Taxation of vested RSUs and a change of state

Hi,

I got some money from my RSUs (stock units) after the company I work for was sold in 2021 while I was a CA resident. I had opted for Sec 83B election and had not paid anything when the RSUs were granted 2 years back. I got the money while I was a resident of CA and no tax was deducted on it by my company. And then I moved to another state in mid August 2021. I am still on the rolls of the same company in CA but I live in a new state and work from there.

Would the entire amount I received be taxed in CA or also in my new state (the new state has state tax)?

Should I be paying advance tax on it now? If yes, entirely to CA?

Thanks,

RG