In Defensive Stats - specifically the ones given when unlocking Additional Bonuses of the Human, Werewolf and Werebear glyphs.
Compare with Damage Reduction while Shapeshifted into a Werewolf from the Vigorous Aspect, which not only shows in All Damage Reduction, but also shows a status icon !
P.S.: They also don’t show even briefly after Shapeshifting.
Potentially related :
EDIT : maybe also the one described in the first two posts of the “Tectonic Glyph not grantig Lucky Hit” thread.