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

SecuritySAM / The Boston Beer Company, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership29,788 shares
Latest Disclosed Value $ 6,863,155
Trexquant Investment LP reports 46.92% decrease in ownership of SAM / The Boston Beer Company, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 29,788 shares of The Boston Beer Company, Inc. (US:SAM) valued at $6,863,155 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 56,119 shares of The Boston Beer Company, Inc.. This represents a change in shares of -46.92% during the quarter. The current value of the position is $4,906,679 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 29,788 -26,331 -46.92 6,863 -37.32 0.0493
2026-02-17 2025-12-31 13F BOSTON BEER CL A 100557107 56,119 15,952 39.71 10,950 28.94 0.0976
2025-11-14 2025-09-30 13F BOSTON BEER CL A 100557107 40,167 -28,916 -41.86 8,492 -35.57 0.0874
2025-08-12 2025-06-30 13F BOSTON BEER CL A 100557107 69,083 22,649 48.78 13,182 18.85 0.1487
2025-05-14 2025-03-31 13F BOSTON BEER CL A 100557107 46,434 27,698 147.83 11,090 97.33 0.1290
2025-02-12 2024-12-31 13F BOSTON BEER CL A 100557107 18,736 -18,280 -49.38 5,620 -47.49 0.0655
2024-11-12 2024-09-30 13F BOSTON BEER CL A 100557107 37,016 35,061 1,793.40 10,703 1,695.64 0.1355
2024-08-13 2024-06-30 13F BOSTON BEER CL A 100557107 1,955 -14,022 -87.76 596 -87.74 0.0091
2024-05-14 2024-03-31 13F BOSTON BEER CL A 100557107 15,977 2,806 21.30 4,864 6.86 0.0970
2024-02-09 2023-12-31 13F BOSTON BEER CL A 100557107 13,171 7,598 136.34 4,552 109.72 0.1024
2023-11-13 2023-09-30 13F BOSTON BEER CL A 100557107 5,573 -621 -10.03 2,171 13.61 0.0545
2023-08-11 2023-06-30 13F BOSTON BEER CL A 100557107 6,194 6,194 1,910 0.0501
2023-05-15 2023-03-31 13F BOSTON BEER CL A 100557107 0 -2,968 -100.00 0 -100.00
2023-02-13 2022-12-31 13F BOSTON BEER CL A 100557107 2,968 -4,134 -58.21 978 -57.46 0.0277
2022-11-14 2022-09-30 13F BOSTON BEER CL A 100557107 7,102 7,102 2,299 0.0808
2022-05-13 2022-03-31 13F BOSTON BEER CL A 100557107 0 -1,559 -100.00 0 -100.00
2022-02-14 2021-12-31 13F BOSTON BEER CL A 100557107 1,559 865 124.64 787 122.32 0.0486
2021-11-12 2021-09-30 13F BOSTON BEER CL A 100557107 694 694 354 0.0281
2021-05-13 2021-03-31 13F BOSTON BEER CL A 100557107 0 -420 -100.00 0 -100.00
2021-02-11 2020-12-31 13F BOSTON BEER CL A 100557107 420 -1,682 -80.02 418 -77.49 0.0443
2020-11-06 2020-09-30 13F BOSTON BEER CL A 100557107 2,102 2,102 1,857 0.1195
2020-08-07 2020-06-30 13F BOSTON BEER CL A 100557107 0 -1,682 -100.00 0 -100.00
2020-05-08 2020-03-31 13F BOSTON BEER CL A 100557107 1,682 1,682 618 0.0448
2020-02-12 2019-12-31 13F BOSTON BEER CL A 100557107 0 -15,225 -100.00 0 -100.00
2020-02-18 2019-09-30 13F/A-1 BOSTON BEER CL A 100557107 15,225 15,225 5,543 0.4787
2019-11-08 2019-09-30 13F BOSTON BEER CL A 100557107 15,225 15,225 5,543 478,734.6136
2019-08-09 2019-06-30 13F BOSTON BEER CL A 100557107 0 -3,026 -100.00 0 -100.00
2019-05-13 2019-03-31 13F BOSTON BEER CL A 100557107 3,026 1,766 140.16 892 194.39 0.0634
2019-02-13 2018-12-31 13F BOSTON BEER CL A 100557107 1,260 1,260 303 0.0189
2017-11-09 2017-09-30 13F BOSTON BEER CL A 100557107 0 -5,057 -100.00 0 -100.00
2017-08-01 2017-06-30 13F BOSTON BEER CL A 100557107 5,057 -4,913 -49.28 668 -53.68 0.1828
2017-05-08 2017-03-31 13F BOSTON BEER CL A 100557107 9,970 9,970 1,442 0.1850
2016-05-11 2016-03-31 13F BOSTON BEER CL A 100557107 0 -8,300 -100.00 0 -100.00
2016-02-10 2015-12-31 13F BOSTON BEER CL A 100557107 8,300 8,300 0.00 1,676 0.1476
2015-08-12 2015-06-30 13F BOSTON BEER CL A 100557107 0 -9,300 -100.00 0 -100.00
2015-05-13 2015-03-31 13F BOSTON BEER CL A 100557107 9,300 9,300 2,486 0.2538
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.