0001209191-23-054626.txt : 20231107 0001209191-23-054626.hdr.sgml : 20231107 20231107173247 ACCESSION NUMBER: 0001209191-23-054626 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231106 FILED AS OF DATE: 20231107 DATE AS OF CHANGE: 20231107 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Paulson Richard A. CENTRAL INDEX KEY: 0001804460 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36167 FILM NUMBER: 231385249 MAIL ADDRESS: STREET 1: 85 WELLS AVENUE CITY: NEWTON STATE: MA ZIP: 02459 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Karyopharm Therapeutics Inc. CENTRAL INDEX KEY: 0001503802 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 263931704 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 85 WELLS AVENUE STREET 2: SECOND FLOOR CITY: NEWTON STATE: MA ZIP: 02459 BUSINESS PHONE: 617-658-0600 MAIL ADDRESS: STREET 1: 85 WELLS AVENUE STREET 2: SECOND FLOOR CITY: NEWTON STATE: MA ZIP: 02459 4 1 doc4.xml FORM 4 SUBMISSION X0508 4 2023-11-06 0 0001503802 Karyopharm Therapeutics Inc. KPTI 0001804460 Paulson Richard A. C/O KARYOPHARM THERAPEUTICS INC. 85 WELLS AVENUE NEWTON MA 02459 1 1 0 0 President and CEO 0 Common Stock 2023-11-06 4 S 0 3606 0.9203 D 791201 D This transaction was effected pursuant to a durable automatic sale instruction plan adopted by the reporting person on June 10, 2021, and represents a broker-assisted sale of shares to satisfy the payment of withholding tax liability incurred upon the vesting of restricted stock units. The sale does not represent a discretionary trade by the reporting person. /s/Nancy Smith as Attorney-in-Fact for Richard Paulson 2023-11-07