Elon musk tweeted his Twitter profile with his own speech, I don't sell my bitcoin which means that elon musk a viral person who already invested bitcoin and dogecoin but he didn't sell his any cryptocurrencies.
Even if he sold his bitcoin, what's that got to do with everyone in the market? Yes the prices will go down when Elon dumps his coins but we know that it will just get back up.
Yes ofcourse mate, absolutely nothing if he sold but for Elon Musk to make such statement wasn't just to create fear in the mindset of other investor but to clear the air about what others said about him that was wrong. Tesla as a company sold their 10% holding in bitcoin to prove liquidity and rumors went around that it was Elon Musk instead of Tesla, so, he took time to address that.