WARBURG PINCUS ASSET MANAGEMENT INC
SC 13G/A, 1999-02-05
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                           (Amendment No. _____2____)*

                      Apartment Investment & Management Co.
                      -------------------------------------
                                (Name of Issuer)

                                  Common Stock
                                  ------------
                         (Title of Class of Securities)

                                    03748R10
                                    --------
                                 (CUSIP Number)

                               December 31, 1998
                               -----------------
             (Date of Event Which Requires Filing of this Statement)

        Check the appropriate box to designate the rule pursuant to which
this Schedule is filed:

                                [X] Rule 13d-1(b)
                                [ ] Rule 13d-1(c)
                                [ ] Rule 13d-1(d)

  *The remainder of this cover page shall be filled out for a reporting person's
  initial filing on this form with respect to the subject class of securities,
  and for any subsequent amendment containing information which would alter the
  disclosures provided in a prior cover page.

  The information required on the remainder of this cover page shall not be
  deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
  Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
  the Act but shall be subject to all other provisions of the Act (however, see
  the Notes).



                                Page 1 of 4 Pages


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- ------------------------                            ----------------------------
CUSIP No.  03748R10              13G                Page  2 of   4  Pages
                                      
- ------------------------                            ----------------------------

- ---------- ---------------------------------------------------------------------
        1  NAME OF REPORTING PERSON
           S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

           Warburg Pincus Asset Management, Inc.                    13-2673503
- ---------- ---------------------------------------------------------------------
        2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                                                                    (a)
                                                                    (b)
           Not applicable
- ---------- ---------------------------------------------------------------------
        3  SEC USE ONLY

- ---------- ---------------------------------------------------------------------
        4  CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
- -------------------- ------ ----------------------------------------------------
                         5  SOLE VOTING POWER

                            Not applicable
                     ------ ----------------------------------------------------
     NUMBER OF           6  SHARED VOTING POWER
      SHARES
   BENEFICIALLY             Not applicable
     OWNED BY
       EACH          ------ ----------------------------------------------------
     REPORTING           7  SOLE DISPOSITIVE POWER
      PERSON  
       WITH                 Not Applicable
           
                     ------ ----------------------------------------------------
                         8  SHARED DISPOSITIVE POWER

                            Not applicable
- ---------- ---------------------------------------------------------------------
        9  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           Not applicable
- ---------- ---------------------------------------------------------------------
       10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
           (SEE INSTRUCTIONS)
           [  ]
           Not Applicable
- ---------- ---------------------------------------------------------------------
       11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

           Not applicable
- ---------- ---------------------------------------------------------------------
       12  TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
           IA

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


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Item 1(a):                Name of Issuer:
- ----------                ---------------

                          Apartment Investment & Management Co.

Item 1(b):                Address of Issuer's Principal Executive Offices:
- ----------                ------------------------------------------------

                          1873 South Bellaire St.
                          Denver, CO  80222-4348


Item 2(a)                 Name of Person Filing
- ---------                 ---------------------

                          Warburg Pincus Asset Management, Inc.


Item 2(b):                Address of Principal Business Office:
- ----------                -------------------------------------

                          466 Lexington Avenue, New York, New York 10017


Item 2(c):                Citizenship:
- ----------                ------------

                          Delaware


Item 2(d):                Title of Class of Securities:
- ----------                -----------------------------

                          Common Stock


Item 2(e):                CUSIP Number:
- ----------                -------------

                          03748R10


Item 3:                   If the reporting person is an investment adviser in
- -------                   accordance with ss. 240.13d-1(b)(1)(ii)(E), check
                          this box.  [X]

Item 4:                   Ownership:
- -------                   ----------

                          Not applicable


Item 5:                   Ownership of Five Percent or Less of a Class:
- -------                   ---------------------------------------------

                          If this statement is being filed to report
                          the fact that as of the date hereof the
                          reporting person has ceased to be the
                          beneficial owner of more than five percent of
                          the class of securities, check the following [X]


Item 6:                   Ownership of More than Five Percent on Behalf of
- -------                   Another Person:
                          ------------------------------------------------

                          Not applicable



                                Page 3 of 4 Pages

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Item 7:                   Identification and Classification of the
- -------                   Subsidiary Which Acquired the Security Being
                          Reported on By the Parent Holding Company:
                          --------------------------------------------

                          Not Applicable.


Item 8:                   Identification and Classification of 
- -------                   Members of the Group:
                          ------------------------------------

                          Not Applicable.


Item 9:                   Notice of Dissolution of Group:
- -------                   -------------------------------

                          Not Applicable.


Item 10:                  Certification:
- --------                  --------------

                          Inasmuch as the reporting person is no longer
                          the beneficial owner of more than five
                          percent of the number of shares outstanding
                          of the issuer of the securities referenced
                          herein, the reporting person has no further
                          reporting obligation under Section 13(d) of
                          the Act with respect to such issuer.


                                    SIGNATURE
                                    ---------

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Dated: February 1, 1999




                                         By: /s/ Linda S. Iovan
                                            ----------------------
                                            Name:  Linda S. Iovan
                                            Title: Vice President



                                Page 4 of 4 Pages



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