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BRK.B · Unknown

Berkshire Hathaway Inc Del

USA Unknown Filing: 2026-03-31
65/100
Smart-money confidence1 of 3 sources positive
High confidence

No standout activity across the feeds we track.

Hedge funds
86
Congress
No data
Insiders
No data
Cross-source blend of hedge-fund breadth, Congress trades, and insider Form 4s.  ·  how the score works
Who's behind the signal
Every informed buyer we can see on BRK.B, across all three feeds.
Hedge funds · 14
Soros Fund Management (Soros) New position
Polen Capital Management Increased +4%
Citadel Advisors Increased +14%
Tudor Investment (Paul Tudor Jones) Increased +154%
Millennium Management (Englander) Increased +159%
Gotham Asset Mgmt (Greenblatt) Increased +4%
+8 more in the full breakdown below ↓
Congress · 0
No congressional trades on record.
Insiders
No significant Form 4 insider activity in the window.
Congressional trades · 50 on record
Disclosures from 2021-01-04 to 2025-12-04
Trade date Member Chamber Action Amount
2025-12-04 Mike Collins · R-GA House Bought $50,001 - $100,000
2022-04-01 Josh Gottheimer · D-NJ House Sold $1,001 - $15,000
2022-03-21 Scott Franklin · R-FL House Bought $100,001 - $250,000
2022-03-18 Michael C. Burgess · R-TX House Sold $15,001 - $50,000
2022-02-28 Donald S. Beyer, Jr. · D-VA House Sold $1,001 - $15,000
2022-02-09 Michael C. Burgess · R-TX House Bought $15,001 - $50,000
2022-02-03 Donald S. Beyer, Jr. · D-VA House Bought $1,001 - $15,000
2022-01-28 Donald S. Beyer, Jr. · D-VA House Bought $1,001 - $15,000
2022-01-20 Donald S. Beyer, Jr. · D-VA House Sold $15,001 - $50,000
2021-12-21 Ed Perlmutter · D-CO House Sold $1,001 - $15,000
Show the other 40
Trade date Member Chamber Action Amount
2021-11-15 David Rouzer · R-NC House Sold $1,001 - $15,000
2021-10-29 Donald S. Beyer, Jr. · D-VA House Bought $1,001 - $15,000
2021-10-21 Cynthia Axne · D-IA House Sold $1,001 - $15,000
2021-09-15 Ed Perlmutter · D-CO House Sold $1,001 - $15,000
2021-09-08 Austin Scott · R-GA House Sold $15,001 - $50,000
2021-09-02 Zoe Lofgren · D-CA House Bought $1,001 - $15,000
2021-08-25 Blake D. Moore · R-UT House Bought $1,001 - $15,000
2021-07-19 Blake D. Moore · R-UT House Bought $1,001 - $15,000
2021-07-16 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-06-25 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-06-24 Josh Gottheimer · D-NJ House Sold $1,001 - $15,000
2021-06-18 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-06-16 Ed Perlmutter · D-CO House Bought $1,001 - $15,000
2021-06-14 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-05-21 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-05-11 Blake D. Moore · R-UT House Bought $1,001 - $15,000
2021-04-30 Blake D. Moore · R-UT House Bought $1,001 - $15,000
2021-04-14 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-04-13 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-04-09 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-04-01 Deborah K. Ross · D-NC House Bought $15,001 - $50,000
2021-03-31 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-03-26 Blake D. Moore · R-UT House Bought $1,001 - $15,000
2021-03-24 Mo Brooks · R-AL House Bought $1,001 - $15,000
2021-03-15 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-03-10 Michael T. McCaul · R-TX House Bought $100,001 - $250,000
