Ticker · CUSIP 100557107

SAM

BOSTON BEER INC
Consumer Defensive·Beverages - Brewers
···Share
Holders (tracked)
15
Combined shares
1,023,661
Combined value
$199.75M
Last close
$245.33
Quarter
2025Q4
Price · 1Y$245.33+5.97 (+2.49%)H $260.05 · L $187.06 · Avg Vol 203K
$200.00$220.00$240.00$260.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
15182024Q12025Q4
Price is +25.7% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

27 events
  1. Izzy Englander (Millennium Mgmt) trimmed2026-02-17
    −15,061 shares · 2025Q4
    Position
  2. AQR Capital Management trimmed2026-02-17
    −206,836 shares · 2025Q4
    Position
  3. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +3,700 shares · 2025Q4
    Position
  4. Ken Griffin (Citadel Advisors) added2026-02-17
    +131,853 shares · 2025Q4
    Position
  5. T. Rowe Price added2026-02-17
    +480 shares · 2025Q4
    Position
  6. Two Sigma Investments added2026-02-17
    +3,675 shares · 2025Q4
    Position
  7. D.E. Shaw & Co. trimmed2026-02-17
    −18,570 shares · 2025Q4
    Position
  8. Ray Dalio (Bridgewater Associates) trimmed2026-02-13
    −5,662 shares · 2025Q4
    Position
  9. Lee Ainslie (Maverick Capital) trimmed2026-02-13
    −8,805 shares · 2025Q4
    Position
  10. Southeastern Asset (Longleaf) added2026-02-13
    +38,759 shares · 2025Q4
    Position
  11. Renaissance Technologies trimmed2026-02-12
    −4,400 shares · 2025Q4
    Position
  12. Ken Fisher (Fisher Asset Mgmt) exited2026-02-09
    −231,467 shares · 2025Q4
    Position
  13. Mario Gabelli (GAMCO) added2026-02-05
    +5,776 shares · 2025Q4
    Position
  14. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −5,335 shares · 2025Q3
    Position
  15. D.E. Shaw & Co. trimmed2025-11-14
    −21,421 shares · 2025Q3
    Position
  16. AQR Capital Management added2025-11-14
    +500,120 shares · 2025Q3
    Position
  17. Izzy Englander (Millennium Mgmt) trimmed2025-11-14
    −153,152 shares · 2025Q3
    Position
  18. Steve Cohen (Point72) exited2025-11-14
    −63,663 shares · 2025Q3
    Position
  19. Two Sigma Investments opened position2025-11-14
    +12,594 shares · 2025Q3
    Position
  20. Lee Ainslie (Maverick Capital) opened position2025-11-14
    +14,039 shares · 2025Q3
    Position
  21. T. Rowe Price added2025-11-14
    +374 shares · 2025Q3
    Position
  22. Southeastern Asset (Longleaf) added2025-11-14
    +2,921 shares · 2025Q3
    Position
  23. Renaissance Technologies trimmed2025-11-13
    −4,300 shares · 2025Q3
    Position
  24. Ray Dalio (Bridgewater Associates) opened position2025-11-13
    +10,825 shares · 2025Q3
    Position
  25. Norges Bank (Norway SWF) added2025-11-12
    +6,205 shares · 2024Q3
    Position
  26. Mario Gabelli (GAMCO) added2025-11-12
    +5,089 shares · 2025Q3
    Position
  27. Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12
    −615 shares · 2025Q3
    Position

Insider activity

No insider transactions in the last 30 days.
View full insider history for SAM →
Follow-the-investor returns
If you'd copied each holder of SAM…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Ken Griffin (Citadel Advisors)2016Q1$195.27+25.6%$5.4M
Ken Griffin (Citadel Advisors)2016Q1$195.27+25.6%$5.4M
Ken Griffin (Citadel Advisors)2016Q1$195.27+25.6%$5.4M
Two Sigma Investments2016Q1$214.49+14.4%$4.0M
Paul Tudor Jones (Tudor Investment)2016Q4$224.76+9.2%$540K
Paul Tudor Jones (Tudor Investment)2016Q4$224.76+9.2%$540K
AQR Capital Management2016Q1$226.92+8.1%$108.0M
Mario Gabelli (GAMCO)2016Q1$243.10+0.9%$6.9M
D.E. Shaw & Co.2016Q1$245.80-0.2%$13.2M
Izzy Englander (Millennium Mgmt)2016Q3$254.27-3.5%$14.0M
Ray Dalio (Bridgewater Associates)2020Q3$272.65-10.0%$1.3M
Renaissance Technologies2016Q1$285.88-14.2%$20.3M
Southeastern Asset (Longleaf)2023Q1$289.26-15.2%$36.3M
Lee Ainslie (Maverick Capital)2018Q4$291.92-16.0%$1.3M
T. Rowe Price2016Q1$366.14-33.0%$1.8M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions1
Added to5
Trimmed6
Exited1

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
17
$16.57B
2022Q2
18
$11.20B
2022Q3
17
$586.8M
2022Q4
20
$554.4M
2023Q1
21
$577.2M
2023Q2
21
$495.7M
2023Q3
20
$633.6M
2023Q4
21
$543.6M
2024Q1
18
$506.7M
2024Q2
21
$512.5M
2024Q3
18
$356.9M
2024Q4
16
$371.9M
2025Q1
17
$305.0M
2025Q2
15
$202.3M
2025Q3
14
$282.3M
2025Q4
15
$199.7M

Who owns SAM

15 super-investors · 2025Q4
Tracked stake
1.02M
shares
Combined value
$200M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added7Trim6
#ManagerSharesValue
1AQR Capital Management440.2K$86M
2Southeastern Asset
Longleaf
148.0K$29M
3Ken Griffin
Citadel Advisors
132.9K$26M
4Renaissance Technologies82.7K$16M
5Izzy Englander
Millennium Mgmt
56.9K$11M
6D.E. Shaw & Co.53.8K$10M
7Mario Gabelli
GAMCO
28.1K$5M
8Ken Griffin
Citadel Advisors
21.9K$4M
9Ken Griffin
Citadel Advisors
21.3K$4M
10Two Sigma Investments16.3K$3M
11T. Rowe Price7.5K$1M
12Lee Ainslie
Maverick Capital
5.2K$1M
13Ray Dalio
Bridgewater Associates
5.2K$1M
14Paul Tudor Jones
Tudor Investment
2.2K$429K
15Paul Tudor Jones
Tudor Investment
1.5K$293K

Recent moves

20 transactions
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