A look at the weighted underlying holdings of the Invesco S&P SmallCap 600— Equal Weight ETF (EWSC) shows an impressive 10.8% 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 » Tabula Rasa HealthCare Inc (TRHC), which makes up 0.24% of the Invesco S&P SmallCap 600— Equal Weight ETF (EWSC), has seen 4 directors and officers purchase shares in the past six months, according to the recent Form 4 data.