W. R. Berkley Corporation (WRB) Ownership
WRB ownership summary
as of October 18, 2026- Institutions
- 76.2% of shares outstanding
- Insiders
- 26.36% of shares outstanding
- Shares outstanding
- 371.2M
- Float
- 243.7M shares available to trade
- Short interest
- 5.59% 13.1M shares short
- Days to cover
- 3.59 short interest down 13.7% vs prior month
- Institutions 76.19%
- Insiders 26.36%
WRB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Mitsui Sumitomo Insurance Co Ltd | 15.83% | 58.8M | $4.43B | — | June 30, 2026 |
| 2 | BlackRock Inc | 5.91% | 21.9M | $1.65B | −1.3M (−5.8%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 5.03% | 18.7M | $1.41B | −234,872 (−1.2%) | June 30, 2026 |
| 4 | Vanguard Portfolio Management, LLC | 3.92% | 14.6M | $1.10B | −199,262 (−1.4%) | June 30, 2026 |
| 5 | State Street Corp | 3.81% | 14.1M | $1.07B | −278,782 (−1.9%) | June 30, 2026 |
| 6 | Geode Capital Management, LLC | 2.23% | 8.3M | $623.6M | +39,067 (+0.5%) | June 30, 2026 |
| 7 | Morgan Stanley - Brokerage Accounts | 2.22% | 8.3M | $622.4M | −2.2M (−20.7%) | June 30, 2026 |
| 8 | Kayne Anderson Rudnick Investment Management LLC | 1.72% | 6.4M | $481.0M | −1.4M (−18.0%) | June 30, 2026 |
| 9 | Amvescap Plc. | 1.35% | 5.0M | $379.2M | −23,481 (−0.5%) | June 30, 2026 |
| 10 | The Goldman Sachs Group Inc | 1.12% | 4.2M | $313.6M | +1.3M (+45.8%) | June 30, 2026 |
| 11 | Dimensional Fund Advisors, Inc. | 1.09% | 4.0M | $304.8M | +273,666 (+7.3%) | June 30, 2026 |
| 12 | Wells Fargo & Co | 1.00% | 3.7M | $280.6M | −68,708 (−1.8%) | June 30, 2026 |
| 13 | AQR Capital Management LLC | 0.99% | 3.7M | $277.6M | +1.8M (+99.1%) | June 30, 2026 |
| 14 | First Trust Advisors L.P. | 0.98% | 3.6M | $273.4M | −348,071 (−8.8%) | June 30, 2026 |
| 15 | NORGES BANK | 0.85% | 3.1M | $237.5M | −3.1M (−49.3%) | June 30, 2026 |
| 16 | Bank of America Corp | 0.77% | 2.8M | $214.9M | −55,109 (−1.9%) | June 30, 2026 |
| 17 | UBS Group AG | 0.76% | 2.8M | $213.8M | −432,454 (−13.2%) | June 30, 2026 |
| 18 | Arrowstreet Capital Limited Partnership | 0.70% | 2.6M | $195.2M | +1.8M (+222.3%) | June 30, 2026 |
| 19 | Northern Trust Corp | 0.69% | 2.6M | $192.5M | −152,697 (−5.6%) | June 30, 2026 |
| 20 | HHG PLC | 0.66% | 2.5M | $185.4M | −1.1M (−30.9%) | March 31, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 5 holders added 5.2M shares and 14 cut 10.9M.
WRB top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.39% | 8.9M | $670.0M | −10,124 (−0.1%) | August 31, 2026 |
| 2 | Vanguard 500 Index Investor | 1.60% | 5.9M | $447.5M | −1.9M (−24.0%) | September 30, 2026 |
| 3 | Vanguard MStar Mid Cap Index Instl | 1.18% | 4.4M | $329.7M | −1.7M (−27.6%) | September 30, 2026 |
| 4 | Fidelity 500 Index | 1.03% | 3.8M | $287.9M | +14,667 (+0.4%) | August 31, 2026 |
| 5 | Eaton Vance Atlanta Capital SMID-Cap I | 0.91% | 3.4M | $253.6M | −79,000 (−2.3%) | August 31, 2026 |
| 6 | iShares Core S&P 500 ETF | 0.81% | 3.0M | $227.6M | −4,847 (−0.2%) | September 30, 2026 |
| 7 | Invesco S&P 500® Equal Weight ETF | 0.75% | 2.8M | $211.0M | −5,795 (−0.2%) | September 30, 2026 |
| 8 | State Street® SPDR® S&P 500® ETF | 0.75% | 2.8M | $209.6M | — | September 30, 2026 |
| 9 | First Trust Capital Strength ETF | 0.57% | 2.1M | $160.8M | −1,353 (−0.1%) | September 30, 2026 |
| 10 | Polar Capital Global Ins A Inc | 0.57% | 2.1M | $160.6M | — | August 31, 2026 |
| 11 | Vanguard MStar Value Index Investor | 0.52% | 1.9M | $146.7M | −720,774 (−27.0%) | September 30, 2026 |
| 12 | Scotia Wealth US Dividend Pool K | 0.42% | 1.6M | $118.9M | −34,100 (−2.1%) | July 31, 2026 |
| 13 | State Street®FinSelSectSPDR®ETF | 0.41% | 1.5M | $115.6M | −9,680 (−0.6%) | September 30, 2026 |
| 14 | Vanguard Dividend Appreciation ETF | 0.35% | 1.3M | $96.6M | −383,619 (−23.0%) | September 30, 2026 |
| 15 | Vanguard MStar Mid Cap Value ETF | 0.34% | 1.3M | $96.1M | −532,833 (−29.5%) | September 30, 2026 |
| 16 | Vanguard Institutional Index I | 0.32% | 1.2M | $90.3M | −373,868 (−23.8%) | September 30, 2026 |
