Buffett remains chairman of the sprawling, Omaha-based conglomerate and continues to regularly come into the office, Abel said.

The 62-year-old executive's purchase came a little more than two months into his tenure running the Omaha, Nebraska-based conglomerate.

Buffett remains chairman of the sprawling, Omaha-based conglomerate and continues to regularly come into the office, Abel said.

Berkshire Hathaway's new CEO, Greg Abel, generated some significant headlines during a roughly half-hour live interview on CNBC's "Squawk Box."