Blair William & Co

SEC CIK: 0000902367
Latest filing: Aug 11, 2026

SEC filings (opens in a new tab)

Y holding history

Alleghany Corp in every 13F filed by Blair William & Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

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

Shares (Q3 2022): 0; Sold out in Q3 2022
Value: $0
% of portfolio: 0.0%
Quarters held: 3; Since Q4 2021

Holdings of Y by Blair William & Co, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q3 2022	0	$0	0.0%	−445−100.0%	Sold out	Holders
Q2 2022	445	$371.0K	<0.1%	+5+1.1%	Added	Holders
Q1 2022	440	$373.0K	<0.1%	−3−0.7%	Reduced	Holders
Q4 2021	443	$296.0K	<0.1%	+443	New	Holders