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 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
30
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 5 listed it in both
Shares listed
2,077,092
combined, among listed positions
Reported value
$369m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 20 buyers (opened or added shares) and 12 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +151,550.

Managers listing SAM in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

30 of 30 holders

ActionFiling
AQR Capital Management LLC539,988$96munder 0.1%Trimmed-111,99614 Aug 2026 (the filing on sec.gov)
Arrowstreet Capital LP321,080$57munder 0.1%Added+75,83113 Aug 2026 (the filing on sec.gov)
Millennium Management LLC283,512$50munder 0.1%Added+186,89714 Aug 2026 (the filing on sec.gov)
Southeastern Asset Management Inc146,043$26m1.35%Added+27,64214 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC117,548$21munder 0.1%Newnew27 Oct 2026 (the filing on sec.gov)
Renaissance Technologies LLC102,179$18munder 0.1%Added+8,40013 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.99,454$18munder 0.1%Added+52,84714 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)60,625$11munder 0.1%Trimmed-134,74013 Aug 2026 (the filing on sec.gov)
Invesco Ltd58,648$10munder 0.1%Trimmed-56,96414 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC48,829$8.6munder 0.1%Trimmed-4,3852 Sep 2026 (the filing on sec.gov)
Marshall Wace LLP42,474$7.5munder 0.1%Trimmed-3,17113 Aug 2026 (the filing on sec.gov)
Winton Group Ltd33,018$5.8m0.19%Added+3597 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp30,517$5.4munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
GAMCO Investors Inc28,352$5.0munder 0.1%Added+29212 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP14,841$3.4munder 0.1%Added+6,62314 Aug 2026 (the filing on sec.gov)
Bridgewater Associates LP18,630$3.3munder 0.1%Added+16,77914 Aug 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP17,853$3.2munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP17,575$3.1munder 0.1%Trimmed-8,52814 Aug 2026 (the filing on sec.gov)
Acadian Asset Management LLC17,254$3.1munder 0.1%Trimmed-7,30413 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC14,469$2.6munder 0.1%Trimmed-3,50514 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC13,652$2.4munder 0.1%Added+9,81514 Aug 2026 (the filing on sec.gov)
Caxton Associates LLP12,900$2.3munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc11,156$2.0munder 0.1%Added+3,05514 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP8,947$1.6munder 0.1%Added+1,44714 Aug 2026 (the filing on sec.gov)
Freestone Grove Partners LP5,061$896kunder 0.1%Added+2,68814 Aug 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, 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 (5)

Exited (3)

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 →