On May 12, 2026 Karyopharm Therapeutics Inc. (Nasdaq: KPTI), a commercial-stage pharmaceutical company pioneering novel cancer therapies, reported that the Company’s senior management team will participate in the following investor conferences in May:

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H.C. Wainwright 4th Annual BioConnect Investor Conference
Format: Fireside chat
Date: Tuesday, May 19, 2026
Time: 9:00 a.m. ET

RBC 2026 Global Healthcare Conference
Format: Fireside chat
Date: Tuesday, May 19, 2026
Time: 3:35 p.m. ET

A live webcast of the fireside chats can be accessed under "Events & Presentations" in the Investor section of the Company’s website, View Source, and will be available for replay following the event.

(Press release, Karyopharm, MAY 12, 2026, View Source [SID1234665542])