# BOSTON BEER INC CL A

BOSTON BEER INC CL A is a security (CUSIP 100557107) tracked across SEC portfolio filings. 359 institutional managers reported $1.7B on Form 13F as of 2026-06-30; 32 registered fund positions totaling $171.8M via N-PORT as of 2026-05-31.

## Summary

- Issuer: BOSTON BEER INC
- Class: CL A
- CUSIP: 100557107
- Asset category: EC
- 13F holders: 359
- 13F value: $1.7B
- 13F period: 2026-06-30
- N-PORT fund positions: 32
- N-PORT value: $171.8M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 359 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $202.8M | 1,039,184 |
| BlackRock, Inc. | New York, NY | $177.5M | 770,250 |
| [AQR CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/111883) | Greenwich, CT | $150.2M | 651,984 |
| AMERICAN CENTURY COMPANIES INC | KANSAS CITY, MO | $66.4M | 288,084 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $63.0M | 273,612 |
| STATE STREET CORP | BOSTON, MA | $58.8M | 255,195 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $56.5M | 245,249 |
| [Quantinno Capital Management LP](https://search.stillhousedata.com/firm/298733) | NEW YORK, NY | $53.1M | 230,587 |
| UBS Group AG | Zurich, V8 | $50.4M | 218,604 |
| FMR LLC | BOSTON, MA | $45.0M | 195,365 |
| [Gotham Asset Management, LLC](https://search.stillhousedata.com/firm/149335) | NEW YORK, NY | $39.2M | 170,318 |
| [Global Alpha Capital Management Ltd.](https://search.stillhousedata.com/firm/161512) | MONTREAL, A8 | $34.0M | 147,525 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $33.4M | 144,960 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $32.8M | 142,113 |
| MORGAN STANLEY | NEW YORK, NY | $31.0M | 134,511 |

## Top fund holders (N-PORT)

_Showing 15 of 32 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| State Street SPDR S&P MidCap 400SM ETF Trust | SPDR S&P MIDCAP 400 ETF TRUST | $53.4M | 22.06% |
| [Longleaf Partners Small Cap Fund](https://search.stillhousedata.com/fund/S000009312) | Longleaf Partners Funds Trust | $27.2M | 391.84% |
| [VANGUARD STRATEGIC EQUITY FUND](https://search.stillhousedata.com/fund/S000002593) | VANGUARD HORIZON FUNDS | $26.4M | 26.12% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $19.8M | 2.42% |
| [Calamos Market Neutral Income Fund](https://search.stillhousedata.com/fund/S000004062) | CALAMOS INVESTMENT TRUST/IL | $15.5M | 8.78% |
| [T. Rowe Price Small-Cap Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002121) | T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | $10.6M | 11.52% |
| Gabelli Dividend & Income Trust | Gabelli Dividend & Income Trust | $9.0M | 33.89% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $5.5M | 7.32% |
| [HARTFORD SMALL CAP GROWTH HLS FUND](https://search.stillhousedata.com/fund/S000004108) | HARTFORD HLS SERIES FUND II INC | $4.4M | 57.53% |
| Gabelli Equity Trust Inc | Gabelli Equity Trust Inc | $4.1M | 23.40% |
| [Natixis U.S. Equity Opportunities Fund](https://search.stillhousedata.com/fund/S000006658) | Natixis Funds Trust I | $2.5M | 21.02% |
| [VANGUARD TAX-MANAGED BALANCED FUND](https://search.stillhousedata.com/fund/S000004383) | VANGUARD TAX-MANAGED FUNDS | $2.0M | 1.74% |
| [Large Cap Index Master Portfolio](https://search.stillhousedata.com/fund/S000033023) | Master Investment Portfolio | $1.3M | 0.34% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $1.0M | 0.46% |
| [Columbia Mid Cap Index Fund](https://search.stillhousedata.com/fund/S000010826) | COLUMBIA FUNDS SERIES TRUST | $974K | 3.83% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/100557107.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.