BlackRock, Inc. reports beneficial ownership of 947,156 shares of Boston Beer Co. Class A common stock. The filing states this equals 11.3% of the class as of 06/30/2026, with 927,686 shares of sole voting power and 947,156 shares of sole dispositive power.
Positive
None.
Negative
None.
Insights
BlackRock discloses a sizeable passive stake in Boston Beer (11.3%).
Filing classifies the position as beneficially owned by BlackRock reporting business units, showing 947,156 shares and 11.3% of the class as of 06/30/2026. The disclosure follows Schedule 13G/A routines for passive investors.
Ownership includes 927,686 shares with sole voting power. Cash‑flow treatment and any sale plans are not described in the excerpt; subsequent filings would show changes in stake or voting intentions.
Voting and dispositive powers are mostly held solely by BlackRock reporting units.
The filing lists sole voting power at 927,686 shares and sole dispositive power at 947,156. Item 6 notes various persons may receive proceeds but no single third party holds >5% of the class.
Classification and subsidiary exhibits are referenced for Item 7; the signature date is 07/08/2026, which formalizes the amendment.
Key Figures
Beneficially owned:947,156 sharesPercent of class:11.3%Sole voting power:927,686 shares+4 more
7 metrics
Beneficially owned947,156 sharesAmount beneficially owned as of 06/30/2026
Percent of class11.3%Percent of Class A stock as reported in Item 4
Sole voting power927,686 sharesShares with sole power to vote listed in Item 4(c)(i)
Sole dispositive power947,156 sharesShares with sole power to dispose listed in Item 4(c)(iii)
CUSIP100557107CUSIP for Boston Beer Class A stock listed on cover
Filing amendment numberAmendment No. 17Cover identifies this submission as Amendment No. 17
Signature date07/08/2026Date the amendment was signed by Spencer Fleming
Key Terms
Schedule 13G/A, Beneficially owned, Sole dispositive power, Reporting Business Units
4 terms
Schedule 13G/Aregulatory
"Amendment No. 17 ) BOSTON BEER CO INC Class A Stock"
A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Sole dispositive powergovernance
"Item 4(c)(iii) Sole power to dispose or to direct the disposition of: 947156"
Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.
Reporting Business Unitsregulatory
"beneficially owned, or deemed to be beneficially owned, by certain business units"
What stake does BlackRock hold in Boston Beer (SAM)?
BlackRock beneficially owns 947,156 shares, equal to 11.3% of Class A stock. The Schedule 13G/A shows this position as of 06/30/2026, with sole dispositive power over all 947,156 shares and sole voting power over 927,686 shares.
Does BlackRock have voting control over its Boston Beer shares?
Yes: BlackRock reports sole voting power for 927,686 shares. The filing differentiates voting and dispositive powers and shows sole dispositive power for 947,156 shares; shared voting/dispositive power is reported as zero in this amendment.
Is BlackRock filing this as an active or passive investor?
The Schedule 13G/A format indicates passive investor reporting by BlackRock business units. The filing references SEC Release No. 34-39538 and lists Reporting Business Units; it does not state activist intentions or plans to change control in the excerpt.
When was the amendment signed and what dates are cited?
The amendment is signed on 07/08/2026 and reports ownership as of 06/30/2026. Exhibit references appear for Item 7 and the Power of Attorney; the filing is an amendment (No. 17) to prior Schedule 13G filings.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 17)
BOSTON BEER CO INC
(Name of Issuer)
Class A Stock
(Title of Class of Securities)
100557107
(CUSIP Number)
06/30/2026
(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)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
100557107
1
Names of Reporting Persons
BlackRock, Inc.
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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
927,686.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
947,156.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
947,156.00
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)
11.3 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
BOSTON BEER CO 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:
BlackRock, Inc.
In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)
Address or principal business office or, if none, residence:
BlackRock, Inc., 50 Hudson Yards New York, NY 10001
(c)
Citizenship:
See Item 4 of Cover Page
(d)
Title of class of securities:
Class A 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:
947156
(b)
Percent of class:
11.3 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
927686
(ii) Shared power to vote or to direct the vote:
0
(iii) Sole power to dispose or to direct the disposition of:
947156
(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 6.
Ownership of more than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of BOSTON BEER CO INC. No one person's interest in the common stock of BOSTON BEER CO INC is more than five percent of the total outstanding common shares.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
See Exhibit 99
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
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.