| 17 | Invesco S&P 500® Low Volatility ETF | 0.26% | 964K | $72.7M | −5,292 (−0.5%) | September 30, 2026 |
| 18 | Parnassus Mid-Cap | 0.26% | 962K | $72.5M | +220,231 (+29.7%) | September 30, 2026 |
| 19 | iShares Russell Mid-Cap ETF | 0.24% | 892K | $67.3M | +1,634 (+0.2%) | September 30, 2026 |
| 20 | Vanguard High Dividend Yield ETF | 0.24% | 880K | $66.3M | −40,836 (−4.4%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
WRB insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-18 | Gilbert Ray Cisneros, Jr. | Sell | $67.22 | — | — |
| 2026-03-03 | Sumitomo Insurance Co L Mitsui | Buy | $72.20 | 112,176 | $8.1M |
| 2026-03-02 | Sumitomo Insurance Co L Mitsui | Buy | $72.92 | 146,000 | $10.6M |
| 2026-02-27 | Sumitomo Insurance Co L Mitsui | Buy | $71.63 | 147,000 | $10.5M |
| 2026-02-26 | Sumitomo Insurance Co L Mitsui | Buy | $71.67 | 153,000 | $11.0M |
| 2026-02-25 | Sumitomo Insurance Co L Mitsui | Buy | $71.42 | 168,868 | $12.1M |
| 2026-02-24 | Sumitomo Insurance Co L Mitsui | Buy | $70.81 | 164,786 | $11.7M |
| 2026-02-23 | Sumitomo Insurance Co L Mitsui | Buy | $71.15 | 220,000 | $15.7M |
| 2026-02-20 | Sumitomo Insurance Co L Mitsui | Buy | $70.80 | 160,582 | $11.4M |
| 2026-02-19 | Sumitomo Insurance Co L Mitsui | Buy | $70.65 | 345,000 | $24.4M |
| 2026-02-18 | Sumitomo Insurance Co L Mitsui | Buy | $70.64 | 285,000 | $20.1M |
| 2026-02-17 | Sumitomo Insurance Co L Mitsui | Buy | $71.19 | 281,386 | $20.0M |
| 2026-02-12 | Sumitomo Insurance Co L Mitsui | Buy | $71.99 | 20,000 | $1.4M |
| 2026-02-11 | Sumitomo Insurance Co L Mitsui | Buy | $70.59 | 24,030 | $1.7M |
| 2026-02-10 | Sumitomo Insurance Co L Mitsui | Buy | $69.38 | 33,966 | $2.4M |
| 2026-02-09 | Sumitomo Insurance Co L Mitsui | Buy | $69.38 | 40,000 | $2.8M |
| 2026-02-05 | Sumitomo Insurance Co L Mitsui | Buy | $71.10 | 20,000 | $1.4M |
| 2026-02-04 | Sumitomo Insurance Co L Mitsui | Buy | $70.20 | 25,000 | $1.8M |
| 2026-02-03 | Sumitomo Insurance Co L Mitsui | Buy | $68.64 | 40,000 | $2.7M |
| 2026-02-02 | Sumitomo Insurance Co L Mitsui | Buy | $67.75 | 250,221 | $17.0M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
WRB shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns WRB
Institutional investors own 76.2% of W. R. Berkley's shares and insiders 26.36%. The largest holder is Mitsui Sumitomo Insurance Co Ltd with 15.83% of the shares (58.8M), as of June 30, 2026. Among the top 20 institutions, 5 added shares and 14 reduced their stake in the latest filings. Short interest is 5.59% of the float, or 3.59 days of average trading volume. The share count fell 11.0% since 2014.
Related: WRB analyst forecast, WRB key metrics, WRB dividend history. See the WRB stock overview for the latest quote and news.
WRB ownership FAQ
Who owns the most W. R. Berkley stock?
The largest shareholders of W. R. Berkley are Mitsui Sumitomo Insurance Co Ltd (15.83%), BlackRock Inc (5.91%), Vanguard Capital Management, LLC (5.03%), Vanguard Portfolio Management, LLC (3.92%), State Street Corp (3.81%).
What percentage of W. R. Berkley is owned by institutions?
Institutions hold 76.2% of W. R. Berkley's shares outstanding; insiders hold 26.36%.
Which funds own W. R. Berkley?
The largest fund holders of W. R. Berkley are Vanguard MStar Total Stk Mkt Idx Invest (2.39%), Vanguard 500 Index Investor (1.60%), Vanguard MStar Mid Cap Index Instl (1.18%), Fidelity 500 Index (1.03%), Eaton Vance Atlanta Capital SMID-Cap I (0.91%).
What is W. R. Berkley's short interest?
13.1M shares of W. R. Berkley were sold short, 5.59% of the float; at the average daily volume it would take 3.59 days to cover.
Are insiders buying or selling W. R. Berkley?
Of the latest 20 reported insider transactions in W. R. Berkley (since February 2, 2026), 19 were purchases and 1 were sales.
How many shares of W. R. Berkley are outstanding?
W. R. Berkley has 371.2M shares outstanding, of which 243.7M are in the public float.