Filing Flows › Korro Bio (KRRO) › R&D spending
Korro Bio (KRRO) R&D spending by quarter
Korro Bio's R&D spending was $11.0M in Q4 2025 (fourth quarter 2025), -21% from Q3 2025. Over the last 5 quarters it ranged from $11.0M (Q4 2025) to $20.1M (Q2 2025).
| Quarter | R&D spending | Q/Q | Y/Y |
|---|---|---|---|
| Q4 2025 | $11.0M | -21% | -35% |
| Q3 2025 | $13.8M | -31% | — |
| Q2 2025 | $20.1M | +2% | — |
| Q1 2025 | $19.7M | +16% | — |
| Q4 2024 | $17.0M | — | — |
Q4 2025 at a glance
Korro Bio, Q4 2025: revenue $1.3M (-43% year over year), net loss $50.0M, operating cash flow −$17.7M. The chart follows the revenue to costs, profit and cash.
Questions
What is Korro Bio's R&D spending?
Korro Bio's R&D spending was $11.0M in Q4 2025 (fourth quarter 2025), -21% from Q3 2025.
How has Korro Bio's R&D spending changed?
Over the last 5 quarters it ranged from $11.0M (Q4 2025) to $20.1M (Q2 2025).