Custom Index Systems, LLC

SEC CIK: 0002003672
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

WRB holding history

Berkley W R Corp in every 13F filed by Custom Index Systems, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

WRB overview All 13F holders of WRB Full Q2 2026 holdings

Shares (Q1 2025): 0; Sold out in Q1 2025
Value: $0
% of portfolio: 0.0%
Quarters held: 3; Since Q2 2024

Holdings of WRB by Custom Index Systems, LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q1 2025	0	$0	0.0%	−13,001−100.0%	Sold out	Holders
Q4 2024	13,001	$760.8K	0.4%	+426+3.4%	Added	Holders
Q3 2024	12,575	$713.4K	0.4%	+7,029+126.7%	Added	Holders
Q2 2024	5,546	$435.8K	0.3%	+5,546	New	Holders