Material Event Form 8 K

On September 6, 2024, KeyCorp initiated a strategic repositioning of its available-for-saleinvestment securities portfolio by selling approximately $7.0 billion of low-yielding investment securities, resulting in an expected after-taxloss of approximately $700 million in the third quarter of 2024. The investment securities that were sold had a weighted average book yield of approximately 2.3% and an average duration of approximately 6 years.