What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
CIK: 0001349353
Total reported value
$464.1M
$464.1M
16 檔
81.3%
At the close of Q4 2025, United American Securities Inc. disclosed equity holdings valued at approximately $464.1M, spread across 16 reported holdings.
In Q4 2025, United American Securities Inc. displayed an active expansion posture, initiating 4 new positions and adding to 6 existing holdings, outstripping position reductions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 32.85% | +0.05% | -1.75% | |
| 2 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 15.08% | +1.87% | -0.30% | |
| 3 | MSFT | Microsoft CORP | Stock-Tech | 12.42% | -8.15% | +0.14% | |
| 4 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 12.35% | +1.75% | +17.98% | |
| 5 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 6.84% | -0.95% | -2.03% | |
| 6 | NVDA | Nvidia CORP | Stock-Tech | 5.61% | +2.46% | +62.46% | |
| 7 | META | Meta Platforms Inc-class A | Stock-Comm Services | 3.92% | -6.16% | -39.12% | |
| 8 | AAPL | Apple Inc | Stock-Tech | 3.46% | -0.31% | -1.31% | |
| 9 | JNJ | Johnson & Johnson | Stock-Healthcare | 3.08% | -0.68% | EXIT | |
| 10 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 2.61% | +6.91% | +32.66% | |
| 11 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.61% | +1.09% | NEW | |
| 12 | FDS | Factset Research Systems Inc | Stock-Financials | 0.46% | — | — | |
| 13 | PDD | Pdd Holdings Inc | Stock-Consumer Disc | 0.36% | — | +20.00% | |
| 14 | BRK-A | Berkshire Hathaway Inc-cl A | Stock-Other | 0.16% | — | — | |
| 15 | TSLA | Tesla Inc | Stock-Consumer Disc | 0.09% | — | — | |
| 16 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.09% | — | — |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | GOOGL | Alphabet Inc-cl A | +4.2% | +17.98% | Add |
| 2 | JNJ | Johnson & Johnson | +2.2% | +222.56% | Add |
| 3 | NVDA | Nvidia CORP | +2.2% | +62.46% | Add |
| 4 | TSM | Taiwan Semiconductor-sp Adr | +0.8% | +32.66% | Add |
| 5 | AMZN | Amazon.com Inc | +0.7% | -0.30% | Trim |
| 6 | AAPL | Apple Inc | +0.2% | -1.31% | Trim |
| 7 | PDD | Pdd Holdings Inc | 0% | +20.00% | Add |
| 8 | BRK-A | Berkshire Hathaway Inc-cl A | — | — | Unchanged |
| 9 | COST | Costco Wholesale CORP | -0.7% | -2.03% | Trim |
| 10 | BRK-B | Berkshire Hathaway Inc-cl B | -0.7% | -1.75% | Trim |
| 11 | MSFT | Microsoft CORP | -0.9% | +0.14% | Add |
| 12 | META | Meta Platforms Inc-class A | -3.3% | -39.12% | Trim |
| 13 | UBER | Uber Technologies Inc | — | EXIT | Sold out |
| 14 | BABA | Alibaba Group Holding-sp Adr | — | EXIT | Sold out |
| 15 | LLY | Eli Lilly & Co | — | NEW | New buy |
| 16 | FDS | Factset Research Systems Inc | — | NEW | New buy |
| 17 | TSLA | Tesla Inc | — | NEW | New buy |
| 18 | JPM | Jpmorgan Chase & Co | — | NEW | New buy |
According to official SEC Form 13F filings, United American Securities Inc. reported a total U.S. public equity portfolio value of $464.1M across 16 disclosed positions in Q4 2025.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including BRK-B, AMZN, MSFT) accounted for 81.3% of total reported equity market value during Q4 2025.
Top New Position Initiated
LLY
市值: $2.9M
Top Position Liquidated / Trimmed
UBER
前期市值: $24.2M
During Q4 2025, United American Securities Inc.'s top holdings by market value included BRK-B (32.9%)、AMZN (15.1%)、MSFT (12.4%). The largest single position, BRK-B, represented 32.9% of total portfolio value.
In Q4 2025, United American Securities Inc. made 17 total portfolio adjustments, initiating 4 new buys, adding to 6 positions, trimming 5 holdings, and fully liquidating 2 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.