WRB Institutional Ownership
Who owns Berkley W R Corp and what the big funds did with it last quarter, from every SEC 13F filing. 953 funds reported holding WRB at Jun 30, 2026, together owning 75.1% of the company.
- ●442 buying vs 409 selling
- ●Held by funds +0.0 pts
- ▲Funds holding +23
- ▲Superinvestors: 3 added, 0 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 953 | 930 | +2.5% |
| In funds' top 10 | 15 | 14 | +7.1% |
| 13F shares | 279M | 279M | −0.0% |
| Held by funds | 75.1% | 75.1% | 0.0 pts |
| New positions | 110 | 82 | +34.1% |
| Increased | 332 | 238 | +39.5% |
| Reduced | 324 | 418 | −22.5% |
| Sold out | 85 | 107 | −20.6% |
| Calls (shares) | 2,400 | 11K | −78.9% |
| Puts (shares) | 0 | 3,100 | −100.0% |
| Put/call ratio | 0.00 | 0.27 | −100.0% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in WRB
All superinvestors →
Who owns WRB
share of fund held shares- Index and passive funds35.6%
- Active managers and hedge funds24.7%
- Banks and brokers15.7%
- Pensions, insurers and other24.0%
The top 10 holders own 57.4% of all WRB shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
289 funds changed their position- Principal Financial Group IncTrimmed−509K sh
- Wealth Enhancement Advisory Services, LLCTrimmed−296K sh
- Parnassus Investments, LLCAdded+182K sh
- Aware Super Pty Ltd as trustee of Aware SuperTrimmed−137K sh
- Achmea Investment Management B.V.New+99K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Mitsui Sumitomo Insurance Co Ltd | 15.83% | 58.8M | $4.1B | 0 |
| 2 | BlackRock, Inc. | 5.91% | 21.9M | $1.5B | −1.3M |
| 3 | Vanguard Capital Management LLC | 5.03% | 18.7M | $1.3B | −235K |
| 4 | Vanguard Portfolio Management LLC | 3.92% | 14.6M | $1B | −199K |
| 5 | State Street Corp | 3.81% | 14.1M | $1B | −279K |
| 6 | Geode Capital Management, LLC | 2.23% | 8.3M | $588M | +39K |
| 7 | Morgan Stanley | 2.22% | 8.3M | $582M | −2.2M |
| 8 | Kayne Anderson Rudnick Investment Management LLC | 1.72% | 6.4M | $450M | −1.4M |
| 9 | Invesco Ltd. | 1.35% | 5M | $355M | −23K |
| 10 | Goldman Sachs Group Inc | 1.12% | 4.2M | $293M | +1.3M |
- Norges Bank+3.1M sh+$222M
- AQR Capital Management LLC+1.8M sh+$129M
- Arrowstreet Capital, Limited Partnership+1.8M sh+$126M
- Two Sigma Investments, LP+1.7M sh+$123M
- Goldman Sachs Group Inc+1.3M sh+$92.2M
- Bristol Gate Capital Partners Inc.+918K sh+$64.7M
- Squarepoint Ops LLC+698K sh+$49.2M
- Healthcare of Ontario Pension Plan Trust Fund+543K sh+$38.3M
- Morgan Stanley−2.2M sh−$152M
- Kayne Anderson Rudnick Investment Management LLC−1.4M sh−$98.4M
- BlackRock, Inc.−1.3M sh−$94.9M
- Jpmorgan Chase & Co−1.1M sh−$79.5M
- PFA Pension, Forsikringsaktieselskab−789K sh−$55.7M
- Bank of New York Mellon Corp−686K sh−$48.4M
- BloombergSen Inc.−568K sh−$40.1M
- Maren Capital LLC−505K sh−$33.4M
WRB institutional ownership FAQ
Who owns the most WRB stock?
In Q2 2026 13F filings the largest holder of WRB was Mitsui Sumitomo Insurance Co Ltd, followed by BlackRock, Inc. and Vanguard Capital Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of WRB is owned by institutions?
Funds that file 13F reports held 75.1% of WRB's shares at Jun 30, 2026, compared with 75.1% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying WRB?
In Q2 2026, 442 funds bought WRB (110 of them new positions) and 409 sold (85 sold out completely). Among well known investors, 3 added and 0 cut. Our fund sentiment for WRB is bullish.
What is WRB's institutional put/call ratio?
Funds reported $0 of WRB puts against $169K of calls, a put/call ratio of 0.00 (0.27 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this WRB ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.