Employee Count History - Alector, Inc.
Historical employee count data from SEC filings.
Workforce Trend Analysis
Employee Count History
SEC Filing History
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| Filing Date | Period | Employee Count | Form Type | YoY Change |
|---|---|---|---|---|
| Feb 25, 2026 | Dec 31, 2025 | 103 | 10-K | -56.72% |
| Feb 26, 2025 | Dec 31, 2024 | 238 | 10-K | -2.46% |
| Feb 27, 2024 | Dec 31, 2023 | 244 | 10-K | -10.62% |
| Feb 28, 2023 | Dec 31, 2022 | 273 | 10-K | +31.25% |
| Feb 24, 2022 | Dec 31, 2021 | 208 | 10-K | +21.64% |
| Feb 25, 2021 | Dec 31, 2020 | 171 | 10-K | +41.32% |
Mar 24, 2020 | Dec 31, 2019 | — | — | — |
Mar 26, 2019 | Dec 31, 2018 | — | — | — |