trying to make sense of nabi sp ex dividend, page-6

But I do not think this is being manipulated at all. We do see the share prices of strong companies, such as CBA, recover to their pre-dividend-record-date levels very soon after their dividend record dates. Why can't Nabi do the same, especially when you think that the final merger approval was also done on the record date?

We may also ask why those people sold their Nabi shares in the Self-tender offer at $1.68 per share while they know that the company has (no debt) around $2 cash per share?