I’m of the opinion that you should sell your RSUs as soon as they vest. RSUs are restricted stock units. Basically, they’re a way for your employer to give you money but not give you money. They’re a way for them to give you a carrot to make you want to stick around.
For example, I got a letter from my employer telling me I got a grant of a few hundred stock units. Happy day! This was back in November. I kept waiting for them to show up in my account. I read the fine print and found that they would be released in January after the compensation committee approves them. These units usually vest over a period. In the past I’ve seen it so that it vests every 6 months, or sometimes it vests every year. So that means if this goes through and its a 6 month plan, then I won’t actually get the money until 6 months from now, and that’s only if I sell them.
Since you already get taxed for them when you buy them then it makes sense to just sell them immediately. Look at it this way: If you were given a bonus, would you just put it all in your own company’s stock? Your answer may be yes. Mine is not. I think my company has great prospects, but I’d rather diversify it. This limits my risk and lets me put the money to work in other places.