Alector, Inc.ALECNASDAQ
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R&D Expenses Over TimeContracting
Percentile Rank44
3Y CAGR-16.4%
5Y CAGR-4.7%
Studio
Year-over-Year Change

Research and development spending

3Y CAGR
-16.4%/yr
vs +30.3%/yr prior
5Y CAGR
-4.7%/yr
Recent deceleration
Acceleration
-46.7pp
Decelerating
Percentile
P44
Within normal range
vs 5Y Ago
0.8x
Contraction
Streak
3 yr
Consecutive declineContracting
PeriodValueYoY Change
TTM$123.06M-33.8%
2024$185.94M-3.2%
2023$192.12M-8.7%
2022$210.42M+11.1%
2021$189.41M+20.7%
2020$156.87M+56.0%
2019$100.53M+37.7%
2018$73.03M+144.2%
2017$29.91M+118.7%
2016$13.67M-