High-rolling investors have positioned themselves bullish on Viking Therapeutics (NASDAQ:VKTX), 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 VKTX often signals that someone has privileged information.Today, Benzinga's options scanner spotted 13 options trades for Viking Therapeutics. This is not a typical pattern.The ...