For a setup with conflicts of interest left right and centre, you end up adding another: a bank wanting to depress the share price once it hits a threshold. Who

For a setup with conflicts of interest left right and centre, you end up adding another: a bank wanting to depress the share price once it hits a threshold. Who, if that were to happen, would buy a share knowing Goldman's eagle eyes are on it, ready to slap it back down to 30%?