• Viskase merged into a wholly owned Enzon subsidiary in an all-stock transaction, and the combined company will operate as Viskase Holdings.
• Following the closing, Enzon stockholders hold about 45% of the combined company and former Viskase stockholders hold about 55%.
• The common stock is expected to trade on OTCQB under the temporary ticker symbol ENZND for 20 trading days.
• The common stock is represented by CUSIP 293904 801.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Enzon Pharmaceuticals Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001104659-26-035301), on March 26, 2026, and is solely responsible for the information contained therein.