KRRO
KRRO
Korro Bio, Inc.Income Statement
| Period | Revenue | Operating Expense | Net Income | Net Profit Margin | Earnings Per Share | EBITDA |
|---|---|---|---|---|---|---|
| Q3-2025 | $1.09M ▼ | $20.33M ▼ | $-18.06M ▲ | -1.66K% ▲ | $-1.92 ▲ | $-16.88M ▲ |
| Q2-2025 | $1.46M ▼ | $28.66M ▲ | $-25.77M ▼ | -1.77K% ▼ | $-2.74 ▼ | $-25.98M ▼ |
| Q1-2025 | $2.55M ▲ | $27.57M ▲ | $-23.39M ▼ | -917.14% ▲ | $-2.49 ▼ | $-23.8M ▼ |
| Q4-2024 | $2.27M ▲ | $25.31M ▲ | $-21.2M ▼ | -933.47% ▼ | $-2.26 | $-21.79M ▲ |
| Q3-2024 | $0 | $23.29M | $-21M | 0% | $-2.26 | $-22.43M |
What's going well?
The company managed to cut its losses by reducing expenses, especially in R&D and overhead. The bottom line improved significantly compared to last quarter.
What's concerning?
Revenue is dropping quickly, and the company is still losing far more money than it brings in. Cutting sales and marketing to zero may hurt future growth, and the path to profitability is unclear.
Balance Statement
| Period | Cash & Short-term | Total Assets | Total Liabilities | Total Equity |
|---|---|---|---|---|
| Q3-2025 | $93.48M ▼ | $161.55M ▼ | $62.52M ▼ | $99.03M ▼ |
| Q2-2025 | $96.36M ▼ | $180.43M ▼ | $65.32M ▲ | $115.1M ▼ |
| Q1-2025 | $114.95M ▼ | $202.21M ▼ | $63.25M ▼ | $138.96M ▼ |
| Q4-2024 | $126.09M ▼ | $226.24M ▼ | $65.83M ▲ | $160.41M ▼ |
| Q3-2024 | $137M | $243.54M | $63.91M | $179.63M |
What's financially strong about this company?
KRRO has plenty of cash and investments, very little short-term debt, and no risky intangible assets. It can easily cover its bills and has a conservative capital structure.
What are the financial risks or weaknesses?
Shareholder equity dropped this quarter, and retained earnings are deeply negative, showing a history of losses. Cash and investments also dipped slightly.
Cash Flow Statement
| Period | Net Income | Cash From Operations | Cash From Investing | Cash From Financing | Net Change | Free Cash Flow |
|---|---|---|---|---|---|---|
| Q3-2025 | $-18.06M ▲ | $-17.18M ▲ | $7.6M ▲ | $128K ▲ | $-9.46M ▲ | $-17.35M ▲ |
| Q2-2025 | $-25.77M ▼ | $-19.23M ▲ | $-11.3M ▼ | $5K ▼ | $-29.53M ▼ | $-19.37M ▲ |
| Q1-2025 | $-23.39M ▼ | $-24.45M ▼ | $32.78M ▲ | $172K ▼ | $8.5M ▲ | $-24.57M ▼ |
| Q4-2024 | $-21.2M ▼ | $-7.5M ▲ | $-2.77M ▲ | $932K ▲ | $-9.33M ▲ | $-8.95M ▲ |
| Q3-2024 | $-21M | $-16.09M | $-12.58M | $728K | $-27.95M | $-20.97M |
What's strong about this company's cash flow?
The company is reducing its losses and cash burn each quarter, showing some progress toward stability. Capital spending is low, so most cash outflows are from core operations.
What are the cash flow concerns?
KRRO is still losing real cash every quarter, with only $25 million left—at this pace, it will need new funding soon. Working capital changes hurt cash flow this quarter, and there are no shareholder returns.
5-Year Trend Analysis
A comprehensive look at Korro Bio, Inc.'s financial evolution and strategic trajectory over the past five years.
