It was a very good return on a small investment. I mostly missed the post-pandemic boom selling too early, so I guess I made around 20-30x overall.

Doesn't change my opinion of Musk's practices. If he's selling very expensive features that are actually donations into the hopes & dreams tip jar, it should be clearly marked as such.

~10x? Or were there a lot of splits my numbers aren’t showing?

Depends on when you bought in 2013. I bought in early 2013 at $32 (pre-split), for about 200x.

If you bought late in 2013 you probably paid ~$180, for only 30x.