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Here are 1-3 brief analogies for Alector:

• Like a startup Biogen, focused on antibody treatments for neurodegenerative diseases.
• Like Amgen or Genentech, but still in the clinical trial phase, developing antibody drugs for conditions like Alzheimer's.

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• AL001: A humanized recombinant monoclonal antibody in Phase III clinical trials for frontotemporal dementia, Alzheimer's, Parkinson's, and amyotrophic lateral sclerosis.
• AL101: A therapy in Phase I clinical trials for neurodegenerative diseases, including Alzheimer's and Parkinson's.
• AL002: A product candidate in Phase II clinical trials for Alzheimer's disease.
• AL003: A product candidate in Phase I clinical trials for Alzheimer's disease.
• AL044: A development-stage therapy targeting MS4A4A, a risk gene for Alzheimer's disease.

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Alector (ALEC) is a clinical-stage biopharmaceutical company. At this stage, its revenue primarily comes from collaboration agreements with larger pharmaceutical companies for research, development, and potential commercialization of its drug candidates. Therefore, its major "customers" or financial partners are other companies.

• GlaxoSmithKline plc (symbol: GSK)
• Adimab, LLC

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Adimab, LLC

GlaxoSmithKline plc (GSK)

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Arnon Rosenthal, Ph.D., Co-Founder, Chief Executive Officer, and Director

Dr. Rosenthal co-founded Alector in 2013 and has served as its Chief Executive Officer and a member of its Board of Directors since then. He previously co-founded Annexon Biosciences, Inc., where he served as acting Chief Executive Officer and later as Chairman. Dr. Rosenthal also co-founded Rinat Neuroscience Corporation, which discovered and developed the migraine drug Ajovy and was acquired by Pfizer Inc. in 2006. Before his entrepreneurial ventures, he held various roles at Genentech, Inc., ultimately serving as Staff Scientist, where his team discovered the target for the cancer drug Erivedge. He holds a Ph.D. in biology from the Hebrew University of Jerusalem.

Neil Berkley, M.B.A., Chief Financial Officer and Chief Business Officer

Mr. Berkley joined Alector in March 2024 as Chief Business Officer and assumed the role of Interim CFO in June 2025, with his current title listed as Chief Financial Officer and Chief Business Officer. Prior to Alector, he served as Chief Corporate Development Officer at Juvena Therapeutics, Chief Business Officer at AbCellera, and Vice President and Head of Business Development at Halozyme Therapeutics. His career also includes leadership roles at Cadence Pharmaceuticals, Acadia, and GSK. He holds a B.S. in Molecular Biology from the University of California, San Diego, and an M.S. and an M.B.A.

Giacomo Salvadore, M.D., Chief Medical Officer

Dr. Salvadore was appointed Chief Medical Officer effective April 25, 2025, having joined Alector in 2023 as Senior Vice President of Clinical Development. He leads Alector's global clinical development strategy for its late-stage clinical and research portfolios. Dr. Salvadore brings over 15 years of industry experience in leading clinical development for neurology and psychiatry programs.

Hua Long, PhD, DABT, Senior Vice President and Head of Research

Dr. Long leads Alector's research and preclinical organization. In this role, she oversees discovery, nonclinical science, and translational research to advance therapies for neurodegenerative diseases.

Danielle Pasqualone, Ph. D., J.D., General Counsel

Dr. Pasqualone joined Alector in 2019 as the Vice President of Intellectual Property and now serves as General Counsel. She is responsible for overseeing the company's legal function, directing global intellectual property strategy, and providing legal counsel on various transactions, including collaborations.

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The key risks for Alector (ALEC) are primarily related to the inherent challenges of being a clinical-stage biopharmaceutical company focused on neurodegenerative diseases.

