/-------------------------------------/ / OMB APPROVAL / /-------------------------------------/ / OMB Number: 3235-0287 / / Expires: January 31, 2005 / / Estimated average burden / / hours per response 0.5 / /-------------------------------------/ +-------------+ | FORM 4 | U.S. SECURITIES AND EXCHANGE COMMISSION +-------------+ WASHINGTON, D.C. 20549 [_] Check this box if no longer subject STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP to Section 16. Form 4 or Form 5 Filed pursuant to Section 16(a) of the Securities obligations may Exchange Act of 1934, Section 17(a) of the continue. See Public Utility Holding Company Act of 1935 or Instruction 1(b). ection 30(f) of the Investment Company Act of 1940 (Print or Type Responses) ------------------------------------------------------------------------------- 1. Name and Address of Reporting Person* Dodge Steven B. ------------------------------------------------------------------------------- (Last) (First) (Middle) 116 Huntington Avenue ------------------------------------------------------------------------------- (Street) Boston Massachusetts 02116 ------------------------------------------------------------------------------- (City) (State) (Zip) 2. Issuer Name and Ticker or Trading Symbol American Tower Corporation (NYSE: AMT) ----------------------------------------------------------------- 3. IRS Identification Number of Reporting Person, if an Entity (Voluntary) ----------------------------------------------------------------- 4. Statement for Month/Year May 2002 ----------------------------------------------------------------- 5. If Amendment, Date of Original (Month/Year) ----------------------------------------------------------------- 6. Relationship of Reporting Person to Issuer (Check all applicable) [X] Director [X] Officer [_] 10% Owner [_] Other (give title below) (specify below) Chief Executive Officer and Chairman ----------------------------------------------------------------- 7. Individual or Joint/Group Filing (Check applicable line) [X] Form filed by One Reporting Person [ ] Form filed by More than One Reporting Person =============================================================================== Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned =============================================================================== 1. Title of 2. Trans- 3. Transaction 4. Securities Acquired (A) 5. Amount of 6. Ownership 7. Nature of Security action Code or Disposed of (D) Securities Form: Direct Indirect (Instr. 3) Date (Instr. 8) (Instr. 3,4 and 5 Beneficially (D) or Bene- (Month/ --------------------------------------------- Owned At End Indirect (I) ficial Day/ Code V Amount (A) or (D) Price of Month (Instr. 4) Ownership Year) (Instr. 3 and 4) (Instr. 4) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/3/02 P 100 A $4.82 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/3/02 P 9,900 A $4.83 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/3/02 P 10,000 A $4.85 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/3/02 P 10,000 A $4.90 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/3/02 P 1,400 A $4.94 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/3/02 P 8,600 A $4.99 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/3/02 P 5,200 A $5.00 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/3/02 P 4,800 A $5.03 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/6/02 P 2,200 A $4.84 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ 1. Title of 2. Trans- 3. Transaction 4. Securities Acquired (A) 5. Amount of 6. Ownership 7. Nature of Security action Code or Disposed of (D) Securities Form: Direct Indirect (Instr. 3) Date (Instr. 8) (Instr. 3,4 and 5 Beneficially (D) or Bene- (Month/ --------------------------------------------- Owned At End Indirect (I) ficial Day/ Code V Amount (A) or (D) Price of Month (Instr. 4) Ownership Year) (Instr. 3 and 4) (Instr. 4) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/6/02 P 5,400 A $4.85 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/6/02 P 1,000 A $4.86 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/6/02 P 2,200 A $4.87 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/6/02 P 1,400 A $4.88 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/6/02 P 8,900 A $4.90 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/6/02 P 1,000 A $4.91 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/6/02 P 2,000 A $4.92 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/6/02 P 900 A $4.95 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 100 A $4.53 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 1,000 A $4.54 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 1,000 A $4.55 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 3,900 A $4.56 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 1,000 A $4.59 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 100 A $4.60 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 2,900 A $4.64 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 3,000 A $4.65 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 2,000 A $4.66 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 2,000 A $4.69 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- Class A Common 5/7/02 P 1,200 A $4.70 Stock (1) ----------------------------------------------------------------------------------------------------------------------------------- 1. Title of 2. Trans- 3. Transaction 4. Securities Acquired (A) 5. Amount of 6. Ownership 7. Nature of Security action Code or Disposed of (D) Securities Form: Direct Indirect (Instr. 