12/16 would mean there are 12 16th notes in each measure, which we would just call 3/4 or 6/8, depending on how the beats are broken up. A sixteenth note is 1/4 of a quarter note, so unless there's some majorly specific reason, 12/16 isn't a thing.
This is solidly in some duple time (each measure length is divisible by 2 instead of 3) - you can hear it in the drum beat (bass-snare-bass-snare). It's in a group of 3 measures of 4/4, so you could call every verse one bar of 12/4, but that would defeat the purpose of a 4 bar loop. If I'm playing this with a band I'm not gonna say "can you put a crash on beat 9", I'll say "the downbeat of the third bar)"
My whole point is, the verse is 3 bars of 4/4 on repeat, which is different from the standard four bars of 4/4, which is most music.
Same goes for this:
3 measure loop, each measure is 4/4
This is 3/4:
Each measure is a series of 3 beats (oom-pah-pah)