CompaniesByCap
ALEC
Alector Inc. (ALEC)
NASDAQ · Healthcare

Alector Inc. Stock Price History 2020–2025

Alector Inc.
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Historical daily closing price for Alector Inc. since 2019, adjusted for splits and dividends. The latest closing stock price for Alector Inc. as of June 10, 2026 is 1.52.

  • The all-time high Alector Inc. stock closing price was 39.49 on July 7, 2021.
  • The Alector Inc. 52-week high stock price is 3.32, which is 118.4% above the current share price.
  • The Alector Inc. 52-week low stock price is 1.14, which is 25.0% below the current share price.
  • The average Alector Inc. stock price for the last 52 weeks is 2.02.
Annual Close Price
YEAR-END CLOSE · USD
ANNUAL % CHANGE · %
YearAverageYear OpenYear HighYear LowYear CloseAnnual % Change
20262.121.532.711.521.52-2.56%
20251.721.893.320.901.56-17.46%
20245.197.998.081.721.89-76.32%
20236.879.109.843.777.98-13.54%
202211.3220.7820.786.889.23-55.30%
202121.8914.9839.4914.8420.65+36.48%
202020.3616.5735.289.4015.13-12.19%
201918.5218.0826.4214.1717.23

Alector Inc. Stock Price History — FAQ

Alector Inc. (ALEC) stock price history over the last 6 years — annual and quarterly figures with year-over-year growth and charts.

Where can I see ALEC's stock price history history?

The chart and table above show Alector Inc.'s stock price history by year and by quarter, including the growth rate.