High-rolling investors have positioned themselves bearish on Vertex Pharmaceuticals (NASDAQ:VRTX), and it’s important for retail traders to take note.\This activity came to our attention today through Benzinga’s tracking of publicly available options data. The identities of these investors are uncertain, but such a significant move in VRTX often signals that someone has privileged information. Today, Benzinga’s options scanner spotted 12 options trades for Vertex Pharmaceuticals. This is not a typical pattern. The sentiment among these major traders is split, with 8% bullish and 83% bearish. A…