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): May 14, 2026
Karyopharm Therapeutics Inc.
(Exact Name of Registrant as Specified in Charter)
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Delaware |
| 001-36167 |
| 26-3931704 | ||
(State or Other Jurisdiction of Incorporation) |
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85 Wells Avenue, 2nd Floor Newton, Massachusetts |
| 02459 | ||||
(Address of Principal Executive Offices) |
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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):
☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
☐ | 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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Common Stock, $0.0001 par value |
| KPTI |
| 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. ☐
Item 2.02 | Results of Operations and Financial Condition. |
On May 14, 2026, Karyopharm Therapeutics Inc. announced its financial results for the quarter ended March 31, 2026 and that it will conduct a previously announced, publicly available conference call to discuss those results and other company updates. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
The information provided under this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.
Item 9.01 | Financial Statements and Exhibits. |
(d) Exhibits
Exhibit 99.1 relating to Item 2.02 shall be deemed to be furnished, and not filed:
Exhibit No. |
| Description |
99.1 |
| Press Release issued by Karyopharm Therapeutics Inc. on May 14, 2026 |
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104 |
| Cover Page Interactive Data File (formatted as Inline XBRL) |
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: May 14, 2026 |
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| By: |
| /s/ Michael Mano |
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| Michael Mano |
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| Executive Vice President, Chief Legal Officer and Secretary |