X0306 4/A 2015-01-20 2015-01-21 0 0001293310 KALOBIOS PHARMACEUTICALS INC KBIO 0001230721 CROSS HERB C/O KALOBIOS PHARMACEUTICALS, INC. 442 LITTLEFIELD AVE. SOUTH SAN FRANCISCO CA 94080 0 1 0 0 Chief Financial Officer Stock Option (right to buy) 0.44 2015-01-20 4 A 0 15000 0.00 A 2025-01-19 Common Stock 15000 15000 D This amendment is being filed to correct the vesting details of the transaction reported. Due to a clerical error, the initial filing stated the vesting start date as February 8, 2015, not January 8, 2015. The option shares will vest and become exercisable ratably over 12 months of continuous service beginning on January 8, 2015, subject to the terms of the Company's 2012 Equity Incentive Plan. /s/ Brian Savage, attorney-in-fact 2015-03-13