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US · ALEC

Alector, Inc.

Programmatic access: InvestorsCraft Valuation API · catalog

Sector
Healthcare · Biotechnology
Headquarters
South San Francisco, CA 94080

Price · as of 2026-09-04

$2.46

Market cap 165.43M

Price history

Weekly OHLC price history for ALEC, USD per share
WeekOpenHighLowCloseVolume
Feb 4, 2019 – Feb 8, 2019$18.78$19.59$15.55$16.300
Feb 11, 2019 – Feb 15, 2019$16.23$20.38$16.16$19.780
Feb 18, 2019 – Feb 22, 2019$19.75$23.60$18.94$22.500
Feb 25, 2019 – Mar 1, 2019$22.85$23.84$19.25$21.000
Mar 4, 2019 – Mar 8, 2019$21.69$23.50$16.17$16.610
Mar 11, 2019 – Mar 15, 2019$16.79$18.35$15.16$18.050
Mar 18, 2019 – Mar 22, 2019$17.97$19.84$17.40$18.050
Mar 25, 2019 – Mar 29, 2019$18.16$20.00$17.55$18.720
Apr 1, 2019 – Apr 5, 2019$18.90$25.10$18.75$24.060
Apr 8, 2019 – Apr 12, 2019$24.00$27.00$22.42$26.420
Apr 15, 2019 – Apr 18, 2019$26.25$26.40$20.88$22.470
Apr 22, 2019 – Apr 26, 2019$22.34$22.50$20.63$21.360
Apr 29, 2019 – May 3, 2019$21.44$21.76$19.35$19.890
May 6, 2019 – May 10, 2019$19.58$20.90$18.27$20.050
May 13, 2019 – May 17, 2019$19.68$23.14$18.54$20.310
May 20, 2019 – May 24, 2019$19.92$20.44$18.51$19.500
May 27, 2019 – May 31, 2019$19.59$19.98$16.00$16.910
Jun 3, 2019 – Jun 7, 2019$16.89$17.49$15.78$17.350
Jun 10, 2019 – Jun 14, 2019$17.65$21.22$17.55$20.160
Jun 17, 2019 – Jun 21, 2019$20.15$20.99$17.67$18.200
Jun 24, 2019 – Jun 28, 2019$18.26$19.61$17.37$19.000
Jul 1, 2019 – Jul 5, 2019$19.34$19.88$18.22$19.060
Jul 8, 2019 – Jul 12, 2019$19.06$19.76$18.29$18.520
Jul 15, 2019 – Jul 19, 2019$18.81$19.55$18.09$18.840
Jul 22, 2019 – Jul 26, 2019$18.80$22.25$18.48$20.990
Jul 29, 2019 – Aug 2, 2019$21.51$22.41$19.67$19.900
Aug 5, 2019 – Aug 9, 2019$20.00$20.36$17.15$18.100
Aug 12, 2019 – Aug 16, 2019$18.25$18.92$13.64$14.850
Aug 19, 2019 – Aug 23, 2019$15.00$16.23$14.71$15.000
Aug 26, 2019 – Aug 30, 2019$15.20$16.87$15.01$16.460
Sep 2, 2019 – Sep 6, 2019$16.43$16.95$14.97$16.540
Sep 9, 2019 – Sep 13, 2019$16.54$19.97$16.17$18.990
Sep 16, 2019 – Sep 20, 2019$19.03$20.00$18.40$19.920
Sep 23, 2019 – Sep 27, 2019$20.00$20.00$14.76$15.020
Sep 30, 2019 – Oct 4, 2019$14.98$15.12$13.71$14.510
Oct 7, 2019 – Oct 11, 2019$14.52$15.34$14.00$15.020
Oct 14, 2019 – Oct 18, 2019$15.00$15.48$13.99$14.390
Oct 21, 2019 – Oct 25, 2019$14.52$16.79$14.25$16.000
Oct 28, 2019 – Nov 1, 2019$16.19$17.66$15.57$16.840
Nov 4, 2019 – Nov 8, 2019$17.00$18.06$16.45$17.110
Nov 11, 2019 – Nov 15, 2019$17.02$17.14$15.33$15.980
Nov 18, 2019 – Nov 22, 2019$16.05$16.37$14.92$15.840
Nov 25, 2019 – Nov 29, 2019$15.99$19.46$15.70$18.640
Dec 2, 2019 – Dec 6, 2019$18.61$20.12$17.88$19.760
Dec 9, 2019 – Dec 13, 2019$20.41$21.00$18.83$20.210
Dec 16, 2019 – Dec 20, 2019$20.36$21.03$18.82$19.500
Dec 23, 2019 – Dec 27, 2019$19.64$20.33$16.92$17.600
Dec 30, 2019 – Jan 3, 2020$17.66$17.66$16.02$16.250
