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KRRO logoKorro Bio, Inc.(KRRO)Earnings, Financials & Key Ratios

KRRO•NASDAQ
$13.34
$125M mkt cap·Price updated May 6, 2026
SectorHealthcareIndustryBiotechnologySub-IndustryRNA and Genome Editing Developers
AboutKorro 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.Show more
  • Revenue$6M+181.5%
  • EBITDA-$83M+6.0%
  • Net Income-$117M-40.3%
  • EPS (Diluted)-12.48-33.2%
  • Gross Margin33.04%-67.0%
  • EBITDA Margin-1299.47%+66.6%
  • Operating Margin-1366.43%+66.2%
  • Net Margin-1834.48%+50.2%
  • ROE-110.7%-118.8%
  • ROIC-58.85%+20.4%
  • Debt/Equity0.85+202.9%
Technical→

KRRO Key Insights

Korro Bio, Inc. (KRRO) fundamental analysis — strengths, weaknesses & financial health based on data analysis

✓Strengths

No significant strengths identified

✗Weaknesses

  • ✗Profits declining 34.6% over 5 years
  • ✗Weak Piotroski F-Score: 2/9
  • ✗Negative free cash flow
  • ✗Sales declining 29.6% over 5 years
  • ✗Trading more than 30% below 52-week high
  • ✗Low asset turnover indicates capital-intensive operations

* These insights are generated automatically based on available financial data. Please conduct your own research before making investment decisions.

KRRO Price & Volume

Korro Bio, Inc. (KRRO) stock price & volume — 10-year historical chart

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KRRO Growth Metrics

Korro Bio, Inc. (KRRO) revenue, earnings & EPS growth — 3, 5 & 10-year CAGR

Revenue CAGR

10 Years-
5 Years-29.61%
3 Years-
TTM181.46%

Profit CAGR

10 Years-
5 Years-
3 Years-
TTM-40.29%

EPS CAGR

10 Years-
5 Years-
3 Years-
TTM-32.91%

Return on Capital

10 Years-49.4%
5 Years-50.75%
3 Years-54.52%
Last Year-55.84%

KRRO Recent Earnings

Korro Bio, Inc. (KRRO) EPS & revenue vs analyst estimates — last 4 quarters

Full history →
●Beat EPS 6/12 qtrs (50%)●Beat Revenue 4/12 qtrs (100%)
Q2 2026Latest
Mar 12, 2026
EPS
$5.32
Est $1.93
-175.6%
Revenue
$1M
Est $700,000
+85.7%
Q4 2025
Nov 12, 2025
EPS
$1.92
Est $2.61
+26.4%
Revenue
$1M
Est $425,000
+156.5%
Q3 2025
Aug 12, 2025
EPS
$2.74
Est $2.54
-7.9%
Revenue
$1M
Est $320,780
+355.1%
Q2 2025
May 7, 2025
EPS
$2.49
Est $2.60
+4.2%
Revenue
$3M
Est $426,900
+497.3%
QuarterDateEPS (Act vs Est)Revenue (Act vs Est)
Q2 2026LatestMar 12, 2026
$5.32vs $1.93-175.6%
$1Mvs $700,000+85.7%
Q4 2025Nov 12, 2025
$1.92vs $2.61+26.4%
$1Mvs $425,000+156.5%
Q3 2025Aug 12, 2025
$2.74vs $2.54-7.9%
$1Mvs $320,780+355.1%
Q2 2025May 7, 2025
$2.49vs $2.60+4.2%
$3Mvs $426,900+497.3%
Based on last 12 quarters of dataView full earnings history →

KRRO Peer Comparison

Korro Bio, Inc. (KRRO) competitors in RNA and Genome Editing Developers — business model, growth, and fundamentals comparison

