Korro Bio, Inc. KRRO

9.57 0.00 0.00% as of 25 Sep
Market cap
$140.9M
P/E
0.0×
Insider Buys alert about insiders buying in the last 12 month

Insider Decisions

Total buys 20.79
Total sells 5.70
in millions of $
Nov 25 Feb 26 May 26 Aug 26
Buy — — — — — 10 — — — — 1 —
Sell — — — — — — — 2 5 1 4 3
Insider Ownership 41.71%

Capital & Financial Ratios

Market Cap 140.92
Revenue 6.39
Net Income (106.64)
Free Cash Flow (68.26)
Net Debt (115.04)
Current Ratio 9.55
Debt/Equity 0.00
P/E ratio 0.00
P/S ratio 26.38
P/B ratio 1.63
Past 5Y EPS Growth 21.83%
This Y EPS Growth 57.42%
Next Y EPS Growth 8.12%
Next 5Y EPS Growth 30.71%
in millions of $

Dividends

Payout Ratio 0.00
Annual Dividend Rate —
Annual Dividend Yield —
total individual payouts
2023 Powerpack
2022 Powerpack
2021 Powerpack
2020 Powerpack
2019 Powerpack
predictions in italic, special payouts not included in total or ratios

Assets vs Liabilities

2023 2024 2025 Q'26
Cash 166 126 75 115
Receivables — 2 1 —
Inventory — — — —
Other 4 — — —
173 132 82 121
2023 2024 2025 Q'26
Payables 7 4 2 4
ST’ Debt — — — —
Other — — — —
19 15 12 13
in millions of $

Compound Annual Growth

10y 5y 3y
Sales — — (44.30%)
Cash Flow — 0.00% 0.00%
Earnings — 0.00% 0.00%
Book Value — (23.20%) (7.42%)

Revenue

Mar Jun Sep Dec Year
’26 — — — — —
’25 3 1 1 1 6
’24 — — — — 2
’21 5 9 — — 14
’20 7 9 11 10 37
in millions of $ · fiscal quarters ending in the months shown

Operating Cash Flow

Mar Jun Sep Dec Year
’26 (16) (17) — — —
’25 (24) (19) (17) (18) (79)
’24 (22) (15) (16) (7) (60)
’23 (20) (15) (12) (21) (67)
’22 (17) (13) (12) (11) (54)
’21 (25) (18) (15) (18) (76)
’20 (9) (10) (11) (15) (45)
in millions of $ · fiscal quarters ending in the months shown

Free Cash Flow

Mar Jun Sep Dec Year
’26 (16) (17) — — —
’25 (25) (19) (17) (18) (79)
’24 (28) (21) (21) (9) (78)
’23 (21) (19) (12) (23) (75)
’22 (17) (13) (12) (16) (59)
’21 (26) (20) (15) (18) (79)
’20 (10) (11) (12) (19) (52)
in millions of $ · fiscal quarters ending in the months shown

EPS

Mar Jun Sep Dec Year
’26 (1.69) (1.07) — — —
’25 (2.49) (2.74) (1.92) (5.32) (12.48)
’24 (2.44) (2.43) (2.26) (2.26) (9.37)
’23 (72.08) (63.95) (65.11) 148.05 (53.08)
’22 (33.50) (30.50) (27.50) (24.50) (227.58)
’21 (30.00) (26.00) (36.50) (31.00) (123.50)
’20 (8.00) (9.50) (8.00) (15.00) (41.00)
fiscal quarters ending in the months shown

Target Price Range

Analyst price targets

Recommendation Rating

1.3
1Buy 2 3Hold 4 5Sell
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028
— — — 558.50 725.00 234.00 50.00 9.15 30.01 5.20

