** Shares of GPS service provider NextNav NN.O fall 3.9% to $9.87 premarket

** Co late on Wednesday posted Q4 loss of $32.3 million, compared with analysts' average loss estimate of $18.54 million, as per data compiled by LSEG

** NN reported Q4 revenue of $1.9 million, vs analysts' estimate of $1.73 million

** NN stock up 93.2% in the past 12 months

(Reporting by Padmanabhan Ananthan)

((Padmanabhan.Ananthan@thomsonreuters.com;))