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

SecuritySAM / The Boston Beer Company, Inc.
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership336 shares
Latest Disclosed Value $ 77,414
Northwestern Mutual Wealth Management Co reports 21.31% decrease in ownership of SAM / The Boston Beer Company, Inc.

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 336 shares of The Boston Beer Company, Inc. (US:SAM) valued at $77,414 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 427 shares of The Boston Beer Company, Inc.. This represents a change in shares of -21.31% during the quarter. The current value of the position is $55,346 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)
2026-05-07 2026-03-31 13F BOSTON BEER CL A 100557107 336 -91 -21.31 77 -7.23 0.0000
2026-02-10 2025-12-31 13F/A-1 BOSTON BEER CL A 100557107 427 28 7.02 83 -1.19 0.0001
2026-02-05 2025-12-31 13F BOSTON BEER CL A 100557107 1,839 1,440 177 0.0001
2025-11-14 2025-09-30 13F BOSTON BEER CL A 100557107 399 -15 -3.62 84 7.69 0.0001
2025-08-13 2025-06-30 13F BOSTON BEER CL A 100557107 414 10 2.48 79 -18.75 0.0001
2025-05-14 2025-03-31 13F BOSTON BEER CL A 100557107 404 -14 -3.35 96 -23.20 0.0001
2025-02-11 2024-12-31 13F BOSTON BEER CL A 100557107 418 14 3.47 125 7.76 0.0001
2024-11-12 2024-09-30 13F BOSTON BEER CL A 100557107 404 -63 -13.49 117 -18.31 0.0001
2024-08-16 2024-06-30 13F BOSTON BEER CL A 100557107 467 -48 -9.32 142 -8.97 0.0001
2024-05-15 2024-03-31 13F BOSTON BEER CL A 100557107 515 -47 -8.36 157 -19.59 0.0002
2024-02-13 2023-12-31 13F BOSTON BEER CL A 100557107 562 29 5.44 194 -6.28 0.0002
2023-11-14 2023-09-30 13F BOSTON BEER CL A 100557107 533 -112 -17.36 208 4.55 0.0003
2023-08-14 2023-06-30 13F BOSTON BEER CL A 100557107 645 154 31.36 199 22.98 0.0003
2023-05-15 2023-03-31 13F BOSTON BEER CL A 100557107 491 41 9.11 161 8.78 0.0002
2023-02-21 2022-12-31 13F BOSTON BEER CL A 100557107 450 38 9.22 148 11.28 0.0002
2022-11-14 2022-09-30 13F BOSTON BEER CL A 100557107 412 -479 -53.76 133 -50.74 0.0002
2022-08-04 2022-06-30 13F BOSTON BEER CL A 100557107 891 -68 -7.09 270 -27.61 0.0005
2022-05-09 2022-03-31 13F BOSTON BEER CL A 100557107 959 -485 -33.59 373 -48.83 0.0006
2022-02-03 2021-12-31 13F BOSTON BEER CL A 100557107 1,444 -311 -17.72 729 -18.55 0.0012
2021-11-15 2021-09-30 13F BOSTON BEER CL A 100557107 1,755 1,085 161.94 895 30.85 0.0016
2021-08-13 2021-06-30 13F BOSTON BEER CL A 100557107 670 -76 -10.19 684 -24.00 0.0013
2021-05-14 2021-03-31 13F BOSTON BEER CL A 100557107 746 -444 -37.31 900 -23.99 0.0019
2021-02-12 2020-12-31 13F BOSTON BEER CL A 100557107 1,190 -55 -4.42 1,184 7.64 0.0027
