The Boston Beer Company, Inc.
US ˙ NYSE ˙ US1005571070

SecuritySAM / The Boston Beer Company, Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership7,715 shares
Latest Disclosed Value $ 1,777,536
Mercer Global Advisors Inc /adv reports 149.51% increase in ownership of SAM / The Boston Beer Company, Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 7,715 shares of The Boston Beer Company, Inc. (US:SAM) valued at $1,777,536 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,092 shares of The Boston Beer Company, Inc.. This represents a change in shares of 149.51% during the quarter. The current value of the position is $1,270,815 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F BOSTON BEER CL A 100557107 7,715 4,623 149.51 1,778 194.69 0.0026
2026-02-17 2025-12-31 13F BOSTON BEER CL A 100557107 3,092 -3,292 -51.57 603 -55.30 0.0009
2025-11-14 2025-09-30 13F BOSTON BEER CL A 100557107 6,384 5,150 417.34 1,350 474.04 0.0023
2025-08-14 2025-06-30 13F BOSTON BEER CL A 100557107 1,234 1,234 235 0.0005
2025-05-15 2025-03-31 13F BOSTON BEER CL A 100557107 0 -1,286 -100.00 0 -100.00
2025-02-14 2024-12-31 13F BOSTON BEER CL A 100557107 1,286 1,286 386 0.0009
2024-11-14 2024-09-30 13F BOSTON BEER CL A 100557107 0 -3,473 -100.00 0 -100.00
2024-08-12 2024-06-30 13F BOSTON BEER CL A 100557107 3,473 3,473 532 0.0015
2022-05-10 2022-03-31 13F BOSTON BEER CL A 100557107 0 -561 -100.00 0 -100.00
2022-02-04 2021-12-31 13F BOSTON BEER CL A 100557107 561 111 24.67 283 23.58 0.0017
2021-11-10 2021-09-30 13F BOSTON BEER CL A 100557107 450 -686 -60.39 229 -80.26 0.0016
2021-08-10 2021-06-30 13F BOSTON BEER CL A 100557107 1,136 168 17.36 1,160 -0.68 0.0089
2021-08-10 2021-03-31 13F/A-1 BOSTON BEER CL A 100557107 968 142 17.19 1,168 42.27 0.0106
2021-05-11 2021-03-31 13F BOSTON BEER CL A 100557107 968 142 1,168 0.0112
2021-02-12 2020-12-31 13F BOSTON BEER CL A 100557107 826 -130 -13.60 821 -2.73 0.0103
2020-12-10 2020-09-30 13F BOSTON BEER CL A 100557107 956 956 844 0.0127
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.