Jan 6, 2020 – Jan 10, 2020$15.99$20.00$15.64$18.530
Jan 13, 2020 – Jan 17, 2020$18.53$21.84$17.17$21.380
Jan 20, 2020 – Jan 24, 2020$21.20$25.45$20.99$24.550
Jan 27, 2020 – Jan 31, 2020$24.77$28.75$23.77$27.940
Feb 3, 2020 – Feb 7, 2020$27.81$35.93$27.59$35.280
Feb 10, 2020 – Feb 14, 2020$35.49$35.67$28.05$30.000
Feb 17, 2020 – Feb 21, 2020$29.88$31.46$28.65$30.470
Feb 24, 2020 – Feb 28, 2020$29.46$30.40$24.25$27.480
Mar 2, 2020 – Mar 6, 2020$27.46$31.99$26.18$29.100
Mar 9, 2020 – Mar 13, 2020$26.91$27.74$20.97$24.730
Mar 16, 2020 – Mar 20, 2020$21.29$30.35$20.65$29.310
Mar 23, 2020 – Mar 27, 2020$29.57$30.38$22.30$22.760
Mar 30, 2020 – Apr 3, 2020$23.19$25.11$21.26$21.900
Apr 6, 2020 – Apr 9, 2020$23.00$24.45$22.41$23.300
Apr 13, 2020 – Apr 17, 2020$23.99$24.47$21.81$24.280
Apr 20, 2020 – Apr 24, 2020$24.13$26.00$23.20$25.320
Apr 27, 2020 – May 1, 2020$25.78$28.37$23.01$24.180
May 4, 2020 – May 8, 2020$23.94$28.61$23.61$27.240
May 11, 2020 – May 15, 2020$27.00$30.57$25.53$27.700
May 18, 2020 – May 22, 2020$28.59$34.24$27.53$33.100
May 25, 2020 – May 29, 2020$34.69$34.89$30.01$32.700
Jun 1, 2020 – Jun 5, 2020$32.43$33.67$29.89$29.990
Jun 8, 2020 – Jun 12, 2020$29.96$32.17$28.50$29.280
Jun 15, 2020 – Jun 19, 2020$28.58$32.99$28.58$30.580
Jun 22, 2020 – Jun 26, 2020$30.55$33.82$23.35$24.290
Jun 29, 2020 – Jul 2, 2020$24.40$25.73$23.10$23.810
Jul 6, 2020 – Jul 10, 2020$22.76$25.20$21.31$23.300
Jul 13, 2020 – Jul 17, 2020$23.67$24.24$21.65$23.510
Jul 20, 2020 – Jul 24, 2020$23.61$25.00$21.22$22.180
Jul 27, 2020 – Jul 31, 2020$22.93$23.76$14.70$15.670
Aug 3, 2020 – Aug 7, 2020$16.00$16.06$14.06$14.850
Aug 10, 2020 – Aug 14, 2020$15.01$15.16$13.12$13.450
Aug 17, 2020 – Aug 21, 2020$13.90$14.20$12.22$12.340
Aug 24, 2020 – Aug 28, 2020$12.45$13.59$12.16$12.750
Aug 31, 2020 – Sep 4, 2020$12.81$13.15$11.94$12.410
Sep 7, 2020 – Sep 11, 2020$12.21$13.19$12.02$13.000
Sep 14, 2020 – Sep 18, 2020$13.16$14.62$13.16$14.070
Sep 21, 2020 – Sep 25, 2020$13.81$13.90$10.75$11.290
Sep 28, 2020 – Oct 2, 2020$11.50$11.56$9.98$10.120
Oct 5, 2020 – Oct 9, 2020$10.30$11.00$10.03$10.120
Oct 12, 2020 – Oct 16, 2020$10.21$10.83$9.52$10.290
Oct 19, 2020 – Oct 23, 2020$10.34$10.45$9.21$9.490
Oct 26, 2020 – Oct 30, 2020$9.44$10.21$9.12$9.410
Nov 2, 2020 – Nov 6, 2020$9.51$11.62$9.42$11.370
Nov 9, 2020 – Nov 13, 2020$11.60$13.14$11.54$12.870
Nov 16, 2020 – Nov 20, 2020$13.00$13.43$12.02$12.630
Nov 23, 2020 – Nov 27, 2020$12.84$13.49$12.80$13.290
Nov 30, 2020 – Dec 4, 2020$13.45$14.61$13.00$14.550
Dec 7, 2020 – Dec 11, 2020$14.56$15.44$13.91$14.470
Dec 14, 2020 – Dec 18, 2020$14.69$16.21$14.62$15.780
Dec 21, 2020 – Dec 24, 2020$15.60$17.31$14.86$15.340
Dec 28, 2020 – Dec 31, 2020$15.51$16.20$14.38$15.130
Jan 4, 2021 – Jan 8, 2021$15.23$16.09$14.66$15.400
Jan 11, 2021 – Jan 15, 2021$15.33$17.11$14.93$16.870
Jan 18, 2021 – Jan 22, 2021$17.12$18.59$15.71$16.590
Jan 25, 2021 – Jan 29, 2021$17.20$18.38$16.40$16.840
