No, it's a USM... "Nano USM"
Nano USM

From Canon:
Nano USM technology enables both continuous, silent focusing when shooting video and extremely fast AF for completely spontaneous photos - making this lens ideal for both uses. The ultra-quiet motor ensures that audio is not disturbed by focusing noise when shooting video and enables continuous focus tracking and smooth focus transitions.

Their STM didn't really live long ^^
R.I.P. STM 2012-2016