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

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13F filer, CIK 1349353, NEW YORK, NY

United American Securities Inc. (d/b/a UAS Asset Management) reported $463,483,227 across 15 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-13. Its ten largest share positions make up 97.93% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001349353-25-000008

Period
2025-06-30
Reported value
$463M
Holdings
15
Top 10 weight
97.93%
New
5
Sold out
1

Part of the filer group United American Securities Inc. (d/b/a UAS Asset Management)

How groups are built

Largest buys vs the previous quarter

SecurityShares changeApprox. value
GOOGLnew+73,210$12.9M
UBERadded+105,386$9.83M
CMGnew+98,123$5.51M
AMZNadded+17,268$3.79M
JNJnew+21,985$3.36M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
TSMexited-83,802-$13.9M
CBreduced-23,035-$6.67M
COSTreduced-2,528-$2.5M
NVDAreduced-15,100-$2.39M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q2 2025

Share positions as resolved from 13F-HR 0001349353-25-000008, largest first. % of portfolio is the value over $463,483,227, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
BRK-BBERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 311,115 shares; 2024Q4: 317,569 shares; 2025Q1: 315,188 shares; 2025Q2: 319,643 shares 319,643$155M33.5%+4,455Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 379,683 shares; 2024Q4: 362,508 shares; 2025Q1: 407,455 shares; 2025Q2: 424,723 shares 424,723$93.2M20.1%+17,268Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 193,661 shares; 2024Q4: 120,114 shares; 2025Q1: 118,324 shares; 2025Q2: 123,970 shares 123,970$61.7M13.3%+5,646Timeline
COSTCOSTCO WHOLESALE CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 37,528 shares; 2024Q4: 37,721 shares; 2025Q1: 43,461 shares; 2025Q2: 40,933 shares 40,933$40.5M8.74%-2,528Timeline
METAMETA PLATFORMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 45,439 shares; 2024Q4: 41,137 shares; 2025Q1: 41,469 shares; 2025Q2: 44,652 shares 44,652$33M7.11%+3,183Timeline
UBERUBER TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,875 shares; 2024Q4: 82,163 shares; 2025Q1: 244,220 shares; 2025Q2: 349,606 shares 349,606$32.6M7.04%+105,386Timeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 83,924 shares; 2025Q1: not reported; 2025Q2: 73,210 shares 73,210$12.9M2.78%newTimeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 91,651 shares; 2024Q4: 92,201 shares; 2025Q1: 50,614 shares; 2025Q2: 61,329 shares 61,329$12.6M2.71%+10,715Timeline
CBCHUBB LIMITEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 45,107 shares; 2024Q4: 40,246 shares; 2025Q1: 46,031 shares; 2025Q2: 22,996 shares 22,996$6.66M1.44%-23,035Timeline
CMGCHIPOTLE MEXICAN GRILL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 98,123 shares 98,123$5.51M1.19%newTimeline
JNJJOHNSON & JOHNSONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 21,985 shares 21,985$3.36M0.72%newTimeline
ABNBAIRBNB INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 20,118 shares 20,118$2.66M0.57%newTimeline
NVDANVIDIA CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 30,100 shares; 2025Q2: 15,000 shares 15,000$2.37M0.51%-15,100Timeline
BRK-ABERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1 shares; 2024Q4: 1 shares; 2025Q1: 1 shares; 2025Q2: 1 shares 1$729K0.16%0Timeline
APHAMPHENOL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 5,000 shares 5,000$494K0.11%newTimeline

Sold out in Q2 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
TSMTAIWAN SEMICONDUCTOR MANUFAC83,802$13.9Mshares

How Q2 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001349353-25-000008 base2025-08-13acceptance time not in the bulk data set