Cornerstone Advisors, LLC

SEC CIK: 0001775446
Latest filing: Aug 7, 2026

SEC filings (opens in a new tab)

BRK.B holding history

Berkshire Hathaway Inc in every 13F filed by Cornerstone Advisors, 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): 37,892
Value: $19.0M
% of portfolio: 0.6%
Quarters held: 22; Since Q1 2021

Holdings of BRK.B by Cornerstone Advisors, LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	37,892	$19.0M	0.6%	+10,942+40.6%	Added	Holders
Q1 2026	26,950	$12.9M	0.5%	−14,751−35.4%	Reduced	Holders
Q4 2025	41,701	$21.0M	0.7%	−47,099−53.0%	Reduced	Holders
Q3 2025	88,800	$44.6M	1.5%	00.0%	Unchanged	Holders
Q2 2025	88,800	$43.1M	1.5%	+6,300+7.6%	Added	Holders
Q1 2025	82,500	$43.9M	1.9%	00.0%	Unchanged	Holders
Q4 2024	82,500	$37.4M	1.5%	+1,800+2.2%	Added	Holders
Q3 2024	80,700	$37.1M	1.5%	+12,600+18.5%	Added	Holders
Q2 2024	68,100	$27.7M	1.1%	−3,300−4.6%	Reduced	Holders
Q1 2024	71,400	$30.0M	1.2%	−3,200−4.3%	Reduced	Holders
Q4 2023	74,600	$26.6M	1.2%	−16,000−17.7%	Reduced	Holders
Q3 2023	90,600	$31.7M	1.5%	−61,100−40.3%	Reduced	Holders
Q2 2023	151,700	$51.7M	2.5%	−55,300−26.7%	Reduced	Holders
Q1 2023	207,000	$63.9M	3.0%	+28,000+15.6%	Added	Holders
Q4 2022	179,000	$55.3M	2.7%	00.0%	Unchanged	Holders
Q3 2022	179,000	$47.8M	2.3%	00.0%	Unchanged	Holders
Q2 2022	179,000	$48.9M	2.6%	+15,000+9.1%	Added	Holders
Q1 2022	164,000	$57.9M	3.4%	00.0%	Unchanged	Holders
Q4 2021	164,000	$49.0M	2.7%	00.0%	Unchanged	Holders
Q3 2021	164,000	$44.8M	2.6%	00.0%	Unchanged	Holders
Q2 2021	164,000	$45.6M	2.7%	+125,000+320.5%	Added	Holders
Q1 2021	39,000	$9.96M	0.9%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.