I agree with your analysis except one point. The company would not know if SEO and "friends" are in negotiations to sell their (51%) shares. Once SEO and "friends" agree to sell their 51% then the company would be notified threfore shareholders would be told that majority shareholders have agreed to sell their shares for $x and this has been approved (or not) by the board.
Someone "courting" SEO and friends would never have to be disclosed until he agreed to a price.
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