Rust Pipe Company was established in 1994. Four years later the company went public. At that time, Roberta Rust, the original owner, decided to establish two classes of stock. The first represents Class A founders' stock and is entitled to 11 votes per share. The normally traded common stock, designated as Class B, is entitled to one vote per share. In late 2010, Mr. Park, an investor, was considering purchasing shares in Rust Pipe Company. While he knew the founders