Alector Inc (ALEC) financials
Alector revenue and earnings by year
Alector's revenue was $21.0 million in the fiscal year to December 31, 2025, down 79.1% from the year before. Net income was -$143 million, -679.2% of revenue. Since the fiscal year to December 31, 2016, revenue has grown 54.7% a year on average.
Fiscal years, each labelled by the calendar year it ended in.
Income statement, the last 10 fiscal years
| Fiscal year to | Dec 2025 | Dec 2024 | Dec 2023 | Dec 2022 | Dec 2021 | Dec 2020 | Dec 2019 | Dec 2018 | Dec 2017 | Dec 2016 |
|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | 21 | 101 | 97 | 134 | 207 | 21 | 21 | 28 | 4 | 0 |
| Revenue growth | -79.1% | 3.6% | -27.4% | -35.5% | 881.5% | -0.6% | -23.3% | 641.0% | 797.8% | — |
| Operating income | -156 | -145 | -152 | -138 | -37 | -195 | -114 | -57 | -33 | -15 |
| Operating margin | -741.3% | -144.2% | -156.3% | -103.2% | -18.0% | -925.1% | -539.2% | -207.0% | -874.9% | -3637.5% |
| Net income | -143 | -119 | -130 | -133 | -36 | -190 | -105 | -52 | -32 | -15 |
| Net margin | -679.2% | -118.4% | -134.3% | -99.8% | -17.5% | -901.6% | -496.7% | -188.8% | -869.6% | -3632.2% |
| Diluted EPS | -$1.39 | -$1.23 | -$1.56 | -$1.62 | -$0.54 | -$2.45 | -$1.71 | -$4.61 | — | — |
| Free cash flow | -184 | -231 | -187 | -24 | 295 | -172 | -115 | 126 | -19 | -15 |
Diluted EPS is stated in today's shares (adjusted for every split since). Quarterly statements and the income statement as a flow chart are in the app: open ALEC in Markets.
See also: ALEC returns
No forecast, no recommendation. This page describes Alector Inc from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.