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Financials · ALEC

Alector Inc. (ALEC) financials

For the twelve months ended Sep 30, 2026, Alector Inc. reported $173.47M of revenue and $41.41M of net income.

Revenue, TTM
$173.47M
Revenue growth, YoY
+151.2%
Net income, TTM
$41.41M
Net margin
23.9%
Free cash flow, TTM
-$150.02M
EPS, diluted, TTM
$0.35
Cash
$75.47M
Total debt
$0
P/E
9.10
P/S
2.17
Market cap
$376.7M
Annual revenue$21.05M
FY2017FY2025
Annual net income-$142.93M
FY2017FY2025
Annual free cash flow-$184.07M
FY2017FY2025

ALEC revenue and earnings growth

ALEC revenueQ3 2026$162.87M

Quarter YoY
50x
QoQ
49x
FY YoY
-79.1%
5Y CAGR
-0.1%

ALEC revenue was $162.87M in fiscal Q3 2026 (ended Sep 30, 2026), up about 50-fold from a year earlier and up about 49-fold from the prior quarter. For the full fiscal 2025 it was $21.05M, down 79.1% from fiscal 2024. Compound annual growth was -0.1% over 5 years. It rose in 3 of the last 8 fiscal years.

ALEC net incomeQ3 2026$124.60M

ALEC net income was $124.60M in fiscal Q3 2026 (ended Sep 30, 2026), compared with -$34.67M a year earlier. For the full fiscal 2025 it was -$142.93M, compared with -$119.05M in fiscal 2024.

ALEC EPSQ3 2026$1.11

ALEC diluted EPS was $1.11 in fiscal Q3 2026 (ended Sep 30, 2026), compared with -$0.34 a year earlier. For the full fiscal 2025 it was -$1.39, compared with -$1.23 in fiscal 2024.

ALEC free cash flowQ3 2026-$24.15M

ALEC free cash flow was -$24.15M in fiscal Q3 2026 (ended Sep 30, 2026), compared with -$32.52M a year earlier. For the full fiscal 2025 it was -$184.07M, compared with -$231.16M in fiscal 2024.

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Income statement

Income statement
Line item
FY2025
Dec 31, 2025
FY2024
Dec 31, 2024
FY2023
Dec 31, 2023
FY2022
Dec 31, 2022
FY2021
Dec 31, 2021
FY2020
Dec 31, 2020
FY2019
Dec 31, 2019
FY2018
Dec 31, 2018
FY2017
Dec 31, 2017
Revenue$21.05M$100.56M$97.10M$133.62M$207.09M$21.10M$21.22M$27.68M$3.73M
Research and development$123.06M$185.94M$192.12M$210.42M$189.41M$156.87M$100.53M$73.03M$29.91M
Selling, general and admin$53.99M$59.62M$56.69M$61.03M$55.04M$59.40M$35.09M$11.93M$6.50M
Operating income-$156.01M-$145.00M-$151.74M-$137.83M-$37.36M-$195.17M-$114.40M-$57.29M-$32.68M
Pre-tax income-$142.76M-$118.92M-$125.10M-$130.10M-----
Income tax$168.0K$128.0K$5.21M$3.25M$0$0$0--
Net income-$142.93M-$119.05M-$130.39M-$133.31M-$36.33M-$190.23M-$105.39M-$52.25M-$32.48M
EPS, basic-$1.39-$1.23-$1.56-$1.62-$0.45-$2.45-$1.71-$4.62-$3.55
EPS, diluted-$1.39-$1.23-$1.56-$1.62-$0.45-$2.45-$1.71-$4.62-$3.55
Diluted shares103.0M96.6M83.7M82.5M80.4M77.8M61.7M11.3M9.1M

Balance sheet

Balance sheet
Line item
FY2025
Dec 31, 2025
FY2024
Dec 31, 2024
FY2023
Dec 31, 2023
FY2022
Dec 31, 2022
FY2021
Dec 31, 2021
FY2020
Dec 31, 2020
FY2019
Dec 31, 2019
FY2018
Dec 31, 2018
FY2017
Dec 31, 2017
Cash and equivalents$65.80M$34.87M$76.10M$155.79M$330.62M$51.44M$91.11M$66.94M$32.45M
Short-term investments$190.22M$380.38M$474.31M$558.53M$406.10M$363.34M$263.43M$224.94M-
Current assets$266.45M$424.82M$565.81M$726.43M$749.71M$421.51M$357.44M$293.18M-
Total assets$293.24M$468.30M$621.83M$787.65M$814.66M$488.25M$421.91M$308.36M-
Current liabilities$69.50M$125.06M$177.95M$93.81M$139.56M$68.09M$61.97M$47.95M-
Short-term debt$366.0K$0-------
Long-term debt$9.32M$9.39M$0------
Total debt$9.69M$9.39M$0------
Total liabilities$262.59M$341.50M$487.67M$573.21M$513.93M$220.72M$227.17M$195.24M-
Shareholders' equity$30.65M$126.80M$134.16M$214.44M$300.72M$267.53M$194.74M-$97.40M-$52.03M

