Alector, Inc. (ALEC) Stock Price History

Historical prices from 2019 to 2026

$1.93-0.01 (-0.52%)close Jul 7

Returns

1M: +17.7%
3M: -21.9%
YTD: +26.1%
1Y: +34.0%
3Y: -32.1%
5Y: -45.3%

ATH$43.32Jul 2021-95.5%

ATL$0.87Apr 2025pre-split

Avg Vol (50D)672K/ day

52-Week Range$1.09 — $3.40

LowCurrent: $1.93High

Loading 10-year price history...

ALEC Historical Performance

1 YearTotal Return

+34.0%

Price: +34.0%

3 YearsTotal Return

-68.7%

CAGR: -32.1%

Price: -68.7%

5 YearsTotal Return

-95.1%

CAGR: -45.3%

Price: -95.1%

YTD

+26.1%

ALEC Annual Returns

Year-by-year price performance · 2019–2026

Best+37.9%2021

Worst-76.3%2024

Up years2/8

2019-4.3%

2020-8.7%

2021+37.9%

2022-55.6%

2023-12.3%

2024-76.3%

2025-17.5%

2026+58.8%

2019 annual price return: -4.3%
2020 annual price return: -8.7%
2021 annual price return: +37.9%
2022 annual price return: -55.6%
2023 annual price return: -12.3%
2024 annual price return: -76.3%
2025 annual price return: -17.5%
2026 annual price return: +58.8%

LessMore

ALEC Stock Price Trajectory (2019–2026)

As of July 8, 2026, Alector, Inc. (ALEC) trades at $1.93, representing a +34.0% return over the past year. The stock has delivered a -95.1% total return over five years (-45.3% CAGR), reflecting challenging market conditions.

The stock reached its all-time high of $43.32 on July 2, 2021. From this peak, ALEC has corrected -95.5%, currently trading 5% below its 200-day moving average, suggesting potential weakness.

When compared to Healthcare sector peers PRTA (+53.9% 1Y), ACAD (+25.5% 1Y), and SAVA (-31.6% 1Y), ALEC has underperformed the peer group average. Compare ALEC vs PRTA →

