Altar Rock LLC

SEC CIK: 0002156071
Latest filing: Sep 21, 2026

SEC filings (opens in a new tab)

BRK.B holding history

Berkshire Hathaway Inc in every 13F filed by Altar Rock LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

BRK.B overview All 13F holders of BRK.B Full Q2 2026 holdings

Shares (Q2 2026): 778
Value: $389.3K
% of portfolio: 0.6%
Quarters held: 3; Since Q4 2025

Holdings of BRK.B by Altar Rock LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	778	$389.3K	0.6%	−370−32.2%	Reduced	Holders
Q1 2026	1,148	$550.1K	0.6%	+1+0.1%	Added	Holders
Q4 2025	1,147	$576.5K	0.7%	–	No prior filing	Holders