Hey
Breaking
20,0000 moved from unknown wallet to coinbase
If this amount was a figure moved from a federal wallet holding from seizure or any of such and it's being moved up to an exchange for trading or to some place where they can auction the bitcoin, then it could have been a thing of concern as it might have a negative impact on the market as it will create great fear on newbie traders and pulling off such a volume in one exchange is enough to get notice.
For the most part, it's okay to move coins from one place to another, irrespective of the amount you can move them from, where you feel less safe, to somewhere you feel it's much safer for you to hold that amount, so there's nothing to worry about. Even if that is for selling and the price drops, we will still see it recover over time.