KRRO Korro Bio, Inc.
company
SEC Filings & Insider Trading Activity 2026

CIK: 1703647
Health Care
Pharmaceutical Preparations 52 filings
Russell 2000

Latest Korro Bio, Inc. (KRRO) SEC EDGAR filings in 2026 — including the most recent 10-K annual report filed on March 12, 2026, a 10-Q quarterly report filed on November 12, 2025, an 8-K current report filed on June 11, 2026. SignalX aggregates every new 10-K annual report, 10-Q quarterly report, 8-K current report, and Form 4 insider transaction for Korro Bio, Inc. (KRRO) (SEC CIK 1703647), with AI-powered section-by-section summaries updated daily.

10-Q: 19
SC 13G: 16
8-K: 8
10-K: 7
SC 13D: 2

Latest 2026 SEC Filing Dates

10-K Annual Report
Mar 12, 2026
10-Q Quarterly Report
Nov 12, 2025
8-K Current Report
Jun 11, 2026

Recent 8-K Filings
Current Reports

AI-powered analysis of Korro Bio, Inc. (KRRO) 8-K current reports disclosing material events.

Latest 2026 SEC Filings — 10-K, 10-Q, 8-K & Form 4

FormFiling DatePeriodAnalysisSEC
8-K
Jun 11, 2026
8-K
May 19, 2026
8-K
May 7, 2026
8-K
Mar 12, 2026Analysis
10-K
Mar 12, 2026Dec 31, 2025
8-K
Mar 9, 2026Analysis
8-K
Jan 27, 2026
8-K
Jan 15, 2026
8-K
Dec 18, 2025
10-Q
Nov 12, 2025Sep 30, 2025
10-Q
Aug 12, 2025Jun 30, 2025
10-Q
May 7, 2025Mar 31, 2025
10-K
Mar 18, 2025Dec 31, 2024
10-Q
Nov 12, 2024Sep 30, 2024
10-Q
Aug 13, 2024Jun 30, 2024
10-Q
May 14, 2024Mar 31, 2024
SC 13G
Apr 26, 2024
10-K
Mar 26, 2024Dec 31, 2023
SC 13G
Feb 14, 2024
SC 13G
Feb 9, 2024
SC 13G
Nov 17, 2023
SC 13D
Nov 17, 2023
SC 13G
Nov 16, 2023
SC 13G
Nov 13, 2023
SC 13G
Nov 13, 2023

Frequently Asked Questions

What are the latest KRRO SEC filings in 2026?

Korro Bio, Inc. (KRRO) has filed a 10-K annual report on March 12, 2026, a 10-Q quarterly report on November 12, 2025, an 8-K current report on June 11, 2026 with the SEC. SignalX tracks every new SEC EDGAR filing daily, including 10-K, 10-Q, 8-K, and Form 4 insider transactions, with AI-powered summaries of key sections.

When did KRRO file its most recent 10-K annual report?

Korro Bio, Inc. (KRRO) filed its most recent 10-K annual report on March 12, 2026. The 10-K includes audited financial statements, business overview, risk factors, and management discussion, all available on SignalX with AI-generated summaries and XBRL financial data.

How do I view KRRO 10-Q quarterly reports?

Korro Bio, Inc. (KRRO)'s most recent 10-Q quarterly report was filed on November 12, 2025. SignalX displays every KRRO 10-Q with AI-generated summaries of the MD&A (Management Discussion & Analysis) and Risk Factors sections, plus links to the original SEC EDGAR document.

What 8-K current reports has KRRO filed recently?

Korro Bio, Inc. (KRRO)'s most recent 8-K was filed on June 11, 2026. 8-K filings disclose material corporate events such as earnings releases, executive changes, mergers, and other significant developments. SignalX surfaces each 8-K with item-level summaries so you can quickly see what happened.

Where can I find KRRO insider trading activity (Form 4)?

SignalX aggregates every KRRO Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.

How often does KRRO file with the SEC?

Korro Bio, Inc. (KRRO) files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new KRRO filing with AI-powered analysis.

What is the difference between 10-K, 10-Q, and 8-K SEC filings?

A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs — such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for Korro Bio, Inc. (KRRO).

What is KRRO's SEC CIK number?

Korro Bio, Inc. (KRRO)'s SEC CIK (Central Index Key) number is 1703647. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1703647 to look up all KRRO filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.

Where can I find KRRO return on equity (ROE) and financial data?

SignalX extracts XBRL financial data from Korro Bio, Inc. (KRRO) 10-K annual filings, including revenue, net income, gross profit, operating income, EPS, total assets, stockholders' equity, and operating cash flow. Return on equity (ROE) can be derived from net income divided by stockholders' equity. Multi-year financial trends are displayed in the Financial Summary table above.

Stay on top of Korro Bio, Inc. SEC filings

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