Annual Report (Form 10-K) for fiscal year ended December 31, 2023 filed by Synthetic Fixed-Income Securities, Inc. as Depositor on behalf of STRATS Trust For Wal-Mart Stores, Inc. Securities, Series 2005-4. Item 1C (Cybersecurity) is marked 'Not Applicable' pursuant to staff administrative positions for asset-backed trusts. No cybersecurity incident is disclosed in this filing.