Select Columns
Stock Universe
Valuation
Growth
Profitability
Financial Health
Dividends & Buybacks
Price Performance
Technical
Fundamentals ($)
Sector-Specific
CompanyMarket CapStock PriceP/E Ratio (TTM)Revenue Growth 1YNet MarginReturn on Equity (ROE)FCF YieldDebt / Equity
BEAM logoBEAMBeam Therapeutics Inc.Direct Competitor3.32B32.33-39.92120.01%-57.24%-7.31%0.24
EDIT logoEDITEditas Medicine, Inc.Direct Competitor310.73M3.18-1.76-100%-5.23%0.66
CRSP logoCRSPCRISPR Therapeutics AGDirect Competitor5.31B55.08-8.51-89.97%-138.57%-30.88%0.21
NTLA logoNTLAIntellia Therapeutics, Inc.Direct Competitor1.61B13.85-3.64-100%-61.47%0.14
PRME logoPRMEPrime Medicine, Inc.Direct Competitor615.68M3.41-2.5355.28%-43.42%-178.61%0.96
RCKT logoRCKTRocket Pharmaceuticals, Inc.Product Competitor418.11M3.86-1.92-80.49%0.09
FATE logoFATEFate Therapeutics, Inc.Product Competitor264.17M2.29-1.99-51.24%-20.51%-65.79%0.38
ILMN logoILMNIllumina, Inc.Supply Chain21.66B142.5826.16-0.78%19.43%32.84%0.94

Compare KRRO vs Peers

Korro Bio, Inc. (KRRO) vs competitors — business, growth, and fundamentals comparison against the closest industry rivals.

Closest Rival

vs BEAM

Most directly comparable listed peer for KRRO.

Scale Benchmark

vs TMO

Larger-name benchmark to compare KRRO against a more recognizable public peer.

Peer Set

Compare Top 5

vs BEAM, EDIT, CRSP, NTLA

KRRO Income Statement

Korro Bio, Inc. (KRRO) annual income statement — 10-year revenue, gross profit & net income history

10Y historyFree accessUpdated daily
Line itemDec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24Dec'25
Sales/Revenue0028.95M36.98M14.07M002.27M6.39M
Revenue Growth %---27.76%-61.96%-100%--181.46%
Cost of Goods Sold531K654K16.81M1.58M3.84M0004.28M
COGS % of Revenue--58.08%4.27%27.3%---66.96%
Gross Profit
-531K▲ 0%
-654K▼ 23.2%
12.13M▲ 1955.4%
35.4M▲ 191.8%
10.23M▼ 71.1%
0▼ 100.0%
0▲ 0%
2.27M▲ 0%
2.11M▼ 7.0%
Gross Margin %--41.92%95.73%72.7%--100%33.04%
Gross Profit Growth %--23.16%1955.35%191.78%-71.11%-100%---7%
Operating Expenses15.78M18.29M32.81M62.95M94.26M59M84.53M94.18M89.45M
OpEx % of Revenue--113.34%170.22%670.02%--4147.12%1399.47%
Selling, General & Admin3.99M6.71M14.47M26.3M34.93M16.8M36.54M30.55M28.16M
SG&A % of Revenue--50.01%71.11%248.32%--1345%440.54%
Research & Development11.79M11.58M18.33M36.66M59.32M42.2M57.25M63.64M65.58M
R&D % of Revenue--63.34%99.11%421.69%--2802.11%1025.89%
Other Operating Expenses000000-9.25M0-4.28M
Operating Income
-16.31M▲ 0%
-18.94M▼ 16.2%
-20.68M▼ 9.1%
-27.55M▼ 33.3%
-84.03M▼ 205.0%
-59M▲ 29.8%
-84.53M▼ 43.3%
-91.91M▼ 8.7%
-87.34M▲ 5.0%
Operating Margin %---71.42%-74.49%-597.32%---4047.12%-1366.43%
Operating Income Growth %--16.18%-9.14%-33.25%-205.01%29.79%-43.28%-8.73%4.97%
EBITDA-15.78M-18.29M-19.86M-25.97M-80.19M-56.49M-80.9M-88.34M-83.06M
EBITDA Margin %---68.62%-70.22%-570.02%---3890.14%-1299.47%
EBITDA Growth %--15.94%-8.59%-30.75%-208.78%29.56%-43.23%-9.2%5.98%
D&A (Non-Cash Add-back)531K654K813K1.58M3.84M2.51M3.63M3.56M4.28M
EBIT-20.06M-19.06M-18.75M-26.48M-83.91M-59M-84.53M-91.91M-87.34M
Net Interest Income001.78M994K-367K829K000
Interest Income001.78M994K397K947K000
Interest Expense174K106K00764K118K000
Other Income/Expense-3.93M-224K1.93M1.07M-640K976K3.39M8.47M-29.28M
Pretax Income
-20.24M▲ 0%
-19.17M▲ 5.3%
-18.75M▲ 2.2%
-26.48M▼ 41.2%
-84.67M▼ 219.8%
-58.02M▲ 31.5%
-81.14M▼ 39.9%
-83.44M▼ 2.8%
-116.62M▼ 39.8%
Pretax Margin %---64.76%-71.59%-601.87%---3674.15%-1824.51%
Income Tax00035K15K10K27K141K637K
Effective Tax Rate %0%0%0%-0.13%-0.02%-0.02%-0.03%-0.17%-0.55%
Net Income
-20.24M▲ 0%
-19.17M▲ 5.3%
-18.75M▲ 2.2%
-26.51M▼ 41.4%
-84.69M▼ 219.4%
-58.03M▲ 31.5%
-81.17M▼ 39.9%
-83.58M▼ 3.0%
-117.26M▼ 40.3%
Net Margin %---64.76%-71.68%-601.98%---3680.36%-1834.48%
Net Income Growth %-5.28%2.2%-41.42%-219.44%31.47%-39.87%-2.97%-40.29%
Net Income (Continuing)-20.24M-19.17M-18.75M-26.51M-84.69M-58.03M-81.17M-83.58M-117.26M
Discontinued Operations000000000
Minority Interest03.77M0000000
EPS (Diluted)
-32.27▲ 0%
-30.57▲ 5.3%
-30.39▲ 0.6%
-41.10▼ 35.2%
-4.94▲ 88.0%
-227.42▼ 4503.6%
-53.08▲ 76.7%
-9.37▲ 82.3%
-12.48▼ 33.2%
EPS Growth %-5.27%0.59%-35.24%87.98%-4503.64%76.66%82.35%-33.19%
EPS (Basic)-32.27-30.57-30.39-41.10-4.94-227.58-53.09-9.37-12.48
Diluted Shares Outstanding627.09K627.09K616.89K645.06K4.45M255.17K1.53M8.92M9.4M
Basic Shares Outstanding627.09K627.09K616.89K645.06K4.45M255K1.53M8.92M9.4M
Dividend Payout Ratio---------

