# EDGAR Filing Document

**Accession Number:** 0001703647
**File Stem:** 0001193125-26-157913
**Filing Date:** 2026-4
**Character Count:** 1299
**Document Hash:** a2a397ed18a027b6666b63733c36ecb5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-157913.hdr.sgml**: 20260416

**ACCESSION NUMBER**: 0001193125-26-157913

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260416

**DATE AS OF CHANGE**: 20260416

**EFFECTIVENESS DATE**: 20260416

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Korro Bio, Inc.
- **CENTRAL INDEX KEY:** 0001703647
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 472324450
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39062
- **FILM NUMBER:** 26865656

**BUSINESS ADDRESS:**
- **STREET 1:** 60 FIRST STREET
- **STREET 2:** 2ND FLOOR, SUITE 250
- **CITY:** CAMBRIDGE
- **STATE:** MA
- **ZIP:** 02141
- **BUSINESS PHONE:** 617-468-1999

**MAIL ADDRESS:**
- **STREET 1:** 60 FIRST STREET
- **STREET 2:** 2ND FLOOR, SUITE 250
- **CITY:** CAMBRIDGE
- **STATE:** MA
- **ZIP:** 02141

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Frequency Therapeutics, Inc.
- **DATE OF NAME CHANGE:** 20170412

### Attached PDF Documents

**Attachment 1:** `korro_ars_2026.pdf`

_No text found in this document._