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

SecuritySAM / The Boston Beer Company, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership78,992 shares
Latest Disclosed Value $ 18,199,757
Northern Trust Corp reports 5.48% increase in ownership of SAM / The Boston Beer Company, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 78,992 shares of The Boston Beer Company, Inc. (US:SAM) valued at $18,199,757 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 74,891 shares of The Boston Beer Company, Inc.. This represents a change in shares of 5.48% during the quarter. The current value of the position is $12,935,730 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F BOSTON BEER CL A 100557107 78,992 4,101 5.48 18,200 24.54 0.0005
2026-02-17 2025-12-31 13F BOSTON BEER CL A 100557107 74,891 -280 -0.37 14,613 -8.05 0.0004
2025-11-14 2025-09-30 13F BOSTON BEER CL A 100557107 75,171 -186 -0.25 15,893 10.53 0.0020
2025-08-13 2025-06-30 13F BOSTON BEER CL A 100557107 75,357 -11,434 -13.17 14,379 -30.64 0.0020
2025-05-13 2025-03-31 13F BOSTON BEER CL A 100557107 86,791 6,159 7.64 20,729 -14.30 0.0031
2025-02-14 2024-12-31 13F BOSTON BEER CL A 100557107 80,632 14,458 21.85 24,188 26.42 0.0034
2024-11-13 2024-09-30 13F BOSTON BEER COM 100557107 66,174 -7,784 -10.52 19,134 -15.19 0.0031
2024-08-14 2024-06-30 13F BOSTON BEER COM 100557107 73,958 6,809 10.14 22,561 10.37 0.0038
2024-05-14 2024-03-31 13F BOSTON BEER COM 100557107 67,149 -1,731 -2.51 20,441 -14.13 0.0035
2024-02-13 2023-12-31 13F BOSTON BEER COM 100557107 68,880 -1,444 -2.05 23,804 -13.10 0.0043
2023-11-13 2023-09-30 13F BOSTON BEER COM 100557107 70,324 1,315 1.91 27,393 28.70 0.0053
2023-08-11 2023-06-30 13F BOSTON BEER COM 100557107 69,009 -1,783 -2.52 21,285 -8.53 0.0041
2023-05-15 2023-03-31 13F BOSTON BEER COM 100557107 70,792 846 1.21 23,269 0.96 0.0046
2023-02-13 2022-12-31 13F BOSTON BEER COM 100557107 69,946 -173 -0.25 23,049 1.56 0.0048
2022-11-14 2022-09-30 13F BOSTON BEER COM 100557107 70,119 -147 -0.21 22,694 6.60 0.0052
2022-08-12 2022-06-30 13F BOSTON BEER COM 100557107 70,266 -1,943 -2.69 21,288 -24.11 0.0046
2022-05-13 2022-03-31 13F BOSTON BEER COM 100557107 72,209 -821 -1.12 28,050 -23.96 0.0049
2022-02-08 2021-12-31 13F BOSTON BEER COM 100557107 73,030 -17,418 -19.26 36,888 -19.99 0.0060
2021-11-15 2021-09-30 13F BOSTON BEER CL A 100557107 90,448 4,089 4.73 46,107 -47.70 0.0082
2021-08-13 2021-06-30 13F BOSTON BEER CL A 100557107 86,359 7,239 9.15 88,155 -7.63 0.0155
2021-05-12 2021-03-31 13F BOSTON BEER CL A 100557107 79,120 5,398 7.32 95,441 30.21 0.0178
2021-02-11 2020-12-31 13F BOSTON BEER CL A 100557107 73,722 -1,169 -1.56 73,300 10.80 0.0143
2020-11-16 2020-09-30 13F BOSTON BEER CL A 100557107 74,891 -5,234 -6.53 66,156 53.85 0.0145
2020-08-14 2020-06-30 13F BOSTON BEER COM 100557107 80,125 -63,257 -44.12 42,999 -18.41 0.0102
