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

SecuritySAM / The Boston Beer Company, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership255,195 shares
Latest Disclosed Value $ 58,796,928
State Street Corp reports 0.35% increase in ownership of SAM / The Boston Beer Company, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 255,195 shares of The Boston Beer Company, Inc. (US:SAM) valued at $58,796,928 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 254,297 shares of The Boston Beer Company, Inc.. This represents a change in shares of 0.35% during the quarter. The current value of the position is $41,790,733 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 255,195 898 0.35 58,797 18.49 0.0020
2026-02-13 2025-12-31 13F BOSTON BEER CL A 100557107 254,297 -8,966 -3.41 49,621 -10.85 0.0017
2025-11-14 2025-09-30 13F BOSTON BEER CL A 100557107 263,263 -15,410 -5.53 55,659 4.68 0.0019
2025-08-14 2025-06-30 13F BOSTON BEER CL A 100557107 278,673 -14,623 -4.99 53,174 -24.09 0.0020
2025-05-15 2025-03-31 13F BOSTON BEER CL A 100557107 293,296 -5,341 -1.79 70,051 -21.81 0.0029
2025-02-14 2024-12-31 13F BOSTON BEER CL A 100557107 298,637 5,994 2.05 89,585 5.87 0.0035
2024-11-14 2024-09-30 13F BOSTON BEER CL A 100557107 292,643 21,276 7.84 84,615 2.22 0.0034
2024-08-14 2024-06-30 13F BOSTON BEER CL A 100557107 271,367 -4,893 -1.77 82,781 -1.57 0.0036
2024-05-15 2024-03-31 13F BOSTON BEER CL A 100557107 276,260 5,954 2.20 84,099 -9.97 0.0038
2024-02-14 2023-12-31 13F BOSTON BEER CL A 100557107 270,306 7,770 2.96 93,415 -8.65 0.0045
2023-11-14 2023-09-30 13F BOSTON BEER CL A 100557107 262,536 872 0.33 102,266 26.71 0.0057
2023-08-14 2023-06-30 13F BOSTON BEER CL A 100557107 261,664 1,612 0.62 80,708 -5.58 0.0042
2023-05-15 2023-03-31 13F BOSTON BEER CL A 100557107 260,052 6,185 2.44 85,479 2.18 0.0048
2023-05-15 2022-12-31 13F/A-99 BOSTON BEER CL A 100557107 253,867 2,798 1.11 83,654 2.95 0.0049
2023-05-15 2022-12-31 13F BOSTON BEER CL A 100557107 253,867 2,798 83,654 0.0049
2022-11-15 2022-09-30 13F BOSTON BEER CL A 100557107 251,069 4,220 1.71 81,258 8.65 0.0051
2022-08-15 2022-06-30 13F BOSTON BEER CL A 100557107 246,849 -5,003 -1.99 74,788 -23.56 0.0045
2022-05-16 2022-03-31 13F BOSTON BEER CL A 100557107 251,852 10,704 4.44 97,837 -19.68 0.0048
2022-02-14 2021-12-31 13F BOSTON BEER CL A 100557107 241,148 -55,771 -18.78 121,804 -19.52 0.0058
2021-11-15 2021-09-30 13F BOSTON BEER CL A 100557107 296,919 -5,295 -1.75 151,354 -50.94 0.0080
2021-08-16 2021-06-30 13F BOSTON BEER CL A 100557107 302,214 90,109 42.48 308,500 20.57 0.0163
2021-07-09 2021-03-31 13F/A-1 BOSTON BEER CL A 100557107 212,105 -1,345 -0.63 255,858 20.56 0.0147
2021-05-17 2021-03-31 13F BOSTON BEER CL A 100557107 212,105 -1,345 255,858 0.0147
2021-02-16 2020-12-31 13F BOSTON BEER CL A 100557107 213,450 4,706 2.25 212,231 15.10 0.0130
2020-11-10 2020-09-30 13F BOSTON BEER CL A 100557107 208,744 -17,305 -7.66 184,396 52.01 0.0126
2020-08-14 2020-06-30 13F BOSTON BEER CL A 100557107 226,049 -54,390 -19.39 121,309 17.69 0.0088
2020-06-19 2020-03-31 13F/A-1 BOSTON BEER CL A 100557107 280,439 5,697 2.07 103,078 -0.71 0.0090
2020-05-11 2020-03-31 13F BOSTON BEER CL A 100557107 280,439 5,697 103,078 9,052.3239
2020-02-06 2019-12-31 13F BOSTON BEER CL A 100557107 274,742 3,781 1.40 103,811 5.23 0.0071
