X0204 3 2012-02-09 0 0001408278 Synacor, Inc. SYNC 0001541663 Frankel Ronald N C/O SYNACOR, INC. 40 LA RIVIERE DRIVE, SUITE 300 BUFFALO NY 14202 1 1 0 0 President and CEO Common Stock 1342218 D Employee stock option (right to purchase) .92 2017-04-02 Common Stock 172725 D Employee stock option (right to purchase) 2.52 2017-09-13 Common Stock 36096 D Employee stock option (right to purchase) 2.52 2017-09-13 Common Stock 68904 D Employee stock option (right to purchase) 3.32 2021-08-15 Common Stock 84640 D Employee stock option (right to purchase) 3.32 2021-08-15 Common Stock 90360 D Reflects a 1 for 2 reverse stock split, effective as of immediately prior to the effectiveness of the Issuer's Registration Statement on Form S-1. Reflects the converted exercise price of each option share pursuant to the 1 for 2 reverse stock split, effective as of immediately prior to the effectiveness of the Issuer's Registration Statement on Form S-1. The option was immediately exercisable for 107,913 of the shares on April 3, 2007, the date of grant. The remainder became exercisable on December 31, 2007. Shares purchased upon exercise of the option were subject to repurchase by the Issuer until vested. 25% of the shares subject to the option vested upon completion of 12 months of continuous service after April 3, 2007 and the remainder vested in 36 equal monthly installments thereafter, subject to the Reporting Person's continuous service through such dates. The option was immediately exercisable on the date of grant. Shares purchased upon exercise of the option were subject to repurchase by the Issuer until vested. 25% of the shares subject to the option vested upon completion of 12 months of continuous service after October 1, 2007 and the remainder vested in 36 equal monthly installments thereafter, subject to the Reporting Person's continuous service through such dates. The option became exercisable for 8,095.5 shares of common stock on December 31, 2007. The option became exercisable for an additional 20,269.5 shares on each of December 31, 2008, 2009 and 2010. Shares purchased upon exercise of the option were subject to repurchase by the Issuer until vested. 25% of the shares subject to the option vested upon completion of 12 months of continuous service after February 1, 2008 and the remainder vested in 36 equal monthly installments thereafter, subject to the Reporting Person's continuous service through such dates. The option was immediately exercisable on the date of grant. Shares purchased upon exercise of the option are subject to repurchase by the Issuer until vested. 25% of the shares subject to the option will vest upon completion of 12 months of continuous service after September 1, 2011 and the remainder vest in 36 equal monthly installments thereafter, subject to the Reporting Person's continuous service through such dates. The option became exercisable for 30,120 shares of common stock on December 31, 2011. The option will become exercisable for an additional 30,120 shares on each of December 31, 2012 and 2013. Shares purchased upon exercise of the option are subject to repurchase by the Issuer until vested. 25% of the shares subject to the option vest upon completion of 12 months of continuous service after September 1, 2011 and in 36 equal monthly installments thereafter, subject to the Reporting Person's continuous service through such dates. /s/ Ronald N. Frankel 2012-02-09