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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of report (Date of earliest event reported): September 5, 2025
Karyopharm Therapeutics Inc.
(Exact Name of Registrant as Specified in Charter)
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Delaware |
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001-36167 |
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26-3931704 |
(State or Other Jurisdiction of Incorporation) |
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(Commission File Number) |
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(IRS Employer Identification No.) |
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85 Wells Avenue, 2nd Floor Newton, Massachusetts |
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02459 |
(Address of Principal Executive Offices) |
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(Zip Code) |
Registrant’s telephone number, including area code: (617) 658-0600
(Former Name or Former Address, if Changed Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
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☐ |
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
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Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
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Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
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Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |
Securities registered pursuant to Section 12(b) of the Act:
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Title of each class |
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Trading Symbol(s) |
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Name of each exchange on which registered |
Common Stock, $0.0001 par value |
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KPTI |
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Nasdaq Global Select Market |
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
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Emerging growth company |
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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
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Item 5.02 |
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. |
On September 5, 2025, Mansoor Raza Mirza, M.D., a member of the Board of Directors (the “Board”) of Karyopharm Therapeutics Inc. (the “Company”), notified the Company of his resignation from the Board, effective as of September 8, 2025. Dr. Mirza’s resignation is due to competing professional demands and not the result of any disagreement with the Company on any matter relating to the Company’s operations, policies or practices. Dr. Mirza is also resigning from his position as Chief Oncologist at Copenhagen University National Medical Center, effective October 1, 2025, to focus his professional efforts on his new executive role in industry. In connection with Dr. Mirza's resignation, the consulting agreement between the Company and Mirza Consulting, an entity wholly-owned by Dr. Mirza, for consulting and advisory services provided to the Company by Dr. Mirza was terminated effective as of September 8, 2025.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
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KARYOPHARM THERAPEUTICS INC. |
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Date: September 11, 2025 |
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By: |
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/s/ Michael Mano |
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Michael Mano |
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Senior Vice President, General Counsel and Secretary |