Analyst estimates 2026–2028

Powerpack
Low Price
— — — 1,024.50 2,144.55 2,918.50 289.50 279.50 98.00 55.89
High Price
— — 39 47 87 74 48 101 104 58
Employees
— — 0 1 0 0 0 0 0 0
Revenue/Emp
— — — 29 37 14 — — 2 6
Revenue
— 0.00% 0.00% 100.00% 100.00% 100.00% 0.00% — 100.00% 100.00%
Gross Margin
— (20) (19) (19) (26) (85) (58) (81) (83) (117)
EBT
— 0.00% 0.00% (64.76%) (71.59%) (601.87%) 0.00% 0.00% (3,674.15%) (1,824.52%)
EBT Margin
— (20) (19) (19) (27) (85) (58) (81) (84) (117)
Net Income
— 1 1 1 1 3 2 4 2 4
Depreciation
— 0.00 0.00 167.32 57.33 20.48 0.00 0.00 0.25 0.68
Revenue/Sh
— (1,439.33) (626.41) (114.50) (41.00) (123.50) (227.58) (53.08) (9.37) (12.48)
Earnings/Sh
— (1,036.45) (556.34) 197.78 (70.05) (110.71) (210.37) (44.00) (6.73) (8.36)
Cash Flow/Sh
— (132.13) (14.25) (6.15) (10.34) (4.24) (20.14) (5.12) (2.01) (0.06)
Capex/Sh
— (1,168.58) (570.59) 191.63 (80.39) (114.95) (230.51) (49.13) (8.74) (8.42)
Free CF/Sh
— 0.00 1,321.11 967.39 298.39 190.43 254.24 111.13 17.98 5.48
Book Value/Sh
— 0 0 0 1 1 0 2 9 9
Shares
— — — 0.00 0.00 0.00 — — 0.00 0.00
PE Ratio
— — — 0.00 30.75 5.00 — — 9.63 11.77
PS Ratio
— — — 0.91 5.91 1.35 — — 2.12 1.46
PB Ratio
— — — 0.00 25.21 1.72 — — 6.84 4.37
EV/Sales
— — — (1.98) (17.98) (0.77) — — (3.09) (0.35)
EV/FCF
— (15) (17) 34 (45) (76) (54) (67) (60) (79)
Op' Cash Flow
— (2) 0 (1) (7) (3) (5) (8) (18) (1)
Capex
— (16) (17) 33 (52) (79) (59) (75) (78) (79)
FCF
— 16 39 169 198 123 48 153 117 70
Working Cap'
— 47 85 — 15 15 14 — — —
Total Debt
— 29 43 (217) (205) (116) (41) (166) (126) (75)
Net Debt
— 0 40 167 192 131 65 170 160 51
Sh' Equity
— (90.85%) (86.06%) (14.79%) (10.87%) (37.63%) (44.80%) (54.96%) (37.32%) (69.03%)
ROA
— (35.44%) (14.24%) 0.00% 0.00% (347.42%) (155.25%) (1,404.78%) (167.38%) 0.00%
ROIC
— 54.58% 51.70% (32.23%) (14.73%) (52.39%) (365.06%) (229.04%) (50.61%) (110.70%)
ROE
predictions in italic, sparklines do not include predictions

All 10 years →

Fiscal years to Dec 2025 · latest quarter Dec 2025

Korro Bio, Inc. (KRRO) key facts

  • Korro Bio, Inc. (KRRO) is a Biotechnology company in the Healthcare sector, listed on Nasdaq.
  • Korro Bio, Inc.’s revenue for fiscal 2025 (year ended December 2025) was $6.4 million, up 181.5% from fiscal 2024.
  • As of September 25, 2026, KRRO traded at $9.57, a market capitalization of $140.9 million.
  • Return on equity was −110.7% and debt-to-equity 0.00.

Source: company filings (standardised) and stockrow calculations.

Korro Bio, Inc. (KRRO) Latest News

News by impact score

Fine-tune

10 Aug

3

Korro Bio, Inc. (KRRO) received a rating upgrade to Buy. Buy rating upgrade can lift near-term investor sentiment and share price.

6 Aug

3

Korro Bio reported second quarter 2026 financial results and issued a corporate update. Quarterly results and updates can move stock price and investor views.

19 May

4

Korro Bio selects KRRO-111 as development candidate for potential Alpha-1 Antitrypsin Deficiency treatment. KRRO-111 advancement to development candidate marks major pipeline milestone that can significantly shift Korro Bio's trajectory and investor sentiment.

