Bulk metallic glasses deform inhomogeneously at low homologous temperatures via shear-banding. Whilst the dynamics of shear bands has been summarized by our previous studies (Adv.Func.Mat., 25, 2353 (2015)), little is known about the structure inside and around a shear-band. In this talk we demonstrate that shear bands can have long range stress fields, which reach local values as high as the yield stress of the material. By measuring nanomechanical properties along an isolated shear band, the indirect signature of long range and strongly position dependent internal stresses along the shear band are revealed. The strongest internal stresses are located near cavities on the shear-band plane, where cavity end-points exhibit stress patterns that are reminiscent of mixed mode crack-tip stress fields (Appl.Phys.Lett., 171902, (2014), Acta.Mater., in press (2015). The findings are discussed in terms of a shear-band-to-crack transition and internal stress development during shear-band dynamics in a bulk metallic glass.