InvestorLens

BRK-B — BERKSHIRE HATHAWAY INC DEL

Public company

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For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying BRK-B?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence
60
Institutional Conviction
Mixed · 3 buying vs 2 selling last quarter
48
Macro Tailwind
Macro conditions are mixed for this sector
55
Why? — Evidence & Confidence ▾

Of 5 tracked investors who changed their BRK-B position last quarter, 3 bought and 2 sold (60% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 55/100 in a Squeeze regime).

Supporting evidence
  • +3 tracked investors added or increased positions last quarter (David Tepper, Steve Cohen, Paul Tudor Jones)
  • +6 tracked investors reported holding BRK-B at their latest filing
  • +Macro Health is 55/100 in a Squeeze regime — historically acceptable for this sectorsource
Contradicting evidence — always shown
  • −2 tracked investors reduced or exited last quarter (2 reduced, 0 sold out)
  • −13F data is disclosed up to 45 days after quarter end — positions may have changed since
Know the limits
  • · 13F disclosure lag (up to 45 days)
  • · Tracked investors are a sample, not the whole market
  • · Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 8/20/2026.

About BERKSHIRE HATHAWAY INC DEL (BRK-B)

BERKSHIRE HATHAWAY INC DEL (BRK-B) appears in the most recent 13F filings of 6 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $3.3B. Across recent filings, tracked investors recorded 9 new positions, 18 increased, 11 reduced, and 3 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in BRK-B

66
/100
Institutional Accumulation
Added / Increased27
Reduced11
Exited3
BearishBullish
Crowded Trade Score™

How many top investors track BRK-B

40
/100
Moderate Interest
6investors

Several tracked investors have exposure.

UndiscoveredCrowded
151015+

BRK-B Ownership Composition

How BERKSHIRE HATHAWAY INC DEL is held across tracked investor types, based on reported 13F positions.

Dominant Type
Multi-Strategy / Quant
94% of tracked value
Institutions
6
tracked investors
Total Reported
$4.8B
combined 13F value
Types3
  • Multi-Strategy / Quant94.3%
  • Macro5.4%
  • Value & Distressed0.3%
Multi-Strategy / Quant(3)
94.3%
Macro(2)
5.4%
Value & Distressed(1)
0.3%

Tracked investors currently reporting BRK-B

1 tracked investor has since exited this position — listed separately below.

  • Ken GriffinJun 30, 2026
    Citadel Advisors
    Shares
    6.6M
    Value
    $3.3B
    % Portfolio
    0.38%
  • Izzy EnglanderJun 30, 2026
    Millennium Management
    Shares
    2.3M
    Value
    $1.1B
    % Portfolio
    0.41%
  • Paul Tudor JonesJun 30, 2026
    Tudor Investment Corp
    Shares
    385.3K
    Value
    $192.8M
    % Portfolio
    0.27%
  • Steve CohenJun 30, 2026
    Point72 Asset Management
    Shares
    150.7K
    Value
    $75.4M
    % Portfolio
    0.08%
  • George SorosJun 30, 2026
    Soros Fund Management
    Shares
    133.3K
    Value
    $66.7M
    % Portfolio
    0.82%
  • David TepperJun 30, 2026
    Appaloosa Management
    Shares
    25K
    Value
    $12.5M
    % Portfolio
    0.16%

Previously held BRK-B

These investors reported BRK-B in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.

InvestorFirmLast reported sharesValue thenLast held
Ray DalioBridgewater Associates40.2K$14.1MSep 30, 2023

Recent activity

Frequently asked questions

How many institutional investors hold BRK-B?
6 tracked institutional investors disclosed a position in BRK-B (BERKSHIRE HATHAWAY INC DEL) in their most recent 13F filing.
Who is the largest institutional holder of BRK-B?
Ken Griffin, Citadel Advisors, holds the largest disclosed position in BRK-B, valued at $3.3B.
Did institutional ownership of BRK-B increase or decrease?
Across recent 13F filings, tracked investors recorded 9 new positions, 18 increased, 11 reduced, and 3 fully exited BRK-B.
Where does this BRK-B ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.