An acquisition is the purchase of more than 50% of the shares of one company (the acquired company) by another company (the purchaser). This is also called a sale of the acquired company. In an acquisition, the acquired company cedes control to the purchaser.
Definition The ability to buy and sell stock is called liquidity. In startups and many private companies, it is often hard to sell stock until the company is sold or goes public, so there is little or no liquidity for shareholders until those events occur. Thus, sales and IPOs are called both exits and liquidity events. Sales, dissolutions, and bankruptcy are all called liquidations.