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Equibles

JANE STREET GROUP, LLC

Position in WRB — Berkley W R Corp

CIK 1595888 NEW YORK, NY
Back to WRB Full portfolio

Position in WRB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$61,763,402
-$5,453,464 QoQ
Shares Held
875,704
-13.7% QoQ
Ownership
0.236%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#49
of 950 holders
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in WRB Over Time

Shares Held

Position Value (USD)

Derivatives in WRB

reported options exposure · as of Jun 30, 2026
CallValue
$4,260,012
CallShares
60,400
PutValue
$557,187
PutShares
7,900

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Insurance - Property & Casualty

Financial Services · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $541,442,175 across 27 Insurance - Property & Casualty names. WRB ranks #3 (11.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TRV
Travelers Companies, Inc.
 449,823 $148,495,568
2 MKL
Markel Group Inc.
 65,269 $127,471,009
3 WRB
Berkley W R Corp
This page 		875,704 $61,763,402
4 LMND
Lemonade, Inc.
 565,854 $36,808,802
5 WTM
White Mountains Insurance Group Ltd
 17,226 $35,716,213
6 SLDE
Slide Insurance Holdings, Inc.
 1,392,301 $26,968,870
7 AIZ
Assurant, Inc.
 89,564 $24,050,620
8 HCI
HCI Group, Inc.
 79,576 $13,945,693

All Filings in WRB

Export CSV
41 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,260,012 60,400
2026-06-30 $61,763,402 875,704
2026-06-30 $557,187 7,900
2026-03-31 $1,033,968 15,600
2026-03-31 $67,216,866 1,014,135
2026-03-31 $5,302,400 80,000
2025-12-31 $841,440 12,000
2025-12-31 $1,195,335 17,047
2025-12-31 $1,647,820 23,500
2025-09-30 $7,133,322 93,100
2025-09-30 $1,221,399 15,941
2025-06-30 $528,984 7,200
2025-03-31 $512,352 7,200
2025-03-31 $311,111 4,372
2024-12-31 $14,036,489 239,858
2024-12-31 $386,232 6,600
2024-09-30 $2,947,123 51,950
2024-09-30 $20,340,824 358,555
2024-06-30 $8,555,874 108,881
2024-03-31 $4,769,480 53,929
2023-12-31 $4,230,048 59,814
2023-09-30 $5,797,910 91,320
2023-06-30 $3,498,795 58,744
2023-03-31 $4,431,794 71,182
2022-09-30 $768,888 11,906
2022-06-30 $2,601,594 38,113
2022-03-31 $1,266,341 19,017
2022-03-31 $1,045,462 15,700
2021-12-31 $996,919 12,100
2021-12-31 $1,053,603 12,788
2021-09-30 $594,733 8,127
2021-06-30 $1,619,001 21,752
2021-06-30 $1,071,792 14,400
2021-03-31 $1,042,692 13,838
2021-03-31 $369,215 4,900
2020-12-31 $849,843 12,795
2020-12-31 $604,422 9,100
2020-09-30 $305,321 4,993
2020-06-30 $338,010 5,900
2020-06-30 $4,021,754 70,200
2020-03-31 $2,661,717 51,020

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