CB
Chubb Ltd
Chubb Ltd historical holders
total: 14
Berkshire Hathaway Chubb Ltd transactions over time
- Total transactions:
- 6
- New positions:
- 1
- Added:
- 5
- Held since:
- 2023 Q3
- Held for:
- 11 quarters
- Latest activity:
- 2025 Q4
Warren Buffett has been an institutional investor in Chubb Ltd (CB) since 2023 Q3. According to 2026 Q1 report, Warren Buffett holds 34,249,183 shares with a market value of roughly $11.16B representing 4.24% of their equity portfolio. The fund/company first acquired CB in 2023 Q3, initially purchasing about 8.14M shares. Since the initial investment, Berkshire Hathaway has made 5 more transactions in this position.
Does Warren Buffett still hold CB?
Yes, Warren Buffett continues to hold Chubb Ltd (CB). According to their 2026 Q1 report, they maintain a position of 34,249,183 shares valued at approximately $11.16B, representing 4.24% of their equity portfolio.
When did Warren Buffett first invest in CB?
Warren Buffett first invested in Chubb Ltd (CB) in 2023 Q3 at the reported quarter-end price of $208.18 per share, acquiring 8,143,530 shares in their initial purchase.
What is Warren Buffett's average cost basis for CB?
Based on historical transaction data, Warren Buffett's estimated cost basis for Chubb Ltd (CB) is approximately $242.73 per share. This represents their average reported price* across all buy transactions.
Estimated cost basis*
- Weighted AVG buy price:
- $242.73
CB transactions history by Berkshire Hathaway
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.