Alector, Inc.ALECNASDAQ
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R&D Expense Growth Under PressureDecelerating
Percentile Rank46
3Y CAGR-45.5%
5Y CAGR+5.4%
Year-over-Year Change
Year-over-year research & development expense growth
3Y CAGR
-45.5%/yr
vs -2.5%/yr prior
5Y CAGR
+5.4%/yr
Recent deceleration
Acceleration
-42.9pp
Decelerating
Percentile
P46
Within normal range
vs 5Y Ago
1.3x
Solid growth
Streak
1 qtr
Consecutive declineDecelerating
| Period | Value |
|---|---|
| Q4 2025 | 1.67% |
| Q3 2025 | 11.01% |
| Q2 2025 | -17.92% |
| Q1 2025 | -30.98% |
| Q4 2024 | 1.55% |
| Q3 2024 | 9.00% |
| Q2 2024 | 2.70% |
| Q1 2024 | -5.69% |
| Q4 2023 | -16.00% |
| Q3 2023 | -1.72% |
| Q2 2023 | 2.02% |
| Q1 2023 | -5.44% |
| Q4 2022 | 10.33% |
| Q3 2022 | -10.52% |
| Q2 2022 | 9.03% |
| Q1 2022 | -11.58% |
| Q4 2021 | 34.31% |
| Q3 2021 | -6.59% |
| Q2 2021 | 4.56% |
| Q1 2021 | 3.04% |
| Q4 2020 | 1.29% |
| Q3 2020 | 28.64% |
| Q2 2020 | -1.57% |
| Q1 2020 | 34.33% |
| Q4 2019 | -9.67% |
| Q3 2019 | 11.23% |
| Q2 2019 | 24.42% |
| Q1 2019 | -14.48% |
| Q4 2018 | 18.17% |
| Q3 2018 | 21.25% |
| Q2 2018 | 43.45% |
| Q1 2018 | 8.17% |
| Q4 2017 | 35.76% |
| Q3 2017 | 43.97% |
| Q2 2017 | 0.00% |
| Q1 2017 | 0.00% |