Yeah, the thing I mentioned about "selling in patterns" is based on something I vaguely remember a while back regarding Zuckerberg. He did a big selloff right before Facebook/Meta announced some big embarrassment and people were certain he'd face insider trading, but "this fits a pattern of seasonal sales" was the excuse I saw some people throw around and I never heard anything about it again.

Personally at that level I think it'd be cheaper to hire a US Senator to do the buying/selling for you, they're immune to insider trading and they can count their cut as campaign money.