If the prosecutors succeed, the cases could remake the company, which has experienced only unfettered growth. Mark Zuckerberg, Facebook’s chief executive, has described a breakup of the company as an “existential” threat. The company’s stock fell 2 percent, to $277.70 a share, after the lawsuits were announced.The case is also being widely watched as a gauge for future mergers within the technology industry, which have continued to boom during the pandemic. Last month, Facebook said it was buying Kustomer, a customer relationship management start-up, for close to $1 billion.Facebook said the regulators had ignored important history.“The most important …
