#CongressTradingBan The Stop Trading on Congressional Knowledge (STOCK) Act intended to prohibit members of Congress from buying or selling securities based on information gained on the job, but the bill died in House committee three times (2006, 2007, 2009) with only a few sponsors. On Nov. 13, 2011, 60 Minutes reported that several members of Congress allegedly used insider information for personal gain, and the STOCK Act received 84 additional House co-sponsors within five days. On Apr. 4, 2012, the STOCK Act was signed into law by President Obama.