MetaCap

Alector Stock Price History

NASDAQ: ALECHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

2.08+0.06 (+2.97%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

ALEC price history at a glance

The price history for Alector (ALEC) on this page begins on February 4, 2019, when the stock closed at $16.30; it most recently closed at $2.08 on October 5, 2026. The highest price in this record is $43.32, reached on June 28, 2021; the latest close is 95.2% below that peak. Across the 6 complete calendar years in the table, ALEC finished higher in 1 and lower in 5. Its best year was 2021 (+36.5%) and its worst was 2024 (-74.2%).

Over roughly 8 years the share price changed -87.2%, a -23.6% compound annual price return (excluding dividends). In the last 12 months alone, ALEC has lost 33.8%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.

Summary generated from market data by MetaCap's automated system. Methodology

Key price levels

High since 2019
$43.32
Date of high
Jun 28, 2021
Low since 2019
$0.87
Date of low
Apr 7, 2025
52-week high
$3.40
52-week low
$1.09
IPO year
2019
Last close
$2.08

ALEC returns

1 week

+14.92%

1 month

-8.37%

3 months

+29.19%

6 months

-15.10%

Year to date

+33.33%

1 year

-33.76%

3 years

-65.33%

5 years

-91.07%

ALEC price return, excluding dividends.

ALEC annual returns

Calendar-year price returns
YearYear-end closeReturn
20262.08+35.95%
20251.53-25.73%
20242.06-74.19%
20237.98-13.54%
20229.23-55.30%
202120.65+36.48%
202015.13-6.89%
2019*16.25-0.31%

* Partial year: the record begins after the start of 2019; return measured from the first available close.

2026 return is year to date.

ALEC daily prices (past year)