Feb 1, 2021 – Feb 5, 2021$17.45$20.97$16.91$20.760
Feb 8, 2021 – Feb 12, 2021$21.00$21.32$19.93$21.050
Feb 15, 2021 – Feb 19, 2021$21.45$21.45$17.31$17.690
Feb 22, 2021 – Feb 26, 2021$17.56$19.73$16.04$18.180
Mar 1, 2021 – Mar 5, 2021$18.54$18.95$15.10$17.070
Mar 8, 2021 – Mar 12, 2021$17.18$19.15$16.82$19.030
Mar 15, 2021 – Mar 19, 2021$18.95$21.69$17.90$21.020
Mar 22, 2021 – Mar 26, 2021$22.75$23.99$15.13$16.350
Mar 29, 2021 – Apr 1, 2021$16.49$20.45$16.36$20.000
Apr 5, 2021 – Apr 9, 2021$20.03$20.07$17.08$17.370
Apr 12, 2021 – Apr 16, 2021$17.43$18.86$16.75$17.800
Apr 19, 2021 – Apr 23, 2021$17.57$19.33$17.36$18.760
Apr 26, 2021 – Apr 30, 2021$18.87$19.68$18.20$19.500
May 3, 2021 – May 7, 2021$19.60$19.75$15.63$16.350
May 10, 2021 – May 14, 2021$16.17$17.23$15.04$17.000
May 17, 2021 – May 21, 2021$16.91$18.37$16.25$18.140
May 24, 2021 – May 28, 2021$18.20$18.74$17.40$17.800
May 31, 2021 – Jun 4, 2021$18.02$20.25$17.62$19.540
Jun 7, 2021 – Jun 11, 2021$19.50$21.69$18.59$19.620
Jun 14, 2021 – Jun 18, 2021$20.21$23.42$19.63$21.230
Jun 21, 2021 – Jun 25, 2021$21.50$22.72$20.15$21.270
Jun 28, 2021 – Jul 2, 2021$21.64$43.32$20.37$35.210
Jul 5, 2021 – Jul 9, 2021$34.37$40.39$34.32$36.910
Jul 12, 2021 – Jul 16, 2021$36.28$39.22$32.90$33.110
Jul 19, 2021 – Jul 23, 2021$32.83$33.53$29.68$32.770
Jul 26, 2021 – Jul 30, 2021$33.61$35.14$23.32$24.040
Aug 2, 2021 – Aug 6, 2021$24.63$28.80$24.35$27.620
Aug 9, 2021 – Aug 13, 2021$27.49$29.22$26.03$28.320
Aug 16, 2021 – Aug 20, 2021$28.30$28.60$24.46$24.510
Aug 23, 2021 – Aug 27, 2021$24.89$27.72$24.40$27.210
Aug 30, 2021 – Sep 3, 2021$27.13$29.30$26.06$26.640
Sep 6, 2021 – Sep 10, 2021$26.24$27.42$21.04$22.760
Sep 13, 2021 – Sep 17, 2021$23.09$27.05$22.77$26.810
Sep 20, 2021 – Sep 24, 2021$25.63$26.64$23.34$23.600
Sep 27, 2021 – Oct 1, 2021$24.10$25.08$22.46$23.700
Oct 4, 2021 – Oct 8, 2021$23.80$24.60$22.76$23.400
Oct 11, 2021 – Oct 15, 2021$23.40$25.00$23.10$23.300
Oct 18, 2021 – Oct 22, 2021$23.30$24.00$22.47$23.610
Oct 25, 2021 – Oct 29, 2021$23.47$23.82$21.25$21.740
Nov 1, 2021 – Nov 5, 2021$21.51$27.00$21.29$25.100
Nov 8, 2021 – Nov 12, 2021$25.04$26.24$22.53$23.180
Nov 15, 2021 – Nov 19, 2021$23.40$23.59$21.04$21.390
Nov 22, 2021 – Nov 26, 2021$21.36$21.92$19.60$19.920
Nov 29, 2021 – Dec 3, 2021$20.36$21.35$18.61$19.450
Dec 6, 2021 – Dec 10, 2021$19.22$23.44$19.02$21.570
Dec 13, 2021 – Dec 17, 2021$21.40$23.44$20.20$22.830
Dec 20, 2021 – Dec 23, 2021$22.34$23.87$21.66$23.720
Dec 27, 2021 – Dec 31, 2021$24.01$24.01$20.55$20.650
Jan 3, 2022 – Jan 7, 2022$20.71$21.26$17.75$17.910
Jan 10, 2022 – Jan 14, 2022$17.84$18.85$16.51$17.510
Jan 17, 2022 – Jan 21, 2022$17.03$17.15$15.36$15.540
Jan 24, 2022 – Jan 28, 2022$15.25$16.12$13.74$14.680
Jan 31, 2022 – Feb 4, 2022$14.60$16.16$14.52$15.710
Feb 7, 2022 – Feb 11, 2022$15.72$17.68$15.47$16.290
Feb 14, 2022 – Feb 18, 2022$16.29$17.29$15.75$16.360
