TransMedics now looks weak, and weak names are not worth touching regardless of how cheap they look. The market is selling on falling operating margins; rising costs come from R&D and clinical trials, which is healthy, but there is more to it than margins. TransMedics is not passing fuel costs fully to customers, covering only part with a flat fee, and it is now offering cold-storage transplants, shifting from running both trial arms itself to offering the service. x.com x.com x.com x.com x.com