Boston Beer Co Inc
SAM- Exchange
- NYSE
- Industry
- Malt Beverages
- SEC CIK
- 0000949870
No open-market purchases or sales by Boston Beer Co Inc insiders were filed in the last 90 days; 330 institutions reported holding it in 13F filings for Q2 2026, worth $1.53B in total; Southeastern Asset Management (Longleaf) is the only superinvestor holding it.
Superinvestors holding SAM, Q2 2026
1 superinvestor reports holding Boston Beer Co Inc on Form 13F, worth $25.9M in total. Weight is Boston Beer Co Inc's share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Southeastern Asset Management (Longleaf)Mason Hawkins | 1.3% | 146,043 | $25.9M | Added+23.3% |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of SAM each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
1 superinvestor holding at quarter end
- Added
- Southeastern Asset Management (Longleaf) (+23.3%)
Q1 2026
1 superinvestor holding at quarter end
- Reduced
- Southeastern Asset Management (Longleaf) (−20.0%)
- Sold out
- Maverick Capital
Q4 2025
2 superinvestors holding at quarter end
- Added
- Southeastern Asset Management (Longleaf) (+35.5%)
- Reduced
- Maverick Capital (−62.7%)
Q3 2025
2 superinvestors holding at quarter end
- New
- Maverick Capital
- Added
- Southeastern Asset Management (Longleaf) (+2.7%)
Q3 2023
1 superinvestor holding at quarter end
- Reduced
- Southeastern Asset Management (Longleaf) (−16.5%)
- Sold out
- Maverick Capital
Q2 2023
2 superinvestors holding at quarter end
- Added
- Southeastern Asset Management (Longleaf) (+17.2%), Maverick Capital (+7.7%)
Q1 2023
2 superinvestors holding at quarter end
- New
- Southeastern Asset Management (Longleaf)
- Added
- Maverick Capital (+615.0%)
Q4 2022
1 superinvestor holding at quarter end
Q3 2021
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q2 2021
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+115.0%)