Ticker · CUSIP 100557107

SAM

BOSTON BEER INC
Consumer Defensive·Beverages - Brewers
···Share
Holders (tracked)
15
Combined shares
1,023,661
Combined value
$198.28M
Last close
$244.52
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
15182024Q12025Q4
Price is +26.2% 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
    13F
  2. AQR Capital Management trimmed2026-02-17
    −206,836 shares · 2025Q4
    13F
  3. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +3,700 shares · 2025Q4
    13F
  4. Ken Griffin (Citadel Advisors) added2026-02-17
    +131,853 shares · 2025Q4
    13F
  5. T. Rowe Price added2026-02-17
    +480 shares · 2025Q4
    13F
  6. Two Sigma Investments added2026-02-17
    +3,675 shares · 2025Q4
    13F
  7. D.E. Shaw & Co. trimmed2026-02-17
    −18,570 shares · 2025Q4
    13F
  8. Ray Dalio (Bridgewater Associates) trimmed2026-02-13
    −5,662 shares · 2025Q4
    13F
  9. Lee Ainslie (Maverick Capital) trimmed2026-02-13
    −8,805 shares · 2025Q4
    13F
  10. Southeastern Asset (Longleaf) added2026-02-13
    +38,759 shares · 2025Q4
    13F
  11. Renaissance Technologies trimmed2026-02-12
    −4,400 shares · 2025Q4
    13F
  12. Ken Fisher (Fisher Asset Mgmt) exited2026-02-09
    −231,467 shares · 2025Q4
    13F
  13. Mario Gabelli (GAMCO) added2026-02-05
    +5,776 shares · 2025Q4
    13F
  14. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −5,335 shares · 2025Q3
    13F
  15. D.E. Shaw & Co. trimmed2025-11-14
    −21,421 shares · 2025Q3
    13F
  16. AQR Capital Management added2025-11-14
    +500,120 shares · 2025Q3
    13F
  17. Izzy Englander (Millennium Mgmt) trimmed2025-11-14
    −153,152 shares · 2025Q3
    13F
  18. Steve Cohen (Point72) exited2025-11-14
    −63,663 shares · 2025Q3
    13F
  19. Two Sigma Investments opened position2025-11-14
    +12,594 shares · 2025Q3
    13F
  20. Lee Ainslie (Maverick Capital) opened position2025-11-14
    +14,039 shares · 2025Q3
    13F
  21. T. Rowe Price added2025-11-14
    +374 shares · 2025Q3
    13F
  22. Southeastern Asset (Longleaf) added2025-11-14
    +2,921 shares · 2025Q3
    13F
  23. Renaissance Technologies trimmed2025-11-13
    −4,300 shares · 2025Q3
    13F
  24. Ray Dalio (Bridgewater Associates) opened position2025-11-13
    +10,825 shares · 2025Q3
    13F
  25. Norges Bank (Norway SWF) added2025-11-12
    +6,205 shares · 2024Q3
    13F
  26. Mario Gabelli (GAMCO) added2025-11-12
    +5,089 shares · 2025Q3
    13F
  27. Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12
    −615 shares · 2025Q3
    13F

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 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Renaissance Technologies2016Q1$148.51+64.6%$20.2M
Ken Griffin (Citadel Advisors)2016Q1$195.27+25.2%$5.4M
Ken Griffin (Citadel Advisors)2016Q1$195.27+25.2%$5.4M
Ken Griffin (Citadel Advisors)2016Q1$195.27+25.2%$5.4M
Two Sigma Investments2016Q1$214.49+14.0%$4.0M
Paul Tudor Jones (Tudor Investment)2016Q4$224.71+8.8%$538K
Paul Tudor Jones (Tudor Investment)2016Q4$224.71+8.8%$538K
AQR Capital Management2016Q1$225.13+8.6%$107.6M
Mario Gabelli (GAMCO)2016Q1$241.44+1.3%$6.9M
D.E. Shaw & Co.2016Q1$245.79-0.5%$13.2M
Izzy Englander (Millennium Mgmt)2016Q3$254.26-3.8%$13.9M
Ray Dalio (Bridgewater Associates)2020Q3$272.65-10.3%$1.3M
Southeastern Asset (Longleaf)2023Q1$289.26-15.5%$36.2M
Lee Ainslie (Maverick Capital)2018Q4$291.92-16.2%$1.3M
T. Rowe Price2016Q1$313.87-22.1%$1.8M

Who moved on this name in 2025Q4

13F transactions 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
$9.8M
2022Q4
20
$486.5M
2023Q1
21
$571.8M
2023Q2
21
$492.9M
2023Q3
20
$627.3M
2023Q4
21
$524.7M
2024Q1
18
$477.9M
2024Q2
21
$509.9M
2024Q3
18
$354.3M
2024Q4
16
$369.9M
2025Q1
17
$303.4M
2025Q2
15
$201.0M
2025Q3
14
$280.8M
2025Q4
15
$198.3M

Who owns SAM

15 super-investors · 2025Q4
Tracked stake
1.02M
shares
Combined value
$198M
% 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
11Lee Ainslie
Maverick Capital
5.2K$1M
12Ray Dalio
Bridgewater Associates
5.2K$1M
13Paul Tudor Jones
Tudor Investment
2.2K$429K
14Paul Tudor Jones
Tudor Investment
1.5K$293K
15T. Rowe Price7.5K$1K

Recent moves

20 transactions
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