whatswrong

GeoEye Imagery Now on Google Maps

I have looked all around and would appreciate any and all comments in regards to the holders of GEOY stock. This information I have gathered does not add up.
-Insiders hold 3.8 mil shares and have been adding to there positions
-Institutions (according to nasdaq.com) hold 25 mil shares and they also have been adding to there positions.
-There are only 18 mil shares outstanding
How can this be?
There are also 3 mil shares short.
Any insight into this would be greatly appreciated.