A look at the weighted underlying holdings of the SPDR— S&P— Pharmaceuticals ETF (XPH) shows an impressive 11.4% of holdings on a weighted basis have experienced insider buying within the past six months. Start slideshow:10 ETFs With Stocks That Insiders Are Buying » Axsome Therapeutics Inc (AXSM), which makes up 3.72% of the SPDR— S&P— Pharmaceuticals ETF (XPH), has seen 2 directors and officers purchase shares in the past six months, according to the recent Form 4 data.