Noob question that I am sure is answered many times. What are the catalysts for a private company switching from options to RSUs (double trigger). In my previous role I got RSUs (double trigger), but now at a much smaller startup I have an option package. As an employee RSUs are a bit easier to make sense of, but both are equity instruments at the end of the day. When, and why does that transition happen?

Edit this is answered fairly well here: https://www.parkworth.com/blogs/pre-ipo-tech-giants-using-do.... The TLDR is SEC rules and limited perceived upside of options (although I imagine that could be solved via a lower strike price).

Correct. Stripe gave out stock options until around 2016 or 2017, then switched to double-trigger RSUs.

At Stripe, when your RSU vest, you still don't have the ability to buy the shares. Instead you have to wait for a liquidity event, or for 7 years to pass (making the shares worthless).