I don't know anything about aldr but a look at the insiders' behavior does not give me any confidence. Every option they get , they sell. A great sign of confidence huh? Compare that to enta Luly. And also these insiders don't have that many shares either.
At least fgen's big cheese has a stake of 3.8M sh and if he regularly exercises his options and then sells them to keep his stake constant at 3.8Msh, I can understand it.