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10-K

Annual Report

Alector, Inc. ALEC

0001193125-26-071593

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Filed
Feb 25, 2026 12:00 AM ET
Period of report

On SEC.gov

Financials in this filing

Metric Period Value
Shares Outstanding FY 2025 · Feb 20, 2026 110.36M sh
Shares Diluted FY 2025 · Dec 31, 2025 103M sh
Shares Diluted FY 2025 · Dec 31, 2024 96.59M sh
Capex FY 2025 · Dec 31, 2025 $41K
Capex FY 2025 · Dec 31, 2024 $1.26M
Operating Cash Flow FY 2025 · Dec 31, 2025 −$184.03M
Operating Cash Flow FY 2025 · Dec 31, 2024 −$229.91M
Long Term Debt FY 2025 · Dec 31, 2025 $9.32M
Long Term Debt FY 2025 · Dec 31, 2024 $9.39M
Short Term Debt FY 2025 · Dec 31, 2025 $366K
Short Term Debt FY 2025 · Dec 31, 2024 $0
Cash And Equivalents FY 2025 · Dec 31, 2025 $65.8M
Cash And Equivalents FY 2025 · Dec 31, 2024 $33.02M
Stockholders Equity FY 2025 · Dec 31, 2025 $30.65M
Stockholders Equity FY 2025 · Dec 31, 2024 $126.8M
Stockholders Equity FY 2025 · Dec 31, 2023 $134.16M
Current Liabilities FY 2025 · Dec 31, 2025 $69.5M
Current Liabilities FY 2025 · Dec 31, 2024 $125.06M
Total Liabilities FY 2025 · Dec 31, 2025 $262.59M
Total Liabilities FY 2025 · Dec 31, 2024 $341.5M
Current Assets FY 2025 · Dec 31, 2025 $266.45M
Current Assets FY 2025 · Dec 31, 2024 $424.82M
Total Assets FY 2025 · Dec 31, 2025 $293.24M
Total Assets FY 2025 · Dec 31, 2024 $468.3M
Eps Diluted FY 2025 · Dec 31, 2025 −$1.39
Eps Diluted FY 2025 · Dec 31, 2024 −$1.23
Eps Basic FY 2025 · Dec 31, 2025 −$1.39
Eps Basic FY 2025 · Dec 31, 2024 −$1.23
Sga Expense FY 2025 · Dec 31, 2025 $53.99M
Sga Expense FY 2025 · Dec 31, 2024 $59.62M
Rd Expense FY 2025 · Dec 31, 2025 $123.07M
Rd Expense FY 2025 · Dec 31, 2024 $185.94M
Net Income FY 2025 · Dec 31, 2025 −$142.93M
Net Income FY 2025 · Dec 31, 2024 −$119.05M
Operating Income FY 2025 · Dec 31, 2025 −$156.01M
Operating Income FY 2025 · Dec 31, 2024 −$145M
Revenue FY 2025 · Dec 31, 2025 $21.05M
Revenue FY 2025 · Dec 31, 2024 $100.56M