Korro Bio, Inc.

From time to time, we may be involved in various other claims and legal proceedings relating to claims arising out of our operations. We are not currently a party to any material legal proceedings other than as disclosed below.

On June 3, 2021 and June 22, 2021, purported stockholders of Frequency filed putative class action lawsuits in the U.S. District Court for the District of Massachusetts against Frequency and Frequency’s Chief Executive Officer, President, and Director, David Lucchino. On March 21, 2022, the two lawsuits were consolidated into a single lawsuit, Quinones et al. v. Frequency Therapeutics, Inc. et al. and on May 16, 2022, Frequency’s Chief Development Officer, Dr. Carl Le Bel, was added as a defendant. The plaintiffs alleged violations of Sections 10(b), 20(a) and Rule 10b5 of the Exchange Act due to allegedly false and misleading statements and omissions about Frequency’s Phase 2a clinical trial (FX-322-202) for its product candidate FX-322 in Frequency’s public disclosures between October 29, 2020 and March 22, 2021. The lawsuit sought, among other things, damages in connection with Frequency’s allegedly artificially inflated stock price between October 29, 2020 and March 22, 2021 as a result of those allegedly false and misleading statements and omissions, as well as interest, attorneys’ fees and costs. On March 29, 2023, Frequency’s motion to dismiss was granted and the lawsuit was dismissed in its entirety. On April 27, 2023, plaintiff filed a notice of appeal to the United States Court of Appeals for the First Circuit from the order dismissing the lawsuit. On August 2, 2023, plaintiff-appellant submitted its opening brief to the First Circuit. Frequency filed its opposition brief on October 27, 2023, and plaintiff-appellant filed its reply brief on December 14, 2023. The First Circuit heard oral argument on January 8, 2024. On July 2, 2024, the First Circuit issued an opinion and judgment affirming dismissal of the lawsuit in its entirety. On July 18, 2024, plaintiff filed a motion in the U.S. District Court for the District of Massachusetts requesting that the court vacate its prior order and judgment dismissing the plaintiff’s lawsuit. We filed an opposition to that motion on August 8, 2024, and on November 1, 2024 the U.S. District Court for the District of Massachusetts denied the plaintiff's request that the court vacate its prior order and judgment dismissing the plaintiff’s lawsuit. The deadline for the plaintiff to appeal such decision has passed and the plaintiff did not file an appeal before such deadline.