Initial Beneficial Ownership Filing for Korro Bio, Inc.

This filing reports the initial beneficial ownership of Korro Bio, Inc. (KRRO) by Lynx1 Capital Management LP and Weston Nichols. As of March 31, 2026, Lynx1 Capital Management LP, through its investment manager Lynx1 Capital Management LP and its general partner Lynx1 Capital Management GP LLC, holds 1,537,776 shares of common stock. Weston Nichols, as the sole member of the general partner, also has a reporting relationship. Both entities and Mr. Nichols disclaim beneficial ownership except to the extent of their pecuniary interest. The filing is designated as a Form 3, indicating initial beneficial ownership.