ALEC Historical Price Data · from 2019

Rows 1–50 of 1,863

Date	Open	High	Low	Close	Volume	Change %
2026-07-07	1.97	1.97	1.85	1.93	414K	-0.52%
2026-07-06	2.04	2.06	1.93	1.94	583K	-5.83%
2026-07-02	2.00	2.15	2.00	2.06	389K	+2.49%
2026-07-01	1.99	2.06	1.96	2.01	365K	0.00%
2026-06-30	2.12	2.12	1.98	2.01	592K	-3.37%
2026-06-29	1.83	2.09	1.77	2.08	534K	+11.83%
2026-06-26	1.84	1.96	1.84	1.86	0	+0.54%
2026-06-25	1.75	2.02	1.75	1.85	2.82M	+3.35%
2026-06-24	1.85	1.87	1.78	1.79	492K	-2.19%
2026-06-23	1.75	1.87	1.75	1.83	852K	+2.81%
2026-06-22	1.76	1.91	1.72	1.78	1.58M	+1.71%
2026-06-18	1.58	1.76	1.56	1.75	979K	+12.18%
2026-06-17	1.55	1.59	1.53	1.56	477K	+1.30%
2026-06-16	1.47	1.55	1.41	1.54	710K	+4.05%
2026-06-15	1.56	1.59	1.46	1.48	623K	-3.27%
2026-06-12	1.58	1.60	1.53	1.53	262K	-2.55%
2026-06-11	1.49	1.74	1.49	1.57	424K	+3.29%
2026-06-10	1.65	1.66	1.49	1.52	421K	-6.75%
2026-06-09	1.64	1.68	1.58	1.63	432K	-0.61%
2026-06-08	1.65	1.67	1.57	1.64	663K	+0.31%
2026-06-05	1.78	1.80	1.63	1.64	363K	-9.67%
2026-06-04	1.79	1.92	1.79	1.81	437K	+1.97%
2026-06-03	1.89	1.94	1.71	1.77	1.69M	-8.97%
2026-06-02	2.07	2.07	1.92	1.95	1.56M	-5.80%
2026-06-01	2.13	2.16	2.07	2.07	703K	-4.17%
2026-05-29	2.15	2.25	2.05	2.16	984K	+0.47%
2026-05-28	2.21	2.24	2.10	2.15	1.30M	-2.71%
2026-05-27	2.20	2.28	2.17	2.21	427K	+0.91%
2026-05-26	2.20	2.32	2.13	2.19	432K	-0.90%
2026-05-22	2.22	2.27	2.17	2.21	0	0.00%
2026-05-21	2.07	2.22	2.01	2.21	920K	+4.25%
2026-05-20	2.13	2.23	2.11	2.12	896K	+0.47%
2026-05-19	2.05	2.16	2.02	2.11	788K	-0.47%
2026-05-18	2.13	2.18	2.04	2.12	814K	-1.85%
2026-05-15	2.25	2.29	2.14	2.16	1.10M	-6.09%
2026-05-14	2.22	2.37	2.20	2.30	768K	+6.98%
2026-05-13	2.12	2.21	2.09	2.15	458K	-0.46%
2026-05-12	2.04	2.21	2.03	2.16	435K	+5.37%
2026-05-11	2.10	2.20	2.00	2.05	383K	-2.38%
2026-05-08	2.13	2.33	2.10	2.10	714K	-13.93%
2026-05-07	2.51	2.56	2.41	2.44	268K	-5.06%
2026-05-06	2.60	2.69	2.57	2.57	418K	0.00%
2026-05-05	2.55	2.62	2.53	2.57	351K	+2.39%
2026-05-04	2.35	2.54	2.35	2.51	447K	+6.36%
2026-05-01	2.33	2.38	2.29	2.36	379K	-0.42%
2026-04-30	2.29	2.44	2.15	2.37	634K	+3.04%
2026-04-29	2.36	2.38	2.27	2.30	285K	-3.77%
2026-04-28	2.35	2.42	2.35	2.39	296K	+1.70%
2026-04-27	2.41	2.46	2.33	2.35	593K	-2.49%
2026-04-24	2.42	2.52	2.36	2.41	319K	-0.82%

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ALEC — Frequently Asked Questions

Quick answers to the most common questions about buying ALEC stock.

How has ALEC stock performed recently?

ALEC returned +34.0% over the past year, beating its 5-year annualized CAGR of -45.3%. The stock trades below its 200-day moving average, confirming the uptrend.

What is ALEC's all-time high price?

Alector, Inc. reached $43.32 on 2021-07-02. The 52-week high is $3.40. Current 1-year return of +34.0% places the stock closer to historical peaks.

Where can I download ALEC historical price data?

This page provides ALEC daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2019-2026, downloadable in CSV format.

ALEC Stock Price Trajectory (2019–2026)

When compared to Healthcare sector peers PRTA (+53.9% 1Y), ACAD (+25.5% 1Y), and SAVA (-31.6% 1Y), ALEC has underperformed the peer group average. Compare ALEC vs PRTA →

