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Cars.com has a major new investor, Apple looks to expand in India, Berkshire Hathaway hits a milestone

Here’s a look at some of the companies the Yahoo Finance team will be watching for you today.

Hedge fund Starboard is taking a major stake in Cars.com (CARS), buying almost 10% of the auto advertising site. Starboard says the market is undervaluing the company and ignoring the potential for a sale. Starboard also believes that when Cars.com is fully separated from the media companies that founded it, revenues will soar.

Apple (AAPL) is making a move to grab market share in the world’s third-largest smartphone market. The tech giant is naming longtime exec Michel Coulomb as head of sales in India. Coulomb will replace Sanjay Kaul, who will be leaving after six years with Apple. Apple sales in India grew in the past year but at a much slower rate than the year before.

Warren Buffett’s Berkshire Hathaway (BRK-A) just hit a major milestone. The company’s stock reached $300,000 for the first time on Monday. The price reflects investor confidence in Buffett’s company despite four straight quarters of lower operating profit.

Coffee isn’t the only thing brewing at Dunkin Donuts (DNKN). The coffee and donut chain is teaming up with Wormtown brewery to launch a coffee-flavored beer at its Massachusetts taproom for the winter solstice. It’s described as a “decadent stout-style beer” with a “full-roasted coffee flavor.”