What just happened with Elon Musk's Twitter deal? What does it mean for shareholders?
FILE - The logo for Twitter appears above a trading post on the floor of the New York Stock Exchange, Monday, Nov. 29, 2021. Elon Musk is taking a 9.2% stake in Twitter. Musk purchased approximately 73.5 million shares, according to a regulatory filing. (AP Photo/Richard Drew, File)
The Elon Musk-Twitter drama has provided a crash course in corporate takeover terminology, such as tender offers and poison pills. (Richard Drew / Associated Press)

Money can't buy you love, the Beatles memorably advised. But can it at least buy you Twitter?

Elon Musk, whom Forbes ranks as the world's richest person, reached an agreement Monday with Twitter's board of directors to buy all the social network's shares for $44 billion and convert it to a privately held company.

Not surprisingly, buying a publicly traded company is more complicated than buying a loaf of bread or even a house. It's not just a matter of having the right amount of cash, although that's an important prerequisite. It's also about persuading the current owners to take the money.

Musk has won over Twitter's directors, but a majority of the shareholders must still agree to his offer. And then, depending on the terms of the deal and how big a stake he acquires in the first go-around, he may have to take more steps to vacuum up the rest of Twitter's stock.

There are also federal laws that must be obeyed. Among them are disclosure requirements for would-be buyers and fiduciary obligations for the target company's directors, whose duty is to the shareholders who elect them.

Here's a look at some of the basics of corporate takeovers, as explained by experts in securities law and corporate governance.

Becoming a major shareholder

Publicly traded companies are owned by their shareholders, who often are institutional investors such as pension funds and mutual fund companies. The shareholders elect the directors, who are legally bound to act in the shareholders' best interests — even if they are not required to be shareholders themselves. The directors, in turn, hire the executives to run the company and determine its strategy.

Usually a would-be buyer will talk to top company executives before making a play for a controlling stake; having the support of management would help win over the board, which would make it easier to persuade shareholders to sell. Musk took a different route, quietly becoming Twitter's largest non-institutional shareholder before negotiating briefly with Twitter's management, then announcing his intention to buy the rest of the company's stock.

So why didn't he just keep buying shares on the QT until he effectively owned the company? Because if investors obtain more than 5% of a company's voting shares, the federal government requires them to file a form with the U.S. Securities and Exchange Commission within 10 days disclosing how much of a company's stock they hold, how they paid for the shares and — this is the most important part — whether they plan to seek control of the company.