Cash flow

Cash flow
Line item
FY2025
Dec 31, 2025
FY2024
Dec 31, 2024
FY2023
Dec 31, 2023
FY2022
Dec 31, 2022
FY2021
Dec 31, 2021
FY2020
Dec 31, 2020
FY2019
Dec 31, 2019
FY2018
Dec 31, 2018
FY2017
Dec 31, 2017
Operating cash flow-$184.03M-$229.91M-$184.16M-$20.33M$298.55M-$166.73M-$99.31M$127.46M-$17.77M
Capital expenditures$41.0K$1.25M$2.38M$4.12M$3.25M$5.03M$15.27M$1.88M$801.0K
Free cash flow-$184.07M-$231.16M-$186.54M-$24.45M$295.30M-$171.77M-$114.57M$125.58M-$18.57M
Investing cash flow$196.60M$107.13M$101.92M-$159.01M-$49.66M-$105.05M-$48.87M-$224.12M-$801.0K
Financing cash flow$20.21M$81.54M$2.55M$4.51M$30.30M$232.11M$172.35M$131.15M-$15.0K
Stock-based compensation$26.66M$39.46M$42.80M$46.15M$40.78M$30.52M$16.28M$6.92M$5.35M
Depreciation and amortization$5.72M$5.41M$5.72M$5.71M$6.33M$5.87M$3.77M$1.02M$680.0K

Key ratios

Key ratios
Line item
FY2025
Dec 31, 2025
FY2024
Dec 31, 2024
FY2023
Dec 31, 2023
FY2022
Dec 31, 2022
FY2021
Dec 31, 2021
FY2020
Dec 31, 2020
FY2019
Dec 31, 2019
FY2018
Dec 31, 2018
FY2017
Dec 31, 2017
Revenue growth, YoY-79.1%3.6%-27.3%-35.5%881.5%-0.6%-23.3%641.0%-
Operating margin-741.3%-144.2%-156.3%-103.2%-18.0%-925.1%-539.2%-207.0%-874.9%
Net margin-679.2%-118.4%-134.3%-99.8%-17.5%-901.6%-496.7%-188.8%-869.6%
Free cash flow margin-874.7%-229.9%-192.1%-18.3%142.6%-814.1%-540.0%453.7%-497.2%
Return on equity-466.3%-93.9%-97.2%-62.2%-12.1%-71.1%-54.1%--
Return on assets-48.7%-25.4%-21.0%-16.9%-4.5%-39.0%-25.0%-16.9%-
Current ratio3.833.403.187.745.376.195.776.11-
Debt to equity0.320.070.00------

Source: XBRL data Alector Inc. files with the SEC, latest filing dated Nov 5, 2026 (see filings on SEC EDGAR). Provided for information only, not investment advice. Check the filing before relying on a number.

* Worked out from the filings rather than stated in them: Q4 is the full year less the first nine months.

Per-share figures are as filed. The filings show no stock split in these periods.

EPS growth is left out where the share count moved enough to suggest a split the filings do not show. Growth rates need a positive starting figure. CAGR is compound annual growth between fiscal years. The CSV holds every period on file, in full figures, from the same SEC filings.

ALEC peers

CompanyRevenueGrowthNet incomeNet marginMarket cap
ALEC$173.47M+151.2%$41.41M23.9%$376.7M
AMGN$38.90B+8.2%$9.39B24.1%$251.65B
GILD$30.99B+6.5%-$3.86B-12.5%$211.94B
MRNA$2.52B+13.1%-$2.79B-110.5%$101.49B
ARGX$4.25B+88.6%$1.29B30.4%$60.30B
RVMD$0--$1.13B-$41.76B
BIIB$10.30B+2.3%$347.50M3.4%$37.44B
BNTX€2.87B+4.3%-€1.14B-39.6%$21.91B
EXEL$2.50B+9.1%$885.14M35.5%$17.22B

ALEC FAQ

8 questions
  • What is ALEC revenue?
    Alector Inc. (ALEC) reported $173.47M of revenue for the twelve months ended Sep 30, 2026. That is up 151.2% from the year before. Revenue for fiscal 2025 was $21.05M.
  • Is ALEC profitable?
    Yes. Alector Inc. earned $41.41M in net income for the twelve months ended Sep 30, 2026, a net margin of 23.9%.
  • How much cash and debt does ALEC have?
    Alector Inc. reported $75.47M in cash and cash equivalents and $0 of debt on its most recent balance sheet in SEC filings.
  • How fast is ALEC revenue growing?
    Alector Inc.'s revenue changed -79.1% in fiscal 2025, to $21.05M. Its compound annual growth rate was -0.1% over 5 years.
  • What is ALEC free cash flow?
    Alector Inc. generated -$150.02M of free cash flow for the twelve months ended Sep 30, 2026, which is operating cash flow of -$149.88M less capital expenditures.
  • What is ALEC earnings per share?
    Diluted earnings per share were $0.35 for the twelve months ended Sep 30, 2026, from SEC filings, restated for any stock split those filings show.
  • When did ALEC last report financial results?
    The latest statements here come from Alector Inc.'s 10-Q filed on Nov 5, 2026, covering the period ended Sep 30, 2026.
  • Where does this ALEC financial data come from?
    Quantisnow builds these statements from the structured XBRL data Alector Inc. files with the SEC. It is provided for information only and is not investment advice.