X0206 3 2017-08-01 0 0001183765 Molecular Templates, Inc. MTEM 0001576113 Morenstein Scott D C/O CAXTON ALTERNATIVE MANAGEMENT LP 1330 6TH AVENUE, 20TH FLOOR NEW YORK NY 10019 1 0 0 0 0001576081 CDK ASSOCIATES, L.L.C. C/O CAXTON CORPORATION, 731 ALEXANDER ROAD, BUILDING #2, SUITE 500 PRINCETON NJ 08540 1 0 0 0 0001388551 CAXTON CORP 731 ALEXANDER ROAD, BUILDING #2 SUITE 500 PRINCETON NJ 08540 1 0 0 0 0001325713 Kovner Bruce C/O CAXTON CORPORATION, 731 ALEXANDER ROAD, BUILDING #2. SUITE 500 PRINCETON NJ 08540 1 0 0 0 Common Stock 1013787 I See Footnote Warrants 6.8423 2017-08-01 2024-08-01 Common Stock 506893 I See Footnote These shares are held by CDK Associates, L.L.C. and may be deemed to be beneficially owned by (i) Scott Morenstein, a Managing Director of Caxton Alternative Management LP, the investment manager of CDK Associates, L.L.C., (ii) Caxton Corporation, the manager of CDK Associates, LLC and (iii) Bruce Kovner, the chairman and sole shareholder of Caxton Corporation. Scott Morenstein serves as a director of the Issuer. Caxton Corporation, Bruce Kovner and CDK Associates, L.L.C. may be considered directors by deputization due to their affiliation with Scott Morenstein. Each Reporting Person disclaims beneficial ownership of these shares except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. /s/ Scott Morenstein 2017-08-10 CDK Associates, L.L.C., By: Caxton Corporation, its Manager, By: /s/ Heath Weisberg, General Counsel 2017-08-10 Caxton Corporation, By: /s/ Heath Weisberg, General Counsel 2017-08-10 Bruce Kovner, By: /s/ Heath Weisberg, Attorney-in-Fact 2017-08-10