7 May

4

Korro Bio, Inc. (KRRO) reported first quarter 2026 financial results and provided a corporate update. Quarterly financial results combined with corporate updates in biotech typically signal pipeline progress or strategic shifts that significantly affect stock performance and investor sentiment.

4

Korro Bio, Inc. reported its first quarter 2025 financial results, highlighting an interim readout from the Phase 1/2a REWRITE clinical trial of KRRO-110 for Alpha-1 Antitrypsin Deficiency expected in the second half of 2025. The company is streamlining operations with a 20% workforce reduction to extend its cash runway into 2027, ending the quarter with $139 million in cash. Korro plans to announce a second development candidate in 2025 and continues to advance its collaboration with Novo Nordisk. R&D expenses increased to $19.7 million, while net loss rose to $23.4 million compared to the previous year. The workforce reduction and strategic focus on key programs are significant moves that could enhance Korro's long-term viability and market position.

28 Apr

3

Korro Bio, Inc. (KRRO) stands out as a new buy stock due to its strong fundamentals and growth potential. Buy recommendation moderately boosts investor sentiment without altering core operations.

16 Apr

3

Korro Bio, Inc. (KRRO) announces oral and poster presentations at upcoming scientific conferences. Conference presentations increase visibility of Korro's RNA editing pipeline and may moderately boost investor sentiment and competitive positioning.

12 Mar

4

Korro Bio, Inc. (KRRO) reported fourth quarter and full-year 2025 financial results alongside a corporate update. Financial results and corporate updates drive significant shifts in investor sentiment and stock performance for biotech companies.

9 Mar

4

Korro Bio, Inc. (KRRO) announced an oversubscribed $85 million private placement, led by RA Capital Management and other healthcare-focused investors, to fund advancement of its RNA editing programs through key clinical milestones. Oversubscribed $85 million private placement delivers substantial non-dilutive capital to accelerate clinical development and extend runway, significantly boosting KRRO's growth trajectory.

13 Feb

3

Korro Bio, Inc. (NASDAQ:KRRO) is urged to approach its business growth with caution. The company faces challenges in scaling its operations and maintaining financial stability while pursuing innovation in RNA-targeted therapies. Analysts emphasize the importance of strategic planning to navigate market dynamics and investor expectations effectively. Korro Bio's growth strategy and operational challenges are expected to moderately influence its financial performance and market positioning.

2 Feb

4

H.C. Wainwright has identified KRRO-121 as an independent value driver for Korro Bio, Inc. (KRRO), highlighting its potential to significantly impact the company's future prospects and market performance. The designation suggests that KRRO-121 could play a crucial role in enhancing the company's competitive positioning and financial outlook. The identification of KRRO-121 as a key value driver indicates a significant potential impact on the company's future and market performance.

30 Jan

4

Korro Bio, Inc. presented its KRRO-121 RNA-editing candidate during an Analyst Day, highlighting its potential to target ammonia control in urea cycle disorders (UCD) and hepatic encephalopathy (HE). The company aims to address significant unmet medical needs in these conditions, showcasing the therapeutic promise of KRRO-121 in managing ammonia levels effectively. The introduction of KRRO-121 could significantly impact treatment options for UCD and HE, potentially altering the company's market position and investor sentiment.

3

Korro Bio, Inc. (KRRO) experienced a notable 13.9% increase in its stock price, raising questions about the potential for continued strength. Analysts are evaluating the factors contributing to this surge and whether it can lead to sustained growth. Market sentiment appears optimistic, with investors closely monitoring developments that could influence the company's future performance. The stock price increase indicates moderate investor interest, but further developments are needed to assess long-term impact.

20 Jan

3

Korro Bio, Inc. will host a virtual Analyst Day on January 27, 2026, to provide updates on its strategic initiatives and future plans. The event aims to engage with investors and analysts, offering insights into the company's direction and potential developments in its pipeline. The Analyst Day may influence investor sentiment and provide insights into future strategies, but its overall impact is expected to be limited.

