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Basic Materials > Oil Gas Equipment Services > Gulfmark Offshore, Inc. (GLF):

Monthly insider trade sell & buy 5 month 1 year 2 years 5 years
Monthly insider trades : GLF
Nov12May13Jun13Jul13Aug13Sep13Oct13Nov13Dec13Feb14Mar14Apr14
Buy Volume 00000009151639392800280040
Sale Volume 1109538000149132315044871921574013415100063040

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Short interest : Gulfmark Offshore, Inc., more insider from : Ownership & insider Summary : More researchs with these providers for symbol GLF