. MR. SCHAEFFER DISCLAIMS BENEFICIAL OWNERSHIP OF SUCH SHARES. (2) 33% OF GRANT VESTS ON DATE OF GRANT (12/1/01) AND THE REMAINING PORTION VESTS QUARTERLY OVER THREE YEARS FROM DATE OF GRANT, SUBJECT TO CONTINUED EMPLOYMENT ON EACH VESTING DATE. THIS AMENDMENT TO FORM 3 IS FILED TO CORRECT A CLERICAL ERROR IN THE ORIGINAL FOOTNOTE NUMBER 2 WITH RESPECT TO VESTING PROVISIONS. /S/ DAVID SCHAEFFER APRIL 23, 2002 ------------------------------------- ---------------------- **Intentional misstatements or omissions of facts constitute Federal **Signature of Reporting Person Date Criminal Violations. SEE 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). David Schaeffer Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, SEE Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. Page 2 SEC 1473 (7-97)