2020-05-14 2020-03-31 13F BOSTON BEER CL A 100557107 143,382 927 0.65 52,701 -2.09 0.0151
2020-02-14 2019-12-31 13F BOSTON BEER CL A 100557107 142,455 -2,230 -1.54 53,827 2.19 0.0120
2019-11-13 2019-09-30 13F BOSTON BEER COM 100557107 144,685 5,316 3.81 52,676 0.05 0.0126
2019-08-13 2019-06-30 13F BOSTON BEER CL A 100557107 139,369 766 0.55 52,648 28.88 0.0125
2019-05-13 2019-03-31 13F BOSTON BEER CL A 100557107 138,603 2,492 1.83 40,851 24.62 0.0101
2019-02-12 2018-12-31 13F BOSTON BEER CL A 100557107 136,111 -2,673 -1.93 32,781 -17.84 0.0092
2018-11-14 2018-09-30 13F BOSTON BEER CL A 100557107 138,784 2,405 1.76 39,901 -2.38 0.0098
2018-09-18 2018-06-30 13F/A-1 BOSTON BEER CL A 100557107 136,379 3,179 2.39 40,872 62.31 0.0104
2018-08-14 2018-06-30 13F BOSTON BEER CL A 100557107 137,178 3,978 41,112
2018-05-09 2018-03-31 13F BOSTON BEER CL A 100557107 133,200 -26 -0.02 25,181 -1.09 0.0066
2018-02-14 2017-12-31 13F BOSTON BEER CL A 100557107 133,226 -9,641 -6.75 25,459 14.08 0.0064
2017-11-13 2017-09-30 13F BOSTON BEER CL A 100557107 142,867 -7,109 -4.74 22,316 12.60 0.0058
2017-08-11 2017-06-30 13F BOSTON BEER COM 100557107 149,976 2,852 1.94 19,819 -6.87 0.0055
2017-05-12 2017-03-31 13F BOSTON BEER COM 100557107 147,124 2,083 1.44 21,282 -13.61 0.0061
2017-02-13 2016-12-31 13F BOSTON BEER COM 100557107 145,041 4,902 3.50 24,635 13.22 0.0076
2016-11-09 2016-09-30 13F BOSTON BEER COM 100557107 140,139 567 0.41 21,759 -8.85 0.0068
2016-08-12 2016-06-30 13F BOSTON BEER COM 100557107 139,572 -2,069 -1.46 23,871 -9.04 0.0077
2016-08-19 2016-03-31 13F/A-1 BOSTON BEER CL A 100557107 141,641 1,175 0.84 26,242 -7.47 0.0087
2016-05-13 2016-03-31 13F Boston Beer COMM 100557107 141,641 26,214
2016-02-12 2015-12-31 13F Boston Beer COMM 100557107 140,466 -516 -0.37 28,361 -4.48 0.0094
2015-11-12 2015-09-30 13F Boston Beer COMM 100557107 140,982 12,420 9.66 29,692 -0.45 0.0099
2015-08-13 2015-06-30 13F BOSTON BEER COM 100557107 128,562 -5,115 -3.83 29,825 -16.56 0.0202
2015-08-13 2015-06-30 13F Boston Beer COMM 010055710 1,086 -132,591 252 0.0002
2015-05-14 2015-03-31 13F Boston Beer COMM 100557107 133,677 35,109 35.62 35,745 25.25 0.0108
2015-02-12 2014-12-31 13F Boston Beer COM 100557107 98,568 -3,172 -3.12 28,539 26.49 0.0086
2014-11-13 2014-09-30 13F Boston Beer COMM 100557107 101,740 -6,106 -5.66 22,562 -6.41 0.0071
2014-08-14 2014-06-30 13F BOSTON BEER com 100557107 107,846 -7,608 -6.59 24,106 -14.69 0.0075
2014-05-14 2014-03-31 13F BOSTON BEER COMM 100557107 115,454 -10,520 -8.35 28,256 -7.23 0.0089
2014-02-21 2013-12-31 13F/A-1 BOSTON BEER COM 100557107 125,974 484 0.39 30,459 -0.61 0.0098
2014-02-12 2013-12-31 13F BOSTON BEER COM 100557107 125,974 30,459
2013-11-13 2013-09-30 13F BOSTON BEER COM 100557107 125,490 -1,307 -1.03 30,646 41.64 0.0108
2013-08-09 2013-06-30 13F BOSTON BEER COM 100557107 126,797 126,797 21,637 0.0078
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.