Feb 21, 2022 – Feb 25, 2022$16.19$17.29$15.02$16.000
Feb 28, 2022 – Mar 4, 2022$16.00$16.42$14.70$14.840
Mar 7, 2022 – Mar 11, 2022$14.84$15.51$11.41$13.990
Mar 14, 2022 – Mar 18, 2022$14.05$15.72$12.84$15.540
Mar 21, 2022 – Mar 25, 2022$15.57$15.57$14.39$14.480
Mar 28, 2022 – Apr 1, 2022$14.53$15.39$14.00$14.070
Apr 4, 2022 – Apr 8, 2022$14.22$14.63$13.00$13.130
Apr 11, 2022 – Apr 14, 2022$12.89$13.01$11.21$11.470
Apr 18, 2022 – Apr 22, 2022$11.48$11.72$10.43$10.490
Apr 25, 2022 – Apr 29, 2022$10.39$10.66$9.54$9.600
May 2, 2022 – May 6, 2022$9.57$10.41$8.82$8.900
May 9, 2022 – May 13, 2022$8.75$8.92$7.50$8.620
May 16, 2022 – May 20, 2022$8.55$9.41$8.46$9.320
May 23, 2022 – May 27, 2022$9.37$9.48$8.51$9.200
May 30, 2022 – Jun 3, 2022$9.14$9.25$8.42$8.990
Jun 6, 2022 – Jun 10, 2022$9.13$9.63$8.35$8.380
Jun 13, 2022 – Jun 17, 2022$8.03$8.74$7.54$8.530
Jun 20, 2022 – Jun 24, 2022$8.71$10.87$8.68$10.730
Jun 27, 2022 – Jul 1, 2022$10.75$11.08$9.84$11.020
Jul 4, 2022 – Jul 8, 2022$10.93$12.05$10.73$11.370
Jul 11, 2022 – Jul 15, 2022$11.17$11.76$10.07$11.060
Jul 18, 2022 – Jul 22, 2022$11.35$12.25$10.61$10.950
Jul 25, 2022 – Jul 29, 2022$10.94$11.19$9.97$10.220
Aug 1, 2022 – Aug 5, 2022$10.15$13.17$9.99$13.060
Aug 8, 2022 – Aug 12, 2022$13.17$13.50$12.45$13.200
Aug 15, 2022 – Aug 19, 2022$13.28$13.29$11.38$11.610
Aug 22, 2022 – Aug 26, 2022$11.40$11.77$10.75$10.820
Aug 29, 2022 – Sep 2, 2022$10.68$10.99$10.04$10.460
Sep 5, 2022 – Sep 9, 2022$10.44$11.07$9.55$9.630
Sep 12, 2022 – Sep 16, 2022$9.63$10.18$9.04$9.230
Sep 19, 2022 – Sep 23, 2022$9.23$9.60$8.20$8.430
Sep 26, 2022 – Sep 30, 2022$8.37$10.07$8.15$9.460
Oct 3, 2022 – Oct 7, 2022$9.76$9.76$8.65$8.680
Oct 10, 2022 – Oct 14, 2022$8.70$9.18$8.41$8.540
Oct 17, 2022 – Oct 21, 2022$8.74$9.51$8.63$8.880
Oct 24, 2022 – Oct 28, 2022$8.87$9.58$8.46$9.520
Oct 31, 2022 – Nov 4, 2022$9.35$9.60$7.90$8.280
Nov 7, 2022 – Nov 11, 2022$8.35$8.85$6.85$8.690
Nov 14, 2022 – Nov 18, 2022$8.50$8.97$7.50$7.770
Nov 21, 2022 – Nov 25, 2022$7.77$7.99$7.29$7.750
Nov 28, 2022 – Dec 2, 2022$7.67$9.16$7.33$9.100
Dec 5, 2022 – Dec 9, 2022$8.97$9.61$8.02$8.640
Dec 12, 2022 – Dec 16, 2022$8.72$9.49$8.50$9.070
Dec 19, 2022 – Dec 23, 2022$9.10$9.12$8.55$8.840
Dec 26, 2022 – Dec 30, 2022$8.75$9.59$8.69$9.230
Jan 2, 2023 – Jan 6, 2023$9.31$9.48$7.99$8.250
Jan 9, 2023 – Jan 13, 2023$8.45$8.96$7.98$8.720
Jan 16, 2023 – Jan 20, 2023$8.75$8.85$7.95$8.400
Jan 23, 2023 – Jan 27, 2023$8.40$9.28$8.15$9.160
Jan 30, 2023 – Feb 3, 2023$9.07$9.74$8.61$9.490
Feb 6, 2023 – Feb 10, 2023$9.45$9.78$9.27$9.430
Feb 13, 2023 – Feb 17, 2023$9.41$9.86$9.19$9.840
Feb 20, 2023 – Feb 24, 2023$9.62$9.82$8.68$8.760
Feb 27, 2023 – Mar 3, 2023$8.88$9.13$7.75$7.890
Mar 6, 2023 – Mar 10, 2023$7.90$7.90$6.18$6.470
Mar 13, 2023 – Mar 17, 2023$6.37$7.02$6.02$6.320
Mar 20, 2023 – Mar 24, 2023$6.29$6.60$5.76$6.180
Mar 27, 2023 – Mar 31, 2023$6.15$6.58$6.05$6.190
