I agree that with an inventory of precious metals valued at $8.5 billion, an offer in the $3-4 range would not be sufficient to induce the Board of Directors to attend a special meeting. My belief is that the buyout offer is in the vicinity of $7/share which the officers would find attractive enough to seriously consider and which would allow the buyer to make a great enough profit on the sale of the minerals.
Reading between the lines of the PR, I would say that the deal is practically a lock, and that the Board of Directors is being convened to vote for and sign the final draft on Tuesday. Just my opinion though.