Sec Form 4 Filing - KOCH C JAMES @ BOSTON BEER CO INC - 2020-04-29

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 KOCH C JAMES 2. Issuer Name and Ticker or Trading Symbol BOSTON BEER CO INC [ SAM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chairman (Last) (First) (Middle) C/O THE BOSTON BEER COMPANY, ONE DESIGN CENTER PLACE, SUITE 850 3. Date of Earliest Transaction (MM/DD/YY) 04/29/2020 (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 04/29/2020 S( 1 ) 460 D $ 457.63 ( 2 ) 122,891 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 365 D $ 458.67 ( 4 ) 122,526 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 544 D $ 459.76 ( 5 ) 121,982 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 600 D $ 461.18 ( 6 ) 121,382 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 300 D $ 462.46 ( 7 ) 121,082 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 100 D $ 463.445 120,982 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 1,200 D $ 465.15 ( 8 ) 119,782 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 1,115 D $ 466.37 ( 9 ) 118,667 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 1,221 D $ 467.3 ( 10 ) 117,446 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 1,294 D $ 468.34 ( 11 ) 116,152 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 800 D $ 469.47 ( 12 ) 115,352 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 701 D $ 470.53 ( 13 ) 114,651 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 800 D $ 471.99 ( 14 ) 113,851 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 378 D $ 473.16 ( 15 ) 113,473 ( 3 ) D Class A Common 04/29/2020 S( 1 ) 122 D $ 474.02 ( 16 ) 113,351 ( 3 ) 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other KOCH C JAMES C/O THE BOSTON BEER COMPANY ONE DESIGN CENTER PLACE, SUITE 850 BOSTON, MA02210 X X Chairman Signatures Michael G. Andrews under POA for the benefit of Koch C. James 04/30/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 4, 2020. ( 10 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 1,221 shares is from $466.84 to $467.81. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 11 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 1,294 shares is from $467.84 to $468.69. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 12 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 800 shares is from $469.01 to $469.98. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 13 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 701 shares is from $470.07 to $471.04. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 14 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 800 shares is from $471.47 to $472.44. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 15 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 378 shares is from $472.90 to $473.71. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 16 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 122 shares is from $473.99 to $474.15. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 2 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 460 shares is from $457.20 to $458.00. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 3 )The shares reported include 343 shares of restricted stock subject to vesting conditions. ( 4 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 365 shares is from $458.28 to $459.26. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 5 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 544 shares is from $459.37 to $459.94. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 6 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 600 shares is from $460.76 to $461.56. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 7 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 300 shares is from $462.02 to $462.85. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 8 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 1,200 shares is from $464.54 to $465.32. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant. ( 9 )The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 1,115 shares is from $465.74 to $466.72. The Filing Person will provide full information regarding the number of shares sold at each separate price upon request of the SEC, the Registrant, or a shareholder of the Registrant.

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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