Karyopharm Therapeutics Reports Inducement Grant Under Nasdaq Listing Rule 5635(c)(4)

Karyopharm Therapeutics Reports Inducement Grant Under Nasdaq Listing Rule 5635(c)(4)

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, / PRNewswire / -- Karyopharm Therapeutics Inc. (Nasdaq: KPTI), a commercial-stage pharmaceutical company pioneering novel cancer therapies, today announced that the Company granted 333 restricted stock units (RSUs) to one newly-hired employee. This RSU award was granted as of July 31, 2026 (the "Grant Date") pursuant to the Company's 2022 Inducement Stock Incentive Plan, as amended, as an inducement material to the new employee entering into employment with Karyopharm in accordance with Nasdaq Listing Rule 5635(c)(4).

The RSU award will vest over three years, with 33 1/3% of the shares underlying the RSU award vesting on each of the three consecutive anniversaries of the Grant Date. The vesting of the RSU award is subject to the employee's continued service as an employee of, or other service provider to, Karyopharm through the applicable vesting dates.

About Karyopharm Therapeutics

Karyopharm Therapeutics is a commercial-stage pharmaceutical company pioneering the science of nuclear export inhibition to develop differentiated therapies for patients with cancer. The Company's lead therapy, XPOVIO ® (selinexor), is a first-in-class inhibitor of exportin 1 (XPO1). XPOVIO is marketed by the Company in the U.S. for adults with relapsed or refractory multiple myeloma and is approved as XPOVIO or NEXPOVIO ® in more than 50 ex-U.S. countries and territories. Building on its leadership in XPO1 biology, Karyopharm is advancing selinexor's potential in hematological cancers, including in myelofibrosis. The Company is also exploring opportunities to evaluate XPO1 inhibition across myeloproliferative neoplasms using next-generation compounds, including eltanexor. Headquartered in Newton, Massachusetts, Karyopharm has an established, efficient, and scalable commercial infrastructure to bring novel therapeutic options to patients with cancer. For more information, visit www.karyopharm.com and follow Karyopharm on LinkedIn and on X at @Karyopharm.

XPOVIO ® and NEXPOVIO ® are registered trademarks of Karyopharm Therapeutics Inc.

SOURCE Karyopharm Therapeutics Inc.

For further information: CONTACTS: Investors: Brendan Strong, Senior Vice President, Investor Relations, 617.762.2661, [email protected]; Media: Mary Ann Ondish, Head of Corporate Communications, 914.552.4625, [email protected]