1. Clinical Trial Failure and Regulatory Approval: As a clinical-stage company, Alector's success is entirely dependent on its product candidates successfully navigating and demonstrating safety and efficacy in ongoing and future clinical trials (Phase I, II, and III). A significant portion of drug candidates fail at various stages of clinical development, especially in late-stage trials, or fail to receive regulatory approval from health authorities, which would prevent the company from commercializing its therapies.
2. High Development Risk for Neurodegenerative Diseases: Alector's pipeline is focused on neurodegenerative diseases such as Frontotemporal Dementia, Alzheimer's, Parkinson's, and Amyotrophic Lateral Sclerosis. Historically, drug development for these complex neurological conditions has a high rate of failure, presenting significant challenges in demonstrating clinical benefit and safety.
3. Reliance on Strategic Collaborations: Alector has strategic collaboration agreements, notably with GlaxoSmithKline plc for the development and commercialization of key monoclonal antibodies like AL001 and AL101. The success of these programs, and potentially the company's financial stability, could be impacted by the ongoing commitment, resources, or strategic direction of its partners, or by the termination of such agreements.

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Addressable Markets for Alector's Main Products

• Frontotemporal Dementia (FTD): The global market for frontotemporal dementia is projected to increase from $3.25 billion in 2025 to $3.53 billion in 2026, growing at a compound annual growth rate (CAGR) of 8.8%. It is expected to reach $4.99 billion by 2030.
• Alzheimer's Disease: The global Alzheimer's disease market is estimated at $12.4 billion in 2025 and is projected to reach $29.4 billion by 2035, representing a CAGR of 9%.
• Parkinson's Disease: The global Parkinson's disease drugs market size is projected to grow from $7.75 billion in 2025 to $15.77 billion by 2034, at a CAGR of 8.22%.
• Amyotrophic Lateral Sclerosis (ALS): The global Amyotrophic Lateral Sclerosis market is estimated to be valued at $835.8 million in 2025 and is projected to reach $1496.9 million by 2035, with a compound annual growth rate (CAGR) of 6.0%.

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Expected Drivers of Future Revenue Growth for Alector (ALEC)

Over the next two to three years, Alector's future revenue growth is anticipated to be driven by the following key factors:

1. Advancement and Potential Commercialization of AL101 (Nivisnebart): The progression of AL101, developed in collaboration with GlaxoSmithKline (GSK), through its ongoing Phase 2 PROGRESS-AD clinical trial for early Alzheimer's disease is a significant driver. Positive results from the interim futility analysis expected in the first half of 2026 and subsequent advancement into later-stage clinical development could trigger substantial milestone payments from GSK and pave the way for future product revenue upon commercialization.
2. Development and Clinical Entry of Alector Brain Carrier (ABC) Platform Programs: Alector's proprietary Alector Brain Carrier (ABC) platform, designed to enhance the delivery of therapeutics across the blood-brain barrier, represents a strategic focus for future growth. The planned Investigational New Drug (IND) submissions for lead ABC-enabled candidates, such as AL137 for Alzheimer's disease in late 2026-early 2027 and AL050 for Parkinson's disease in 2027, are expected to generate future milestone payments or lead to new collaboration agreements.
3. Milestone Payments from the Strategic Collaboration with GlaxoSmithKline (GSK): The existing strategic collaboration agreement with GSK provides a framework for significant potential revenue. This includes up to $1.5 billion in clinical development, regulatory, and commercial launch-related milestone payments for partnered programs. The continued progression of AL101 within this collaboration is crucial for realizing these milestone payments.

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Share Issuance

• In January 2024, Alector completed an underwritten public offering of 10,869,566 shares of its common stock, generating gross proceeds of $75 million.
• In January 2020, Alector completed an upsized underwritten public offering of 8,350,000 shares of common stock at $25.00 per share, resulting in gross proceeds of $208,750,000.

Inbound Investments

• In July 2021, Alector entered a strategic global collaboration with GlaxoSmithKline (GSK) for the development and commercialization of AL001 and AL101. As part of this agreement, Alector received $700 million in upfront payments and is eligible for up to an additional $1.5 billion in potential milestone payments.
• In November 2024, Alector secured a $50 million credit facility from Hercules Capital to boost its financial flexibility and advance its pipeline.

Capital Expenditures

• Alector reported capital expenditures of -$1 (likely referring to $1 million, given the context of other financial figures in millions) in a recent financial summary.
• Research and development expenses for the full year 2025 were $123.1 million, a decrease from $185.9 million in 2024, reflecting a significant portion of capital deployed towards its drug pipeline.
• The primary focus of ongoing capital deployment and R&D is the Alector Brain Carrier (ABC) platform and its lead candidates, AL137 and AL050, targeting Investigational New Drug (IND) submissions in 2026 and 2027, respectively.