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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 Mar 31, 2026 · filed May 15, 2026
Position Value
$419,618
-$24,311 QoQ
Shares Held
6,331
0.0% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2020
20 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in WRB Over Time

Shares Held

Position Value (USD)

Position in Insurance - Property & Casualty

Financial Services · as of Mar 31, 2026

OSTERWEIS CAPITAL MANAGEMENT INC holds $37,254,784 across 3 Insurance - Property & Casualty names. WRB ranks #3 (1.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 WRB
Berkley W R Corp
This page
6,331 $419,618

All Filings in WRB

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20 filing rows on record
Report Date Value (USD) Shares
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 $184,767 3,527
2024-03-31 $207,951 3,527
2023-12-31 $166,286 3,527
2023-09-30 $149,286 3,527
2023-06-30 $140,045 3,527
2023-03-31 $146,394 3,527
2022-12-31 $177,409 3,667
2022-09-30 $157,876 3,667
2022-06-30 $166,873 3,667
2022-03-31 $162,834 3,668
2021-12-31 $89,530 2,445
2020-12-31 $99,718 3,378
2020-09-30 $91,806 3,378