0000950170-24-023292.txt : 20240229
0000950170-24-023292.hdr.sgml : 20240229
20240229173554
ACCESSION NUMBER: 0000950170-24-023292
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20240227
FILED AS OF DATE: 20240229
DATE AS OF CHANGE: 20240229
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Mason Michael
CENTRAL INDEX KEY: 0001514291
ORGANIZATION NAME:
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-36167
FILM NUMBER: 24705418
MAIL ADDRESS:
STREET 1: 300 3RD STREET
CITY: CAMBRIDGE
STATE: MA
ZIP: 02142
ISSUER:
COMPANY DATA:
COMPANY CONFORMED NAME: Karyopharm Therapeutics Inc.
CENTRAL INDEX KEY: 0001503802
STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834]
ORGANIZATION NAME: 03 Life Sciences
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
ownership.xml
4
X0508
4
2024-02-27
0001503802
Karyopharm Therapeutics Inc.
KPTI
0001514291
Mason Michael
C/O KARYOPHARM THERAPEUTICS INC.
85 WELLS AVENUE
NEWTON
MA
02459
false
true
false
false
EVP, CFO & Treasurer
false
Common Stock
2024-02-27
4
S
false
2545
1.3238
D
244400
D
Common Stock
2024-02-28
4
A
false
188205
0.0
A
432605
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 ("RSUs"). The sale does not represent a discretionary trade by the reporting person.
Represents the award of RSUs pursuant to the Karyopharm Therapeutics Inc. 2022 Equity Incentive Plan, as amended. RSUs convert into Karyopharm Therapeutics Inc. common stock on a one-for-one basis. The RSUs vest in three equal annual installments beginning February 28, 2025.
/s/Nancy Smith as Attorney-in-Fact for Michael Mason
2024-02-29