Which company is the parent of insurance, railroad, and energy businesses and trades as BRK.A?

Berkshire Hathaway is the parent company of insurance, railroad, and energy businesses and trades under the ticker BRK.A.

Berkshire Hathaway grew from a struggling textile manufacturer into a diversified holding company under Warren Buffett and Charlie Munger. Its major businesses have included insurance operations, BNSF Railway, Berkshire Hathaway Energy, manufacturing, retail, and investments in publicly traded companies.

BRK.A identifies Berkshire’s Class A shares, which have an exceptionally high price per share. The company also issues Class B shares under the ticker BRK.B, with a much lower price and fewer voting rights. The two classes represent the same corporate group but are not identical securities.

Berkshire’s market capitalization is often discussed alongside major technology companies, even though its business mix is different. Its insurance operations generate funds that the company can invest, a model commonly associated with the term “float.”