Stocks · Financials · Fire, Marine & Casualty Insurance

W. R. Berkley Corporation

WRB Clue Score64
United States Fiscal year ends December CIK 0000011544 Results filed 19 Oct 2026

What the insiders did Net buying

Insider
Date
Role
Action
Shares
Price
Amount
Mitsui Sumitomo Insurance Co Ltd
3 Mar 2026
10% owner
Buy
73,185
$72.52
$5.31M
Mitsui Sumitomo Insurance Co Ltd
3 Mar 2026
10% owner
Buy
38,991
$71.60
$2.79M
Mitsui Sumitomo Insurance Co Ltd
2 Mar 2026
10% owner
Buy
100,897
$73.20
$7.39M
Mitsui Sumitomo Insurance Co Ltd
2 Mar 2026
10% owner
Buy
45,103
$72.29
$3.26M
Mitsui Sumitomo Insurance Co Ltd
27 Feb 2026
10% owner
Buy
147,000
$71.63
$10.53M
Mitsui Sumitomo Insurance Co Ltd
26 Feb 2026
10% owner
Buy
7,509
$72.11
$541.50K
Mitsui Sumitomo Insurance Co Ltd
26 Feb 2026
10% owner
Buy
145,491
$71.65
$10.42M
Mitsui Sumitomo Insurance Co Ltd
25 Feb 2026
10% owner
Buy
14,356
$71.77
$1.03M
Mitsui Sumitomo Insurance Co Ltd
25 Feb 2026
10% owner
Buy
154,512
$71.39
$11.03M
Mitsui Sumitomo Insurance Co Ltd
24 Feb 2026
10% owner
Buy
61,594
$71.28
$4.39M
Mitsui Sumitomo Insurance Co Ltd
24 Feb 2026
10% owner
Buy
103,192
$70.52
$7.28M
Mitsui Sumitomo Insurance Co Ltd
23 Feb 2026
10% owner
Buy
16,410
$71.80
$1.18M
Mitsui Sumitomo Insurance Co Ltd
23 Feb 2026
10% owner
Buy
203,590
$71.09
$14.47M
Mitsui Sumitomo Insurance Co Ltd
20 Feb 2026
10% owner
Buy
160,582
$70.80
$11.37M
Mitsui Sumitomo Insurance Co Ltd
19 Feb 2026
10% owner
Buy
44,014
$71.50
$3.15M
Mitsui Sumitomo Insurance Co Ltd
19 Feb 2026
10% owner
Buy
300,986
$70.53
$21.23M
Mitsui Sumitomo Insurance Co Ltd
18 Feb 2026
10% owner
Buy
45,250
$70.96
$3.21M
Mitsui Sumitomo Insurance Co Ltd
18 Feb 2026
10% owner
Buy
239,750
$70.58
$16.92M
Mitsui Sumitomo Insurance Co Ltd
17 Feb 2026
10% owner
Buy
281,386
$71.19
$20.03M
Mitsui Sumitomo Insurance Co Ltd
13 Feb 2026
10% owner
Buy
280
$71.18
$19.93K
Mitsui Sumitomo Insurance Co Ltd
13 Feb 2026
10% owner
Buy
4,314
$70.30
$303.26K
Mitsui Sumitomo Insurance Co Ltd
13 Feb 2026
10% owner
Buy
15,406
$69.73
$1.07M
Mitsui Sumitomo Insurance Co Ltd
12 Feb 2026
10% owner
Buy
2,401
$72.76
$174.69K
Mitsui Sumitomo Insurance Co Ltd
12 Feb 2026
10% owner
Buy
17,599
$71.88
$1.27M
Mitsui Sumitomo Insurance Co Ltd
11 Feb 2026
10% owner
Buy
11,163
$71.45
$797.59K
Mitsui Sumitomo Insurance Co Ltd
11 Feb 2026
10% owner
Buy
3,578
$70.50
$252.27K
Mitsui Sumitomo Insurance Co Ltd
11 Feb 2026
10% owner
Buy
9,289
$69.59
$646.40K
Mitsui Sumitomo Insurance Co Ltd
10 Feb 2026
10% owner
Buy
12,082
$69.92
$844.79K
Mitsui Sumitomo Insurance Co Ltd
10 Feb 2026
10% owner
Buy
21,884
$69.09
$1.51M
Mitsui Sumitomo Insurance Co Ltd
9 Feb 2026
10% owner
Buy
4,048
$70.32
$284.65K
