ALEC · NASDAQ
Alector (ALEC) Stock Price & Fundamentals
Alector (ALEC) closed at $645.56 on Oct 9, 2026, down 0.47% from the previous close of $648.61.
Share price, past year
1Y +34.66%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $645.56 |
| Sep 30, 2026 | $641.71 |
| Aug 31, 2026 | $644.82 |
| Jul 31, 2026 | $595.47 |
| Jun 30, 2026 | $571.10 |
| May 29, 2026 | $603.24 |
| Apr 30, 2026 | $597.47 |
| Mar 31, 2026 | $543.68 |
| Feb 27, 2026 | $523.14 |
| Jan 30, 2026 | $477.44 |
| Dec 31, 2025 | $483.94 |
| Nov 28, 2025 | $493.95 |
| Oct 31, 2025 | $489.91 |
Key statistics
- Market cap
- $72.08B
- P/E (TTM)
- —
- EPS (TTM)
- −$1.10
- Revenue (TTM)
- $13.84M
- Net income (TTM)
- −$117.85M
- Shares outstanding
- 111.7M
- Dividend yield
- —
- 52-week range
- $465.70 – $658.57
Alector's market cap is $72.08B, based on a share price of $645.56 and 111.7M shares outstanding as of Jun 30, 2026.
Financials
Alector reported revenue of $21.05M for fiscal 2025, down 79.07% from fiscal 2024.
Alector reported a net loss of $142.93M in fiscal 2025.
Annual revenue
| Fiscal year | Revenue | Growth | Net income | Net margin | EPS (diluted) | Free cash flow |
|---|---|---|---|---|---|---|
| FY2025ended Dec 31, 2025 | $21.05M | −79.1% | −$142.93M | −679.2% | −$1.39 | −$184.07M |
| FY2024ended Dec 31, 2024 | $100.56M | +3.6% | −$119.05M | −118.4% | −$1.23 | −$231.16M |
| FY2023ended Dec 31, 2023 | $97.10M | −27.3% | −$130.39M | −134.3% | −$1.56 | −$186.54M |
| FY2022ended Dec 31, 2022 | $133.60M | −35.5% | −$133.31M | −99.8% | −$1.62 | −$24.45M |
| FY2021ended Dec 31, 2021 | $207.09M | +881.5% | −$36.33M | −17.5% | −$0.45 | $295.30M |
| FY2020ended Dec 31, 2020 | $21.10M | −0.6% | −$190.23M | −901.6% | −$2.45 | −$171.77M |
| FY2019ended Dec 31, 2019 | $21.22M | −23.3% | −$105.39M | −496.7% | −$1.71 | −$114.57M |
| FY2018ended Dec 31, 2018 | $27.68M | +641.0% | −$52.25M | −188.8% | −$4.62 | $125.58M |
| FY2017ended Dec 31, 2017 | $3.74M | — | −$32.48M | −869.6% | −$3.55 | −$18.57M |
| Quarter | Revenue | Net income | EPS (diluted) |
|---|---|---|---|
| Q2 FY2026ended Jun 30, 2026 | $3.32M | −$22.99M | −$0.21 |
| Q1 FY2026ended Mar 31, 2026 | $1.05M | −$22.93M | −$0.21 |
| Q4 FY2025ended Dec 31, 2025 | $6.21M | −$37.27M | −$0.34 |
| Q3 FY2025ended Sep 30, 2025 | $3.26M | −$34.67M | −$0.34 |
| Q2 FY2025ended Jun 30, 2025 | $7.87M | −$30.52M | −$0.30 |
| Q1 FY2025ended Mar 31, 2025 | $3.70M | −$40.47M | −$0.41 |
| Q4 FY2024ended Dec 31, 2024 | $54.23M | −$2.07M | −$0.02 |
| Q3 FY2024ended Sep 30, 2024 | $15.34M | −$42.22M | −$0.43 |
Company profile
- Name
- Alector, Inc.
- Ticker
- ALEC
- Exchange
- NASDAQ
- Industry (SEC SIC)
- Biological Products, (No Diagnostic Substances)
- Headquarters
- 131 Oyster Point Blvd., Suite 600, South San Francisco, CA 94080
- Fiscal year ends
- December
- SEC CIK
- 0001653087
Recent SEC filings
- Oct 5, 2026
- Aug 6, 2026
- Aug 6, 2026
- Jul 8, 2026
- Jun 17, 2026
- May 7, 2026
- May 7, 2026
- May 7, 2026
Frequently asked questions
What is Alector's stock price?
Alector (ALEC) closed at $645.56 on Oct 9, 2026, down 0.47% from the previous close of $648.61.
What is Alector's market cap?
Alector's market cap is $72.08B, based on a share price of $645.56 and 111.7M shares outstanding as of Jun 30, 2026.
How much revenue does Alector make?
Alector reported revenue of $21.05M for fiscal 2025, down 79.07% from fiscal 2024.
Does Alector pay a dividend?
Alector's recent filings report no dividends declared over the last four quarters.
Sources and methodology
Fundamentals come from Alector, Inc.'s filings with the SEC (EDGAR XBRL company facts). Fourth-quarter figures that companies don't report separately are calculated as the fiscal year minus the first three quarters. Trailing twelve-month (TTM) figures sum the latest four quarters. Prices are generated sample data for development. Last updated Oct 9, 2026. Data sources and disclosures