BERKSHIRE HATHAWAY INC-CL A - Security Detail

Period	Total Value	Value Change	Total Holders	Holder Change
2024-06-30	$59.50B	-	1,014	-
2024-09-30	$61.56B	+3.5%	1,020	+0.6%
2024-12-31	$64.74B	+5.2%	806	-21.0%

Institution	Value	Shares	% of Portfolio
NORTHWESTERN UNIVERSITY	$53.8M	0K	86.2%
GRAHAM HOLDINGS CO MASTER RETIREMENT TRUST	$564.5M	0K	84.9%
PUNCH CARD MANAGEMENT L.P.	$237.6M	0K	75.4%
HIKARI TSUSHIN, INC.	$767.4M	1K	55.7%
REDE WEALTH, LLC	$143.0M	0K	54.8%
CANTON HATHAWAY, LLC	$192.0M	0K	48.0%
HIKARI POWER LTD	$533.2M	0K	46.1%
NORDWAND ADVISORS, LLC	$108.9M	0K	44.9%
CHOU ASSOCIATES MANAGEMENT INC.	$58.6M	0K	39.9%
GRAHAM HOLDINGS CO	$287.3M	0K	33.7%
PARALEL ADVISORS LLC	$700.0M	1K	29.9%
FIRST MANHATTAN CO. LLC.	$10083.7M	14K	29.6%
FIDUCIARY COUNSELLING INC	$10.2M	0K	27.4%
ALLEN HOLDING INC /NY	$245.1M	0K	26.9%
ELKHORN PARTNERS LIMITED PARTNERSHIP	$34.0M	0K	22.4%
I.G.Y. LTD	$51.1M	0K	21.3%
7G CAPITAL MANAGEMENT, LLC	$20.4M	0K	18.0%
HUTNER CAPITAL MANAGEMENT INC	$35.4M	0K	17.1%
BISLETT MANAGEMENT, LLC	$23.8M	0K	16.9%
WS MANAGEMENT LLLP	$175.0M	0K	16.2%
SEMPER AUGUSTUS INVESTMENTS GROUP LLC	$81.7M	0K	14.6%
POSTROCK PARTNERS LLC	$30.0M	0K	14.5%
GARDNER RUSSO & QUINN LLC	$1272.6M	1K	14.4%
GREENLEA LANE CAPITAL MANAGEMENT, LLC	$47.7M	0K	14.4%
SUMMIT STREET CAPITAL MANAGEMENT, LLC	$39.5M	0K	14.0%

Ticker	Exchange	Security	Similarity Score	Common Holders	Total Holders
SBGSY	US	SCHNEIDER ELECT SE-UNSP ADR	0.091	2	22
FLV	US	AMERICAN CENTURY FOCUSED LAR	0.080	2	25
NSRGY	US	NESTLE SA-SPONS ADR	0.067	7	104
FDG	US	AMERICAN CENTURY FOCUSED DYN	0.056	2	36
BRK/B	US	BERKSHIRE HATHAWAY INC-CL B	0.032	100	3146
AAPL	US	APPLE INC	0.027	106	3956
MSFT	US	MICROSOFT CORP	0.026	108	4177
GOOGL	US	ALPHABET INC-CL A	0.024	86	3527
GOOG	US	ALPHABET INC-CL C	0.024	77	3169
JPM	US	JPMORGAN CHASE & CO	0.022	71	3229
AMZN	US	AMAZON.COM INC	0.022	87	3975
BBN	US	BLACKROCK TAXABLE MUNI BND	0.020	2	100
JNJ	US	JOHNSON & JOHNSON	0.020	57	2911
NVDA	US	NVIDIA CORP	0.019	71	3653
VOO	US	VANGUARD S&P 500 ETF	0.018	42	2296
MKL	US	MARKEL GROUP INC	0.018	12	658
BUR	US	BURFORD CAPITAL LTD	0.018	3	165
EPS	US	WISDOMTREE US LARGE CAP FUND	0.018	2	110
V	US	VISA INC-CLASS A SHARES	0.018	55	3025
LB	US	LANDBRIDGE CO LLC-A	0.018	2	114
BN	US	BROOKFIELD CORP	0.017	11	637
SPXL	US	DIREXION DLY S&P 500 BULL 3X	0.017	2	117
DSTL	US	DISTILLATE US FUNDAMENTAL ST	0.017	2	117
COST	US	COSTCO WHOLESALE CORP	0.016	45	2728
AXP	US	AMERICAN EXPRESS CO	0.016	30	1902