The phrase "buy back shares" means a company repurchases its own shares from its shareholders, usually in order to return profits or reduce the number of outstanding shares in the market. Full definition
In other jurisdictions, open - funds may only be required to buy back shares at longer intervals. (en.wikipedia.org)
The mechanism lets banks buy back the shares at the offering price, in case the company's stock price needs a little help on the first day. (theatlantic.com)
The act of buying back shares of stock is a separate capital allocation decision, regardless of the reason why you're buying those shares. (basehitinvesting.com)