EXHIBIT 1 

AGREEMENT

Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13D need be filed with respect to the ownership by each of the undersigned of shares of stock of Korro Bio, Inc.

EXECUTED this 12^th day of March, 2026.

NEW ENTERPRISE ASSOCIATES 17, L.P.

  By:                             *                                

 Anthony A. Florence, Jr.

 Managing Partner and Co-Chief Executive Officer 

  By:                             *                                

 Mohamad H. Makhzoumi

 Managing Partner and Co-Chief Executive Officer  

NEA PARTNERS 17, L.P.

  By:                             *                                

 Anthony A. Florence, Jr.

 Managing Partner and Co-Chief Executive Officer 

  By:                             *                                

 Mohamad H. Makhzoumi

 Managing Partner and Co-Chief Executive Officer

NEA 17 GP, LLC

  By:                             *                                

   Anthony A. Florence, Jr.

   Managing Partner and Co-Chief Executive Officer 

  By:                             *                                

   Mohamad H. Makhzoumi

   Managing Partner and Co-Chief Executive Officer

                 *                        

Forest Baskett

                 *                        

Ali Behbahani

                 *                        

Carmen Chang

                 *                        

Anthony A. Florence, Jr.

                 *                        

Mohamad H. Makhzoumi

                 *                        

Edward T. Mathers

                 *                        

Scott D. Sandell

                 *                        

Paul Walker

                 *                        

Rick Yang

 */s/ Zachary Bambach           

Zachary Bambach

As attorney-in-fact

This Agreement relating to Schedule 13D was executed by Zachary Bambach on behalf of the individuals listed above pursuant to a Power of Attorney, a copy of which is attached hereto as Exhibit 2.