X0206 3 2016-10-28 0 0001512228 NIOCORP DEVELOPMENTS LTD NIOBF 0001183513 CECIL JOE D C/O NIOCORP DEVELOPMENTS LTD. 7000 YOSEMITE STREET, SUITE 115 CENTENNIAL CO 80112 1 0 0 0 Employee Stock Option (Right to Buy) 0.6871 2014-12-22 2017-12-21 Common Shares 500000 D Employee Stock Option (Right to Buy) 0.4353 2016-01-21 2021-01-20 Common Shares 300000 D The exercise price reported above was converted from the Canadian exercise price of $0.80 using an exchange rate of Cdn$1.1643=US$1.00. The options vest as follows: 50% on 7/21/16; 25% on 1/21/17; and the remaining balance on 7/21/17. The exercise price reported above was converted from the Canadian exercise price of $0.62 using an exchange rate of Cdn$1.4243=US$1.00. /s/ Joseph D. Cecil 2016-11-01