3) Date (Instr. 8) (Instr. 3,4 and 5 Beneficially (D) or Bene- (Month/ --------------------------------------------- Owned At End Indirect (I) ficial Day/ Code V Amount (A) or (D) Price of Month (Instr. 4) Ownership Year) (Instr. 3 and 4) (Instr. 4) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/7/02 P 1,400 A $4.74 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/7/02 P 2,400 A $4.75 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/7/02 P 1,000 A $4.80 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/7/02 P 1,000 A $4.85 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/7/02 P 1,000 A $4.90 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 1,100 A $3.85 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 900 A $3.86 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 1,600 A $3.89 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 14,400 A $3.90 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 5,000 A $3.91 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 8,000 A $3.92 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 5,000 A $3.93 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 1,000 A $3.94 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 6,000 A $3.95 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 2,000 A $3.97 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 5/17/02 P 3,000 A $3.98 Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common 3/17/02 P 2,000 A $4.00 849,530 (2) D Stock (1) ------------------------------------------------------------------------------------------------------------------------------------ 37,227 (2) I By Trusts (3) ------------------------------------------------------------------------------------------------------------------------------------ 5,000 (2) I By Spouse (3) ------------------------------------------------------------------------------------------------------------------------------------ Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If this form is filed by more than one reporting person, see Instruction 4(b)(v). (Over) SEC 1474 (3-99) FORM 4 (continued) =============================================================================== Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) =============================================================================== 1. Title of Derivative 2. Conver- 3. Trans- 4. Transac- 5. Number of Security (Instr. 3) sion or action tion Code Derivative Exercise Date (Instr. 8) Securities Price of (Month/ Acquired (A) or Derivative Day/ Disposed Security Year) of (D) (Instr. 3, 4, and 5) ----------------------------------------- Code V (A) (D) ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- =============================================================================== Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) -- continued =============================================================================== 6. Date Exercisable 7. Title and 8. Price of 9. Number of Derivative 10. Ownership 11. Nature of and Expiration Amount of Derivative Securities Beneficially Form of Indirect Date Underlying Security Owned at End of Month Derivative Beneficial (Month/ Securities (Instr. 5) (Instr.4) Security: Ownership Day/ (Instr. 3 and 4) Direct (D) (Instr.4) Year) of Indirect (I) ----------------------------------------------- Date Exercisable Expiration Title Amount Date or Number of Shares --------------------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------------------------- Explanation of Responses: (1) This Form 4 is being filed to report Mr. Dodge's purchase of an aggregate of 150,000 shares of Class A Common Stock on the open market in May, 2002. (2) The information set forth in column 5, "Amount of Securities Beneficially Owned at End of Month" includes information, as of May 17, 2002, only with respect to Mr. Dodge's beneficial ownership of Class A Common Stock. It does not include information about Mr. Dodge's beneficial ownership of shares of Class B Common Stock (which are convertible into Class A Common Stock on a one-for-one basis) and stock options to purchase Class A and Class B Common Stock because Mr. Dodge had no reportable transactions in these other classes of securities during the period for which this report is filed. (3) Mr. Dodge disclaims any beneficial ownership in shares owned by the trusts or his spouse. ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). /s/ Steven B. Dodge May 17, 2002 ---------------------------- ------------------------------------ Note: File three copies of this Form, one of which must be manually signed. If space provided is insufficient, see Instruction 6 for procedure. Page 2 SEC 1474 (3-99)