A substantial insider sell was reported on August 28, by Javier Rodriguez, Chief Executive Officer at DaVita (NYSE:DVA), based on the recent SEC filing. What Happened: Rodriguez’s decision to sell 40,119 shares of DaVita was revealed in a Form 4 filing with the U.S. Securities and Exchange Commission on Wednesday. The total value of the sale is $6,255,891. In the Thursday’s morning session, DaVita’s shares are currently trading at $154.56, experiencing a up of 0.64%. Delving into DaVita’s BackgroundDaVita is the largest provider of dialysis services in the United States, boasting market share …