L3VLUP
ProSign in

SAM in the 13F filings

Boston Beer Inc · CUSIP 100557107

Sector · Consumer staples
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
30 Jun 2025
the date the book describes
Filed
14 Aug 2025
latest of these filings; the earliest 7 Aug 2025
Managers listing it
5
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q1 2025 and Q2 2025; 4 listed it in both
Shares listed
451,072
combined, among listed positions
Reported value
$86m
combined, at the quarter end

Among the 95 comparable managers: 3 buyers (opened or added shares) and 1 seller (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing SAM in Q2 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

5 of 5 holders

ActionFiling
Arrowstreet Capital LP239,109$46munder 0.1%Added+60,88013 Aug 2025 (the filing on sec.gov)
Southeastern Asset Management Inc106,317$20m1.02%Held014 Aug 2025 (the filing on sec.gov)
Acadian Asset Management LLC67,116$13munder 0.1%Newnew7 Aug 2025 (the filing on sec.gov)
Holocene Advisors LP21,325$4.1munder 0.1%Trimmed-11,86414 Aug 2025 (the filing on sec.gov)
GAMCO Investors Inc17,205$3.3munder 0.1%Added+88613 Aug 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2025 to Q2 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (1)

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
6 in Q3 2024 to 4 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
SAM by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20133$195mn.a.n.a.
Q3 20133$228mn.a.n.a.
Q4 20133$215mn.a.n.a.
Q1 20144$233mn.a.n.a.
Q2 20143$201mn.a.n.a.
Q3 20143$181mn.a.n.a.
Q4 20146$559mn.a.n.a.
Q1 20155$253mn.a.n.a.
Q2 20158$274mn.a.n.a.
Q3 20156$277mn.a.n.a.
Q4 20156$245mn.a.n.a.
Q1 20164$225mn.a.n.a.
Q2 20164$231mn.a.n.a.
Q3 20163$178mn.a.n.a.
Q4 20164$117mn.a.n.a.
Q1 20173$5.9mn.a.n.a.
Q2 20171$3.4mn.a.n.a.
Q3 20176$51mn.a.n.a.
Q4 20178$307mn.a.n.a.
Q1 20186$293mn.a.n.a.
Q2 201810$538mn.a.n.a.
Q3 20187$566mn.a.n.a.
Q4 201810$474mn.a.n.a.
Q1 201911$658mn.a.n.a.
Q2 201914$933mn.a.n.a.
Q3 201916$1.0bnn.a.n.a.
Q4 201913$968mn.a.n.a.
Q1 202013$1.0bnn.a.n.a.
Q2 202014$1.7bnn.a.n.a.
Q3 202023$3.1bnn.a.n.a.
Q4 202022$3.4bnn.a.n.a.
Q1 202115$4.3bnn.a.n.a.
Q2 202114$2.6bnn.a.n.a.
Q3 202112$1.3bnn.a.n.a.
Q4 202112$977mn.a.n.a.
Q1 20226$658mn.a.n.a.
Q2 20226$846mn.a.n.a.
Q3 20224$478mn.a.n.a.
Q4 20226$532mn.a.n.a.
Q1 20237$624mn.a.n.a.
Q2 20239$565mn.a.n.a.
Q3 202311$808mn.a.n.a.
Q4 20237$118m24
Q1 20246$118m41
Q2 20247$128m42
Q3 20246$143m51
Q4 20246$191m31
Q1 20257$140m52
Q2 20255$86m31
Q3 20258$252m80
Q4 20255$94m1913
Q1 20265$248m1318
Q2 20264$39m2012

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

SAM and PM →SAM and KO →SAM and COST →Choose a stock to compare with SAM →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own SAM, latest filings →Back to the 13F Explorer →