Inversion Crackdown Leaves Several Deals In Limbo By: Benzinga via Benzinga September 23, 2014 at 12:41 PM EDT A federal crackdown on so-called tax inversions left roughly a dozen companies in limbo Tuesday as share prices wavered. Analysts ... Read More >> Related Stocks: AbbVie Abbott Laboratories Astrazeneca Plc ADR Macy's Shire Plc Ads Smith & Nephew Snats ADR