13F Insight
DOSSIER · 13F-HR · Q2 2026

BERKLEY W R CORP

$2.2B in tracked AUM across 344 positions as of Q2 2026.

BW
CIK 0000011544 · last filed Jun 30, 2026
Total AUM
$2.2B
as of Q2 2026
Holdings
344
—
positions
Whale Score
84
84
strong
Activity
—
no data
changes this Q
AI Analysis · Q2 2026
Comprehensive Analysis of BERKLEY W R CORP SEC 13F Filing
Portfolio Overview

The filing for BERKLEY W R CORP (CIK: 0000011544) reveals a substantial contraction in portfolio value and a distinct shift in investment strategy for the quarter ending September 30, 2025. The total portfolio value decreased by 36.2%, dropping from $1.91 billion to $1.22 billion. This reduction is not solely attributable to market performance but is largely driven by significant capital reallocation, evidenced by...

Key Holdings

The portfolio's top ten holdings reflect a barbell strategy, balancing established income-generating giants with high-beta technology and speculative acquisition vehicles.

  • Energy Transfer LP (ET) and Kinder Morgan Inc (KMI) are the dominant core positions, representing 10.23% and 6.61% of the portfolio, respectively. These holdings indicate a strong preference for cash flow and yield within the energy infrastructure space.
  • Tesla Inc (TSLA) is the second-largest holding at 7.27%, representing a significant new bet on the consumer cyclical sector.
  • Visteon Corp (VC) holds a notable 3.95% weighting, providing exposure to automotive technology.
  • NVIDIA Corporation (NVDA), despite a 50% reduction during the quarter, remains a key technology holding at 3.05%.
  • Bank OZK represents the portfolio's primary exposure to the financial sector at 2.95%.
Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
EPD
ENTERPRISE PRODS PARTNERS L
$251M6.8M11.5%02
ET
ENERGY TRANSFER L P
$158M8.3M7.2%03
MSFT
MICROSOFT CORP
$111M299K5.1%04
KMI
KINDER MORGAN INC DEL
$91M2.8M4.2%05
PAA
PLAINS ALL AMERN PIPELINE L
$71M3.2M3.3%06
ON
ON SEMICONDUCTOR CORP
$69M731K3.2%07
WES
WESTERN MIDSTREAM PARTNERS
$55M1.3M2.5%08
NVDA
NVIDIA CORPORATION
$50M250K2.3%09
TSM
TAIWAN SEMICONDUCTOR MANUFAC
$47M99K2.2%10
PGR
PROGRESSIVE CORP
$45M208K2.1%

Filing history

2026Q2Jun 30
$2.2B▲ 16.9%
344 positionsView →2026Q1Mar 31
$1.9B▼ 12.4%
345 positionsView →2025Q4Dec 31
$2.1B▲ 74.8%
285 positionsView →2025Q3Sep 30
$1.2B▼ 36.2%
226 positionsView →2025Q2Jun 30
$1.9B▲ 60.0%
227 positionsLocked2025Q1Mar 31
$1.2B▼ 52.7%
135 positionsLocked2024Q4Dec 31
$2.5B▲ 42.6%
154 positionsLocked2024Q3Sep 30
$1.8B▼ 25.7%
153 positionsLocked2024Q2Jun 30
$2.4B▲ 31.7%
153 positionsLocked2024Q1Mar 31
$1.8B▲ 30.3%
155 positionsLocked2023Q4Dec 31
$1.4B▼ 10.0%
195 positionsLocked2023Q3Sep 30
$1.5B▼ 7.4%
213 positionsLocked
Showing 12 of 48