Investors with significant funds have taken a bullish position in Sirius XM Holdings (NASDAQ:SIRI), a development that retail traders should be aware of. This was brought to our attention today through our monitoring of publicly accessible options data at Benzinga. The exact nature of these investors remains a mystery, but such a major move in SIRI usually indicates foreknowledge of upcoming events. Today, Benzinga’s options scanner identified 8 options transactions for Sirius XM Holdings. This is an unusual occurrence. The sentiment among these large-scale traders is mixed, with 50% being bul…