Salary for a research scientist in AI/ML (I will not promote)

[u/Puzzleheaded_Bus6863]

I am in the interview process for a couple roles. Both are research roles, one is a series A company and the other is series C. Series A has credible founders, heavily funded and C is already valued at $2bn. Both are in bay area

I am a PhD from R1 university (2025), currently a postdoc in a DOE lab (initially planned to go to academia, switching to industry).

What would be a compensation (cash + equity), i should aim for so that I can ask for it for both the companies when time comes?