Apr 3, 2023 – Apr 6, 2023$6.22$6.39$5.91$6.240
Apr 10, 2023 – Apr 14, 2023$6.26$6.69$6.11$6.460
Apr 17, 2023 – Apr 21, 2023$6.54$6.91$6.36$6.650
Apr 24, 2023 – Apr 28, 2023$6.60$6.91$6.23$6.600
May 1, 2023 – May 5, 2023$6.55$7.47$6.37$7.410
May 8, 2023 – May 12, 2023$7.46$8.04$7.12$7.350
May 15, 2023 – May 19, 2023$7.36$7.97$7.28$7.590
May 22, 2023 – May 26, 2023$7.58$8.00$7.33$7.590
May 29, 2023 – Jun 2, 2023$7.57$7.78$6.66$7.120
Jun 5, 2023 – Jun 9, 2023$7.04$7.72$6.93$7.280
Jun 12, 2023 – Jun 16, 2023$7.30$7.84$7.25$7.470
Jun 19, 2023 – Jun 23, 2023$7.45$7.46$6.99$7.180
Jun 26, 2023 – Jun 30, 2023$7.11$7.11$5.65$6.010
Jul 3, 2023 – Jul 7, 2023$5.99$6.26$5.89$6.160
Jul 10, 2023 – Jul 14, 2023$6.17$6.65$6.13$6.480
Jul 17, 2023 – Jul 21, 2023$6.55$7.21$6.42$6.680
Jul 24, 2023 – Jul 28, 2023$6.68$6.88$6.14$6.370
Jul 31, 2023 – Aug 4, 2023$6.37$9.07$6.36$8.770
Aug 7, 2023 – Aug 11, 2023$8.41$8.68$7.10$7.460
Aug 14, 2023 – Aug 18, 2023$7.46$7.60$6.90$7.170
Aug 21, 2023 – Aug 25, 2023$7.15$7.22$5.64$5.900
Aug 28, 2023 – Sep 1, 2023$5.95$6.21$5.44$5.570
Sep 4, 2023 – Sep 8, 2023$5.53$5.75$4.98$5.700
Sep 11, 2023 – Sep 15, 2023$5.74$6.63$5.53$6.560
Sep 18, 2023 – Sep 22, 2023$6.54$6.93$5.82$6.880
Sep 25, 2023 – Sep 29, 2023$6.23$7.01$5.77$6.480
Oct 2, 2023 – Oct 6, 2023$6.46$6.70$5.94$6.680
Oct 9, 2023 – Oct 13, 2023$6.76$6.76$5.70$6.000
Oct 16, 2023 – Oct 20, 2023$5.97$6.36$5.11$5.290
Oct 23, 2023 – Oct 27, 2023$5.26$5.45$4.88$5.130
Oct 30, 2023 – Nov 3, 2023$5.14$6.07$5.07$5.880
Nov 6, 2023 – Nov 10, 2023$5.89$5.89$4.40$4.500
Nov 13, 2023 – Nov 17, 2023$4.53$4.57$3.66$4.310
Nov 20, 2023 – Nov 24, 2023$4.31$5.08$4.28$5.020
Nov 27, 2023 – Dec 1, 2023$4.93$5.64$4.75$5.560
Dec 4, 2023 – Dec 8, 2023$5.32$6.39$5.23$6.120
Dec 11, 2023 – Dec 15, 2023$6.12$8.69$5.97$8.280
Dec 18, 2023 – Dec 22, 2023$8.17$8.76$7.84$8.010
Dec 25, 2023 – Dec 29, 2023$8.02$8.25$7.77$7.980
Jan 1, 2024 – Jan 5, 2024$7.89$8.24$7.46$7.490
Jan 8, 2024 – Jan 12, 2024$7.48$8.90$7.20$7.780
Jan 15, 2024 – Jan 19, 2024$7.63$7.78$5.49$5.880
Jan 22, 2024 – Jan 26, 2024$5.93$6.40$5.78$6.040
Jan 29, 2024 – Feb 2, 2024$6.03$6.31$5.58$5.830
Feb 5, 2024 – Feb 9, 2024$5.73$6.55$5.64$6.450
Feb 12, 2024 – Feb 16, 2024$6.47$6.53$5.95$6.370
Feb 19, 2024 – Feb 23, 2024$6.29$6.61$6.05$6.410
Feb 26, 2024 – Mar 1, 2024$6.23$7.58$6.23$7.410
Mar 4, 2024 – Mar 8, 2024$7.41$7.45$6.53$6.640
Mar 11, 2024 – Mar 15, 2024$6.64$6.73$5.87$6.120
Mar 18, 2024 – Mar 22, 2024$6.21$6.48$5.82$5.980
Mar 25, 2024 – Mar 28, 2024$5.96$6.18$5.89$6.020
Apr 1, 2024 – Apr 5, 2024$6.04$6.22$5.59$5.840
Apr 8, 2024 – Apr 12, 2024$5.84$6.25$5.69$6.020
Apr 15, 2024 – Apr 19, 2024$6.00$6.00$4.95$5.090
Apr 22, 2024 – Apr 26, 2024$5.11$5.40$4.80$5.250
Apr 29, 2024 – May 3, 2024$5.30$5.68$4.86$5.390
May 6, 2024 – May 10, 2024$5.45$5.55$5.05$5.250
May 13, 2024 – May 17, 2024$5.27$5.69$5.25$5.440
May 20, 2024 – May 24, 2024$5.48$5.62$4.97$4.990
