Gentherm (THRM) also was a top contributor to performance for the year. Gentherm supplies major automobile manufacturers with personal comfort modules for heating and cooling seats, steering wheels and cup holders. Through volume growth led by new platform wins, Gentherm was able to grow top line revenues at double digits while increasing the bottom line in the mid-teens as margin improvement took hold in 2015. This led to a nice increase in the stock price for the year. We believe the outlook remains positive for these products and for Gentherm’s business going into 2016.
From Mairs & Power Small Cap Fund 4th quarter investor letter.
