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NASDAQ · Health care

Alector, Inc. (ALEC)

Alector, Inc. brought in $13.8M of revenue over the twelve months to June 30, 2026, down 82.9% from a year earlier. It posted a net loss of $117.9M. In fiscal 2025 capital spending exceeded operating cash flow by $184.1M. At June 30, 2026 it held $59.9M in cash against $9.8M of debt. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on August 6, 2026.

Price
$1.95
+1.56% on the day · September 25, 2026
52-week range $1.09 to $3.40
Market cap
$217.7M
Revenue (last 12 months)
$13.8M
-82.9% year on year
Net margin
-851.7%

What Alector, Inc. does

Alector, Inc. is registered with the SEC under industry code SIC 2836 (Biological Products, (No Diagnostic Substances)). Its shares trade on NASDAQ under the ticker ALEC.

Revenue and profit by year

Revenue
FY19: $27.7M $27.7M FY19FY19: $21.2M $21.2M FY19FY20: $21.1M $21.1M FY20FY21: $207.1M $207.1M FY21FY22: $133.6M $133.6M FY22FY23: $97.1M $97.1M FY23FY24: $100.6M $100.6M FY24FY25: $21M $21M FY25
Net income
FY19: -$52.2M -$52.2M FY19FY19: -$105.4M -$105.4M FY19FY20: -$190.2M -$190.2M FY20FY21: -$36.3M -$36.3M FY21FY22: -$133.3M -$133.3M FY22FY23: -$130.4M -$130.4M FY23FY24: -$119M -$119M FY24FY25: -$142.9M -$142.9M FY25

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2025$21M-$156M-$142.9M-$1.39-$184.1M
2024$100.6M-$145M-$119M-$1.23-$231.2M
2023$97.1M-$151.7M-$130.4M-$1.56-$186.5M
2022$133.6M-$137.8M-$133.3M-$1.62-$24.4M
2021$207.1M-$37.4M-$36.3M-$0.45$295.3M
2020$21.1M-$195.2M-$190.2M-$2.45-$171.8M

Latest SEC filings

What Alector, Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. September 18, 2026
  2. August 6, 2026
    Quarterly report 10-Q · period to June 30, 2026
  3. August 6, 2026
  4. July 8, 2026
  5. June 17, 2026
  6. May 14, 2026
  7. May 7, 2026
  8. May 7, 2026
  9. May 7, 2026
    Quarterly report 10-Q · period to March 31, 2026
  10. May 7, 2026

Recent insider filings (Forms 3, 4 and 144): 10, the latest on September 4, 2026. Insider transactions on SEC

All filings on SEC EDGAR

Questions about ALEC

What does Alector, Inc. do?

Alector, Inc. is registered with the SEC under industry code SIC 2836 (Biological Products, (No Diagnostic Substances)). Its shares trade on NASDAQ under the ticker ALEC.

Is Alector, Inc. profitable?

No. Over the twelve months to June 30, 2026 it reported a net loss of $117.9M on revenue of $13.8M.

How much revenue does Alector, Inc. make?

Over the twelve months to June 30, 2026 Alector, Inc. reported revenue of $13.8M. That is 82.9% less than a year earlier.

When did Alector, Inc. last report?

Its most recent periodic report is the quarterly report (10-Q) filed on August 6, 2026. It covers the period to June 30, 2026. Its newest filing of any kind is the passive stake (5% or more) from September 18, 2026.

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Where the numbers come from

Financial figures are the values Alector, Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.