Boston Beer (NYSE: SAM) founder Koch reports 21.6% ownership stake

Rhea-AI Filing Summary

C. James Koch, Chairman and Founder of The Boston Beer Company, Inc., reports beneficial ownership of 2,271,472 shares of Class A Common Stock, representing 21.62% of the class as of 12/31/2025.

This total includes 2,068,000 shares of Class B Common Stock, which are immediately convertible into Class A shares at his election. He has sole voting power over 2,235,692 shares and sole dispositive power over 2,084,283 shares, with no shared voting or dispositive power reported. Koch certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the company, other than activities related solely to a nomination under Rule 240.14a-11.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 30)

The Boston Beer Company, Inc.

(Name of Issuer)

Class A Common Stock

(Title of Class of Securities)

100557107

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 100557107

1

Names of Reporting Persons

C. James Koch

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,235,692.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,084,283.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,271,472.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

21.62 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: The aggregate amount of shares beneficially owned by the Reporting Person includes 2,068,000 shares of Class B Common Stock, which are immediately convertible to Class A Common Stock at the Reporting Person's election.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: The Boston Beer Company, Inc.
(b)	Address of issuer's principal executive offices: One Design Center Place Suite 850 Boston, MA 02210
Item 2.
(a)	Name of person filing: C. James Koch
(b)	Address or principal business office or, if none, residence: The Boston Beer Company, Inc. One Design Center Place Suite 850 Boston, MA 02210
(c)	Citizenship: USA
(d)	Title of class of securities: Class A Common Stock
(e)	CUSIP No.: 100557107
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2,271,472
(b)	Percent of class: 21.62%. Mr. Koch beneficially owns 21.28 percent of the Issuer's Common Stock. In addition, Mr. Koch could be deemed to be a beneficial owner, for purposes of this Schedule 13G, of an additional 35,780 shares of Class A Common Stock of the Issuer. Beneficial ownership of such shares would constitute beneficial ownership of an additional 0.34 percent of the Issuer's Class A Common Stock.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,235,692
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 2,084,283
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

C. James Koch

Signature:	/s/ C. James Koch
Name/Title:	Chairman & Founder
Date:	02/11/2026

FAQ

What stake in The Boston Beer Company (SAM) does C. James Koch report?

C. James Koch reports beneficial ownership of 2,271,472 shares of Class A Common Stock, representing 21.62% of that class. The filing also states he beneficially owns 21.28% of the issuer’s Common Stock, with potential additional beneficial ownership of 0.34% through extra shares.

How many Boston Beer shares does C. James Koch beneficially own and what do they include?

He beneficially owns 2,271,472 shares of Class A Common Stock. This aggregate amount includes 2,068,000 shares of Class B Common Stock that are immediately convertible into Class A Common Stock at his election, giving him flexibility over his economic and voting exposure.

What voting and dispositive powers over SAM shares does C. James Koch report?

He reports sole voting power over 2,235,692 shares and no shared voting power. He also reports sole dispositive power over 2,084,283 shares and no shared dispositive power, indicating individual authority to vote and dispose of these shares without shared control according to the filing.

What is the effective date of C. James Koch’s reported Boston Beer holdings?

The event date requiring this ownership report is 12/31/2025. As of that date, C. James Koch’s beneficial ownership and related percentages are calculated, providing investors with a snapshot of his position at year-end 2025 based on the Schedule 13G/A amendment.

How does the filing describe the purpose of C. James Koch’s holdings in SAM?

Koch certifies the securities were acquired and are held in the ordinary course of business. He further certifies they were not acquired and are not held to change or influence control of the issuer, except for activities solely connected with a nomination under Rule 240.14a-11.

What additional Boston Beer shares could C. James Koch be deemed to beneficially own?

The report notes he could be deemed a beneficial owner of an additional 35,780 Class A shares. Beneficial ownership of these shares would represent an additional 0.34% of the issuer’s Class A Common Stock, beyond the main 2,271,472 shares already reported in the aggregate amount.