Once every quarter, professional and everyday investors alike are given an opportunity to peer over the proverbial shoulders of Wall Street's top money managers to see what they've been buying or selling. Wednesday, Feb. 14, marked Form 13F filing day for the fourth quarter with the Securities and Exchange Commission.Although most investors are likely fixated on what Wall Street's brightest minds are doing with artificial intelligence (AI) stocks, the under-the-radar moves made by billionaire investors can ...