May 27, 2024 – May 31, 2024$5.05$5.15$4.86$4.920
Jun 3, 2024 – Jun 7, 2024$4.90$5.14$4.26$4.360
Jun 10, 2024 – Jun 14, 2024$4.28$5.00$4.24$4.680
Jun 17, 2024 – Jun 21, 2024$4.63$4.79$4.11$4.570
Jun 24, 2024 – Jun 28, 2024$4.60$4.87$4.16$4.540
Jul 1, 2024 – Jul 5, 2024$4.53$4.65$4.22$4.390
Jul 8, 2024 – Jul 12, 2024$4.47$5.79$4.44$5.540
Jul 15, 2024 – Jul 19, 2024$5.55$6.09$5.48$5.830
Jul 22, 2024 – Jul 26, 2024$5.77$6.78$5.74$6.490
Jul 29, 2024 – Aug 2, 2024$6.51$6.61$5.12$5.290
Aug 5, 2024 – Aug 9, 2024$4.87$5.50$4.82$5.080
Aug 12, 2024 – Aug 16, 2024$5.08$5.34$4.81$5.140
Aug 19, 2024 – Aug 23, 2024$5.17$5.41$5.04$5.310
Aug 26, 2024 – Aug 30, 2024$5.31$5.40$5.11$5.280
Sep 2, 2024 – Sep 6, 2024$5.32$5.32$4.47$4.850
Sep 9, 2024 – Sep 13, 2024$4.84$6.08$4.80$6.030
Sep 16, 2024 – Sep 20, 2024$6.02$6.37$5.56$5.750
Sep 23, 2024 – Sep 27, 2024$5.80$5.80$4.77$4.920
Sep 30, 2024 – Oct 4, 2024$4.88$4.97$4.20$4.620
Oct 7, 2024 – Oct 11, 2024$4.71$5.00$4.43$4.800
Oct 14, 2024 – Oct 18, 2024$4.79$5.35$4.67$4.990
Oct 21, 2024 – Oct 25, 2024$4.99$4.99$4.51$4.760
Oct 28, 2024 – Nov 1, 2024$4.76$5.21$4.72$5.020
Nov 4, 2024 – Nov 8, 2024$4.95$6.10$4.82$5.750
Nov 11, 2024 – Nov 15, 2024$5.84$6.14$4.04$4.070
Nov 18, 2024 – Nov 22, 2024$4.16$4.17$3.49$3.940
Nov 25, 2024 – Nov 29, 2024$4.01$4.18$2.37$2.590
Dec 2, 2024 – Dec 6, 2024$2.57$2.63$2.00$2.160
Dec 9, 2024 – Dec 13, 2024$2.30$2.50$1.92$1.970
Dec 16, 2024 – Dec 20, 2024$1.87$2.02$1.73$1.860
Dec 23, 2024 – Dec 27, 2024$1.87$1.94$1.77$1.780
Dec 30, 2024 – Jan 3, 2025$1.76$2.07$1.68$2.060
Jan 6, 2025 – Jan 10, 2025$2.05$2.15$1.75$1.800
Jan 13, 2025 – Jan 17, 2025$1.77$1.82$1.60$1.710
Jan 20, 2025 – Jan 24, 2025$1.75$1.86$1.70$1.790
Jan 27, 2025 – Jan 31, 2025$1.78$1.93$1.62$1.660
Feb 3, 2025 – Feb 7, 2025$1.63$1.85$1.59$1.750
Feb 10, 2025 – Feb 14, 2025$1.74$1.76$1.55$1.700
Feb 17, 2025 – Feb 21, 2025$1.73$1.93$1.71$1.870
Feb 24, 2025 – Feb 28, 2025$1.90$2.09$1.55$1.640
Mar 3, 2025 – Mar 7, 2025$1.62$1.65$1.30$1.440
Mar 10, 2025 – Mar 14, 2025$1.38$1.58$1.30$1.450
Mar 17, 2025 – Mar 21, 2025$1.45$1.48$1.26$1.350
Mar 24, 2025 – Mar 28, 2025$1.39$1.41$1.26$1.290
Mar 31, 2025 – Apr 4, 2025$1.25$1.28$1.01$1.020
Apr 7, 2025 – Apr 11, 2025$0.99$1.10$0.87$0.950
Apr 14, 2025 – Apr 17, 2025$0.98$1.09$0.91$0.920
Apr 21, 2025 – Apr 25, 2025$0.92$1.24$0.90$1.140
Apr 28, 2025 – May 2, 2025$1.15$1.34$1.07$1.300
May 5, 2025 – May 9, 2025$1.27$1.30$0.97$1.170
May 12, 2025 – May 16, 2025$1.23$1.27$1.01$1.220
May 19, 2025 – May 23, 2025$1.20$1.42$1.19$1.240
May 26, 2025 – May 30, 2025$1.25$1.46$1.22$1.330
Jun 2, 2025 – Jun 6, 2025$1.32$1.57$1.28$1.490
Jun 9, 2025 – Jun 13, 2025$1.50$1.69$1.40$1.540
Jun 16, 2025 – Jun 20, 2025$1.53$1.62$1.37$1.470
Jun 23, 2025 – Jun 27, 2025$1.47$1.54$1.36$1.480
Jun 30, 2025 – Jul 3, 2025$1.49$1.56$1.34$1.510
Jul 7, 2025 – Jul 11, 2025$1.49$1.75$1.41$1.610
