Alector to Participate in Upcoming Healthcare Conferences

Alector, Inc. (Nasdaq: ALEC), a biotechnology company focused on developing therapies to counteract the devastating progression of neurodegenerative diseases, today announced that management will participate in the following upcoming investor conferences:

Cantor Global Healthcare Conference 2026 (New York, New York) Thursday, September 10, 2026, at 2:10 p.m. ET, fireside chat

Morgan Stanley 24th Annual Global Healthcare Conference (New York, New York) Tuesday, September 15, 2026, at 7:00 a.m. ET, fireside chat

A live webcast of each fireside chat will be available on the "Events & Presentations" page within the Investors section of the Alector website at http://investors.alector.com . Replays of the webcasts will be available on the Alector website for 90 days following the presentation dates.

About Alector

Alector is a biotechnology company focused on developing therapies to counteract the devastating progression of neurodegenerative diseases. Leveraging the principles of genetics, immunology, and neuroscience, the company is advancing a portfolio of programs that aim to remove toxic proteins, replace missing proteins, and restore immune and nerve cell function. Supported by biomarkers, Alector's product candidates seek to treat a range of indications, such as Alzheimer's disease and Parkinson's disease. The company is also developing Alector Brain Carrier (ABC), a proprietary blood-brain barrier platform, which is being applied to its preclinical and research pipeline. ABC aims to enhance the delivery of therapeutics, achieve deeper brain penetration and efficacy at lower doses, and ultimately improve patient outcomes while reducing costs. Alector is headquartered in South San Francisco, California. For more information, please visit www.alector.com.

Alector Contacts

Argot Partners (media) David Rosen 646-461-6387 alector@argotpartners.com

Argot Partners (investors) Laura Perry 212-600-1902 alector@argotpartners.com