SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                  SCHEDULE 13G
                                 (Rule 13d-102)


             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED
                            PURSUANT TO RULE 13d-2(b)

                                (Amendment No. 3)


                               BOSTON BEER CO INC
- --------------------------------------------------------------------------------
                                (Name of Issuer)


                              COMMON STOCK CLASS A
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                    10055710
- --------------------------------------------------------------------------------
                                 (CUSIP Number)


                                DECEMBER 31, 2003
- --------------------------------------------------------------------------------
            (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)


- ----------
(1)  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 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).



CUSIP No. 10055710 13G Page 2 of 5 Pages - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) CREDIT SUISSE ASSET MANAGEMENT, LLC 13-3580284 - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] NOT APPLICABLE - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION UNITED STATES - -------------------------------------------------------------------------------- NUMBER OF 5. SOLE VOTING POWER SHARES 623,252 ----------------------------------------------------------------- BENEFICIALLY 6. SHARED VOTING POWER OWNED BY 0 ----------------------------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING 623,252 ----------------------------------------------------------------- PERSON 8. SHARED DISPOSITIVE POWER WITH 0 - -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 623,252 - -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [-] NOT APPLICABLE - -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 6.4% - -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* IA - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT!

CUSIP No. 10055710 13G Page 3 of 5 Pages Item 1(a). Name of Issuer: BOSTON BEER CO INC -------------------------------------------------------------------- Item 1(b). Address of Issuer's Principal Executive Offices: 75 ARLINGTON ST BOSTON, MA 02116 -------------------------------------------------------------------- Item 2(a). Name of Person Filing: CREDIT SUISSE ASSET MANAGEMENT, LLC -------------------------------------------------------------------- Item 2(b). Address of Principal Business Office, or if None, Residence: 466 LEXINGTON AVENUE NEW YORK, NY 10017 -------------------------------------------------------------------- Item 2(c). Citizenship: UNITED STATES -------------------------------------------------------------------- Item 2(d). Title of Class of Securities: COMMON STOCK CLASS A -------------------------------------------------------------------- Item 2(e). CUSIP Number: 10055710 -------------------------------------------------------------------- Item 3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a: (a) [_] Broker or dealer registered under Section 15 of the Exchange Act. (b) [_] Bank as defined in Section 3(a)(6) of the Exchange Act. (c) [_] Insurance company as defined in Section 3(a)(19) of the Exchange Act. (d) [_] Investment company registered under Section 8 of the Investment Company Act. (e) [X] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E); (f) [_] An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F); (g) [_] A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G); (h) [_] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act; (i) [_] A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act; (j) [_] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

CUSIP No. 10055710 13G Page 4 of 5 Pages 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: 623,252 ---------------------------------------------------------------------- (b) Percent of class: 6.4% ---------------------------------------------------------------------- (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote 623,252 (ii) Shared power to vote or to direct the vote 0 (iii) Sole power to dispose or to direct the disposition of 623,252 (iv) Shared power to dispose or to direct the disposition of 0 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 [ ]. NOT APPLICABLE ----------------------------------------------------------------------- Item 6. Ownership of More Than Five Percent on Behalf of Another Person. NOT APPLICABLE ----------------------------------------------------------------------- Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. 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. Certifications. (a) The following certification shall be included if the statement is filed pursuant to Rule 13d-1(b): "By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and 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 such purpose or effect."

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. JANUARY 8, 2004 ---------------------------------------- (Date) /s/ HAL LIEBES ---------------------------------------- (Signature) HAL LIEBES, MGNG DIRECTOR & GENL COUNSEL ---------------------------------------- (Name/Title) Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties for whom copies are to be sent. Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001).