NASDAQ$KRRO
Korro Bio Inc · Q1 2026 earnings
Q1 2026 earnings · · Investor relations
Briefing
Korro Bio reported Q1 2026 with no collaboration revenue and a net loss of $19.6M as KRRO-121 development continues.
Korro had no collaboration revenue in Q1 2026 versus $2.6 million a year ago as prior partnership milestones rolled off. The net loss narrowed to $19.6 million from $23.4 million on lower R&D spend of $13.0 million. The company raised ~$85 million in a March 2026 PIPE and ended the quarter with a going-concern assessment tied to pre-commercial stage.
- Collaboration revenue $0 vs $2.6M YoY.
- Net loss $(19.6)M; R&D $13.0M vs $19.7M.
- March 2026 PIPE raised ~$85M gross.
- Accumulated deficit exceeds $403M.
- KRRO-121 regulatory path remains key catalyst.
Headline financials
Revenue & EPS history
Korro Bio · Revenue · Quarterly
$0
Forward guidance
Filings focus on KRRO-121 clinical timelines, partnership optionality, and cash runway rather than revenue guidance.
Tailwinds
- Loss narrowed on lower R&D burn.
- Fresh equity strengthens balance sheet.
Headwinds
- No product revenue; dependence on capital markets.
- Clinical and regulatory milestones drive volatility.
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 Q1 2026
-4.6%
Avg return
Earnings day
+4.3%
Avg return
5 days after
+1.9%
Avg return
30 days after
43%
10 / 23 earnings
Positive
+20.6%
Q4 2023
Best reaction
-79.3%
Q3 2025
Worst reaction
| Quarter | Report date | Reaction (Day 0) | +5 days | +30 days |
|---|---|---|---|---|
| Q1 2026 | -4.3% | -16.3% | -20.5% | |
| Q4 2025 | -0.4% | +14.5% | +20.4% | |
| Q3 2025 | -79.3% | -80.2% | -73.8% | |
| Q1 2025 | +4.1% | -2.0% | -11.8% | |
| Q4 2024 | -5.3% | -5.7% | -1.6% | |
| Q3 2024 | -25.2% | -35.3% | -40.2% | |
| Q2 2024 | +10.4% | +22.1% | +12.4% | |
| Q1 2024 | +5.0% | +8.8% | -15.4% | |
| Q4 2023 | +20.6% | +22.6% | -20.3% | |
| Q3 2023 | +9.4% | +192.6% | +246.3% | |
| Q2 2023 | -4.1% | -1.4% | -39.0% | |
| Q1 2023 | -5.6% | +6.2% | +1.9% | |
| Q4 2022 | +3.1% | -2.4% | -24.2% | |
| Q3 2022 | -5.8% | +4.4% | -11.1% | |
| Q2 2022 | -11.1% | -10.7% | -4.9% | |
| Q1 2022 | +4.0% | +1.6% | -8.0% | |
| Q3 2021 | +3.2% | -3.5% | -17.0% | |
| Q2 2021 | +0.5% | -9.9% | -12.3% | |
| Q1 2021 | -20.3% | -14.6% | -4.6% | |
| Q3 2020 | -6.4% | +4.6% | +59.7% | |
| Q2 2020 | -1.7% | -4.2% | -19.8% | |
| Q1 2020 | -1.1% | +5.1% | +16.0% | |
| Q3 2019 | +4.8% | +3.6% | +11.4% |
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