CHARTWELL INVESTMENT PARTNERS/PA
SC 13G, 2000-02-14
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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. _______)*


                     Tweeter Home Entertainment Group, Inc.
- - --------------------------------------------------------------------------------
                                (Name of Issuer)

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

                                   901167106
- - --------------------------------------------------------------------------------
                                 (CUSIP Number)

             December 31, 1999 - Filing pursuant to Rule 13d-1(b)(2)
- - --------------------------------------------------------------------------------
             (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 in 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>   2


CUSIP NO.  901167106

<TABLE>
<CAPTION>
  <S>      <C>
- - --------------------------------------------------------------------------------
   1.      NAMES OF REPORTING PERSONS.
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY).

           Chartwell Investment Partners
           23-2891243
- - --------------------------------------------------------------------------------
   2.      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE
           INSTRUCTIONS)
                                                                (a)   [ ]
                                                                (b)   [X]

- - --------------------------------------------------------------------------------
   3.      SEC USE ONLY

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

           Pennsylvania
- - --------------------------------------------------------------------------------
                               5.     SOLE VOTING POWER

         NUMBER OF
          SHARES                      -0- shares
       BENEFICIALLY          ---------------------------------------------------
         OWNED BY              6.     SHARED VOTING POWER
           EACH
         REPORTING
          PERSON                      769,650 shares
           WITH:             ---------------------------------------------------
                               7.     SOLE DISPOSITIVE POWER


                                      -0- shares
                             ---------------------------------------------------
                               8.     SHARED DISPOSITIVE POWER

                                      769,650 shares
- - --------------------------------------------------------------------------------
   9.      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           769,650 shares

- - --------------------------------------------------------------------------------
   10.     CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
           (SEE INSTRUCTIONS)

           Not applicable
- - --------------------------------------------------------------------------------
   11.     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           5.02 %

- - --------------------------------------------------------------------------------
   12.     TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

           IA
- - --------------------------------------------------------------------------------
</TABLE>


<PAGE>   3


Item 1.   (a)      Name of Issuer:
                   Tweeter Home Entertainment Group, Inc. (the "Issuer")

          (b)      Address of Issuer's Principal Executive Offices:
                   10 Pequot Way, Canton, MA 02021

Item 2.   (a)      Names of Person Filing:
                   Chartwell Investment Partners

          (b)      Address of Principal Business Office or, if None, Residence:
                   1235 Westlakes Drive, Suite 330, Berwyn, Pennsylvania 19312

          (c)      Citizenship:
                   Pennsylvania

          (d)      Title of Class of Securities:
                   Common Stock

          (e)      CUSIP Number: 901167106

Item 3.   If this statement is filed pursuant to Sections 240.13d-1(b) or
          240.13d-2(b) or (c), check whether the person filing is a:

          (a)      [ ]      Broker or dealer registered under section 15 of the
                            Act (15 U.S.C. 78o).
          (b)      [ ]      Bank as defined in section 3(a)(6) of the Act
                            (15 U.S.C. 78c).
          (c)      [ ]      Insurance company as defined in section 3(a)(19) of
                            the Act (15 U.S.C. 78c).
          (d)      [ ]      Investment company registered under section 8 of the
                            Investment Company Act of 1940 (15 U.S.C. 80a-8).
          (e)      [X]      An investment adviser in accordance with Section
                            240.13d-1(b)(1)(ii)(E).
          (f)      [ ]      An employee benefit plan or endowment fund in
                            accordance with Section 240.13d-1(b)(1)(ii)(F).
          (g)      [ ]      A parent holding company or control person in
                            accordance with Section 240.13d-1(b)(1)(ii)(G).
          (h)      [ ]      A savings association as defined in section 3(b) of
                            the Federal Deposit Insurance Act (12 U.S.C. 1813).
          (i)      [ ]      A church plan that is excluded from the definition
                            of an investment company under section 3(c)(14) of
                            the Investment Company Act of 1940
                            (15 U.S.C. 80a-3).
          (j)      [ ]      Group, in accordance with Section
                            240.13d-1(b)(1)(ii)(J).

Item 4.   Ownership.

          Provide the following information regarding the aggregate number and
          percentage of the class of securities of the issuer identified in
          Item 1.

          (a)      Amount beneficially owned:         769,650
          (b)      Percentage of class:               5.02%
          (c)      Number of shares as to which the person has:
                   (i)      Sole power to vote or to direct the vote:    0
                   (ii)     Shared power to vote or to direct the vote:  769,650


<PAGE>   4

                   (iii)    Sole power to dispose or to direct the
                            disposition of:                           0
                   (iv)     Shared power to dispose or to direct
                            the disposition of:                       769,650

          Instruction. For computations regarding securities which represent a
          right to acquire an underlying security see Section 240.13d-3(d)(1).

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 [ ].

          Instruction: Dissolution of a group requires a response to this item.

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

          If any other person is known to have the right to receive or the power
          to direct the receipt of dividends from, or the proceeds from the sale
          of, such securities, a statement to that effect should be included in
          response to this item and, if such interest relates to more than five
          percent of the class, such person should be identified. A listing of
          the shareholders of an investment company registered under the
          Investment Company Act of 1940 or the beneficiaries of an employee
          benefit plan, pension fund or endowment fund is not required.

          Not applicable.

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

          If a parent holding company has filed this schedule, pursuant to Rule
          13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit
          stating the identity and the Item 3 classification of the relevant
          subsidiary. If a parent holding company has filed this schedule
          pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating
          the identification of the relevant subsidiary.

          Not applicable.

Item 8.   Identification and Classification of Members of the Group.

          If a group has filed this schedule pursuant to Section
          240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an
          exhibit stating the identity and Item 3 classification of each member
          of the group. If a group has filed this schedule pursuant to Section
          240.13d-1(c) or Section 240.13d-1(d), attach an exhibit stating the
          identity of each member of the group.

          Not applicable.

Item 9.   Notice of Dissolution of Group.

          Notice of dissolution of a group may be furnished as an exhibit
          stating the date of the dissolution and that all further filings with
          respect to transactions in the security reported

<PAGE>   5

          on will be filed, if required, by members of the group, in their
          individual capacity. See Item 5.

          Not applicable.

Item 10.  Certification.

          By signing below we certify that, to the best of our knowledge and
          belief, the securities referred to above were acquired and are held in
          the ordinary course of business and were not acquired and are not held
          for the purpose of or with the effect of changing or influencing the
          control of the issuer of the securities and were not acquired and are
          not held in connection with or as a participant in any transaction
          having that purpose or effect.

                                    SIGNATURE

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

                                       February 10, 2000
                                       -----------------


                                       /s/ G. Gregory Hagar
                                       ----------------------
                                       By: G. Gregory Hagar
                                       Title: Partner, Finance & Administration


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