X0306 4 2019-03-05 0 0001674930 Fulgent Genetics, Inc. FLGT 0001302110 Hsieh Ming C/O FULGENT GENETICS, INC. 4978 SANTA ANITA AVENUE TEMPLE CITY CA 91780 1 1 1 0 President and CEO Common Stock 2019-03-05 4 P 0 8739 4.9479 A 6579326 D Common Stock 1315789 I by Annuity Trust The shares were purchased in multiple transactions at prices ranging from $4.85 to $4.95, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected. The securities are held of record by the Ming Hsieh Annuity Trust established May 4, 2016, over which the reporting person possesses sole voting and dispositive power as the sole trustee. /s/ Paul Kim as Attorney-in-Fact 2019-03-07