2020-11-13 2020-09-30 13F BOSTON BEER CL A 100557107 1,245 830 200.00 1,100 393.27 0.0030
2020-08-14 2020-06-30 13F BOSTON BEER CL A 100557107 415 -292 -41.30 223 -14.23 0.0007
2020-05-08 2020-03-31 13F BOSTON BEER CL A 100557107 707 30 4.43 260 1.56 0.0010
2020-02-13 2019-12-31 13F BOSTON BEER CL A 100557107 677 -35 -4.92 256 -1.16 0.0009
2019-11-12 2019-09-30 13F BOSTON BEER CL A 100557107 712 165 30.16 259 25.12 0.0010
2019-08-12 2019-06-30 13F BOSTON BEER CL A 100557107 547 0 0.00 207 28.57 0.0008
2019-05-10 2019-03-31 13F BOSTON BEER CL A 100557107 547 -91 -14.26 161 4.55 0.0007
2019-02-12 2018-12-31 13F BOSTON BEER CL A 100557107 638 -82 -11.39 154 -25.60 0.0008
2018-11-01 2018-09-30 13F BOSTON BEER CL A 100557107 720 -12 -1.64 207 -5.48 0.0010
2018-08-10 2018-06-30 13F BOSTON BEER CL A 100557107 732 -30 -3.94 219 52.08 0.0012
2018-05-14 2018-03-31 13F BOSTON BEER CL A 100557107 762 5 0.66 144 -0.69 0.0009
2018-01-31 2017-12-31 13F BOSTON BEER CL A 100557107 757 -85 -10.10 145 9.85 0.0009
2017-11-07 2017-09-30 13F BOSTON BEER CL A 100557107 842 0 0.00 132 18.92 0.0009
2017-08-10 2017-06-30 13F BOSTON BEER CL A 100557107 842 411 95.36 111 79.03 0.0009
2017-05-09 2017-03-31 13F BOSTON BEER CL A 100557107 431 -73 -14.48 62 -27.91 0.0006
2017-02-15 2016-12-31 13F BOSTON BEER CL A 100557107 504 -4 -0.79 86 10.26 0.0009
2016-11-14 2016-09-30 13F BOSTON BEER CL A 100557107 508 15 3.04 78 -7.14 0.0012
2016-08-29 2016-06-30 13F BOSTON BEER CL A 100557107 493 -120 -19.58 84 -26.32 0.0012
2016-05-16 2016-03-31 13F BOSTON BEER CL A 100557107 613 16 2.68 114 -5.79 0.0018
2016-02-16 2015-12-31 13F BOSTON BEER CL A 100557107 597 212 55.06 121 49.38 0.0024
2015-11-16 2015-09-30 13F BOSTON BEER CL A 100557107 385 63 19.57 81 8.00 0.0019
2015-09-30 2015-06-30 13F/A-1 BOSTON BEER CL A 100557107 322 22 7.33 75 -6.25 0.0019
2015-08-14 2015-06-30 13F BOSTON BEER CL A 100557107 300 80
2015-05-15 2015-03-31 13F BOSTON BEER CL A 100557107 300 -8 -2.60 80 -10.11 0.0022
2015-02-13 2014-12-31 13F BOSTON BEER CL A 100557107 308 -120 -28.04 89 -6.32 0.0027
2014-11-14 2014-09-30 13F BOSTON BEER CL A 100557107 428 89 26.25 95 25.00 0.0033
2014-08-05 2014-06-30 13F BOSTON BEER CL A 100557107 339 39 13.00 76 4.11 0.0030
2014-05-15 2014-03-31 13F BOSTON BEER CL A 100557107 300 0 0.00 73 0.00 0.0031
2014-02-14 2013-12-31 13F BOSTON BEER CL A 100557107 300 300 809.09 73 1,116.67 0.0033
2013-11-14 2013-09-30 13F BOSTON BEER CL A 100557107 0 -33 -100.00 0 -100.00
2013-08-21 2013-06-30 13F/A-1 BOSTON BEER CL A 100557107 33 33 6 0.0004
2013-08-14 2013-06-30 13F BOSTON BEER CL A 100557107 1,163 198 0.0022
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.