X0306 4 2018-01-01 false 0000949870 BOSTON BEER CO INC SAM 0001393650 Geist John C C/O THE BOSTON BEER COMPANY, INC. ONE DESIGN CENTER PLACE BOSTON MA 02210 false true false false Chief Sales Officer Class A Common 2018-01-01 4 A false 1308.00 0.00 A 1576.00 D The shares reported include 1,459 shares of restricted stock subject to vesting conditions. Restricted shares granted pursuant to the Issuer's Employee Equity Incentive Plan generally vest in five equal installments over a five year period, provided that the Reporting Person remains employed by the Issuer as of the applicable vesting date. A total of 117 shares vested on the Reporting Date. Michael G. Andrews under POA for the benefit of John C. Geist 2018-01-02