Okay I've considered a lot of things and here's the reason(s):
Errr -- here's what it can't be:
** Day traders -- There's not enough of those guys to buy or sell 35 million shares in two days.
** A natural instituational buying pattern as we get closer to approval. No, a natural buying pattern would slowly ramp-up and NOT be a feeding frenzy.
** The Seeking Alpha article -- Child please -- Although it was good, it's just one man's opinion and the big boys on Wall Street have their own research staff.
** Mannkindly's many great posts on the Yahoo board -- Maybe -- LOL.
So, that leaves only these reasons:
** The FDA has agreed to a faster review --- which might cut 3-months off review process. This is a good thing, but still not a reason to jump into MNKD with both hands.
So, here's likely the real reason:
** A Big Phrama (take your pick) has blinked at the poker table. They've offered Al Mann a deal he can't refuse like $1 billion upfront money today -- Another $2 billion if trial results are positive -- and $5 billion upon FDA approval. That's $8 billion just to become a partner with MNKD, but they only have to pay $1 billion to buy-in to the MNKD poker game.
You forgot the most likely scenario. A few people who own a lot of shares are trying to get the stock to spike to make some quick money and a lot of people who don't know the difference between investing and gambling are buying it just because the price is going up.