Berkshire Hathaway CB trades
Warren Buffett
Warren Buffett Chubb Ltd stake
total: 135
Trades details
- Total transactions:
- 6
- New positions:
- 1
- Added:
- 5
- Held since:
- 2023 Q3
- Held for:
- 12 quarters
- Latest activity:
- 2025 Q4
According to 2026 Q2 report, Warren Buffett holds 34,249,183 Chubb Ltd (CB) shares with a market value of roughly $11.67B accounting for 3.90% of the overall portfolio. To date, the estimated cost basis is nearly $242.73 for "buy" trades. Berkshire Hathaway first purchased CB in 2023 Q3, initially acquiring about 8.14M shares. Since the initial investment in Chubb Ltd (CB), Berkshire Hathaway has made 5 more transactions.
When did Warren Buffett buy Chubb Ltd (CB)?
Warren Buffett first invested in Chubb Ltd (CB) in 2023 Q3 at the reported quarter-end price of $208.18 per share.
What's the cost basis of Berkshire Hathaway's CB stake?
The estimated cost basis for Chubb Ltd (CB) stake is around $242.73 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $242.73
Warren Buffett's historical trades in Chubb Ltd
6 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2025 Q4
|
3.90%
|
34,249,183
|
$312.12
|
$10,689,854,998
|
+9.31% (+2,916,288)
|
+0.33%
|
|
2025 Q3
|
3.31%
|
31,332,895
|
$282.25
|
$8,843,709,614
|
+15.90% (+4,299,111)
|
+0.45%
|
|
2024 Q2
|
2.46%
|
27,033,784
|
$255.08
|
$6,895,777,623
|
+4.28% (+1,109,944)
|
+0.1%
|
|
2024 Q1
|
2.03%
|
25,923,840
|
$259.13
|
$6,717,644,659
|
+28.97% (+5,823,840)
|
+0.46%
|
|
2023 Q4
|
1.29%
|
20,100,000
|
$226.00
|
$4,542,600,000
|
+146.82% (+11,956,470)
|
+0.77%
|
|
2023 Q3
|
0.54%
|
8,143,530
|
$208.18
|
$1,695,320,075
|
new
|
+0.54%
|
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.