Sending in SAT scores

I took the SAT 4 times, with a significantly higher score each time. My first score is really low in comparison to my last one. I was just planning on sending in my highest score, which was the most recent time that I took it, but the UC website says that they require you to send in all scores. I read somewhere that taking it that many times looks bad, but will they penalize me if I just send in the last score?

Honestly, as long as your showing significant improvment from one test to another (i.e. 1500 on first test → 2100 on last test), they shouldn’t care too much. In fact, I doubt they would care at all if you managed to a hit a truly high score by your last try. Plus, they often dismiss low scores that dont match up with the rest of the application as a possible sick day or recent circumstance that doesnt allow you to do well.