X0206 3 2014-04-10 0 0001401914 Cerulean Pharma Inc. CERU 0001237262 MCKEE WILLIAM C/O CERULEAN PHARMA INC. 840 MEMORIAL DRIVE CAMBRIDGE MA 02139 1 0 0 0 Stock Option (right to buy) 10.59 2024-01-26 Common Stock 13786 D This option was granted on January 27, 2014 and vests in three equal annual installments on the first, second and third year anniversaries of the date that Mr. McKee was elected to serve as a director of the Company. The option will fully vest as of January 27, 2017. Reflects a 1-for-14.5074 reverse stock split effected on March 31, 2014. /s/ William T. McKee 2014-04-10