0001209191-23-014843.txt : 20230302
0001209191-23-014843.hdr.sgml : 20230302
20230302173012
ACCESSION NUMBER: 0001209191-23-014843
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20230228
FILED AS OF DATE: 20230302
DATE AS OF CHANGE: 20230302
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Mason Michael
CENTRAL INDEX KEY: 0001514291
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-36167
FILM NUMBER: 23700466
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]
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
X0306
4
2023-02-28
0
0001503802
Karyopharm Therapeutics Inc.
KPTI
0001514291
Mason Michael
C/O KARYOPHARM THERAPEUTICS INC.
85 WELLS AVENUE
NEWTON
MA
02459
0
1
0
0
EVP, CFO & Treasurer
Common Stock
2023-02-28
4
A
0
95000
0.00
A
256566
D
Common Stock
2023-03-01
4
S
0
11205
3.0292
D
245361
D
Represents the award of restricted stock units ("RSUs") pursuant to the Karyopharm Therapeutics Inc. 2022 Equity Incentive Plan. 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, 2024.
This transaction was a broker-assisted sale of shares to satisfy the payment of withholding tax liability incurred upon the vesting of restricted stock units and does not represent a discretionary trade by the reporting person.
/s/Nancy Smith as Attorney-in-Fact for Michael Mason
2023-03-02