Jul 14, 2025 – Jul 18, 2025$1.60$1.70$1.53$1.590
Jul 21, 2025 – Jul 25, 2025$1.57$1.81$1.56$1.760
Jul 28, 2025 – Aug 1, 2025$1.91$2.00$1.42$1.450
Aug 4, 2025 – Aug 8, 2025$1.45$2.22$1.42$2.150
Aug 11, 2025 – Aug 15, 2025$2.20$2.50$1.99$2.250
Aug 18, 2025 – Aug 22, 2025$2.24$2.56$2.03$2.520
Aug 25, 2025 – Aug 29, 2025$2.53$2.56$2.31$2.350
Sep 1, 2025 – Sep 5, 2025$2.30$3.07$2.30$3.010
Sep 8, 2025 – Sep 12, 2025$3.00$3.00$2.71$2.750
Sep 15, 2025 – Sep 19, 2025$2.75$3.18$2.71$3.030
Sep 22, 2025 – Sep 26, 2025$2.97$3.28$2.88$3.100
Sep 29, 2025 – Oct 3, 2025$3.09$3.33$2.83$3.320
Oct 6, 2025 – Oct 10, 2025$3.26$3.29$3.00$3.020
Oct 13, 2025 – Oct 17, 2025$3.00$3.40$2.87$3.040
Oct 20, 2025 – Oct 24, 2025$3.05$3.34$1.33$1.500
Oct 27, 2025 – Oct 31, 2025$1.54$1.68$1.40$1.470
Nov 3, 2025 – Nov 7, 2025$1.46$1.50$1.17$1.280
Nov 10, 2025 – Nov 14, 2025$1.27$1.44$1.20$1.240
Nov 17, 2025 – Nov 21, 2025$1.19$1.35$1.16$1.240
Nov 24, 2025 – Nov 28, 2025$1.26$1.39$1.26$1.330
Dec 1, 2025 – Dec 5, 2025$1.30$1.32$1.09$1.220
Dec 8, 2025 – Dec 12, 2025$1.24$1.54$1.18$1.490
Dec 15, 2025 – Dec 19, 2025$1.52$1.52$1.34$1.400
Dec 22, 2025 – Dec 26, 2025$1.40$1.49$1.40$1.450
Dec 29, 2025 – Jan 2, 2026$1.44$1.62$1.44$1.530
Jan 5, 2026 – Jan 9, 2026$1.51$1.87$1.51$1.860
Jan 12, 2026 – Jan 16, 2026$1.84$1.98$1.71$1.840
Jan 19, 2026 – Jan 23, 2026$1.81$2.00$1.77$1.940
Jan 26, 2026 – Jan 30, 2026$1.93$2.00$1.81$1.890
Feb 2, 2026 – Feb 6, 2026$1.87$2.05$1.75$1.960
Feb 9, 2026 – Feb 13, 2026$1.90$2.03$1.84$1.870
Feb 16, 2026 – Feb 20, 2026$1.88$2.04$1.86$1.990
Feb 23, 2026 – Feb 27, 2026$1.98$2.57$1.93$2.430
Mar 2, 2026 – Mar 6, 2026$2.37$2.37$1.89$2.000
Mar 9, 2026 – Mar 13, 2026$1.94$2.65$1.94$2.200
Mar 16, 2026 – Mar 20, 2026$2.29$2.29$1.96$2.050
Mar 23, 2026 – Mar 27, 2026$2.11$2.22$1.97$2.000
Mar 30, 2026 – Apr 2, 2026$2.02$2.64$1.95$2.410
Apr 6, 2026 – Apr 10, 2026$2.41$2.60$2.30$2.450
Apr 13, 2026 – Apr 17, 2026$2.44$2.67$2.28$2.570
Apr 20, 2026 – Apr 24, 2026$2.56$2.74$2.36$2.410
Apr 27, 2026 – May 1, 2026$2.41$2.47$2.15$2.360
May 4, 2026 – May 8, 2026$2.35$2.70$2.09$2.100
May 11, 2026 – May 15, 2026$2.10$2.37$2.01$2.160
May 18, 2026 – May 22, 2026$2.13$2.27$2.01$2.210
May 25, 2026 – May 29, 2026$2.21$2.32$2.05$2.160
Jun 1, 2026 – Jun 5, 2026$2.16$2.16$1.63$1.640
Jun 8, 2026 – Jun 12, 2026$1.65$1.74$1.49$1.530
Jun 15, 2026 – Jun 18, 2026$1.56$1.77$1.41$1.750
Jun 22, 2026 – Jun 26, 2026$1.76$2.02$1.72$1.860
Jun 29, 2026 – Jul 2, 2026$1.88$2.15$1.77$2.060
Jul 6, 2026 – Jul 10, 2026$2.06$2.07$1.48$1.610
Jul 13, 2026 – Jul 17, 2026$1.60$1.61$1.37$1.500
Jul 20, 2026 – Jul 24, 2026$1.49$1.55$1.42$1.480
Jul 27, 2026 – Jul 31, 2026$1.49$1.67$1.47$1.510
Aug 3, 2026 – Aug 7, 2026$1.51$2.04$1.46$1.780
Aug 10, 2026 – Aug 14, 2026$1.77$2.17$1.60$1.960
Aug 17, 2026 – Aug 21, 2026$1.91$2.53$1.90$2.360
Aug 24, 2026 – Aug 28, 2026$2.36$2.52$2.26$2.340
Aug 31, 2026 – Sep 4, 2026$2.32$2.76$2.22$2.460