Mitsui Sumitomo Insurance Co Ltd
9 Feb 2026
10% owner
Buy
35,952
$69.27
$2.49M
Mitsui Sumitomo Insurance Co Ltd
6 Feb 2026
10% owner
Buy
4,306
$71.39
$307.41K
Mitsui Sumitomo Insurance Co Ltd
6 Feb 2026
10% owner
Buy
15,694
$70.46
$1.11M
Mitsui Sumitomo Insurance Co Ltd
5 Feb 2026
10% owner
Buy
13,472
$71.25
$959.92K
Mitsui Sumitomo Insurance Co Ltd
5 Feb 2026
10% owner
Buy
6,528
$70.79
$462.11K
Mitsui Sumitomo Insurance Co Ltd
4 Feb 2026
10% owner
Buy
22,415
$70.25
$1.57M
Mitsui Sumitomo Insurance Co Ltd
4 Feb 2026
10% owner
Buy
2,585
$69.77
$180.34K
Mitsui Sumitomo Insurance Co Ltd
3 Feb 2026
10% owner
Buy
31,653
$68.87
$2.18M
Mitsui Sumitomo Insurance Co Ltd
3 Feb 2026
10% owner
Buy
8,347
$67.75
$565.50K
Mitsui Sumitomo Insurance Co Ltd
2 Feb 2026
10% owner
Buy
13,159
$68.42
$900.30K
Mitsui Sumitomo Insurance Co Ltd
2 Feb 2026
10% owner
Buy
237,062
$67.71
$16.05M
Mitsui Sumitomo Insurance Co Ltd
30 Jan 2026
10% owner
Buy
195,000
$68.36
$13.33M
Mitsui Sumitomo Insurance Co Ltd
29 Jan 2026
10% owner
Buy
27,718
$68.56
$1.90M
Mitsui Sumitomo Insurance Co Ltd
29 Jan 2026
10% owner
Buy
262,282
$68.08
$17.86M
Mitsui Sumitomo Insurance Co Ltd
28 Jan 2026
10% owner
Buy
28,577
$67.89
$1.94M
Mitsui Sumitomo Insurance Co Ltd
28 Jan 2026
10% owner
Buy
280,354
$67.58
$18.95M
Mitsui Sumitomo Insurance Co Ltd
27 Jan 2026
10% owner
Buy
2,671
$69.04
$184.39K
Mitsui Sumitomo Insurance Co Ltd
27 Jan 2026
10% owner
Buy
8,582
$68.56
$588.39K
Mitsui Sumitomo Insurance Co Ltd
27 Jan 2026
10% owner
Buy
325,960
$67.40
$21.97M
Mitsui Sumitomo Insurance Co Ltd
27 Jan 2026
10% owner
Buy
11,987
$66.87
$801.52K
Mitsui Sumitomo Insurance Co Ltd
27 Jan 2026
10% owner
Buy
800
$65.86
$52.69K
Mitsui Sumitomo Insurance Co Ltd
26 Jan 2026
10% owner
Buy
76,389
$67.88
$5.19M
Mitsui Sumitomo Insurance Co Ltd
26 Jan 2026
10% owner
Buy
293,611
$66.86
$19.63M
Mitsui Sumitomo Insurance Co Ltd
23 Jan 2026
10% owner
Buy
166,919
$67.18
$11.21M
Mitsui Sumitomo Insurance Co Ltd
23 Jan 2026
10% owner
Buy
201,081
$66.77
$13.43M
Mitsui Sumitomo Insurance Co Ltd
22 Jan 2026
10% owner
Buy
330,000
$67.45
$22.26M
Mitsui Sumitomo Insurance Co Ltd
21 Jan 2026
10% owner
Buy
260,998
$67.60
$17.64M
Mitsui Sumitomo Insurance Co Ltd
21 Jan 2026
10% owner
Buy
59,002
$66.95
$3.95M
Mitsui Sumitomo Insurance Co Ltd
20 Jan 2026
10% owner
Buy
44,994
$68.08
$3.06M
Mitsui Sumitomo Insurance Co Ltd
20 Jan 2026
10% owner
Buy
265,006
$67.75
$17.95M
Mitsui Sumitomo Insurance Co Ltd
16 Jan 2026
10% owner
Buy
58,691
$68.79
$4.04M
Mitsui Sumitomo Insurance Co Ltd
16 Jan 2026
10% owner
Buy
241,309
$68.03
$16.42M
Mitsui Sumitomo Insurance Co Ltd
15 Jan 2026
10% owner
Buy
68,093
$69.45
$4.73M
Mitsui Sumitomo Insurance Co Ltd
