Alector, Inc. Net Income Loss

• Alector, Inc. showed a decrease of -20.1% in Net Income Loss from 2024 to 2025.
• This data is from Alector, Inc.'s annual report (Form 10-K), filed with the SEC on February 25, 2026.
• XBRL data for this metric is available from 2017 to 2025 (9 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
• Over the full 9 years of available data (2017 to 2025), Alector, Inc.'s Net Income Loss has declined by 340.1%.
• Historical annual values: Fiscal year 2025: -$142.93 million | Fiscal year 2024: -$119.05 million | Fiscal year 2023: -$130.39 million | Fiscal year 2022: -$133.31 million | Fiscal year 2021: -$36.33 million | Fiscal year 2020: -$190.23 million | Fiscal year 2019: -$105.39 million | Fiscal year 2018: -$52.25 million | Fiscal year 2017: -$32.48 million.
• Data sourced from SEC EDGAR public filings as of June 22, 2026.

Last verified: June 22, 2026