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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 $414,717,008 across 15 holdings for the quarter ended 2024-12-31, in a 13F-HR filed 2025-02-14. Its ten largest share positions make up 97.4% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001349353-25-000002

Period
2024-12-31
Reported value
$415M
Holdings
15
Top 10 weight
97.4%
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+83,924$15.9M
UBERadded+76,288$4.6M
TSLAnew+10,021$4.05M
ROCKET LAB USA INCnew+122,640$3.12M
BRK-Badded+6,454$2.93M

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
MSFTreduced-73,547-$31M
LLYexited-4,840-$4.29M
AMZNreduced-17,175-$3.77M
METAreduced-4,302-$2.52M
TSMreduced-7,279-$1.44M

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, Q4 2024

Share positions as resolved from 13F-HR 0001349353-25-000002, largest first. % of portfolio is the value over $414,717,008, 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; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 311,115 shares; 2024Q4: 317,569 shares 317,569$144M34.71%+6,454Timeline
AMZNAMAZON COM INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 379,683 shares; 2024Q4: 362,508 shares 362,508$79.5M19.18%-17,175Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 193,661 shares; 2024Q4: 120,114 shares 120,114$50.6M12.21%-73,547Timeline
COSTCOSTCO WHOLESALE CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 37,528 shares; 2024Q4: 37,721 shares 37,721$34.6M8.33%+193Timeline
METAMETA PLATFORMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 45,439 shares; 2024Q4: 41,137 shares 41,137$24.1M5.81%-4,302Timeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 91,651 shares; 2024Q4: 92,201 shares 92,201$23.1M5.57%+550Timeline
TSMTAIWAN SEMICONDUCTOR MANUFACQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 88,867 shares; 2024Q4: 81,588 shares 81,588$16.1M3.89%-7,279Timeline
GOOGLALPHABET INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 83,924 shares 83,924$15.9M3.83%newTimeline
CBCHUBB LIMITEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 45,107 shares; 2024Q4: 40,246 shares 40,246$11.1M2.68%-4,861Timeline
UBERUBER TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,875 shares; 2024Q4: 82,163 shares 82,163$4.96M1.2%+76,288Timeline
TSLATESLA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 10,021 shares 10,021$4.05M0.98%newTimeline
ROCKET LAB USA INCROCKET LAB USA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 122,640 shares 122,640$3.12M0.75%new
ASMLASML HLDG NVQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 4,000 shares 4,000$2.77M0.67%newTimeline
BRK-ABERKSHIRE HATHAWAY INC DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1 shares; 2024Q4: 1 shares 1$681K0.16%0Timeline
MANUMANCHESTER UTD PLC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 10,000 shares 10,000$174K0.04%newTimeline

Sold out in Q4 2024

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

SecurityShares beforeValue beforeType
LLYELI LILLY & CO4,840$4.29Mshares

How Q4 2024 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 0001349353-25-000002 base2025-02-14acceptance time not in the bulk data set