Sec Form 4 Filing - Murphy Matthew Donal @ BOSTON BEER CO INC - 2023-03-01

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Murphy Matthew Donal 2. Issuer Name and Ticker or Trading Symbol BOSTON BEER CO INC [ SAM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Accounting Officer (Last) (First) (Middle) THE BOSTON BEER COMPANY, INC., ONE DESIGN CENTER PLACE, SUITE 850 3. Date of Earliest Transaction (MM/DD/YY) 03/01/2023 (Street) BOSTON, MA02210 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common 03/01/2023 A( 1 ) 387 A $ 0 2,980 ( 2 ) D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares March 1, 2023 Stock Option $ 323.8 03/01/2023 A 771 03/01/2025( 3 ) 02/28/2033 Class A Common Stock 771 $ 0 771 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Murphy Matthew Donal THE BOSTON BEER COMPANY, INC. ONE DESIGN CENTER PLACE, SUITE 850 BOSTON, MA02210 Chief Accounting Officer Signatures Matthew D. Murphy 03/02/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents a grant of Restricted Stock Units ("RSUs") under the Issuer's Restated Employee Equity Incentive Plan. The RSUs will vest in four equal installments over a four year period, provided that theReporting Person remains employed by the Issuer as of the applicable vesting date, and subject to accelerated vesting in certain situations. ( 2 )The shares reported include 1,150 shares of restricted stock subject to vesting conditions. A total of 452 RSUs and 50 ISPs vested on March 1, 2023. ( 3 )The Performance-Based Stock Options were granted pursuant to the Issuer's EEIP on March 1, 2023. The extent to which the options become exercisable is dependent upon the Company achieving certain compounded annual growth rate targets based on net revenue growth in Fiscal Year 2024 over Fiscal Year 2022. The Compensation Committee will determine if the performance criteria have been achieved prior to March 1, 2025. If the performance criteria is achieved, the options vest in three equal installments on March 1 in the years 2025-2027, provided that the Reporting Person remains employed by the Company on the applicable vesting dates, and subject to accelerated vesting in certain situations.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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