United American Securities Inc. (d/b/a UAS Asset Management) — 13F Holdings & Portfolio

CIK 1349353 · latest 13F-HR filed 2026-08-14

United American Securities Inc. (d/b/a UAS Asset Management) manages $464.1M in 13F-reported U.S. long-equity assets across 22 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are BRK.B (27.71%), AMZN (12.69%), GOOGL (9.86%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 3 new positions, exited 1, added to 4, and trimmed 4.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Filer Information
Address
655 THIRD AVENUE, SUITE 2906
NEW YORK, NY 10017
Phone
(212) 983-5822
Filing Manager
United American Securities Inc. (d/b/a UAS Asset Management)
NEW YORK, NY
Signatory
Cyrus Mossavar-Rahmani
CCO
Loading holdings…
AUM

$464.1M

Long-equity book

Holdings

22

Distinct positions

Period

2026-06-30

Filed 2026-08-14

Q/Q Activity

+3 / −1 / ↑4 / ↓4

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • TAIWAN SEMICONDUCTOR MANUFAC$32.4M +116.4%
  • NVIDIA CORPORATION$11.6M +124.4%
  • AMAZON COM INC$9.6M +13.7%
  • ALPHABET INC$8.8M +16.1%
Show all 4 →

Top Trims

  • MICROSOFT CORP-$37.2M -73.2%
  • META PLATFORMS INC-$28.1M -69.7%
  • COSTCO WHOLESALE CORPORATION-$3.9M -10.5%
  • APPLE INC-$1.2M -6.8%
Show all 4 →

New Positions

  • SPACE EXPLORATION TECHN CORP$9.2M
  • ELI LILLY & CO$5.0M
  • AIRBNB INC$572.4K
Show all 3 →

Exited Positions

  • JOHNSON & JOHNSON$3.1M
Show all 1 →
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $128.6M 27.71% 256,964 SH
2 AMAZON COM INC AMZN 023135106 $58.9M 12.69% 247,113 SH
3 ALPHABET INC GOOGL 02079K305 $45.8M 9.86% 128,077 SH
4 TAIWAN SEMICONDUCTOR MANUFAC TSM 874039100 $36.9M 7.95% 77,214 SH
5 COSTCO WHOLESALE CORPORATION COST 22160K105 $33.3M 7.17% 35,587 SH
6 TAIWAN SEMICONDUCTOR MANUFAC TSM 874039100 $23.4M 5.04% 49,000 SH
7 AMAZON COM INC AMZN 023135106 $20.3M 4.37% 85,000 SH
8 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $20.0M 4.31% 40,000 SH
9 ALPHABET INC GOOGL 02079K305 $17.9M 3.85% 50,000 SH
10 NVIDIA CORPORATION NVDA 67066G104 $17.9M 3.85% 89,240 SH
11 APPLE INC AAPL 037833100 $16.9M 3.65% 58,513 SH
12 MICROSOFT CORP MSFT 594918104 $8.0M 1.73% 21,466 SH
13 SPACE EXPLORATION TECHN CORP SPCX 84615Q103 $7.1M 1.52% 41,365 SH
14 META PLATFORMS INC META 30303M102 $6.5M 1.41% 11,609 SH
15 META PLATFORMS INC META 30303M102 $5.6M 1.21% 10,000 SH
16 MICROSOFT CORP MSFT 594918104 $5.6M 1.21% 15,000 SH
17 ELI LILLY & CO LLY 532457108 $4.8M 1.03% 4,000 SH
18 NVIDIA CORPORATION NVDA 67066G104 $3.0M 0.65% 15,000 SH
19 SPACE EXPLORATION TECHN CORP SPCX 84615Q103 $2.1M 0.46% 12,500 SH
20 BERKSHIRE HATHAWAY INC DEL BRK.A 084670108 $748.9K 0.16% 1 SH
21 AIRBNB INC ABNB 009066101 $572.4K 0.12% 4,000 SH
22 ELI LILLY & CO LLY 532457108 $239.9K 0.05% 200 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $464.1M 22 0000919574-26-005290
2026-03-31 2026-05-14 $458.3M 19 0000919574-26-003005
2025-12-31 2026-02-17 $474.2M 16 0001349353-26-000003
2025-09-30 2025-11-12 $472.6M 14 0001349353-25-000009