Form 4 Filing by Bank of Nova Scotia

This filing details a disposition of 205,976 common shares of KEYCORP by BANK OF NOVA SCOTIA on June 23, 2026, at a price of $22.71 per share. This transaction was made pursuant to an Investment Agreement and related arrangements, allowing the Reporting Person to participate in the Issuer's share repurchases. Following this transaction, BANK OF NOVA SCOTIA holds 157,885,378 shares. The Reporting Person is considered a director-by-deputization due to their contractual right to nominate directors to the Issuer's board. This filing is significant due to the substantial number of shares disposed of and the Reporting Person's status as a ten percent owner and deemed director.