Warren Buffett is arguably the world’s most famous investor, and his investment moves are closely followed. Each quarter, the company he runs, Berkshire Hathaway, discloses its current holdings to shareholders.

Buffett strongly believes in concentrating Berkshire Hathaway's investment capital into his best ideas. Five top-tier companies, with clear competitive advantages and phenomenal capital-return programs,

Berkshire, along with most other institutional investors, will disclose its equity holdings for U.S-listed companies in a 13-F filing with the Securities and Exchange Commission.

Given the overbought and expensive stock market, these four Warren Buffett favorite dividend stocks look like safe ideas for investors now.

It's no big secret that Warren Buffett has been a net seller of stocks recently. Thanks to several massive stock sales, and a few smaller ones, Berkshire Hathaway 's ( BRK.A 0.50%) ( BRK.B 0.52%) cash stockpile has ballooned to $325 billion as of the most recent quarter, far more than the conglomerate has ever had on hand before.

Finally, one of Berkshire's newest additions could be a good fit for you as well. That's Domino's Pizza (NASDAQ: DPZ). Buffett bought nearly 1.3 million shares of the pizza powerhouse in the third quarter of last year, worth roughly half a billion dollars.

Berkshire Hathaway offers a promising investment opportunity with a strong portfolio and cash reserves, despite short-term risks. Explore more details here.