a lot of people selling below the ICO price why

because some early ICO investors already in profit , they was buying time tokens when BTC was 680 - 700 USD per btc and now BTC is 1180 USD+

This is the issue in ICO investing, you see some people view their investment interms of BTC why some people are only concern about is the $$ valuation. You can't blame anyone that invested into the project when the price was in $700 range and decided to take profit is like blaming someone for selling is Bitcoin when the price broke the ATH