2021-03-10 Michael T. McCaul · R-TX House Sold $100,001 - $250,000
2021-03-05 John A. Yarmuth · D-KY House Sold $1,001 - $15,000
2021-03-04 Blake D. Moore · R-UT House Bought $1,001 - $15,000
2021-02-26 Michael T. McCaul · R-TX House Sold $100,001 - $250,000
2021-02-25 Blake D. Moore · R-UT House Bought $1,001 - $15,000
2021-02-24 Blake D. Moore · R-UT House Bought $1,001 - $15,000
2021-02-17 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-02-16 Peter Meijer · R-MI House Sold $1,001 - $15,000
2021-02-11 Ro Khanna · D-CA House Bought $1,001 - $15,000
2021-02-11 Ro Khanna · D-CA House Bought $15,001 - $50,000
2021-02-01 Kathy Castor · D-FL House Bought $1,001 - $15,000
2021-01-28 Peter Meijer · R-MI House Sold $1,001 - $15,000
2021-01-13 Peter Meijer · R-MI House Bought $1,001 - $15,000
2021-01-04 Chris Jacobs · R-NY House Sold $50,001 - $100,000
14
Investors
1
New positions
5
Increasing
2
Decreasing
6
Unchanged
Price History
Loading price data...
Return: High: Low:
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
Soros Fund Management (Soros)
Trust weight: 1.5×
New position
% of portfolio
1.2%
Position change
NEW
1.2% of Soros Fund Management's portfolio
Polen Capital Management
Trust weight: 1.3×
Increased +4%
% of portfolio
1.0%
Position change
+4%
1.0% of Polen Capital Management's portfolio
Citadel Advisors
Trust weight: 1.0×
Increased +14%
% of portfolio
0.4%
Position change
+14%
0.4% of Citadel Advisors's portfolio
Tudor Investment (Paul Tudor Jones)
Trust weight: 1.2×
Increased +154%
% of portfolio
0.3%
Position change
+154%
0.3% of Tudor Investment's portfolio
Millennium Management (Englander)
Trust weight: 1.0×
Increased +159%
% of portfolio
0.2%
Position change
+159%
0.2% of Millennium Management's portfolio
Gotham Asset Mgmt (Greenblatt)
Trust weight: 1.1×
Increased +4%
% of portfolio
0.1%
Position change
+4%
0.1% of Gotham Asset Mgmt's portfolio
Himalaya Capital (Li Lu)
Trust weight: 1.5×
Unchanged
% of portfolio
13.4%
Position change
—
13.4% of Himalaya Capital's portfolio
Markel Group (Tom Gayner)
Trust weight: 1.4×
Unchanged
% of portfolio
5.8%
Position change
—
5.8% of Markel Group's portfolio
Pabrai Investment Funds (Pabrai)
Trust weight: 1.5×
Unchanged
% of portfolio
4.8%
Position change
—
4.8% of Pabrai Investment Funds's portfolio
Tweedy Browne
Trust weight: 1.2×
Unchanged
% of portfolio
3.7%
Position change
—
3.7% of Tweedy Browne's portfolio
Davis Selected Advisers
Trust weight: 1.1×
Unchanged
% of portfolio
1.6%
Position change
—
1.6% of Davis Selected Advisers's portfolio
AQR Capital Management
Trust weight: 1.0×
Unchanged
% of portfolio
0.4%
Position change
—
0.4% of AQR Capital Management's portfolio
D.E. Shaw & Co
Trust weight: 1.0×
Decreased −23%
% of portfolio
0.2%
Position change
−23%
0.2% of D.E. Shaw & Co's portfolio
Akre Capital Management (Akre)
Trust weight: 1.5×
Decreased −13%
% of portfolio
0.1%
Position change
−13%
0.1% of Akre Capital Management's portfolio
Portfolio Allocation
How much of each investor's portfolio is allocated to BERKSHIRE HATHAWAY INC DEL
⚠ Disclaimer: This page is for informational purposes only. Holdings data from SEC EDGAR 13F filings, delayed up to 135 days. Not a recommendation to buy or sell BERKSHIRE HATHAWAY INC DEL or any security.

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