Ariad Pharmaceuticals Inc fka ARIA

[zuize]

Why would short position increase as board meeting arrives

The increase in short interest coming out today for the period from 04/01/15 to 04/15/15 was only 600K (= 46.1M - 45.5M) shares, is insignificant compared with the total 46M shares shorted. So I would consider it's unchanged rather than the wildly change of a couple million shares in the previous periods.

Based on the the stock price kept increasing every day during the period as shown below, I guess someone probably had an impression that we were trading at near the year high and while the stock price kept on moving higher everyday, then it was a good idea to short some shares as they expected the price would fall back at some point. And another the reason for their short was because they did not anticipate the wonderful '113 clinical data coming out from AACR conference:


I expect short interest will drop significantly in the upcoming report (for the period from 4/15/15 to 4/30/15), as stock price keeps on moving higher based on '113 clinical data, and Don Seiffert's report of Ariad worth more than $3 billion