KRRO Balance Sheet

Korro Bio, Inc. (KRRO) balance sheet — assets, liabilities & shareholders' equity

Line itemDec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24Dec'25
Total Current Assets17.95M42.94M221.35M225.06M134.75M57.08M172.73M131.53M82.37M
Cash & Short-Term Investments17.94M42.19M217.35M220.34M130.71M55.85M166.15M126.09M75.16M
Cash Only17.94M42.19M200.16M220.34M79.64M36.94M166.15M55.64M21.82M
Short-Term Investments0017.2M051.07M18.91M070.45M53.33M
Accounts Receivable0161K805K340K144K001.7M969K
Days Sales Outstanding--10.153.363.74--272.5855.33
Inventory000000000
Days Inventory Outstanding---------
Other Current Assets15K587K1M1.83M1.04M-376K3.56M3.74M6.25M
Total Non-Current Assets1.83M1.61M1.86M39.66M50.61M16.66M48.94M94.71M31.13M
Property, Plant & Equipment1.73M1.51M1.76M37.84M36.87M11.89M42.81M51.55M16.22M
Fixed Asset Turnover--16.43x0.98x0.38x--0.04x0.39x
Goodwill000000000
Intangible Assets000000000
Long-Term Investments0001.82M13.42M4.54M036.96M0
Other Non-Current Assets103K100K101K0320K228K6.12M6.2M14.91M
Total Assets
19.79M▲ 0%
44.55M▲ 125.1%
223.22M▲ 401.1%
264.72M▲ 18.6%
185.36M▼ 30.0%
73.74M▼ 60.2%
221.66M▲ 200.6%
226.24M▲ 2.1%
113.51M▼ 49.8%
Asset Turnover--0.13x0.14x0.08x--0.01x0.06x
Asset Growth %-125.14%401.07%18.59%-29.98%-60.22%200.59%2.06%-49.83%
Total Current Liabilities2.23M3.77M52.78M26.63M11.43M8.7M19.48M14.96M11.94M
Accounts Payable994K1.86M1.22M5.51M2.75M2.6M7.28M3.99M1.65M
Days Payables Outstanding683.261.04K26.461.27K261.14---140.8
Short-Term Debt000397K2.58M2.92M002.67M
Deferred Revenue (Current)0048.15M14.07M0003.51M7.83M
Other Current Liabilities479K876K3.41M1.6M1.73M551K395K4.05M-221K
Current Ratio8.07x11.38x4.19x8.45x11.79x6.56x8.87x8.79x6.90x
Quick Ratio8.07x11.38x4.19x8.45x11.79x6.56x8.87x8.79x6.90x
Cash Conversion Cycle---------
Total Non-Current Liabilities47.2M85.28M3.08M45.6M43.1M164.07M32.27M50.87M50.13M
Long-Term Debt46.69M84.94M015M14.17M163.86M000
Capital Lease Obligations00030.6M28.85M209K31.22M43.48M40.81M
Deferred Tax Liabilities000000000
Other Non-Current Liabilities510K349K180K087K01.05M1.47M1.48M
Total Liabilities49.43M89.06M55.86M72.23M54.53M172.77M51.75M65.83M62.07M
Total Debt46.69M84.94M045.99M45.6M166.99M33.21M44.77M43.49M
Net Debt28.76M42.75M-200.16M-174.35M-34.04M130.06M-132.94M-10.88M21.66M
Debt / Equity---0.24x0.35x-0.20x0.28x0.85x
Debt / EBITDA---------
Net Debt / EBITDA---------
Interest Coverage-115.30x-179.83x---109.83x-499.98x---
Total Equity
-29.64M▲ 0%
-44.51M▼ 50.2%
167.36M▲ 476.0%
192.49M▲ 15.0%
130.82M▼ 32.0%
-99.03M▼ 175.7%
