NASDAQ$ALEC
Alector Inc · Q3 2025 earnings
Q3 2025 earnings · · After market close · Investor relations
Briefing
Alector reported Q3 2025, revenue of $5M, net loss of $45M.
For Q3 2025, Alector reported revenue of $5M, a net loss of $45M. Management discusses segment performance, capital allocation, and sector risks in the quarterly filing.
- Revenue $5M.
- Net loss $45M.
- Alector MD&A covers liquidity, credit, and operating priorities.
Headline financials
Revenue & EPS history
Alector · Revenue · Quarterly
$3.26M
Revenue by segment
Alector · $9.11M total across 1 segment · Q3 2023
- Collaboration Revenue$9.11M-38.7%100.0%
Forward guidance
Clinical or pre-revenue biotech outlook centers on trial milestones, partnerships, and cash runway.
Tailwinds
- Pipeline milestones and collaboration optionality.
- Cash and marketable securities fund operations.
Headwinds
- Trial failure or delay risk.
- Dilution from future financings.
Historical earnings impact
How earnings announcements have historically affected this stock's price.
Avg. return before/after earnings
Based on 20 quarterly earnings reports · overlaid with Q3 2025
+1.1%
Avg return
Earnings day
-1.0%
Avg return
5 days after
-5.5%
Avg return
30 days after
52%
15 / 29 earnings
Positive
+32.9%
Q2 2023
Best reaction
-18.4%
Q3 2022
Worst reaction
| Quarter | Report date | Reaction (Day 0) | +5 days | +30 days |
|---|---|---|---|---|
| Q1 2026 | -5.1% | -16.0% | -36.6% | |
| Q4 2025 | +7.1% | -11.7% | -16.3% | |
| Q3 2025 | +4.1% | +8.4% | -2.8% | |
| Q1 2025 | +4.2% | +7.4% | +23.8% | |
| Q4 2024 | -3.5% | -15.4% | -25.0% | |
| Q3 2024 | +12.8% | +21.3% | -56.8% | |
| Q2 2024 | +0.8% | +0.9% | -4.2% | |
| Q1 2024 | -1.9% | +1.7% | -17.7% | |
| Q4 2023 | +7.9% | +14.4% | -7.1% | |
| Q3 2023 | -2.6% | -17.7% | +6.0% | |
| Q2 2023 | +32.9% | +12.4% | -15.6% | |
| Q1 2023 | +13.0% | +20.6% | +8.5% | |
| Q4 2022 | +0.9% | -9.5% | -30.3% | |
| Q3 2022 | -18.4% | +3.1% | +3.1% | |
| Q2 2022 | +16.3% | +12.7% | -6.9% | |
| Q1 2022 | -12.7% | -20.0% | -11.9% | |
| Q4 2021 | +1.9% | -1.3% | -7.8% | |
| Q3 2021 | +2.3% | +4.1% | -20.7% | |
| Q2 2021 | +9.5% | +9.0% | +10.1% | |
| Q1 2021 | -7.8% | -12.4% | +6.1% | |
| Q4 2020 | -4.7% | -10.7% | -14.3% | |
| Q3 2020 | +0.4% | +7.2% | +25.2% | |
| Q2 2020 | -6.9% | -7.4% | -13.5% | |
| Q1 2020 | -5.0% | +0.3% | +3.7% | |
| Q4 2019 | -1.5% | -4.4% | +0.8% | |
| Q3 2019 | -6.1% | -4.2% | +19.5% | |
| Q2 2019 | -1.7% | -18.0% | +9.4% | |
| Q1 2019 | +4.9% | +1.3% | +0.2% | |
| Q4 2018 | -8.6% | -3.5% | +10.8% | |
| Q3 2018 | — | — | — | |
| Q2 2018 | — | — | — | |
| Q1 2018 | — | — | — | |
| Q4 2017 | — | — | — | |
| Q3 2017 | — | — | — | |
| Q2 2017 | — | — | — | |
| Q1 2017 | — | — | — |
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