Date

Open

High

Low

Volume

Change %

2026-07-07

1.97

1.85

1.93

414K

-0.52%

2026-07-06

2.04

2.06

1.93

1.94

583K

-5.83%

2026-07-02

2.00

2.15

2.00

2.06

389K

+2.49%

2026-07-01

1.99

2.06

1.96

2.01

365K

0.00%

2026-06-30

2.12

1.98

2.01

592K

-3.37%

2026-06-29

1.83

2.09

1.77

2.08

534K

+11.83%

2026-06-26

1.84

1.96

1.84

1.86

+0.54%

2026-06-25

1.75

2.02

1.75

1.85

2.82M

+3.35%

2026-06-24

1.85

1.87

1.78

1.79

492K

-2.19%

2026-06-23

1.75

1.87

1.75

1.83

852K

+2.81%

2026-06-22

1.76

1.91

1.72

1.78

1.58M

+1.71%

2026-06-18

1.58

1.76

1.56

1.75

979K

+12.18%

2026-06-17

1.55

1.59

1.53

1.56

477K

+1.30%

2026-06-16

1.47

1.55

1.41

1.54

710K

+4.05%

2026-06-15

1.56

1.59

1.46

1.48

623K

-3.27%

2026-06-12

1.58

1.60

1.53

262K

-2.55%

2026-06-11

1.49

1.74

1.49

1.57

424K

+3.29%

2026-06-10

1.65

1.66

1.49

1.52

421K

-6.75%

2026-06-09

1.64

1.68

1.58

1.63

432K

-0.61%

2026-06-08

1.65

1.67

1.57

1.64

663K

+0.31%

2026-06-05

1.78

1.80

1.63

1.64

363K

-9.67%

2026-06-04

1.79

1.92

1.79

1.81

437K

+1.97%

2026-06-03

1.89

1.94

1.71

1.77

1.69M

-8.97%

2026-06-02

2.07

1.92

1.95

1.56M

-5.80%

2026-06-01

2.13

2.16

2.07

703K

-4.17%

2026-05-29

2.15

2.25

2.05

2.16

984K

+0.47%

2026-05-28

2.21

2.24

2.10

2.15

1.30M

-2.71%

2026-05-27

2.20

2.28

2.17

2.21

427K

+0.91%

2026-05-26

2.20

2.32

2.13

2.19

432K

-0.90%

2026-05-22

2.22

2.27

2.17

2.21

0.00%

2026-05-21

2.07

2.22

2.01

2.21

920K

+4.25%

2026-05-20

2.13

2.23

2.11

2.12

896K

+0.47%

2026-05-19

2.05

2.16

2.02

2.11

788K

-0.47%

2026-05-18

2.13

2.18

2.04

2.12

814K

-1.85%

2026-05-15

2.25

2.29

2.14

2.16

1.10M

-6.09%

2026-05-14

2.22

2.37

2.20

2.30

768K

+6.98%

2026-05-13

2.12

2.21

2.09

2.15

458K

-0.46%

2026-05-12

2.04

2.21

2.03

2.16

435K

+5.37%

2026-05-11

2.10

2.20

2.00

2.05

383K

-2.38%

2026-05-08

2.13

2.33

2.10

714K

-13.93%

2026-05-07

2.51

2.56

2.41

2.44

268K

-5.06%

2026-05-06

2.60

2.69

2.57

418K

0.00%

2026-05-05

2.55

2.62

2.53

2.57

351K

+2.39%

2026-05-04

2.35

2.54

2.35

2.51

447K

+6.36%

2026-05-01

2.33

2.38

2.29

2.36

379K

-0.42%

2026-04-30

2.29

2.44

2.15

2.37

634K

+3.04%

2026-04-29

2.36

2.38

2.27

2.30

285K

-3.77%

2026-04-28

2.35

2.42

2.35

2.39

296K

+1.70%

2026-04-27

2.41

2.46

2.33

2.35

593K

-2.49%

2026-04-24

2.42

2.52

2.36

2.41

319K

-0.82%

Alector, Inc. (ALEC) Stock Price History

ALEC Historical Performance

ALEC Annual Returns

Download Historical Data

ALEC Stock Price Trajectory (2019–2026)

ALEC Historical Price Data · from 2019

Intrinsic Valuation

Historical Returns

DCA Calculator

Peer Comparison

Alector, Inc. (ALEC) Stock Price History

ALEC Historical Performance

ALEC Annual Returns

Download Historical Data

ALEC Stock Price Trajectory (2019–2026)

ALEC Historical Price Data · from 2019

Intrinsic Valuation

Historical Returns

DCA Calculator

Peer Comparison