169.91M▲ 271.6%
160.41M▼ 5.6%
51.44M▼ 67.9%
Equity Growth %--50.16%476.01%15.02%-32.04%-175.7%271.57%-5.59%-67.93%
Book Value per Share-47.27-70.98271.29298.4129.42-388.09111.1017.985.47
Total Shareholders' Equity-29.64M-48.28M167.36M192.49M130.82M-99.03M169.91M160.41M51.44M
Common Stock13K14K31K34K35K08K9K9K
Retained Earnings-29.92M-49.09M-68.89M-95.4M-180.09M-101.83M-183M-266.59M-383.85M
Treasury Stock000000000
Accumulated OCI0054K27K-62K-5K0268K212K
Minority Interest03.77M0000000

KRRO Cash Flow Statement

Korro Bio, Inc. (KRRO) cash flow — operating, investing & free cash flow history

Line itemDec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24Dec'25
Cash from Operations-14.61M-17.02M34.22M-45.19M-32.09M-53.65M-67.28M-60.07M-78.56M
Operating CF Margin %--118.2%-122.18%-228.13%---2645.27%-1229.05%
Operating CF Growth %--16.49%300.98%-232.07%28.98%-67.15%-25.42%10.71%-30.77%
Net Income-20.24M-19.17M-18.75M-10.23M-21.96M-58.03M-81.17M-83.58M-117.26M
Depreciation & Amortization531K654K813K1.58M1.59M2.51M3.63M3.56M3.79M
Stock-Based Compensation0000807K1.14M2.38M4.46M7.66M
Deferred Taxes00000-145K000
Other Non-Cash Items5.88M1.98M3.5M-6.3M-13.44M1.51M3.6M1.89M31.68M
Working Capital Changes276K819K48.65M-30.24M904K-633K4.28M13.59M-4.43M
Change in Receivables0000000-1.7M727K
Change in Inventory000000000
Change in Payables00-644K4.29M56K1.75M3.1M-1.34M-2.31M
Cash from Investing-1.86M3.34M-18.26M10.4M-39.5M11.06M11.16M-123.35M43.99M
Capital Expenditures-1.86M-436K-1.06M-6.67M-4.45M-5.21M-7.84M-17.9M-518K
CapEx % of Revenue--3.68%18.04%31.61%--788.29%8.1%
Acquisitions03.77M0000000
Investments---------
Other Investing000013K0000
Cash from Financing27.98M37.94M142.01M56.69M115.94M18K187.76M69.36M685K
Debt Issued (Net)05M015M00000
Equity Issued (Net)27.98M32.94M142.01M41.69M115.95M62K162.71M67.39M685K
Dividends Paid000000000
Share Repurchases000000000
Other Financing0000-2K-44K25.05M1.97M0
Net Change in Cash
11.5M▲ 0%
24.25M▲ 110.9%
157.97M▲ 551.4%
20.18M▼ 87.2%
44.35M▲ 119.7%
-42.57M▼ 196.0%
131.64M▲ 409.3%
-114.07M▼ 186.7%
-33.82M▲ 70.4%
Free Cash Flow
-16.48M▲ 0%
-17.46M▼ 6.0%
33.15M▲ 289.9%
-51.86M▼ 256.4%
-36.54M▲ 29.5%
-58.86M▼ 61.1%
-75.12M▼ 27.6%
-77.98M▼ 3.8%
-79.08M▼ 1.4%
FCF Margin %--114.52%-140.22%-259.75%---3433.55%-1237.16%
FCF Growth %--5.97%289.87%-256.43%29.54%-61.07%-27.63%-3.8%-1.41%
FCF per Share-26.28-27.8453.74-80.39-8.22-230.65-49.12-8.74-8.42
FCF Conversion (FCF/Net Income)0.72x0.89x-1.83x1.70x0.38x0.92x0.83x0.72x0.67x
Interest Paid000000000
Taxes Paid0000011K27K141K0