Korro Bio’s strengths are anchored in its specialized RNA-editing platform, deep scientific expertise around ADAR biology, and a clear focus on high medical-need indications. The company has generally maintained strong liquidity ratios and has demonstrated the ability to raise capital and rebuild equity when needed. Its R&D intensity underscores a commitment to innovation, and a diversified pipeline strategy offers multiple shots on goal rather than reliance on a single asset.
The main risks stem from persistent and growing losses, negative free cash flow, and a shrinking cash cushion that will likely necessitate further external financing. Revenue is minimal and inconsistent, leaving the company entirely dependent on capital markets and partnerships. The clinical setback in its lead program, rising competition in RNA editing, and uncertainty around key collaborations increase execution and funding risk. Balance sheet volatility and highly negative retained earnings highlight the financial fragility that often accompanies such a development-heavy model.
Looking ahead, Korro Bio appears to be at a pivotal stage. Financially, it remains in a prolonged investment phase with no near-term prospect of self-sustaining profitability, so the trajectory will be heavily shaped by its ability to control cash burn and access new funding. Strategically, the future hinges on whether the revamped pipeline can deliver compelling human data and whether the OPERA platform can differentiate itself in a crowded field. If upcoming programs validate the technology, the company’s current financial strain could eventually give way to a more sustainable model; if not, the combination of scientific and funding pressures may become increasingly challenging to manage.
About Korro Bio, Inc.
https://www.korrobio.comKorro Bio, Inc., a biopharmaceutical company, discovers, develops, and commercializes genetic medicines based on editing RNA for the treatment of rare and highly prevalent diseases. Korro Bio, Inc. is based in Cambridge, Massachusetts.
Income Statement
| Period | Revenue | Operating Expense | Net Income | Net Profit Margin | Earnings Per Share | EBITDA |
|---|---|---|---|---|---|---|
| Q3-2025 | $1.09M ▼ | $20.33M ▼ | $-18.06M ▲ | -1.66K% ▲ | $-1.92 ▲ | $-16.88M ▲ |
| Q2-2025 | $1.46M ▼ | $28.66M ▲ | $-25.77M ▼ | -1.77K% ▼ | $-2.74 ▼ | $-25.98M ▼ |
| Q1-2025 | $2.55M ▲ | $27.57M ▲ | $-23.39M ▼ | -917.14% ▲ | $-2.49 ▼ | $-23.8M ▼ |
| Q4-2024 | $2.27M ▲ | $25.31M ▲ | $-21.2M ▼ | -933.47% ▼ | $-2.26 | $-21.79M ▲ |
| Q3-2024 | $0 | $23.29M | $-21M | 0% | $-2.26 | $-22.43M |
What's going well?
The company managed to cut its losses by reducing expenses, especially in R&D and overhead. The bottom line improved significantly compared to last quarter.
What's concerning?
Revenue is dropping quickly, and the company is still losing far more money than it brings in. Cutting sales and marketing to zero may hurt future growth, and the path to profitability is unclear.
Balance Statement
| Period | Cash & Short-term | Total Assets | Total Liabilities | Total Equity |
|---|---|---|---|---|
| Q3-2025 | $93.48M ▼ | $161.55M ▼ | $62.52M ▼ | $99.03M ▼ |
| Q2-2025 | $96.36M ▼ | $180.43M ▼ | $65.32M ▲ | $115.1M ▼ |
| Q1-2025 | $114.95M ▼ | $202.21M ▼ | $63.25M ▼ | $138.96M ▼ |
| Q4-2024 | $126.09M ▼ | $226.24M ▼ | $65.83M ▲ | $160.41M ▼ |
| Q3-2024 | $137M | $243.54M | $63.91M | $179.63M |
What's financially strong about this company?
KRRO has plenty of cash and investments, very little short-term debt, and no risky intangible assets. It can easily cover its bills and has a conservative capital structure.
What are the financial risks or weaknesses?
