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OSTERWEIS CAPITAL MANAGEMENT INC

Position in WRB — Berkley W R Corp

CIK 1007524 SAN FRANCISCO, CA

Position in WRB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$446,525
+$26,907 QoQ
Shares Held
6,331
0.0% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#559
of 951 holders
Holding Since
Sep 2020
21 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in WRB Over Time

Shares Held

Position Value (USD)

Position in Insurance - Property & Casualty

Financial Services · as of Jun 30, 2026

OSTERWEIS CAPITAL MANAGEMENT INC holds $31,508,584 across 2 Insurance - Property & Casualty names. WRB ranks #2 (1.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 WRB
Berkley W R Corp
This page
6,331 $446,525

All Filings in WRB

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $446,525 6,331
2026-03-31 $419,618 6,331
2025-12-31 $443,929 6,331
2025-09-30 $485,081 6,331
2025-06-30 $465,138 6,331
2025-03-31 $376,436 5,290
2024-12-31 $309,570 5,290
2024-09-30 $300,101 5,290
2024-06-30 $277,151 3,527
2024-03-31 $311,927 3,527
2023-12-31 $249,429 3,527
2023-09-30 $223,929 3,527
2023-06-30 $210,068 3,527
2023-03-31 $219,591 3,527
2022-12-31 $266,114 3,667
2022-09-30 $236,814 3,667
2022-06-30 $250,309 3,667
2022-03-31 $244,251 3,668
2021-12-31 $201,443 2,445
2020-12-31 $224,366 3,378
2020-09-30 $206,564 3,378