Mark Zuckerberg, CEO of Meta, testifies during the Senate Judiciary Committee hearing titled "Big Tech and the Online Child Sexual Exploitation Crisis," in Dirksen building on Wednesday, January 31, 2024.Tom Williams | CQ-Roll Call, Inc. | Getty ImagesMeta shares plunged 16% in extended trading on Wednesday after the company issued a light forecast, which overshadowed better-than-expected first-quarter results.Here are the key numbers:Earnings per share: $4.71 per share vs. $4.32 per share expec...