Berkley W R Corp
WRB- Exchange
- NYSE
- Industry
- Fire, Marine & Casualty Insurance
- SEC CIK
- 0000011544
No open-market purchases or sales by Berkley W R Corp insiders were filed in the last 90 days; 954 institutions reported holding it in 13F filings for Q2 2026, worth $19.7B in total; Markel Group is the only superinvestor holding it.
Superinvestors holding WRB, Q2 2026
1 superinvestor reports holding Berkley W R Corp on Form 13F, worth $4.28M in total. Weight is Berkley W R Corp's share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Markel GroupTom Gayner | <0.1% | 60,750 | $4.28M | Unchanged |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of WRB each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q3 2024
1 superinvestor holding at quarter end
- Added
- Markel Group (+50.0%)
Q2 2024
1 superinvestor holding at quarter end
- Sold out
- Maverick Capital
Q1 2024
2 superinvestors holding at quarter end
Q4 2022
1 superinvestor holding at quarter end
- Sold out
- Maverick Capital
Q3 2022
2 superinvestors holding at quarter end
Q1 2022
1 superinvestor holding at quarter end
- Added
- Markel Group (+50.0%)
- Sold out
- Maverick Capital
Q4 2021
2 superinvestors holding at quarter end
- Reduced
- Maverick Capital (−79.9%)
Q3 2021
2 superinvestors holding at quarter end
- Added
- Maverick Capital (+1,188.5%)
Q2 2021
2 superinvestors holding at quarter end