Some tech companies are delaying or pulling their listing plans as the Trump administration’s tariff announcements and other changes cause market volatility and uncertainty.

Bret Taylor, the chairman of OpenAI’s board, said the artificial intelligence company was “not for sale.” Mr. Musk is separately raising money for his...

The social media company is attracting investor interest because of Elon Musk’s close ties to President Trump and a recent jump in revenue.

The popular social media app was removed to comply with a new law that banned it in the United States. President Trump has paused...

The social media site agreed to pay in the range of $10 million to settle with the president, who had sued over the suspension...

The billionaire is leading a group of investors in the unsolicited offer, which complicates the start-up’s plan to raise more money.

After helping President Trump get elected, Elon Musk was poised to dominate the country’s A.I. policies. Then Mr. Altman sneaked into the White House.

Other big technology companies have been boisterous in their courtship of the new administration. But Nvidia and Microsoft have avoided the Washington spotlight.

The company’s cloud computing business showed strong growth, while a forecast for the current quarter disappointed investors.