Teva is presumably disposing of the drugs to avoid antitrust issues, so the transfer of the drugs likely won't occur until the acquisition is complete. Barr's shareholders approved the acquisition last week, and the companies continue to say that they're on track to complete the transaction by the end of the year.
It's probably not surprising that Teva shipped the drugs off to tiny Watson, rather than to much larger Novartis
Much like discount stores Wal-Mart
It seems almost inevitable that we'll see more mergers in the coming years. The smaller generic-drug companies that specialize in one area will get snatched up, and we could even see a branded-drug company pick up a generic counterpart.