Growth Metrics

Alector (ALEC) Operating Income (2018 - 2025)

Alector (ALEC) has disclosed Operating Income for 8 consecutive years, with $86.5 million as the latest value for Q4 2025.

  • Quarterly Operating Income fell 23.33% to $86.5 million in Q4 2025 from the year-ago period, while the trailing twelve-month figure was -$30.0 million through Dec 2025, down 20.02% year-over-year, with the annual reading at -$30.0 million for FY2025, 20.02% down from the prior year.
  • Operating Income for Q4 2025 was $86.5 million at Alector, up from -$37.6 million in the prior quarter.
  • The five-year high for Operating Income was $126.3 million in Q3 2021, with the low at -$55.7 million in Q4 2021.
  • Average Operating Income over 5 years is -$19.1 million, with a median of -$45.2 million recorded in 2024.
  • Peak annual rise in Operating Income hit 337.64% in 2024, while the deepest fall reached 1170.72% in 2024.
  • Over 5 years, Operating Income stood at -$55.7 million in 2021, then increased by 0.52% to -$55.4 million in 2022, then increased by 14.4% to -$47.5 million in 2023, then soared by 337.64% to $112.8 million in 2024, then decreased by 23.33% to $86.5 million in 2025.
  • According to Business Quant data, Operating Income over the past three periods came in at $86.5 million, -$37.6 million, and -$34.1 million for Q4 2025, Q3 2025, and Q2 2025 respectively.