Berkley W R Corp
Held by 11 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide 084423102 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide
In plain English: 11 of the investors we track own this stock. In the latest quarter, 6 of them bought more of it and 2 sold some or all of theirs (1 bought it for the first time). That tells you what they did last quarter — not what the stock will do next.
Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer
Managers holding
11
+1 vs last quarter (like-for-like)
Total value held
$675.81M
Across tracked managers
Average weight ⓘOn average, how big this stock is in the portfolios that own it (its share of each manager's reported portfolio value).
0.2%
Of each manager's book
QoQ value ⓘLike-for-like: only managers that filed both quarters are compared, so a manager filing late (or confidentially) does not look like buying or selling. Includes price changes.
+$184.98M
+68.8% vs last quarter
Net shares bought
+2.4M
Est. net flow +$167.75M
Quarter activity
6 bought · 2 sold
1 new · 0 sold out
Tracked capital in this stock
Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).
Aggregate buying and selling
Net share change reported each quarter
Who owns WRB?
Who added and who trimmed · Q2 2026
Estimated dollar change per manager (change in shares × this quarter's price). Click a bar to open the manager.
Who owns WRB? — Q2 2026
Holders ranked by position size, with each one's quarter-over-quarter change.
Column filters
| # | Manager | Fund | Shares | Value ↓ | % of their portfolio | QoQ | Δ shares | Δ shares % | Est. Δ value ⓘChange in shares × this quarter's price |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Norges Bank | Norges Bank Investment Management | 3.15M | $222.07M | 0.0% | — | — | — | — |
| 2 | Two Sigma | Two Sigma Investments | 2.01M | $142.00M | 0.1% | Added | +1.7M | +637.5% | +$122.75M |
| 3 | Ken Griffin | Citadel Advisors | 1.48M | $104.10M | 0.1% | Added | +81.8K | +5.9% | +$5.77M |
| 4 | Israel Englander | Millennium Management | 936.19K | $66.03M | 0.0% | Added | +477.0K | +103.9% | +$33.64M |
| 5 | Parnassus Investments | Parnassus Investments LLC | 779.77K | $55.00M | 0.1% | Reduced | -26.3K | -3.3% | -$1.86M |
| 6 | Charles Brandes | Brandes Investment Partners | 516.13K | $36.40M | 0.3% | Added | +2.9K | +0.6% | +$205.60K |
| 7 | David Shaw | D.E. Shaw & Co. | 290.36K | $20.48M | 0.0% | Added | +89.6K | +44.6% | +$6.32M |
| 8 | Bruce Berkowitz | Fairholme Capital Management | 256.35K | $18.08M | 1.2% | Held | 0 | 0.0% | $0 |
| 9 | Mario Gabelli | GAMCO Investors | 90.83K | $6.41M | 0.1% | Reduced | -385 | -0.4% | -$27.15K |
| 10 | Tom Gayner | Markel Group | 60.75K | $4.28M | 0.0% | Held | 0 | 0.0% | $0 |
| 11 | Ray Dalio | Bridgewater Associates | 13.50K | $952.08K | 0.0% | New | +13.5K | — | +$952.08K |
Column filters
No tracked manager sold out of this stock this quarter.
Politician trades
Column filters
| Politician | Date | Ticker | Asset | Type | Reported range ⓘThe dollar range the politician reported. Exact amounts are not disclosed. | Est. size ⓘOur estimate only: the midpoint of the reported range. | Owner | Account ⓘSubholding Of: the account the trade was in, as named on the report (e.g. an IRA or a brokerage account). The same stock bought on the same day in different accounts is a separate trade in each account. | Filed ↓ | Filing delay ⓘDays between the trade and the report. Over 45 days is late under the STOCK Act. | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Gil Cisneros Politician | Jun 5, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Jul 2, 2026 | 27 days | PTR ↗ |
| Gil Cisneros Politician | May 7, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Jun 8, 2026 | 32 days | PTR ↗ |
| Gil Cisneros Politician | May 14, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Jun 8, 2026 | 25 days | PTR ↗ |
| Gil Cisneros Politician | May 12, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Jun 8, 2026 | 27 days | PTR ↗ |
| Gil Cisneros Politician | May 13, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Jun 8, 2026 | 26 days | PTR ↗ |
| Gil Cisneros Politician | May 19, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Jun 8, 2026 | 20 days | PTR ↗ |
| Gil Cisneros Politician | May 29, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Jun 8, 2026 | 10 days | PTR ↗ |
| Gil Cisneros Politician | Mar 18, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Apr 7, 2026 | 20 days | PTR ↗ |
| Gil Cisneros Politician | Jan 6, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Feb 13, 2026 | 38 days | PTR ↗ |
| Gil Cisneros Politician | Jan 20, 2026 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Feb 13, 2026 | 24 days | PTR ↗ |
| Lisa McClain Politician | Oct 30, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | Charles Schwab 401K > Schwab 893 | Nov 21, 2025 | 22 days | PTR ↗ |
| Lisa McClain Politician | Oct 30, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | Charles Schwab Brokerage Account 924 | Nov 21, 2025 | 22 days | PTR ↗ |
| Lisa McClain Politician | Oct 31, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | Charles Schwab 401K > Schwab 893 | Nov 21, 2025 | 21 days | PTR ↗ |
| Gil Cisneros Politician | Jul 31, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Aug 14, 2025 | 14 days | PTR ↗ |
| Lisa McClain Politician | Jul 16, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Purchase | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Spouse | Charles Schwab Brokerage Account 924 | Aug 13, 2025 | 28 days | PTR ↗ |
| Gil Cisneros Politician | Apr 7, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | May 6, 2025 | 29 days | PTR ↗ |
| Gil Cisneros Politician | Apr 14, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | May 6, 2025 | 22 days | PTR ↗ |
| Gil Cisneros Politician | Apr 28, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | May 6, 2025 | 8 days | PTR ↗ |
| Gil Cisneros Politician | Mar 17, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Apr 7, 2025 | 21 days | PTR ↗ |
| Gil Cisneros Politician | Apr 1, 2025 | WRB | W.R. Berkley Corporation Common Stock (WRB) [ST] | Sale (partial) | $1,001 - $15,000 | Est. $8,000 (midpoint of reported range $1,001–$15,000) | Self | 150 Main Street Trust > Bank of America | Apr 7, 2025 | 6 days | PTR ↗ |