Can anyone explain to me how if it's true that the Saudis are backing the buy out it would not be a case of insider trading? The way I understand it the Saudis

Can anyone explain to me how if it's true that the Saudis are backing the buy out it would not be a case of insider trading? The way I understand it the Saudis announced they bought a 5% stack the morning that musk announced that he plans to take the company private (presumably with Saudi money) so wouldn't the Saudi's 5% stake have been purchased with the "inside information" that a going "private" announcement was imminent?