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

SecuritySAM / The Boston Beer Company, Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership111,324 shares
Latest Disclosed Value $ 25,649,050
Qube Research & Technologies Ltd reports 16.21% decrease in ownership of SAM / The Boston Beer Company, Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 111,324 shares of The Boston Beer Company, Inc. (US:SAM) valued at $25,649,050 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 132,862 shares of The Boston Beer Company, Inc.. This represents a change in shares of -16.21% during the quarter. The current value of the position is $18,230,418 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 111,324 -21,538 -16.21 25,649 -1.06 0.0285
2026-02-17 2025-12-31 13F BOSTON BEER CL A 100557107 132,862 77,159 138.52 25,925 120.15 0.0263
2025-11-14 2025-09-30 13F BOSTON BEER CL A 100557107 55,703 -56,804 -50.49 11,777 -45.14 0.0122
2025-08-14 2025-06-30 13F BOSTON BEER CL A 100557107 112,507 82,742 277.98 21,467 201.97 0.0218
2025-05-15 2025-03-31 13F BOSTON BEER CL A 100557107 29,765 22,273 297.29 7,109 216.38 0.0082
2025-02-14 2024-12-31 13F BOSTON BEER CL A 100557107 7,492 5,106 214.00 2,247 226.12 0.0029
2024-11-14 2024-09-30 13F BOSTON BEER CL A 100557107 2,386 2,386 690 0.0010
2024-08-14 2024-06-30 13F BOSTON BEER CL A 100557107 0 -37,785 -100.00 0 -100.00
2024-05-14 2024-03-31 13F BOSTON BEER CL A 100557107 37,785 9,204 32.20 11,503 16.45 0.0182
2024-02-13 2023-12-31 13F BOSTON BEER CL A 100557107 28,581 28,540 69,609.76 9,877 65,746.67 0.0192
2023-11-13 2023-09-30 13F BOSTON BEER CL A 100557107 41 -4,952 -99.18 16 -99.03 0.0000
2023-08-14 2023-06-30 13F BOSTON BEER CL A 100557107 4,993 4,993 1,540 0.0056
2023-05-15 2023-03-31 13F BOSTON BEER CL A 100557107 0 -17,521 -100.00 0 -100.00
2023-02-14 2022-12-31 13F BOSTON BEER CL A 100557107 17,521 17,521 5,774 0.0309
2021-08-13 2021-06-30 13F BOSTON BEER CL A 100557107 0 -995 -100.00 0 -100.00
2021-05-14 2021-03-31 13F BOSTON BEER CL A 100557107 995 -1,742 -63.65 1,200 -55.90 0.0190
2021-02-16 2020-12-31 13F BOSTON BEER CL A 100557107 2,737 -4,091 -59.92 2,721 -54.89 0.0387
2020-11-12 2020-09-30 13F BOSTON BEER CL A 100557107 6,828 -3,171 -31.71 6,032 12.41 0.0861
2020-08-14 2020-06-30 13F BOSTON BEER CL A 100557107 9,999 9,999 5,366 0.0787
2019-02-14 2018-12-31 13F BOSTON BEER CL A 100557107 0 -400 -100.00 0 -100.00
2018-11-14 2018-09-30 13F BOSTON BEER CL A 100557107 400 342 589.66 115 576.47 0.0153
2018-08-15 2018-06-30 13F/A-1 BOSTON BEER CL A 100557107 58 58 17 0.0107
2018-08-14 2018-06-30 13F BOSTON BEER CL A 100557107 58 17 0.0107
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.