During testimony at Meta’s antitrust trial, the Facebook founder’s argument was, in so many words, that platforms like his are not what they used to be.

Mark Zuckerberg's journey from a Harvard dorm room to the helm of Meta Platforms Inc. has revolutionized digital interaction.

Meta’s antitrust trial, in which the government contends the company killed competition by buying young rivals, hinges on ...

In an internal email surfaced as part of the Meta antitrust trial, Meta CEO Mark Zuckerberg fretted about the potential that the company’s Instagram acquisition may cannibalize Facebook.