The interview was set for recruiter, team member, VPs and then CEO. I did not make it to the last round.
I was asked to present an analysis I did; essentially was asked to share some work I had done. I went back and forth with this a lot; went with giving a high level overview. This didn't go over well. I was asked "Did I give this presentation before or make it for this"; seems like a short sighted question, why would I share an internal C-level document. I get the question and it makes sense to ask but it puts potential candidates in a bad spot. Either you share the internal report or you change number, which means changing the graphs and much more. You have a good test environment; why not take some data from there for a candidate to analyze. As someone who has also been an interviewer for technical topics I wouldn't ask someone to spend time on something like this; it's asking for made up items. Seems like someone hasn't thought through the question fully and is trying to be clever.
Totally not worth the time to interview with 5+ interviews (red flag itself) and homework. You have an awesome product but this process is pretty poor. The new norm is to avoid these types of interviews with this many steps for a candidate. If this is a big pay bump then go for it if it is lateral or less (my situation); look elsewhere to spend your efforts until they streamline this.