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Avoid the stress of overpaying for a stock or missing an opportunity by using the right tools and insights to evaluate Alector, Inc. before investing.

In this article, we go over a few key elements for understanding Alector, Inc.’s stock price such as:

Alector, Inc.’s current stock price and volume
Why Alector, Inc.’s stock price changed recently
Upgrades and downgrades for ALEC from analysts
ALEC’s stock price momentum as measured by its relative strength

About Alector, Inc. (ALEC)

Before we jump into Alector, Inc.’s stock price, history, target price and what caused it to recently rise, let’s take a look at some background.

Alector, Inc., a clinical stage biotechnology company, develops therapies to counteract the progression of neurodegeneration in the United States. Its pipeline includes Nivisnebart, an investigational human recombinant monoclonal antibody for treating prevalent neurodegenerative diseases; AL137, an anti-amyloid beta antibody paired in preclinical development for the potential treatment of Alzheimer’s disease; and AL050, a GCase enzyme replacement therapy in preclinical development for the potential treatment of Parkinson’s disease and Lewy body dementia in patients having GBA1 gene mutations. The company also develops its preclinical and research pipeline comprising AL064, a tau siRNA for Alzheimer’s disease and other tauopathies; ADP062-ABC, an alpha-synuclein siRNA for Parkinson’s disease; and ADP065-ABC, an NLRP3 siRNA for neurodegenerative conditions. It has a strategic collaboration agreement with GlaxoSmithKline plc for the development and commercialization of progranulin-elevating monoclonal antibodies, including Latozinemab and Nivisnebart. The company was founded in 2013 and is headquartered in South San Francisco, California.

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Alector, Inc.’s Stock Price as of Market Close

As of July 30, 2026, 9:45 AM, CST, Alector, Inc.’s stock price was $1.585.

Alector, Inc. is up 4.28% from its previous closing price of $1.520.

During the last market session, Alector, Inc.’s stock traded between $1.510 and $1.580. Currently, there are approximately 110.59 million shares outstanding for Alector, Inc..

Alector, Inc.’s trailing earnings per share are negative, so the stock does not have a meaningful P/E ratio. We suggest investors evaluate other financial metrics to understand its overall valuation.

Alector, Inc. Stock Price History

Alector, Inc.’s (ALEC) price is currently down 21.14% so far this month.

During the month of July, Alector, Inc.’s stock price has reached a high of $2.150 and a low of $1.370.

Over the last year, Alector, Inc. has hit prices as high as $3.400 and as low as $1.090. Year to date, Alector, Inc.’s stock is up 1.6%.

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What Caused Alector, Inc. Stock’s Price to Rise?

Stock prices are primarily based on seller supply and buyer demand. But have you ever wondered about what other factors affect a stock's price?

When an analyst changes their opinion of a stock by upgrading or downgrading their rating, it often leads to a sudden stock price adjustment. As of July 29, 2026, there were 0 analysts who downgraded Alector, Inc.’s stock and 1 analyst who upgraded over the last month.

Additionally, you'll want to evaluate Alector, Inc.’s financial health and valuation. Investors can use AAII's Value Grade, which combines six key valuation metrics like P/E and P/S ratios for a comprehensive analysis to conduct analysis on Alector, Inc.’s valuation and financial health. This approach mitigates the limitations of single-metric evaluations.

Alector, Inc.’s current valuation based on AAII’s Value Grade is a D, which means it is considered to be Expensive.

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Lastly, news and media coverage as well as recent press reports about the company or its industry may cause stock prices to fluctuate. You can check out the most recent news articles about Alector, Inc. (ALEC) by visiting AAII Stock Evaluator.

Relative Price Strength of Alector, Inc.

Relative price strength measures a stock's performance against the market, helping investors identify stocks that are outperforming benchmarks.

For AAII’s Momentum Grade, a weighted relative price strength is calculated. Follow this link to learn more about the Momentum Grade.

As of July 29, 2026, Alector, Inc. has a weighted four-quarter relative price strength of -8.31%, which translates to a Momentum Score of 26 and is considered to be Weak.

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Alector, Inc. Stock Price: Bottom Line

As of July 30, 2026, Alector, Inc.’s stock price is $1.585, which is up 4.28% from its previous closing price.

AAII advises against making stock decisions based solely on price or past returns. Instead, consider a variety of metrics, fundamentals, and analytics to evaluate a stock like Alector, Inc. stock prices are influenced by market supply and demand and offer just a snapshot of a company's overall health.

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