According to a report at The New York Times's Dealbook, Berkshire Hathaway and 3G Capital announced a $23 billion buyout of the company on Thursday. Berkshire Hathway and 3G Capital are buying Heinz for $72.50 a share.

Kerry held $3 million worth of shares in the company in 2012, according to a disclosure from the Center for Responsive Politics. Kerry's wife, Teresa Heinz Kerry, is also heir to H.J. Heinz and holds a notable stake in the company.
Kerry previously promised to lose some of his investments when he became secretary of State. According to Dealbook, Kerry is likely to drop his stakes in Apple and Goldman Sachs as well as a number of other corporations. According to the Boston Globe, Kerry has also promised to cut certain ties with Heinz that could create ethical conflicts.

It's not clear if Kerry has sold his Heinz shares since his most recent disclosure of his stake in the company as a senator. After that disclosure in August 2012, the company's share values have increased by 30 percent.