That would not be significant, but you're putting a lot of concen on one event that actually happens more frequently than you think.

It doesn't matter if selling comes from 1 wallet or 1,000, there have been plenty of days, weeks, or months where there's been a major sell off. And major sell offs will drive the price down. It's all normal in the cycle of supply and demand investing.

The only concern you should have related to 1 wallet selling Bitcoin, is Satoshi's wallet...the first wallet...if you see coins coming out of that wallet you'll see a lot of people asking questions.