X0306 4 2017-07-28 false 0000949870 BOSTON BEER CO INC SAM 0001421530 Grinnell David L. C/O THE BOSTON BEER COMPANY, INC. ONE DESIGN CENTER PLACE, SUITE 850 BOSTON MA 02210 false true false false Vice President of Brewing Class A Common 2017-07-28 4 M false 2628.00 95.09 A 5526.00 D Class A Common 2017-07-28 4 S false 300.00 151.30 D 5226.00 D Class A Common 2017-07-28 4 S false 190.00 153.01 D 5036.00 D Class A Common 2017-07-28 4 S false 10.00 154.10 D 5026.00 D Class A Common 2017-07-28 4 S false 1728.00 161.50 D 3298.00 D Class A Common 2017-07-28 4 S false 400.00 162.85 D 2898.00 D Class A Common Stock Option 95.09 2017-07-28 4 M false 2628.00 0.00 D 2016-01-01 2020-12-31 Class A Common 2628.00 22372.00 D The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 12, 2017. The shares reported include 439 shares of restricted stock subject to vesting conditions. The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 190 shares is from $152.80 to $153.20. 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. The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 1,728 shares is from $161.10 to $161.93. 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. The price shown is the weighted average sale price for the transactions reported on this line. The range of sale prices for the 400 shares is from $162.70 to $163.00. 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. The option vests in five annual installments, on January 1 in the years 2016 to 2020, provided that the Reporting Person remains employed by the Company on the applicable vesting dates. Michael G. Andrews under POA for the benefit of David L. Grinnell 2017-08-01