Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 001-36182 Xencor, Inc. (Exact Name of Registrant as Specified in its Charter) (State or Other Jurisdiction of Incorporation or Organization) 111 West ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10‑K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT For the fiscal year ended December 31, 2018 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001‑36182 Xencor, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware (State or Other Jurisdiction of Incorporation or Organizati ...

Xencor, Inc. (NASDAQ:XNCR) Q4 2018 Results Earnings Conference Call February 25, 2019 4:30 PM ET Company Participants Charles Liles - Associate Director and Head of Corporate Communications and IR Bassil Dahiyat - President and CEO Paul Foster - SVP and Chief Medical Officer John Kuch - SVP, Finance and CFO Conference Call Participants Ted Tenthoff - Piper Jaffray Alethia Young - Cantor Fitzgerald Arlinda Lee - CG Jonathan Chang - CVB Leerink Jackson Harvey - Nomura David Nierengarten - Wedbush Securities O ...