The bottom line on treasury stock
Many well-known companies regularly repurchase shares and turn them into treasury stock. For example, Apple (AAPL -0.83%) engages in share buybacks, where it uses its own funds to purchase its outstanding shares in the open market.
Once Apple buys back its shares, they're held as treasury stock. Shares of treasury stock is no longer considered outstanding, so they don't contribute to the total number of shares that are publicly traded.
Investing in companies that do share buybacks can be beneficial for investors, since it can increase demand for the stock, potentially boosting its price and earnings per share. However, it's crucial to assess the company's overall financial health and the reasons behind the buybacks before investing.