2019-11-14 2019-09-30 13F BOSTON BEER CL A 100557107 270,961 -9,674 -3.45 98,651 -6.94 0.0074
2019-08-14 2019-06-30 13F BOSTON BEER CL A 100557107 280,635 6,823 2.49 106,013 31.37 0.0079
2019-05-15 2019-03-31 13F BOSTON BEER CL A 100557107 273,812 8,276 3.12 80,701 26.19 0.0063
2019-02-12 2018-12-31 13F BOSTON BEER CL A 100557107 265,536 -23,001 -7.97 63,952 -22.92 0.0058
2018-11-09 2018-09-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 288,537 1,835 0.64 82,965 -3.45 0.0064
2018-08-14 2018-06-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 286,702 9,050 3.26 85,926 63.69 0.0072
2018-05-15 2018-03-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 277,652 -44,677 -13.86 52,494 -14.78 0.0045
2018-02-14 2017-12-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 322,329 28,959 9.87 61,597 34.41 0.0050
2017-11-14 2017-09-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 293,370 847 0.29 45,827 18.55 0.0040
2017-08-14 2017-06-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 292,523 10,312 3.65 38,656 -5.30 0.0034
2017-05-15 2017-03-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 282,211 10,908 4.02 40,821 -11.42 0.0036
2017-02-09 2016-12-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 271,303 -4,919 -1.78 46,085 7.45 0.0043
2017-01-13 2016-09-30 13F/A-1 BOSTON BEER INC -CL A Common equity shares 100557107 276,222 -4,335 -1.55 42,890 -10.61 0.0043
2016-11-14 2016-09-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 276,222 42,890
2016-08-12 2016-06-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 280,557 -692 -0.25 47,981 -7.83 0.0052
2016-05-20 2016-03-31 13F/A-1 BOSTON BEER INC -CL A Common equity shares 100557107 281,249 -57 -0.02 52,056 -8.35 0.0056
2016-05-12 2016-03-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 281,249 52,056
2016-02-16 2015-12-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 281,306 3,821 1.38 56,799 -2.81 0.0062
2015-11-16 2015-09-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 277,485 7,723 2.86 58,440 -6.61 0.0068
2015-08-13 2015-06-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 269,762 -7,906 -2.85 62,579 -15.72 0.0067
2015-05-15 2015-03-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 277,668 116,685 72.48 74,247 59.27 0.0076
2015-02-11 2014-12-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 160,983 1,568 0.98 46,618 31.86 0.0046
2014-11-12 2014-09-30 13F/A-1 BOSTON BEER INC -CL A Common equity shares 100557107 159,415 -3,029 -1.86 35,353 -2.64 0.0038
2014-11-10 2014-09-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 159,415 35,353
2014-08-12 2014-06-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 162,444 -2,391 -1.45 36,312 -9.98 0.0039
2014-05-15 2014-03-31 13F/A-1 BOSTON BEER INC -CL A Common equity shares 100557107 164,835 4,560 2.85 40,339 4.10 0.0046
2014-05-13 2014-03-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 164,935 40,363
2014-02-06 2013-12-31 13F/A-1 BOSTON BEER INC -CL A Common equity shares 100557107 160,275 -694 -0.43 38,750 -1.43 0.0043
2014-02-06 2013-12-31 13F BOSTON BEER INC -CL A Common equity shares 100557107 156,616 21,056
2013-11-12 2013-09-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 160,969 2,925 1.85 39,311 45.79 0.0048
2013-08-08 2013-06-30 13F BOSTON BEER INC -CL A Common equity shares 100557107 158,044 158,044 26,965 0.0035
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.