Steven Kaplan, Board Member at Morningstar (NASDAQ:MORN), executed a substantial insider sell on August 13, according to an SEC filing. What Happened: A Form 4 filing with the U.S. Securities and Exchange Commission on Tuesday outlined that Kaplan executed a sale of 1,250 shares of Morningstar with a total value of $381,837. The latest market snapshot at Wednesday morning reveals Morningstar shares down by 0.0%, trading at $310.05. Delving into Morningstar’s BackgroundMorningstar Inc is a provider of independent investment research to financial advisers, asset managers, and investors. The comp…