14 Nov

4

Korro Bio, Inc. (KRRO) is facing significant challenges following clinical setbacks and layoffs, prompting a strategic pivot. The company is reassessing its valuation amidst these difficulties, which have raised concerns about its future prospects and market performance. Investors are closely monitoring the implications of these developments on Korro's operational strategy and overall viability. The combination of clinical setbacks, layoffs, and a strategic pivot indicates a significant impact on the company's future and market performance.

13 Nov

4

Korro Bio, Inc. (KRRO) experienced a significant decline in stock price, reaching a record low following a major setback in its RNA-editing technology. The company faced challenges that have raised concerns among investors about its future prospects and ability to compete in the biotechnology sector. This development has led to increased scrutiny of Korro Bio's strategic direction and financial health. The setback in RNA-editing technology is likely to significantly impact Korro Bio's future performance and investor sentiment.

4

Korro Bio, Inc. is reducing its workforce and altering its strategic direction after its RNA editing drug failed to meet expectations in early testing. The company aims to refocus its efforts following the disappointing results, which have raised concerns about its future product development and market position. The staff cuts and strategic shift indicate significant challenges that could alter the company's trajectory and investor sentiment.

3

Korro Bio, Inc. (KRRO) is experiencing a significant decline in its stock price, contributing to its position among the top midday decliners. The company's recent performance has raised concerns among investors, leading to a notable drop in market confidence. Analysts are closely monitoring the situation as KRRO navigates challenges that may impact its future operations and market standing. The decline in stock price indicates a moderately noticeable influence on investor sentiment and market performance.

12 Nov

4

Korro Bio, Inc. reported its third quarter financial results, highlighting progress in its KRRO-110 program targeting Alpha-1 Antitrypsin Deficiency. The company provided updates on its pipeline programs, indicating advancements in research and development efforts. Financial metrics showed a focus on maintaining operational efficiency while pursuing innovative therapies. Significant advancements in pipeline programs and financial results indicate a strong potential for future growth and market performance.

3

Korro Bio, Inc. (KRRO) reported a loss for Q3 that exceeded analysts' expectations, with revenues falling short of estimates. The company's financial performance has raised concerns among investors, as it continues to navigate challenges in its operational strategy and market positioning. Despite the disappointing results, Korro Bio remains focused on its long-term goals and product development initiatives. The financial results indicate challenges that may affect the company's performance and investor sentiment, but they are not expected to fundamentally alter its trajectory.

2 Sep

3

Korro Bio, Inc. will participate in several upcoming investor and scientific conferences, including the 2023 Jefferies Healthcare Conference and the 2023 Bio International Convention. These events will provide opportunities for the company to showcase its advancements in RNA-targeted therapies and engage with investors and industry experts. Participation in these conferences may enhance visibility and investor sentiment but is not expected to fundamentally alter the company's trajectory.

26 Aug

4

Korro Bio, Inc. is focusing on advancing its RNA-targeted therapies and has outlined growth plans that include expanding its pipeline and enhancing its technology platform. The company aims to leverage its proprietary technology to address unmet medical needs in various diseases. Investors are keenly observing Korro's strategic initiatives and partnerships that could bolster its market position and drive future growth. Korro Bio's strategic initiatives and potential partnerships could significantly alter its market trajectory and investor sentiment.

12 Aug

4

Korro Bio, Inc. reported its financial results for the second quarter of 2025, highlighting key metrics and business updates. The company continues to advance its pipeline of RNA-targeted therapies, with ongoing clinical trials and collaborations aimed at enhancing its market position. Financial performance showed growth in revenue, driven by increased demand for its innovative solutions. Management provided insights into future strategies and anticipated milestones, reinforcing confidence in the company's trajectory. Significant advancements in clinical trials and strategic collaborations are likely to impact Korro Bio's market position and investor sentiment.

21 Jul

4

Korro Bio, Inc. has received orphan drug designation from the European Medicines Agency for KRRO-110, an investigational treatment for Alpha-1 Antitrypsin Deficiency (AATD). This designation follows a similar approval from the U.S. FDA in March 2025. KRRO-110 is currently undergoing evaluation in the Phase 1/2a REWRITE clinical study, with interim results expected in late 2025. The orphan designation provides various development incentives, including market exclusivity upon approval. AATD is a genetic disorder that can lead to serious lung and liver issues, and KRRO-110 aims to repair the underlying genetic defect using RNA editing technology. The orphan drug designation and ongoing clinical trials for KRRO-110 represent significant advancements that could greatly influence Korro's market position and investor sentiment.