15 Jan 2026
10% owner
Buy
166,907
$68.68
$11.46M
Mitsui Sumitomo Insurance Co Ltd
14 Jan 2026
10% owner
Buy
208,272
$69.23
$14.42M
Mitsui Sumitomo Insurance Co Ltd
14 Jan 2026
10% owner
Buy
21,728
$68.80
$1.49M
Mitsui Sumitomo Insurance Co Ltd
13 Jan 2026
10% owner
Buy
206,499
$68.15
$14.07M
Mitsui Sumitomo Insurance Co Ltd
13 Jan 2026
10% owner
Buy
118,501
$67.82
$8.04M
Mitsui Sumitomo Insurance Co Ltd
12 Jan 2026
10% owner
Buy
256,041
$68.73
$17.60M
Mitsui Sumitomo Insurance Co Ltd
9 Jan 2026
10% owner
Buy
8,150
$70.12
$571.45K
Mitsui Sumitomo Insurance Co Ltd
9 Jan 2026
10% owner
Buy
105,674
$69.56
$7.35M
Mitsui Sumitomo Insurance Co Ltd
9 Jan 2026
10% owner
Buy
161,176
$68.48
$11.04M
Mitsui Sumitomo Insurance Co Ltd
8 Jan 2026
10% owner
Buy
151,511
$70.32
$10.65M
Mitsui Sumitomo Insurance Co Ltd
8 Jan 2026
10% owner
Buy
39,302
$69.69
$2.74M
Mitsui Sumitomo Insurance Co Ltd
8 Jan 2026
10% owner
Buy
4,187
$68.79
$288.03K
Mitsui Sumitomo Insurance Co Ltd
7 Jan 2026
10% owner
Buy
10,378
$69.20
$718.20K
Mitsui Sumitomo Insurance Co Ltd
7 Jan 2026
10% owner
Buy
254,622
$68.47
$17.43M
Mitsui Sumitomo Insurance Co Ltd
6 Jan 2026
10% owner
Buy
92,357
$70.21
$6.48M
Mitsui Sumitomo Insurance Co Ltd
6 Jan 2026
10% owner
Buy
122,931
$69.93
$8.60M
Mitsui Sumitomo Insurance Co Ltd
5 Jan 2026
10% owner
Buy
153,686
$70.78
$10.88M
Mitsui Sumitomo Insurance Co Ltd
5 Jan 2026
10% owner
Buy
35,894
$70.23
$2.52M
Mitsui Sumitomo Insurance Co Ltd
5 Jan 2026
10% owner
Buy
11,350
$69.20
$785.42K
Mitsui Sumitomo Insurance Co Ltd
2 Jan 2026
10% owner
Buy
237,734
$69.35
$16.49M
Mitsui Sumitomo Insurance Co Ltd
31 Dec 2025
10% owner
Buy
230,000
$70.27
$16.16M
Mitsui Sumitomo Insurance Co Ltd
30 Dec 2025
10% owner
Buy
205,000
$70.83
$14.52M
Mitsui Sumitomo Insurance Co Ltd
29 Dec 2025
10% owner
Buy
205,000
$70.77
$14.51M
Mitsui Sumitomo Insurance Co Ltd
26 Dec 2025
10% owner
Buy
220,000
$70.56
$15.52M
Mitsui Sumitomo Insurance Co Ltd
24 Dec 2025
10% owner
Buy
220,000
$70.51
$15.51M
Mitsui Sumitomo Insurance Co Ltd
23 Dec 2025
10% owner
Buy
2,027
$71.15
$144.23K
Mitsui Sumitomo Insurance Co Ltd
23 Dec 2025
10% owner
Buy
232,546
$70.31
$16.35M
Mitsui Sumitomo Insurance Co Ltd
22 Dec 2025
10% owner
Buy
162,060
$70.33
$11.40M
Mitsui Sumitomo Insurance Co Ltd
22 Dec 2025
10% owner
Buy
39,940
$69.97
$2.79M
Mitsui Sumitomo Insurance Co Ltd
19 Dec 2025
10% owner
Buy
204,000
$69.50
$14.18M
Mitsui Sumitomo Insurance Co Ltd
18 Dec 2025
10% owner
Buy
204,350
$69.38
$14.18M

What was left out

Form 4 filings counted 35
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 20
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 179,032
History held since 9 Nov 2006