Daily open, high, low, close and volume
DateOpenHighLowCloseChange
2.032.152.002.08+2.97%
1.902.061.882.02+5.21%
1.781.921.731.92+6.08%
2.082.231.751.81-9.05%
2.732.731.961.99+9.94%
1.891.971.801.81-2.69%
1.821.911.811.86+0.54%
1.881.951.831.85-1.07%
1.951.951.861.87-2.60%
1.921.961.861.92-1.54%
1.922.051.901.95+1.56%
2.022.051.911.92-4.95%
2.002.021.952.02+0.50%
1.972.041.932.01+4.15%
1.901.951.851.93+1.05%
1.851.911.791.91+3.24%
1.961.971.831.85-3.90%
2.062.061.911.93-5.41%
2.192.211.992.04-7.92%
2.152.232.102.21+3.27%
2.172.222.022.140.00%
2.222.242.002.14-5.73%
2.472.472.252.27-8.10%
2.382.612.332.47+0.41%
2.522.582.442.46-1.99%
2.702.752.442.51-7.72%
2.402.762.402.72+13.33%
2.242.492.222.40+6.19%
2.322.352.232.26-3.42%
2.392.442.322.34-2.09%
2.442.502.392.39-2.85%
2.382.522.262.46+4.24%
2.322.462.282.36+2.61%
2.362.472.292.30-2.54%
2.282.372.202.36+4.42%
2.402.462.192.26-7.00%
2.252.532.162.43+9.95%
2.042.302.042.21+7.80%
1.912.091.902.05+4.59%
2.042.071.951.96-3.92%
2.152.151.982.04-5.12%
2.062.182.022.15+2.87%
1.682.131.652.09+23.67%
1.771.781.601.69-5.06%
1.842.001.741.78-2.73%
1.492.041.481.83+22.82%
1.561.571.461.49-3.25%
1.511.611.511.54+1.99%
1.511.541.461.510.00%
1.621.621.491.51-6.79%
1.521.671.511.62+6.58%
1.511.571.491.520.00%
1.511.541.481.52+0.66%
1.491.581.471.51+2.03%
1.501.511.461.48-0.67%
1.481.551.471.49-2.61%
1.531.541.491.53-0.65%
1.421.551.421.54+7.69%
1.491.501.421.43-4.67%
1.431.521.421.50+2.04%
1.401.501.391.47-2.00%
1.391.531.371.50+7.91%
1.531.531.371.39-7.95%
1.601.611.501.51-6.21%
1.631.661.481.61-1.53%
1.831.861.601.64-10.66%
1.901.941.811.83-5.18%
1.971.971.861.93-0.52%
2.062.071.931.94-5.83%
2.022.152.002.06+2.49%
1.992.071.962.010.00%
2.102.141.982.01-3.37%
1.882.091.772.08+11.83%
1.841.961.841.86+0.54%
1.792.021.751.85+3.35%
1.781.871.781.79-2.19%
1.751.871.721.83+2.81%
1.761.921.721.78+1.71%
1.581.771.571.75+12.18%
1.551.601.531.56+1.30%
1.471.551.411.54+4.05%
1.561.601.461.48-3.27%
1.581.611.531.53-2.55%
1.521.741.491.57+3.29%
1.691.691.491.52-6.75%
1.641.681.591.63-0.61%
1.651.671.571.64+0.31%
1.811.841.631.64-9.67%
1.791.921.791.81+1.97%
1.941.941.711.78-8.97%
2.042.071.921.95-5.80%
2.162.162.072.07-4.17%
2.152.252.052.16+0.47%
2.212.242.102.15-2.71%
2.202.282.172.21+0.91%
2.212.322.122.19-0.90%
2.222.272.172.210.00%
2.112.242.012.21+4.25%
2.112.242.112.12+0.47%
2.102.162.022.11-0.47%
2.132.182.052.12-1.85%
2.242.292.142.16-6.09%
2.242.372.202.30+6.98%
2.122.212.092.15-0.46%
2.032.212.032.16+5.37%
2.102.202.012.05-2.38%
2.122.332.092.10-13.93%
2.562.562.412.44-5.06%
2.582.702.572.570.00%
2.542.622.532.57+2.39%
2.352.552.352.51+6.36%
2.332.392.292.36-0.42%
2.292.442.152.37+3.04%
2.362.382.272.30-3.77%
2.352.422.352.39+1.70%
2.412.472.332.35-2.49%
2.422.532.362.41-0.82%
2.522.522.382.43-0.82%
2.482.702.372.45-0.41%
2.702.732.452.46-9.06%
2.562.742.562.71+5.25%
2.622.622.492.57+0.78%
2.522.672.472.55-1.16%
2.532.612.502.58+7.05%
2.352.452.342.41+3.43%
2.442.442.282.33-4.90%
2.402.532.402.45+2.08%
2.382.422.342.40-0.83%
2.582.602.392.42-2.02%
2.342.492.302.47+5.33%
2.412.492.332.35-2.70%
2.452.522.132.41-4.74%
2.182.642.162.53+17.67%
2.032.192.032.15+6.44%
2.022.051.952.02+1.00%
2.092.151.982.00-5.66%
2.032.172.032.12-2.30%
2.122.222.122.17+4.33%
1.972.141.972.08+0.97%
2.112.162.042.06+0.49%
2.062.102.012.05-0.49%
2.002.111.962.06+0.49%
2.192.212.012.05-8.07%
2.222.282.172.23+0.90%
2.292.292.192.21+0.45%
2.242.332.142.20-1.35%
2.202.322.202.23-3.88%
2.352.382.212.32-2.52%
2.392.652.372.38+8.68%
1.942.211.942.19+9.50%
1.942.031.892.00+1.01%
2.152.151.941.98-7.91%
2.212.212.082.15+1.90%
2.172.172.062.11-4.52%
2.372.372.042.21-9.05%
2.512.532.322.43-5.08%
2.122.572.072.56+7.11%
2.202.432.192.39+9.13%
2.102.232.062.19+4.29%
1.982.121.932.10+5.53%
1.972.031.931.99-1.00%
1.982.041.942.01+1.52%
1.992.041.951.98+0.51%
1.882.001.861.97+5.35%
1.902.031.841.87-1.58%
1.931.981.881.90-1.04%
1.961.971.861.92-1.54%
1.981.981.891.95-0.51%
1.902.001.891.960.00%
1.831.961.831.96+7.69%
1.811.901.751.82-5.70%
1.961.981.871.930.00%
1.982.051.891.93-3.02%
1.872.031.841.99+5.29%
1.871.901.811.89-1.05%
1.931.941.901.910.00%
1.961.971.851.91-2.05%
1.951.981.911.95+1.04%
1.932.001.901.93-0.52%
1.891.941.881.94+1.04%
1.872.001.871.920.00%
1.821.931.811.92+4.92%
1.811.861.771.83-0.54%
1.801.981.781.84+1.10%
1.791.851.741.82-1.62%
1.921.931.841.85-3.65%
1.851.941.801.92+4.35%
1.841.851.711.84-1.08%
1.791.871.761.86+5.08%
1.701.791.691.77+0.57%
1.711.771.691.76+4.14%
1.581.711.561.69+5.62%
1.511.601.511.60+4.58%
1.571.621.501.53-1.92%
1.511.581.511.56+2.63%
1.521.541.491.520.00%
1.441.531.441.52+4.83%
1.441.481.401.450.00%
1.421.471.421.45+2.84%
1.421.471.401.41-2.76%
1.401.491.401.45+3.57%
1.371.451.351.40+0.72%
1.361.451.341.39+2.96%
1.391.421.341.35-2.88%
1.391.451.351.39-2.11%
1.521.521.421.42-4.70%
1.461.541.411.49+2.05%
1.311.541.291.46+12.31%
1.271.311.261.30+1.56%
1.221.291.181.28+4.92%
1.241.271.201.220.00%
1.211.261.191.22+0.83%
1.121.251.111.21+6.14%
1.141.161.091.140.00%
1.231.241.131.14-7.32%
1.301.321.221.23-7.52%
1.361.361.301.33-1.48%
1.271.391.271.35+5.47%
1.281.341.261.280.00%
1.261.301.261.28+3.23%
1.201.291.191.24+3.33%
1.261.351.191.20-1.64%
1.281.351.211.22-3.94%
1.241.331.211.27+2.42%
1.191.301.161.240.00%
1.231.301.211.24+3.33%
1.321.361.201.20-10.45%
1.341.441.301.34-1.47%
1.301.391.301.36+3.82%
1.271.411.261.31+2.34%
1.271.291.171.28-1.54%
1.251.341.221.30+3.59%
1.321.331.251.26-4.92%
1.401.441.291.32-8.33%
1.461.501.391.44-2.04%
1.521.561.401.47-3.29%
1.551.661.501.52-1.94%
1.511.681.491.55+3.33%
1.481.551.451.500.00%
1.541.601.501.500.00%
1.471.541.331.50+2.04%
1.611.681.461.47-8.70%
1.541.731.491.61-49.84%
3.223.273.093.21-3.02%
3.053.343.033.31+8.88%
3.163.333.033.04-5.59%
3.223.403.163.22+0.94%
2.903.232.883.19+6.69%
3.003.072.872.99-1.64%
3.003.072.913.04+0.66%
3.203.243.003.02-3.82%
3.083.233.063.14—

Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the ALEC chart for longer ranges.