Valuation

MetricValueUpside
IC Value$0.88-64%
P/E-1.59
P/B7.39
P/S10.77
EV/EBITDA-0.05
PEG-12.19
P/TBV7.39

Valuation history

Annual price overlaid with each model's fair value. Y-axis is log scale.

Annual price and model valuations for ALEC, USD per share
YearPriceAIICGraham-DoddGraham Formula
2011
2012
2013
2014
2015
2016
2017
2018$16.61$119.61
2019$29.10$24.52
2020$19.03$12.06
2021$13.99$147.24
2022$6.47$29.99
2023$6.64$14.81
2024$1.44$10.12
2025$2.20$14.38

Historic valuation ratios

Pick a category, then toggle metrics to compare.

USD millions

Line items

    USD millions

    Line items

      USD millions

      Line items

        About Alector, Inc.

        Alector, Inc. operates as a clinical-stage biopharmaceutical company, which engages in pioneering of immuno-neurology. It develops portfolio of innate immune system programs, designed to functionally repair genetic mutations and enable the rejuvenated immune cells to counteract emerging brain pathologies. Its treatment targets immune dysfunction as a root cause of multiple pathologies that are drivers of degenerative brain disorders. The company was founded by Asa Abeliovich, Errik B. Anderson, Tillman U. Gerngross, and Arnon Rosenthal in May 2013 and is headquartered in South San Francisco, CA.

        CEO
        Arnon Rosenthal
        Employees
        103
        Beta
        0.60

        Peer comparison

        Same-industry comparables, ranked by market cap.

        Scroll horizontally for additional metrics. Ticker column stays fixed.

        Peer comparison for ALEC: basic info, valuation models, ratios, profitability, leverage, growth, cash flow, dividends, enterprise value, and Altman Z-score.
        Basic InfoIC ValuationCore ValuationProfitabilityLeverage & LiquidityGrowthCash FlowDividendsEnterprise ValueRisk
        TickerCompany NamePriceMarket CapValueUpsideP/EP/BP/SEV/EBITDAPEGP/TBVGross MarginOperating MarginNet MarginROEROICROADebt/EquityInterest CoverageCurrent RatioQuick RatioNet Debt/EBITDAEPS GrowthSales GrowthFCF GrowthFCF YieldOp Cash Flow RatioCash ROICDividend YieldDividend PayoutShareholder YieldEV/EBITEV/FCFEV/SalesAltman Z-Score
        ALECAlector, Inc.$1.78165.43M$14.39+708%-1.597.3910.77-0.05-12.197.3954.09%-692.83%-679.16%-181.56%67.31%-37.54%1.183.833.680.2213.01%-79.07%-20.37%-81.23%-2.6584.98%0.00%0.00%17.24%-0.05-0.040.32-4.89
        ABOSAcumen Pharmaceuticals, I…$2.44176.24M-1.632.81-0.96-9.622.810.00%0.00%0.00%-96.20%-997.16%-67.07%0.44-29.324.073.920.1916.96%34.09%-58.39%-3.85-931.08%0.00%0.00%8.50%-0.91-0.97-5.25
        CRBPCorbus Pharmaceuticals Ho…$10.17188.43M-1.600.850.47-2.640.850.00%0.00%0.00%-54.18%937.58%-48.47%0.018.078.000.3460.33%54.32%-51.47%-3.12708.85%0.00%0.00%10.29%0.430.57-1.62
        FATEFate Therapeutics, Inc.$2.80326.37M$12.98+364%-1.020.6720.91-0.100.67-94.12%-2222.45%-2051.08%-51.84%-143.19%-35.89%0.385.795.67-0.25-29.88%-51.24%-9.36%-80.61%-2.94-108.62%0.00%0.00%12.94%-0.09-0.121.98-6.85
        IRDOpus Genetics, Inc.$3.66302.19M$15.26+317%-63.11203.92220.47-64.17203.92100.00%-271.90%-349.33%-449.36%144.72%-113.86%0.00-26.336.436.200.94-62.79%29.15%37.84%-1.13%-4.53132.18%0.00%0.00%0.48%-79.92-87.50217.2947.32
        MOLNMolecular Partners AG$4.05151.92M$3.57-12%-2.061.58-0.63-54.601.580.00%0.00%0.00%-55.55%805.15%-47.31%0.05-3229.118.798.611.333.77%-100.00%-13.34%-40.92%-4.65719.92%0.00%0.00%13.84%-0.65-0.72-1.64
        NKTXNkarta, Inc.$2.41172.42M-1.610.540.340.540.00%0.00%0.00%-28.90%-72.72%-22.99%0.2412.6912.50-0.39-11.88%-13.64%-53.77%-3.98-53.94%0.00%0.00%9.34%0.270.36-1.37
        PEPGPepGen Inc.$2.85197.13M-2.511.52-1.061.520.00%0.00%0.00%-67.39%-565.94%-55.21%0.1211.9411.740.49-25.61%-1.17%-36.43%-6.46-495.13%0.00%0.00%5.67%-1.00-1.141.37
        VORVor Biopharma Inc.$23.671.28B-0.19-0.810.46-0.18-0.810.00%0.00%0.00%2057.65%128.16%-229.31%-0.0218.2018.080.57107.35%43.81%-107.71%-5.6749.54%0.00%0.00%257.46%0.862.22-4.87

        Disclaimer: Information on this page is provided for educational purposes only and does not constitute investment advice. Upside computed as ($0.88 ÷ $2.46) − 1 = -64.23% (IC, example).