KRRO Key Ratios

Korro Bio, Inc. (KRRO) financial ratios — P/E, ROE, debt and 30+ core market and balance-sheet ratios

Metric201720182019202020212022202320242025
Return on Equity (ROE)---30.52%-14.73%-52.39%-365.06%-229.04%-50.61%-110.7%
Return on Invested Capital (ROIC)----113.88%-109.67%-69.24%-186.49%-73.92%-58.85%
Gross Margin--41.92%95.73%72.7%--100%33.04%
Net Margin---64.76%-71.68%-601.98%---3680.36%-1834.48%
Debt / Equity---0.24x0.35x-0.20x0.28x0.85x
Interest Coverage-115.30x-179.83x---109.83x-499.98x---
FCF Conversion0.72x0.89x-1.83x1.70x0.38x0.92x0.83x0.72x0.67x
Revenue Growth---27.76%-61.96%-100%--181.46%

KRRO SEC Filings & Documents

Korro Bio, Inc. (KRRO) SEC filings — annual & quarterly reports (10-K, 10-Q)

8-K Announcements

6
Material company update

Mar 12, 2026·SEC

Material company update

Mar 9, 2026·SEC

Material company update

Jan 27, 2026·SEC

10-K Annual Reports

2
FY 2026

Mar 12, 2026·SEC

FY 2025

Mar 18, 2025·SEC

10-Q Quarterly Reports

5
FY 2025

Nov 12, 2025·SEC

FY 2025

Aug 12, 2025·SEC

FY 2025

May 7, 2025·SEC

KRRO Frequently Asked Questions

Korro Bio, Inc. (KRRO) stock FAQ — growth, dividends, profitability & financials explained

Growth & Financials

Korro Bio, Inc. (KRRO) reported $6.4M in revenue for fiscal year 2025.

Korro Bio, Inc. (KRRO) grew revenue by 181.5% over the past year. This is strong growth.

Korro Bio, Inc. (KRRO) reported a net loss of $117.3M for fiscal year 2025.

Dividend & Returns

Korro Bio, Inc. (KRRO) has a return on equity (ROE) of -110.7%. Negative ROE indicates the company is unprofitable.

Korro Bio, Inc. (KRRO) had negative free cash flow of $79.1M in fiscal year 2025, likely due to heavy capital investments.

Explore More KRRO

Korro Bio, Inc. (KRRO) financial analysis — history, returns, DCA and operating performance tools

Total Return Calculator

Historical returns with dividends reinvested

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DCA Calculator

Dollar cost averaging vs lump sum

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Dividend History

Yield, growth, payout safety & DRIP

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Earnings History

EPS trends, net income & profitability

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Price History

Long-term charts & historical price data

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Revenue History

Sales growth patterns & revenue breakdown

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Financial Ratios

30 years of market, efficiency and balance-sheet ratios

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Valuation

DCF intrinsic value, peer multiples & estimates

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