 Kevin Odonnell, President And Chief Executive Officer at Renaissancere Holdings NYSE:RNR, made a large insider buy on October 29, according to a new SEC filing. What Happened: A Form 4 filing from the U.S. Securities and Exchange Commission on Friday showed that Odonnell purchased 15,000 shares of Renaissancere Holdings at at prices ranging from 142.45 to 145.78. 