SAM

Boston Beer Company Inc-A Cross-source read
Consumer StaplesCUSIP 100557107

Among active 13F managers last quarter, 6 opened and 30 added, while 19 reduced; the largest holder to move was AQR Capital Management LLC (+48%). No open-market insider trades in the last 180 days.

Tracked 13F holders
302
147 in Q2 2026 filings
13F value (tracked)
$1.6B
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
36 adding · 19 trimming
Insiders · Form 4 open-market, 180d
0 buying · 0 selling
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Who owns SAM?

302 tracked 13F filers · ranked by shares held

302 tracked 13F filers disclose a position in SAM as of the latest SEC 13F filings, a combined $1.6B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1BlackRock, Inc.770K
$177.5M
+6.2%
Added · +45K sh
Q1 2026
2AQR Capital Management LLC652K
$150.2M
+48%
Added · +212K sh
Q1 2026
3Vanguard Portfolio Management LLC634K
$146.2M
New filer
Inherited book · not a new buyer
Q1 2026
4Vanguard Capital Management LLC341K
$78.5M
New filer
Inherited book · not a new buyer
Q1 2026
5State Street Corp315K
$55.8M
+23%
Added · +60K sh
Q2 2026
6American Century Companies Inc288K
$66.4M
+50%
Added · +96K sh
Q1 2026
7Dimensional Fund Advisors LP274K
$63.0M
+6.0%
Added · +16K sh
Q1 2026
8Global Alpha Capital Management Ltd.268K
$47.4M
+81%
Added · +120K sh
Q2 2026
9Arrowstreet Capital, Limited Partnership245K
$56.5M
−9.7%
Reduced · −26K sh
Q1 2026
10Quantinno Capital Management LP231K
$53.1M
+155%
Added · +140K sh
Q1 2026
11UBS Group AG219K
$50.4M
+0.9%
Added · +2K sh
Q1 2026
12Geode Capital Management, LLC205K
$36.4M
+45%
Added · +63K sh
Q2 2026
13FMR LLC195K
$45.0M
−46%
Reduced · −166K sh
Q1 2026
14Goldman Sachs Group Inc145K
$33.4M
+160%
Added · +89K sh
Q1 2026
15Morgan Stanley135K
$31.0M
+18%
Added · +20K sh
Q1 2026
16Southeastern Asset Management Inc118K
$27.3M
−20%
Reduced · −30K sh
Q1 2026
17Qube Research & Technologies Ltd111K
$25.6M
−16%
Reduced · −22K sh
Q1 2026
18Charles Schwab Investment Management Inc107K
$24.6M
+8.3%
Added · +8K sh
Q1 2026
19Millennium Management LLC97K
$22.3M
+70%
Added · +40K sh
Q1 2026
20Renaissance Technologies LLC94K
$21.6M
+13%
Added · +11K sh
Q1 2026
21Ameriprise Financial Inc92K
$21.1M
+0.7%
Added · +626 sh
Q1 2026
22Woodson Capital Management, LP90K
$20.7M
−10%
Reduced · −10K sh
Q1 2026
23Northern Trust Corp79K
$18.2M
+5.5%
Added · +4K sh
Q1 2026
24T. Rowe Price Investment Management, Inc.79K
Withheld
3k×
Added · +79K sh
Q1 2026
25Calamos Advisors LLC65K
$11.6M
−2.1%
Reduced · −1K sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership. 1 value row is withheld because the reported units disagree with same-security peers; share counts are unchanged.

Is SAM being bought or sold by institutions?

Last quarter, 6 funds opened a new position in SAM and 30 added to an existing one, while 19 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
6
funds took a first position
Added
30
added to an existing position
Reduced
19
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own SAM also own

CompanyCo-held byTheir position there
Amazon.com IncAMZN165 funds$153.1B
Microsoft CorpMSFT164 funds$205.3B
Meta Platforms Inc-Class AMETA164 funds$87.0B
Nvidia CorpNVDA163 funds$301.7B
Apple IncAAPL161 funds$223.2B
Alphabet Inc-CL AGOOGL157 funds$125.7B
Visa Inc-Class A SharesV157 funds$48.3B
JPMorgan Chase & CoJPM155 funds$45.5B
Berkshire Hathaway Inc-CL BBRK/B155 funds$28.6B
Advanced Micro DevicesAMD155 funds$26.7B
Bank Of America CorpBAC155 funds$24.0B
Alphabet Inc-CL CGOOG154 funds$98.3B

Ranked by how many of SAM's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in SAM.

Insider activity (Form 4)

Full insider page →
Net · 180d
$0
0 open-market transactions
DateInsiderRoleActionSharesValue
Nov 4, 2025Spillane MichaelDirectorSell (S)
2 lots, same day
3K$642K
Aug 8, 2025Fritsch Annette NVP of Product Design and R&DSell (S)
2 lots, same day
600$132K
Mar 13, 2025Valette Jean MichelDirectorSell (S)
2 lots, same day
4K$800K
Jan 2, 2025O'Boyle Carolyn L.Chief People OfficerSell (S)62$19K
Dec 2, 2024O'Boyle Carolyn L.Chief People OfficerSell (S)62$20K
Nov 1, 2024O'Boyle Carolyn L.Chief People OfficerSell (S)62$18K
Oct 1, 2024O'Boyle Carolyn L.Chief People OfficerSell (S)62$18K
Sep 3, 2024O'Boyle Carolyn L.Chief People OfficerSell (S)63$17K
Aug 13, 2024O'Boyle Carolyn L.Chief People OfficerSell (S)63$17K
Apr 1, 2024O'Boyle Carolyn L.Chief People OfficerSell (S)101$31K
Mar 1, 2024O'Boyle Carolyn L.Chief People OfficerSell (S)102$31K
Feb 1, 2024O'Boyle Carolyn L.Chief People OfficerSell (S)102$36K

One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.

Do institutions, insiders and Congress agree?

Mixed signals

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
5632
Insiders
Form 4 open-market
00$0
US House
STOCK Act trades
00$0
Sector rotation
SAM is in Consumer Staples, which smart money is rotating OUT OF
$3.6B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

147 tracked filers in Q2 2026 filingsstill filing
0160320Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $252.6M
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Recent filings

15 most recent

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Connected entities for SAM

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Ask your agent what changed in SAM

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/SAM/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for SAM.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + the live filing stream, joined for SAM. Filings are public domain, sourced to SEC EDGAR.