BRK.B · Unknown
BERKSHIRE HATHAWAY INC DEL
Smart-money confidence
· 1 of 3 sources firing
Moderate — mixed signals
No standout activity across the feeds we track.
Hedge funds
84
Congress
No data
Insiders
No data
Raw conviction score 300
·
how the score works
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Who's behind the signal
Every informed buyer we can see on BRK.B, across all three feeds.
Hedge funds · 14
Tudor Investment (Paul Tudor Jones)
New position
Davis Selected Advisers
Increased +39%
Polen Capital Management
Increased +4%
AQR Capital Management
Increased +14%
Citadel Advisors
Increased +134%
Himalaya Capital (Li Lu)
Unchanged
+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 trade history · 1
Every disclosed buy & sell on record — STOCK Act filings
| Trade date | Member | Chamber | Action | Amount |
|---|---|---|---|---|
| 2025-12-04 | Mike Collins · R-GA | House | BOUGHT | $50,001 - $100,000 |
14
Investors
1
New positions
4
Increasing
6
Decreasing
3
Unchanged
Price History
Loading price data...
Return:
High:
Low:
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
Trust weight: 1.2×
% of portfolio
0.1%
Position change
NEW
0.1% of Tudor Investment's portfolio
Trust weight: 1.1×
% of portfolio
1.7%
Position change
+39%
1.7% of Davis Selected Advisers's portfolio
Trust weight: 1.3×
% of portfolio
1.0%
Position change
+4%
1.0% of Polen Capital Management's portfolio
Trust weight: 1.0×
% of portfolio
0.4%
Position change
+14%
0.4% of AQR Capital Management's portfolio
Trust weight: 1.0×
% of portfolio
0.4%
Position change
+134%
0.4% of Citadel Advisors's portfolio
Trust weight: 1.5×
% of portfolio
12.6%
Position change
—
12.6% of Himalaya Capital's portfolio
Trust weight: 1.4×
% of portfolio
6.2%
Position change
—
6.2% of Markel Group's portfolio
Trust weight: 1.5×
% of portfolio
5.2%
Position change
—
5.2% of Pabrai Investment Funds's portfolio
Trust weight: 1.2×
% of portfolio
3.9%
Position change
−2%
3.9% of Tweedy Browne's portfolio
Trust weight: 1.0×
% of portfolio
0.2%
Position change
−19%
0.2% of D.E. Shaw & Co's portfolio
Trust weight: 1.1×
% of portfolio
0.2%
Position change
−3%
0.2% of Gotham Asset Mgmt's portfolio
Trust weight: 1.0×
% of portfolio
0.1%
Position change
−64%
0.1% of Millennium Management's portfolio
Trust weight: 1.5×
% of portfolio
0.1%
Position change
−15%
0.1% of Akre Capital Management's portfolio
Trust weight: 1.1×
% of portfolio
0.0%
Position change
−62%
0.0% of Point72'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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