Warren Buffett is a household name, especially among investors and business-trend followers who are looking to enhance their wealth and income and have come to know him as "the Oracle of Omaha" for his stock-picking ability.

Many wealthy investors take cues from the 91-year-old Nebraskan's buying and selling habits.

After a relatively quiet couple of years during the COVID-19 epidemic, Buffett made news in 2022 when he reported that Berkshire Hathaway, the corporation he has supervised since 1965, had invested about $51.1 billion into the market since the beginning of 2022.

By the end of the first quarter, Berkshire Hathaway had made $9.7 billion from the sale of stock in other companies. Warren Buffett's recent stock purchases and commercial interactions with the company in 2022 are outlined.

1. Louisiana-Pacific Corp. (LPX)

Louisiana-Pacific manufactures engineered wood products such as oriented strand boards and siding. The housing market in the United States has slowed dramatically as interest rates have risen, and the corporation has a large degree of exposure to this sector.

Buffett may buy the shares in anticipation of a housing market recovery. In the third quarter, Buffett made his first investment in Louisiana-Pacific, and in the fourth quarter, Berkshire expanded its holding by 21 per cent. With Buffett's latest investment of about $1.25 million, Berkshire now owns over $7 million in shares, around $417 million.

2. Chevron

Berkshire This year, Hathaway raised its holdings in Chevron. Up from $4.5 billion at the end of 2021, Berkshire's overall stock holdings increased to $25.9 billion by the end of March.

Chevron's shares increased by more than 30 per cent when oil prices spiked following Russia's invasion of Ukraine. This, along with Chevron's supply-chain woes, is why Buffett and the company may have found the company to be a promising investment.

As a result of this investment, Chevron has joined Apple, Bank of America, American Express, and Coca-Cola as Berkshire's top five holdings.

3. Apple Inc.

With the addition of 333,856 shares in the fourth quarter, Buffett's total investment in Apple now exceeds 895.1 million shares, valued at over $116.3 billion.

Buffett's first Apple investment was in Q1 of 2016. Currently, Berkshire's Apple stake accounts for about 40% of Berkshire's total portfolio value and is more than three times larger than any of Berkshire's other public stock holdings. So far in 2023, Apple stock has outperformed, and for Buffett, who bought at the beginning of 2016, it has been a home run investment, yielding a total return of 536%.

4. Markel and Alleghany

Warren Buffett, CEO of Berkshire Hathaway and owner of insurance giants like Markel and Alleghany, is known to have a soft spot for the risk management sector.

Buffett has invested $420 million in specialist insurance policy underwriter Markel this year by purchasing 420,000 shares. About $620 million was spent on the acquisition.

Berkshire also bought Alleghany in the first quarter of 2022 for about $12 billion. The history of this firm is quite varied. Alleghany owns a toy manufacturer, a funeral products manufacturer, and a hotel development company, among other businesses.

5. Paramount Global (PARA)

In 2019, Viacom and CBS merged to establish Paramount Global, a multinational media and entertainment conglomerate. The corporation owns the Paramount Pictures film and television studios, the CBS and Comedy Central television networks, and the Paramount+, Showtime OTT, and Pluto TV streaming services.

Paramount is decently priced, with a projected P/E of 17.5 and a P/S of 0.5. Berkshire's stake in Paramount is now worth approximately $1.6 billion after increasing by 16% in the third quarter and another 2% in the fourth quarter. With this purchase, Berkshire becomes Paramount's largest stakeholder with a 15.4 per cent stake.

6. Celanese

Anyone putting money into the stock market should diversify their holdings. Your portfolio will be protected from losses in a single market segment. When Buffett had Berkshire buy 7.3% of Celanese Corp, a manufacturer of industrial chemicals, he set a great example of diversification.

U.S. News reports that Buffett has only one materials-related stock, Celanese. He put down $1.1 billion to buy 7.9 million shares.

7. Occidental Petroleum

In addition, Berkshire invested almost $7 billion in common shares of Occidental Petroleum. The company's preferred stock was already worth $10 billion to Berkshire. Buffett is placing a wager on energy and oil firms as oil prices climb.

In 2022, Occidental's stock price increased by more than 100%.

8. McKesson

McKesson Berkshire Hathaway has been divesting from the healthcare industry recently. But Buffett is still placing a wager on the healthcare sector but in a different way than before.

Upwards of 2.9 million shares of McKesson, one of the leading distributors of medicines and medical-surgical supplies, were purchased by Buffett in the first quarter of this year. About $895 million can be attributed to Buffett's investment.