United American Securities Inc. (d/b/a UAS Asset Management) Quant / Systematic

CIK: 0001349353 · Show all filings

Period: Q3 2025 (← Previous) (Next →)

Filing Date: Nov 12, 2025

Total Value ($000): $472,574 (100.0% shares, 0.0% debt)

Holdings (14)

BRK/B BERKSHIRE HATHAWAY INC DEL 33.6%

Value ($000) $158,569 Shares 315,410 Est. Cost $204.12 Unrealized +137.3%

AMZN AMAZON COM INC 14.4%

Value ($000) $68,211 Shares 310,659 Est. Cost $143.54 Unrealized +57.7%

MSFT MICROSOFT CORP 13.3%

Value ($000) $62,977 Shares 121,588 Est. Cost $183.08 Unrealized +177.9%

GOOGL ALPHABET INC 8.2%

Value ($000) $38,559 Shares 158,614 Est. Cost $188.01 Unrealized +11.3%

COST COSTCO WHOLESALE CORP NEW 7.5%

Value ($000) $35,547 Shares 38,403 Est. Cost $564.11 Unrealized +69.6%

META META PLATFORMS INC 7.2%

Value ($000) $33,976 Shares 46,265 Est. Cost $491.35 Unrealized +51.3%

UBER UBER TECHNOLOGIES INC 5.1%

Value ($000) $24,168 Shares 246,692 Est. Cost $74.81 Unrealized +25.0%

NVDA NVIDIA CORP 3.5%

Value ($000) $16,368 Shares 87,725 Est. Cost $166.16 Unrealized +4.9%

AAPL APPLE INC 3.3%

Value ($000) $15,579 Shares 61,181 Est. Cost $132.62 Unrealized +70.1%

TSM TAIWAN SEMICONDUCTOR MFG LTD 1.8%

Value ($000) $8,578 Shares 30,714 Est. Cost $279.29 Unrealized —

JNJ JOHNSON & JOHNSON 0.9%

Value ($000) $4,061 Shares 21,903 Est. Cost $150.84 Unrealized +12.4%

BABA ALIBABA GROUP HLDG LTD 0.8%

Value ($000) $3,575 Shares 20,000 Est. Cost $178.73 Unrealized —

PDD PDD HOLDINGS INC 0.3%

Value ($000) $1,652 Shares 12,500 Est. Cost $132.17 Unrealized —

BRK/A BERKSHIRE HATHAWAY INC DEL 0.2%

Value ($000) $754 Shares 1 Est. Cost $165023.42 Unrealized +340.5%

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
BRK/B	BERKSHIRE HATHAWAY INC DEL	315,410	$158,569	33.6%	$204.12	+137.3%	CL B NEW	084670702
AMZN	AMAZON COM INC	310,659	$68,211	14.4%	$143.54	+57.7%	COM	023135106
MSFT	MICROSOFT CORP	121,588	$62,977	13.3%	$183.08	+177.9%	COM	594918104
GOOGL	ALPHABET INC	158,614	$38,559	8.2%	$188.01	+11.3%	CAP STK CL A	02079K305
COST	COSTCO WHOLESALE CORP NEW	38,403	$35,547	7.5%	$564.11	+69.6%	COM	22160K105
META	META PLATFORMS INC	46,265	$33,976	7.2%	$491.35	+51.3%	CL A	30303M102
UBER	UBER TECHNOLOGIES INC	246,692	$24,168	5.1%	$74.81	+25.0%	COM	90353T100
NVDA	NVIDIA CORP	87,725	$16,368	3.5%	$166.16	+4.9%	COM	67066G104
AAPL	APPLE INC	61,181	$15,579	3.3%	$132.62	+70.1%	COM	037833100
TSM	TAIWAN SEMICONDUCTOR MFG LTD	30,714	$8,578	1.8%	$279.29	—	SPONSORED ADS	874039100
JNJ	JOHNSON & JOHNSON	21,903	$4,061	0.9%	$150.84	+12.4%	COM	478160104
BABA	ALIBABA GROUP HLDG LTD	20,000	$3,575	0.8%	$178.73	—	SPONSORED ADS	01609W102
PDD	PDD HOLDINGS INC	12,500	$1,652	0.3%	$132.17	—	SPONSORED ADS	722304102
BRK/A	BERKSHIRE HATHAWAY INC DEL	1	$754	0.2%	$165023.42	+340.5%	CL A	084670108