Shareholder equity dropped this quarter, and retained earnings are deeply negative, showing a history of losses. Cash and investments also dipped slightly.
Cash Flow Statement
| Period | Net Income | Cash From Operations | Cash From Investing | Cash From Financing | Net Change | Free Cash Flow |
|---|---|---|---|---|---|---|
| Q3-2025 | $-18.06M ▲ | $-17.18M ▲ | $7.6M ▲ | $128K ▲ | $-9.46M ▲ | $-17.35M ▲ |
| Q2-2025 | $-25.77M ▼ | $-19.23M ▲ | $-11.3M ▼ | $5K ▼ | $-29.53M ▼ | $-19.37M ▲ |
| Q1-2025 | $-23.39M ▼ | $-24.45M ▼ | $32.78M ▲ | $172K ▼ | $8.5M ▲ | $-24.57M ▼ |
| Q4-2024 | $-21.2M ▼ | $-7.5M ▲ | $-2.77M ▲ | $932K ▲ | $-9.33M ▲ | $-8.95M ▲ |
| Q3-2024 | $-21M | $-16.09M | $-12.58M | $728K | $-27.95M | $-20.97M |
What's strong about this company's cash flow?
The company is reducing its losses and cash burn each quarter, showing some progress toward stability. Capital spending is low, so most cash outflows are from core operations.
What are the cash flow concerns?
KRRO is still losing real cash every quarter, with only $25 million left—at this pace, it will need new funding soon. Working capital changes hurt cash flow this quarter, and there are no shareholder returns.
5-Year Trend Analysis
A comprehensive look at Korro Bio, Inc.'s financial evolution and strategic trajectory over the past five years.
Korro Bio’s strengths are anchored in its specialized RNA-editing platform, deep scientific expertise around ADAR biology, and a clear focus on high medical-need indications. The company has generally maintained strong liquidity ratios and has demonstrated the ability to raise capital and rebuild equity when needed. Its R&D intensity underscores a commitment to innovation, and a diversified pipeline strategy offers multiple shots on goal rather than reliance on a single asset.
The main risks stem from persistent and growing losses, negative free cash flow, and a shrinking cash cushion that will likely necessitate further external financing. Revenue is minimal and inconsistent, leaving the company entirely dependent on capital markets and partnerships. The clinical setback in its lead program, rising competition in RNA editing, and uncertainty around key collaborations increase execution and funding risk. Balance sheet volatility and highly negative retained earnings highlight the financial fragility that often accompanies such a development-heavy model.
Looking ahead, Korro Bio appears to be at a pivotal stage. Financially, it remains in a prolonged investment phase with no near-term prospect of self-sustaining profitability, so the trajectory will be heavily shaped by its ability to control cash burn and access new funding. Strategically, the future hinges on whether the revamped pipeline can deliver compelling human data and whether the OPERA platform can differentiate itself in a crowded field. If upcoming programs validate the technology, the company’s current financial strain could eventually give way to a more sustainable model; if not, the combination of scientific and funding pressures may become increasingly challenging to manage.

CEO
Ram Aiyar MBA,
Compensation Summary
(Year 2024)
Upcoming Earnings
Split Record
| Date | Type | Ratio |
|---|---|---|
| 2023-11-06 | Reverse | 1:50 |
ETFs Holding This Stock
Summary
Showing Top 3 of 55
Ratings Snapshot
Rating : C
Most Recent Analyst Grades
Clear Street
Buy
William Blair
Outperform
Chardan Capital
Buy
HC Wainwright & Co.
Buy
Piper Sandler
Overweight
Oppenheimer
Outperform
Grade Summary
Showing Top 6 of 10
Price Target
Institutional Ownership
ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC
Shares:1.14M
Value:$13.79M
NEA MANAGEMENT COMPANY, LLC
Shares:1.09M
Value:$13.23M
LYNX1 CAPITAL MANAGEMENT LP
Shares:677.91K
Value:$8.22M
Summary
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