Thus, it is impossible to disprove that the company is really controlled by lizardoids from planet Nibiru, since if it would be, they certainly wouldn't tell you about it, so any behavior can be interpreted as caused by lizardoids, while no behavior can be interpreted as refuting this.

That is only true if these are the only variables. If you know that lizardoids invested in the company and CEO would told you to transport uranium to Nibiru, because think-of-the-children you are more likely to question the intent.

But if they said to transfer uranium to Minnesota instead, maybe it's still lizardoids and they just have space ship landed in Minnesota. And if they said to ship cornflakes and not uranium, maybe they know how to make nukes from cornflakes. With enough imagination, it is not possible to refute literally anything. Any action can be proof of any connection, if you're willing to accept conjecture and "well, it doesn't prove X is false therefore X is true".