The press is speculating that $16 per share is the number to get in on the action. Viterra did not mention any names in their public statement. The Globe and Mail is reporting that Viterra has told suitors you need to bid $16 per share just to play.
As mentioned in the BNN interview, Viterra has cautioned that this does not mean that a deal will get done. The names being tossed around are Glencore, Richardsons, Agrium (3 way deal), ADM and Bunge.