Tara L. Heath - 01 Mar 2026 Form 4 Insider Report for BOSTON BEER CO INC (SAM)

Role: Chief Legal Officer
Signature: Michael G. Andrews under POA for Tara L. Heath
Issuer symbol: SAM
Transactions as of: 01 Mar 2026
Net transactions value: -$67,354
Form type: 4
Filing time: 03 Mar 2026, 10:09:39 UTC
Previous filing: 04 Mar 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
HEATH TARA L.	Chief Legal Officer	C/O THE BOSTON BEER COMPANY, INC., 1 DESIGN CENTER PLACE, STE. 850, BOSTON	Michael G. Andrews under POA for Tara L. Heath	02 Mar 2026	0001680130

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SAM	Class A Common	Tax liability	$67,354	-297	-2.5%	$226.78	11,793	01 Mar 2026	Direct	F1
transaction	SAM	Class A Common	Award	$0	+2,206	+19%	$0.000000	13,999	01 Mar 2026	Direct	F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SAM	March 1, 2023 Stock Option	Award	$0	+360	+100%	$0.000000	720	01 Mar 2026	Class A Common	1,080	$323.80	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Issuer "net withheld" the vesting of a percentage of shares to satisfy the tax obligations of the Reporting Person flowing from the vesting of Restricted Stock Units ("RSUs"). The Reporting Person had a total of 1,006 RSUs vest on March 1, 2026.
F2	Represents grants of Restricted Stock Units ("RSUs") under the Issuer's Restated Employee Equity Incentive Plan ("EEIP"). The details of these grants were disclosed in a Current Report on Form 8-K filed by the Issuer on February 17, 2026.
F3	The shares reported include 11,012 shares of restricted stock subject to vesting conditions.
F4	The Performance-Based Stock Options were granted pursuant to the Issuer's EEIP on March 1, 2023. In February 2025, the Compensation Committee determined that the performance criteria had been 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.