14 May

3

Korro Bio, Inc. (Nasdaq: KRRO) announced its participation in several upcoming investor conferences. CEO Ram Aiyar will engage in a fireside chat at the RBC Capital Markets Global Healthcare Conference on May 21, 2025, followed by presentations at the Jefferies Global Healthcare Conference on June 4, 2025, and the Goldman Sachs 46th Annual Global Healthcare Conference on June 9, 2025, alongside Chief Medical Officer Kemi Olugemo. A live webcast of the RBC event will be available on Korro's website, with a replay accessible for 30 days. Korro is focused on developing genetic medicines through RNA editing for various diseases. Participation in investor conferences can enhance visibility and investor sentiment, potentially impacting market performance.

9 May

4

H.C. Wainwright has lowered its price target for Korro Bio (KRRO) from $130 to $53 while maintaining a Buy rating. The company reported Q1 results and announced a 20% workforce reduction to extend its cash runway into 2027. The analyst believes Korro's catalysts are on track but adjusted the model due to increased competition in the alpha-1 antitrypsin deficiency market. The workforce reduction and adjusted price target indicate significant strategic shifts that could impact the company's future performance.

1 Apr

4

Korro Bio, Inc. has appointed Loïc Vincent, Ph.D., a seasoned veteran in the biotech industry, as its new Chief Scientific Officer. Vincent brings extensive experience in drug development and leadership roles, having previously worked at notable companies such as Novartis and Amgen. His appointment is expected to enhance Korro's strategic direction and innovation in RNA-targeted therapies, aligning with the company's mission to advance its pipeline and strengthen its position in the biotech sector. The appointment of a highly experienced CSO is likely to significantly impact Korro's strategic direction and innovation capabilities.

19 Mar

4

Korro Bio, Inc. is exploring growth opportunities in the biotech sector, focusing on its innovative RNA-targeted therapies. The company aims to leverage its proprietary technology to advance its pipeline and enhance its market position. Recent developments indicate a commitment to expanding its research capabilities and potential collaborations, which could drive future growth. Investors are keenly observing these strategic moves as they may influence Korro's trajectory in a competitive landscape. Strategic moves and potential collaborations could significantly alter the company's trajectory and investor sentiment.

18 Mar

4

Korro Bio, Inc. reported its full-year 2024 financial results, highlighting the completion of dosing for the first two cohorts in the Phase 1/2a REWRITE clinical study of KRRO-110 for Alpha-1 Antitrypsin Deficiency (AATD), with an interim readout expected in late 2025. The FDA granted Orphan Drug Designation to KRRO-110, providing development incentives. Korro aims to execute a 3-2-1 strategy by 2027, establishing three clinical-stage programs targeting two tissue types. The company ended 2024 with $163.1 million in cash, expected to fund operations into the second half of 2026. R&D expenses increased to $63.6 million, while net loss was $83.6 million. Upcoming milestones include the interim readout of KRRO-110 and the nomination of a second development candidate by the end of 2025. The FDA's Orphan Drug Designation and the advancement of KRRO-110 are significant strategic moves that could enhance Korro's market position and investor sentiment.

14 Mar

4

Korro Bio, Inc. announced that the U.S. FDA has granted orphan drug designation to KRRO-110 for treating Alpha-1 Antitrypsin Deficiency (AATD). This designation highlights the need for new treatments for AATD, which affects fewer than 200,000 people in the U.S. KRRO-110, the first candidate from Korro's RNA editing platform, is currently in a Phase 1/2a clinical study. The study aims to evaluate the safety and tolerability of KRRO-110, with interim results expected in late 2025. Orphan drug designation provides development incentives, including tax credits and potential market exclusivity. The orphan drug designation and ongoing clinical study for KRRO-110 could significantly impact Korro's future performance and market position in treating AATD.

stockrow.com/KRRO · Data as of Dec 31, 2025 · For information only; not investment advice. · © 2026 stockrow.com