Korro Bio annual operating margin
2019
2020
2021
2024
2025
Korro Bio Operating Margin Growth & History (KRRO)
Korro Bio's operating margin was −1,906.37% for fiscal 2025.
View full Korro Bio company overviewKorro Bio annual operating margin history
| Fiscal year | Period ended | Operating margin | Change (percentage points) |
|---|---|---|---|
| 2025 | 2025-12-31 | −1,906.37% | +2140.75 pp |
| 2024 | 2024-12-31 | −4,047.12% | −3449.80 pp |
| 2021 | 2021-12-31 | −597.32% | −522.83 pp |
| 2020 | 2020-12-31 | −74.49% | −3.07 pp |
| 2019 | 2019-12-31 | −71.42% | — |
Korro Bio quarterly operating margin
Q3.19
Q1.20
Q2.20
Q3.20
Q4.20
Q1.21
Q2.21
Q4.24
Q1.25
Q2.25
Q3.25
Q4.25
| Fiscal quarter | Period ended | Operating margin | Change (percentage points) |
|---|---|---|---|
| Q4 2025 | 2025-12-31 | −3,900.62% | −2886.09 pp |
| Q3 2025 | 2025-09-30 | −1,764.86% | −1579.21 pp |
| Q2 2025 | 2025-06-30 | −1,863.15% | −1428.86 pp |
| Q1 2025 | 2025-03-31 | −981.18% | −877.89 pp |
| Q4 2024 | 2024-12-31 | −1,014.53% | −966.36 pp |
| Q2 2021 | 2021-06-30 | −185.65% | −112.91 pp |
| Q1 2021 | 2021-03-31 | −434.29% | −356.44 pp |
| Q4 2020 | 2020-12-31 | −103.29% | −98.12 pp |
| Q3 2020 | 2020-09-30 | −48.17% | — |
| Q2 2020 | 2020-06-30 | −72.74% | — |
| Q1 2020 | 2020-03-31 | −77.85% | — |
| Q3 2019 | 2019-09-30 | −5.17% | — |
Korro Bio operating margin trends
Across the available reported history, Korro Bio's operating margin increased from −4,047.12% to −1,906.37%, a change of +2140.75 percentage points. The latest reported quarter, Q4 2025, shows −3,900.62%.
About the metric
What operating margin means
Operating margin measures the percentage of revenue left after operating costs and expenses. It shows how much operating profit a company generates from each dollar of revenue.
Calculation and source
How operating margin is calculated
TickerStat calculates operating margin as SEC-reported operating income divided by SEC-reported revenue for the same fiscal period. Changes are shown in percentage points. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Korro Bio filings at SEC.gov ↗