Anything is possible, but so much money moves so often between the US and Europe that any given wire transfer just isn’t that interesting.
I would put the risk as being with your bank deciding that you wanting to move so much money all at once might be suspicious to them, which would cause them to say something. Even then though, you have a legit reason - you want to move your money from one bank account in your name to another bank account in your name for an investment, something that again happens all the time.
I haven’t done a GV transfer but I move money to and from Europe for various other investment reasons and it’s never been an issue.