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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•43 filings

WRB

BERKLEY W R CORP

No net buying or selling imbalance over the last 3 months

No net buyers or sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

$0.00

0 buyers · 0 sellers

12-month purchases

$705,457,909

2 distinct insiders

12-month sales

$0.00

0 distinct insiders

Highlighted alerts

0

94 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

100
Raw transactions
Everything returned by the filing
94
Voluntary view
P/S trades after deterministic checks
18
Administrative noise
Stored, never alerted
82
10b5-1
Shown as informational
SEC ownership XML facts
Code
F
Shares
592
Price
$72.29
Footnotes
3

Represents the vesting of tranches of performance-based restricted stock units ("RSUs") granted in 2021, 2022 and 2023 under the W. R. Berkley Corporation 2018 Stock Incentive Plan for the three-year performance period ending June 30, 2026 (consisting of 5,550 shares; 4,181 shares; and 4,355 shares, respectively). Represents payment of tax liability by withholding securities incident to the vesting of RSUs. Includes 139,750 shares of common stock underlying RSUs, all of which have vested (the receipt of which has been deferred) and does not include unvested shares of common stock underlying performance-based RSUs.

Raspberry interpretation
Informational — no alert

Reason: administrative_code.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

94 transactions

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
73,185
Price
$72.52
Value
$5,307,654
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
38,991
Price
$71.60
Value
$2,791,604
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
100,897
Price
$73.20
Value
$7,385,459
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
45,103
Price
$72.29
Value
$3,260,288
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
147,000
Price
$71.63
Value
$10,528,963
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
7,509
Price
$72.11
Value
$541,504
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
145,491
Price
$71.65
Value
$10,423,848
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
14,356
Price
$71.77
Value
$1,030,336
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
154,512
Price
$71.39
Value
$11,030,874
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
61,594
Price
$71.28
Value
$4,390,642
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
103,192
Price
$70.52
Value
$7,277,430
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
16,410
Price
$71.80
Value
$1,178,305
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
203,590
Price
$71.09
Value
$14,473,844
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
160,582
Price
$70.80
Value
$11,369,944
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
44,014
Price
$71.50
Value
$3,146,785
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
300,986
Price
$70.53
Value
$21,227,730
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
45,250
Price
$70.96
Value
$3,210,908
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
239,750
Price
$70.58
Value
$16,922,730
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
281,386
Price
$71.19
Value
$20,032,854
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
280
Price
$71.18
Value
$19,932
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
4,314
Price
$70.30
Value
$303,264
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
15,406
Price
$69.73
Value
$1,074,336
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
2,401
Price
$72.76
Value
$174,690
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
17,599
Price
$71.88
Value
$1,265,030
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
11,163
Price
$71.45
Value
$797,589
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
3,578
Price
$70.50
Value
$252,266
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
9,289
Price
$69.59
Value
$646,400
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
12,082
Price
$69.92
Value
$844,787
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
21,884
Price
$69.09
Value
$1,511,904
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
4,048
Price
$70.32
Value
$284,653
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
35,952
Price
$69.27
Value
$2,490,553
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
4,306
Price
$71.39
Value
$307,412
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
15,694
Price
$70.46
Value
$1,105,812
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
13,472
Price
$71.25
Value
$959,918
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
6,528
Price
$70.79
Value
$462,110
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
22,415
Price
$70.25
Value
$1,574,717
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
2,585
Price
$69.77
Value
$180,343
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
31,653
Price
$68.87
Value
$2,179,904
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
8,347
Price
$67.75
Value
$565,498
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
13,159
Price
$68.42
Value
$900,301
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
237,062
Price
$67.71
Value
$16,051,136
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
195,000
Price
$68.36
Value
$13,330,415
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
27,718
Price
$68.56
Value
$1,900,360
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
262,282
Price
$68.08
Value
$17,856,578
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
28,577
Price
$67.89
Value
$1,940,193
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
280,354
Price
$67.58
Value
$18,945,090
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
2,671
Price
$69.04
Value
$184,393
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
8,582
Price
$68.56
Value
$588,391
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
325,960
Price
$67.40
Value
$21,970,877
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
11,987
Price
$66.87
Value
$801,520
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
800
Price
$65.86
Value
$52,689
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
76,389
Price
$67.88
Value
$5,185,056
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
293,611
Price
$66.86
Value
$19,629,481
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
166,919
Price
$67.18
Value
$11,213,669
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
201,081
Price
$66.77
Value
$13,426,158
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
330,000
Price
$67.45
Value
$22,258,665
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
260,998
Price
$67.60
Value
$17,644,300
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
59,002
Price
$66.95
Value
$3,950,337
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
44,994
Price
$68.08
Value
$3,063,066
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
265,006
Price
$67.75
Value
$17,954,316
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
58,691
Price
$68.79
Value
$4,037,102
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
241,309
Price
$68.03
Value
$16,416,493
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
68,093
Price
$69.45
Value
$4,728,868
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
166,907
Price
$68.68
Value
$11,462,338
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
208,272
Price
$69.23
Value
$14,419,358
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
21,728
Price
$68.80
Value
$1,494,928
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
206,499
Price
$68.15
Value
$14,072,473
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
118,501
Price
$67.82
Value
$8,037,224
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
256,041
Price
$68.73
Value
$17,598,825
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
8,150
Price
$70.12
Value
$571,447
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
105,674
Price
$69.56
Value
$7,351,191
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
161,176
Price
$68.48
Value
$11,037,590
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
151,511
Price
$70.32
Value
$10,653,663
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
39,302
Price
$69.69
Value
$2,738,964
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
4,187
Price
$68.79
Value
$288,029
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
10,378
Price
$69.20
Value
$718,202
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
254,622
Price
$68.47
Value
$17,433,383
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
92,357
Price
$70.21
Value
$6,484,524
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
122,931
Price
$69.93
Value
$8,596,294
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
153,686
Price
$70.78
Value
$10,877,511
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
35,894
Price
$70.23
Value
$2,520,918
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
11,350
Price
$69.20
Value
$785,415
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
237,734
Price
$69.35
Value
$16,486,306
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
230,000
Price
$70.27
Value
$16,160,996
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
205,000
Price
$70.83
Value
$14,519,822
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
205,000
Price
$70.77
Value
$14,508,383
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
220,000
Price
$70.56
Value
$15,522,760
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
220,000
Price
$70.51
Value
$15,512,046
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
2,027
Price
$71.15
Value
$144,228
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
232,546
Price
$70.31
Value
$16,350,449
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
162,060
Price
$70.33
Value
$11,396,983
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
39,940
Price
$69.97
Value
$2,794,666
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
204,000
Price
$69.50
Value
$14,178,612
Open SEC filing

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Purchase 10b5-1
Shares
204,350
Price
$69.38
Value
$14,178,110
Open SEC filing