X0206 3 2017-08-01 0 0001183765 Molecular Templates, Inc. MTEM 0001619884 Hirsch David C/O LONGITUDE CAPITAL PARTNERS III, LLC 800 EL CAMINO REAL, SUITE 220 MENLO PARK CA 94024 1 0 1 0 Common Stock 2896535 I By Longitude Venture Partners III, L.P.(1) Warrants 6.8423 2017-08-01 2024-08-01 Common Stock 1448267 I By Longitude Venture Partners III, L.P. These shares are held by Longitude Venture Partners III, L.P. The Reporting Person is a member of Longitude Capital Partners III, LLC, the general partner of Longitude Venture Partners III, L.P., and may be deemed to share voting and investment power over these shares. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. /s/ David Hirsch 2017-08-10