Security key
100557107
BOSTON BEER CO INC - Class A Common Stock. $0.01 par value (SAM)
CUSIP: 100557107
Q1 2021 13F Holders as of 31 Mar 2021
- Security type / class
- Equity / Class A Common Stock. $0.01 par value
- Total 13F shares
- 8,790,285
- Total 13F value
- $10,602,896,052
- Share change
- +197,078
- Put/Call ratio
- 200%
- SEC-reported price per share
- $1206.28
- Number of holders
- 411
- Value change
- +$268,908,755
- Number of buys
- 189
- Number of sells
- 189
- Shares outstanding
- 8,380,257
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2021
Institutions
411
Top holders
10
SAM full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2021
Previous quarter: Q4 2020
BOSTON BEER CO INC SEC filings
BOSTON BEER CO INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 100557107
Recent filing periods:
Ownership snapshot
Top reported holders of SAM - BOSTON BEER CO INC - Class A Common Stock. $0.01 par value (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
PRICE T ROWE ASSOCIATES I...
Disclosed value leader
PRICE T ROWE ASSOCIATES I...
Comparable rows
15/15
Latest evidence
31 Dec 2020
13F
Lead comparable stake: 15%
Showing 1-6 of 15 holder rows.
Quick read
PRICE T ROWE ASSOCIATES INC /MD/ leads the comparable SEC ownership view at 15%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens PRICE T ROWE ASSOCIATES INC /MD/'s linked filing trail.
Comparable ownership
Top 5
PRICE T ROWE ASSOCIATES INC /MD/
15%
BlackRock Finance, Inc.
11%
VANGUARD GROUP INC
10%
Durable Capital Partners LP
6.9%
RENAISSANCE TECHNOLOGIES LLC
4.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
Company
|
15%
|
$1,215,359,000
1,222,339 shares
|
— | 31 Dec 2020 |
| BlackRock Finance, Inc. |
13F
Company
|
11%
|
$909,259,000
914,480 shares
|
— | 31 Dec 2020 |
| VANGUARD GROUP INC |
13F
Company
|
10%
|
$838,939,000
843,756 shares
|
— | 31 Dec 2020 |
| Durable Capital Partners LP |
13F
Company
|
6.9%
|
$576,874,000
580,187 shares
|
— | 31 Dec 2020 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
4.5%
|
$371,367,000
373,500 shares
|
— | 31 Dec 2020 |
| FMR LLC |
13F
Company
|
4.4%
|
$366,744,000
368,850 shares
|
— | 31 Dec 2020 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
411
Shares
8,790,285
Rows available
411
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2021 vs Q4 2020 Across Filers
Q4 2020 holders
399
Q1 2021 holders
411
Holder diff
12
| Investor | Q4 2020 Shares | Q1 2021 Shares | Share Diff | Share Chg % | Q4 2020 value | Q1 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend