On November 18, 2025 ALX Oncology Holdings Inc., ("ALX Oncology" or the "Company") (Nasdaq: ALXO), a clinical-stage biotechnology company advancing a pipeline of novel therapies designed to treat cancer and extend patients’ lives, reported that ALX Oncology leadership will participate in both the Jefferies Global Healthcare Conference in London and Piper Sandler 37th Annual Global Healthcare Conference in New York.

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The details of the meetings are as follows:

Jefferies Global Healthcare Conference in London

Format: Fireside Chat
Date: Wednesday, November 19, 2025
Time: 11:30 AM GMT / 6:30 AM EST
Location: London, UK
Webcast link: Available here

Piper Sandler 37th Annual Global Healthcare Conference

Format: Fireside Chat
Date: Wednesday, December 3, 2025
Time: 9:30 AM EST
Location: New York, NY
Webcast link: Available here

The webcasts of the Jefferies London and Piper Sandler fireside chats can be accessed by visiting the Investors section of ALX Oncology’s website at www.alxoncology.com under the Events section of the Events and Presentations tab. Replays of the webcasts will be archived for up to 90 days following the fireside chat dates.

(Press release, ALX Oncology, NOV 18, 2025, View Source [SID1234660049])