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+--------+
| 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).      Section 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
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        (City)                      (State)                           (Zip)


2.  Issuer Name and Ticker or Trading Symbol

AMERICAN TOWER CORPORATION ("AMT")
-----------------------------------

3.  IRS or Identification Number of Reporting Person, if an entity (Voluntary)


--------------

4.  Statement for Month/Year

SEPTEMBER 2001
---------------------------------------------------

5.  If Amendment, Date of Original (Month/Year)

---------------------------------


6.  Relationship of Reporting Person(s) 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



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1. Title              2. Trans-  3. Trans-       4. Securities Acquired (A)        5. Amount of         6. Owner-     7. Nature
   of                    action     action          or Disposed of (D)                Securities           ship          of In-
   Security              Date       Code            (Instr. 3, 4 and 5)               Beneficially         Form:         direct
   (Instr. 3)            (Month/    (Instr. 8)                                        Owned at             Direct        Bene-
                         Day/    -----------------------------------------------      End of               (D) or        ficial
                         Year)                                                        Month                Indirect      Owner-
                                  Code       V   Amount        (A) or    Price        (Instr. 3 and 4)     (I)           ship
                                                               (D)                                         (Instr. 4)    (Instr. 4)
------------------------------------------------------------------------------------------------------------------------------------
                                                                                           
Class A Common          9/7/01      P                1,800       A        $11.22
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P                  100       A        $11.28
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P                5,200       A        $11.26
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P               12,900       A        $11.30
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P                9,700       A        $11.34
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P                3,600       A        $11.39
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P               16,400       A        $11.40
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P                4,000       A        $11.10
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P               16,000       A        $11.29
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P               10,300       A        $11.23
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P                5,000       A        $11.25
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
Class A Common          9/07/01     P               15,000       A        $11.35       110,030(2)            D
Stock (1)
------------------------------------------------------------------------------------------------------------------------------------
                                                                                        25,050(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).


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 Deriv-
    Security (Instr. 3)               sion or             action              tion Code              ative Securities
                                      Exercise            Date                (Instr. 8)             Acquired (A) or
                                      Price of            (Month/                                    Disposed of (D)
                                      Deriv-              Day/                                       (Instr. 3, 4, and 5)
                                      ative               Year)
                                      Security

                                                                           ---------------------------------------------------
                                                                           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 Exer-     7. Title and Amount of       8. Price    9. Number       10. Owner-    11. Na-
                                 cisable and       Underlying Securities        of          of Deriv-        ship          ture
                                 Expiration        (Instr. 3 and 4)             Deriv-      ative            Form          of In-
                                 Date                                           ative       Secur-           of De-        direct
                                 (Month/Day/                                    Secur-      ities            rivative      Bene-
                                 Year)                                          ity         Bene-            Secu-         ficial
                                                                                (Instr.     ficially         rity:         Owner-
                               --------------------------------------------     5)          Owned            Direct        ship
                               Date     Expira-              Amount or                      at End           (D) or        (Instr.
                               Exer-    tion         Title   Number of                      of               Indi-         4)
                               cisable  Date                 Shares                         Month            rect (1)
                                                                                            (Instr. 4)       (Instr. 4)
------------------------------------------------------------------------------------------------------------------------------------
                                                                                               

------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------

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Explanation of Responses:

(1)  This Form 4 is being filed to report Mr. Dodge's purchase of 100,000 shares
     of Class A Common Stock on the open market on September 7, 2001.

(2)  The information set forth in column 5, " Amount of Securities Beneficially
     Owned at End of Month" includes information, as of September 7, 2001, 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 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).

Note:   File three copies of this Form, one of which must be manually signed.
If space is insufficient, see Instruction 6 for procedure.


/s/ Steven B. Dodge                        9/7/01
----------------------------------         ------
** Signature of Reporting Person           Date