For general bands it work like this

Band 1 - CEO
Band 2 - Global Heads
Band 3 - Heads / MDs
Band 4 - EDs / SVP

From here there are Band and Grades (local grade)

Band 5 / M22-23 - Directors / VPs
Band 6 / M20-21 - ADs / AVPs

Band 7 / M18-19 - Managers / Associate
Band 8 / M17 - Analyst

Band 9 ++ - entry level