Near the bottom the article briefly mentions that the regulators were worried about "self-dealing" in the Facebook-Instagram deal, where someone was offered a

Near the bottom the article briefly mentions that the regulators were worried about "self-dealing" in the Facebook-Instagram deal, where someone was offered a personal side benefit for making the sale happen. It's a serious problem in corporate governance in the US, but it's not in the interests of any individual involved, including the victim, to uncover any particular instance of it, because the deal is done and a prosecution would only damage the company they presumably still own.