From Forbes:
For most of the 20th century, stock buybacks were deemed illegal because they were thought to be a form of stock market manipulation. But since 1982, when they were essentially legalized by the SEC, buybacks have become perhaps the most popular financial engineering tool in the C-Suite tool shed. And it’s obvious why Wall Street loves them: Buying back company stock can inflate a company’s share price and boost its earnings per share?—?metrics that often guide lucrative executive bonuses. As Reuters wrote recently, “Stock buybacks enrich the bosses even when business sags.”
Ibid