Form 13-F position report

* BERKLEY W R CORP

Reported by MORGAN STANLEY

WRB CUSIP 084423102 Manager CIK 0000895421

Reported 8,252,790 shares, down 2,159,675 (20.7%) from the prior quarter.

Reported value -15.7%; share count -20.7% vs. the prior quarter.

Reduced
% of reported 13F value 0.03% This manager · Q2 2026
Shares 8,252,790 Quarter-end amount reported
Reported value $582,069,551 Fair value at quarter end
Consecutive quarters held 53 Through Q2 2026

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2021-09-30 27487000
2021-12-31 30505000
2022-03-31 34406000
2022-06-30 115531000
2022-09-30 133522000
2022-12-31 790947398
2023-03-31 736224550
2023-06-30 746609019
2023-09-30 829511214
2023-12-31 889765240
2024-03-31 1116757166
2024-06-30 1046636985
2024-09-30 1136247599
2024-12-31 1074734188
2025-03-31 1123781779
2025-06-30 972457544
2025-09-30 904466251
2025-12-31 687061127
2026-03-31 690138328
2026-06-30 582069551

Quarterly position history

How this manager's reported quarter-end position changed over time.

20 quarters
Quarterly reported position history for * BERKLEY W R CORP held by MORGAN STANLEY.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q2 2026 Reduced 8,252,790 -2,159,675 (-20.7%) 0.03% $582,069,551 2026-08-13
Q1 2026 Added 10,412,465 +614,107 (6.3%) 0.04% $690,138,328 2026-05-15
Q4 2025 Reduced 9,798,358 -2,006,209 (-17.0%) 0.04% $687,061,127 2026-02-13
Q3 2025 Reduced 11,804,567 -1,431,548 (-10.8%) 0.05% $904,466,251 2025-11-14
Q2 2025 Reduced 13,236,115 -2,556,206 (-16.2%) 0.06% $972,457,544 2025-08-15
Q1 2025 Reduced 15,792,321 -2,572,922 (-14.0%) 0.08% $1,123,781,779 2025-05-15
Q4 2024 Reduced 18,365,243 -1,663,796 (-8.3%) 0.08% $1,074,734,188 2025-02-14
Q3 2024 Added 20,029,039* +49,973 (0.3%) 0.08% $1,136,247,599 2024-11-14
Q2 2024 Added 13,319,377 +692,094 (5.5%) 0.08% $1,046,636,985 2024-08-14
Q1 2024 Added 12,627,283 +45,763 (0.4%) 0.09% $1,116,757,166 2024-05-15
Q4 2023 Reduced 12,581,520 -483,704 (-3.7%) 0.08% $889,765,240 2024-02-13
Q3 2023 Added 13,065,224 +529,817 (4.2%) 0.08% $829,511,214 2023-11-15
Q2 2023 Added 12,535,407 +710,409 (6.0%) 0.07% $746,609,019 2023-08-14
Q1 2023 Added 11,824,998 +925,905 (8.5%) 0.08% $736,224,550 2023-05-15
Q4 2022 Added 10,899,093 +8,831,553 (427.2%) 0.09% $790,947,398 2023-02-14
Q3 2022 Added 2,067,540 +375,028 (22.2%) 0.02% $133,522,000 2022-11-14
Q2 2022 Added 1,692,512 +1,175,801 (227.6%) 0.01% $115,531,000 2022-08-15
Q1 2022 Reduced 516,711* -38,658 (-7.0%) < 0.01% $34,406,000 2022-05-13
Q4 2021 Reduced 370,246 -5,382 (-1.4%) < 0.01% $30,505,000 2022-02-14
Q3 2021 Reduced 375,628 -81,471 (-17.8%) < 0.01% $27,487,000 2021-11-15
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

1047 managers reported * BERKLEY W R CORP for Q2 2026.

Managers reporting * BERKLEY W R CORP in Q2 2026.
Manager Activity Shares Change % of reported 13F Reported value Tenure
MITSUI SUMITOMO INSURANCE CO LTD Unchanged 58,780,450 0 100.0% $4,145,785,139 3 qtrs
BlackRock Inc Reduced 21,934,626 -1,345,982 0.02% $1,547,049,191 8 qtrs
VANGUARD CAPITAL MANAGEMENT LLC Reduced 18,690,969 -234,872 0.03% $1,318,274,044 2 qtrs
VANGUARD PORTFOLIO MANAGEMENT LLC Reduced 14,550,971 -199,262 0.05% $1,026,279,985 2 qtrs
STATE STREET CORPORATION Reduced 14,126,628 -278,782 0.03% $1,004,668,877 43 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 8,268,721 +39,067 0.03% $588,464,510 53 qtrs
MORGAN STANLEY This report Reduced 8,252,790 -2,159,675 0.03% $582,069,551 53 qtrs
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC Reduced 6,377,064 -1,395,149 1.4% $449,774,394 45 qtrs
Invesco Ltd Reduced 5,028,284 -23,481 0.03% $354,644,870 53 qtrs
The Goldman Sachs Group Inc Added 4,158,216 +1,306,932 0.03% $293,279,011 53 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
June 30, 2026
Filed
August 13, 2026
Filing type
13F-HR
Position type
COM

Voting authority reported

Sole
6,882,153
Shared
0
None
1,370,637

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.