Alector (ALEC) Tax Rate (2022 - 2025)

Alector (ALEC) reported Tax Rate of 0.45% for Q4 2025, down 440.0% year-over-year from 0.13% in Q4 2024, and down 111.47% quarter-over-quarter from 3.95% in Q4 2024.

Alector (ALEC) Tax Rate (2022 - 2025) Analysis & Trends

Alector (ALEC) has 4 years of Tax Rate data on file, last reported at 0.45% in Q4 2025.

  • Tax Rate for Q4 2025 came in at 0.45%, down 440.0% year-over-year; the trailing twelve-month figure through Mar 2026 was 0.13% (down 14.0% YoY), and the FY2025 annual result was 0.12%, changed N/A from the prior year.
  • Tax Rate eased to 0.45% in Q4 2025 per ALEC's latest filing, from 3.95% in the prior quarter.
  • Over five years, Tax Rate peaked at 50.33% in Q2 2023 and troughed at 2.9% in Q3 2023.
  • A 4-year average of 4.5% and a median of 0.32% in 2024 frame the typical range for Tax Rate.
  • The sharpest annual moves came in 2023 and 2024: Tax Rate jumped 4079 bps in 2023, then sank 5051 bps in 2024.
  • A 4-year view of Tax Rate shows it stood at 0.63% in 2022, then slumped by 354 bps to 1.59% in 2023, then soared by 348 bps to 3.95% in 2024, then sank by 111 bps to 0.45% in 2025.
  • Business Quant data shows ALEC's Tax Rate at 0.45% in Q4 2025, 3.95% in Q4 2024, and 0.19% in Q2 2024.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Tax Rate (Qtr)
1 Alterity Therapeutics 925,601.88 Bn 925,601.85 Bn - -
2 Belite Bio 58,560.00 Bn 58,560.00 Bn - -
3 Quantum Biopharma 17,284.41 Bn 17,284.40 Bn - -
4 Legend Biotech 2,809.00 Bn 2,808.71 Bn 242.10 Mn -57.14
5 Evaxion A 1,334.43 Bn 1,334.42 Bn - -6.79
6 Akari Therapeutics 1,312.27 Bn 1,312.26 Bn - 5.61
7 Psyence Biomedical 212.16 Bn 212.16 Bn - -
8 Vertex Pharmaceuticals 114.83 Bn 107.58 Bn 2.59 Bn 17.68
9 Abivax 91.96 Bn 91.96 Bn - -
10 Alector 193.53 Mn -12.98 Mn - -

Historic Data

Download Data
DateValue
Dec 31, 2025 -0.45%
Dec 31, 2025 -0.45%
Dec 31, 2024 3.95%
Dec 31, 2024 3.95%
Jun 30, 2024 -0.19%
Jun 30, 2024 -0.19%
Mar 31, 2024 -0.02%
Mar 31, 2024 -0.02%
Dec 31, 2023 -1.59%
Dec 31, 2023 -1.59%
Sep 30, 2023 -2.90%
Sep 30, 2023 -2.90%
Jun 30, 2023 50.33%
Jun 30, 2023 50.33%
Mar 31, 2023 -2.00%
Mar 31, 2023 -2.00%
Dec 31, 2022 0.63%
Dec 31, 2022 0.63%
Sep 30, 2022 -1.61%
Sep 30, 2022 -1.61%