Filing Flows › Alector (ALEC) › R&D spending
Alector (ALEC) R&D spending by quarter
Alector's R&D spending was $30.0M in Q3 2026 (third quarter 2026), +54% from Q2 2026. Over the last 7 quarters it ranged from $17.9M (Q1 2026) to $33.6M (Q1 2025).
| Quarter | R&D spending | Q/Q | Y/Y |
|---|---|---|---|
| Q3 2026 | $30.0M | +54% | +2% |
| Q2 2026 | $19.5M | +9% | -30% |
| Q1 2026 | $17.9M | -45% | -47% |
| Q4 2025 | $32.5M | +11% | — |
| Q3 2025 | $29.4M | +6% | — |
| Q2 2025 | $27.6M | -18% | — |
| Q1 2025 | $33.6M | — | — |
Q3 2026 at a glance
Alector, Q3 2026: revenue $163M (50× year over year), operating margin 76.0%, net earnings $125M, operating cash flow −$24.2M. The chart follows the revenue to costs, profit and cash.
Questions
What is Alector's R&D spending?
Alector's R&D spending was $30.0M in Q3 2026 (third quarter 2026), +54% from Q2 2026.
How has Alector's R&D spending changed?
Over the last 7 quarters it ranged from $17.9M (Q1 2026) to $33.6M (Q1 2025).