X0306 4 2015-04-28 0 0001607678 Viking Therapeutics, Inc. VKTX 0001606831 MACARTNEY LAWSON C/O VIKING THERAPEUTICS, INC. 11119 NORTH TORREY PINES ROAD, SUITE 50 SAN DIEGO CA 92037 1 0 0 0 Stock Option (Right to Buy) 8.00 2015-04-28 4 A 0 20786 0.00 A 2025-04-28 Common Stock 20786 20786 D 100% of the shares subject to the option shall vest on the date of the Issuer's first Annual Meeting of Stockholders following the date of grant, subject to the Reporting Person's continuous service on the Issuer's Board of Directors through immediately prior to such Annual Meeting. /s/ Brian Lian, Ph.D., as Attorney-in-Fact 2015-04-30