Payback sign on bonus

I joined adobe in November and received 20k sign on bonus. I am planning to leave in March, how does the payback works 1) does adobe ask to payback signing bonus 2) Will i be paying pro rated bonus back? so which means i need to return remaining 8 months pro rated bonus back 3) Pro rated based on before or after taxes amounts. #tech #adobe #faang #signon #tech