Mateon Common Stock to Trade on OTCQX Beginning on December 8, 2016

SOUTH SAN FRANCISCO, Calif., Dec. 07, 2016 -- Mateon Therapeutics, Inc. (Nasdaq:MATN), a biopharmaceutical company developing vascular disrupting agents (VDAs) for the treatment of orphan oncology indications, today announced that shares of its common stock will be eligible for trading on the OTCQX Market, effective with the open of business on December 8, 2016. The Company expects that its shares will continue to trade under the current ticker symbol “MATN” when its shares trade on the OTCQX.

The OTCQX is the top tier of three markets organized by OTC Markets Group. As the premium market for U.S. over-the-counter securities, OTCQX offers transparent and efficient trading of established, investor-focused U.S. and global companies. To qualify for the OTCQX market, companies must meet specified financial standards, follow various corporate governance requirements, demonstrate compliance with U.S. securities laws and be current in their disclosures.

About Mateon
Mateon Therapeutics, Inc. is a biopharmaceutical company seeking to realize the full potential of vascular targeted therapy (VTT) in oncology. VTT includes vascular disrupting agents (VDAs) such as the investigational drugs that Mateon is developing, and anti-angiogenic agents (AAs), a number of which are FDA-approved and widely used in cancer treatment. These two approaches have distinct yet complementary mechanisms of action.

At Mateon, we believe that we can significantly improve cancer therapy by employing these two complementary approaches simultaneously. When utilized this way, VDAs obstruct existing blood vessels in the tumor leading to significant central tumor cell death while AAs prevent the formation of new tumor blood vessels.

Mateon is committed to leveraging our intellectual property and the product development expertise of our highly skilled management team to enable VTT to realize its true potential and to bring much-needed new therapies to cancer patients worldwide. 

Safe Harbor Statement
This news release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Any or all of the forward-looking statements in this press release, which include the timing of advancement, outcomes, data and regulatory guidance relative to our clinical programs and achievement of our business and financing objectives may turn out to be wrong. Forward-looking statements can be affected by inaccurate assumptions Mateon might make or by known or unknown risks and uncertainties, including, but not limited to, the inherent risks of drug development, manufacturing and regulatory review, and the availability of additional financing to pursue and continue development of our programs. Additional information concerning factors that could cause actual results to materially differ from those in the forward-looking statements is contained in Mateon’s reports to the Securities and Exchange Commission, including Mateon’s reports on Form 10-K, 10-Q and 8-K. However, Mateon undertakes no obligation to publicly update forward-looking statements, whether because of new information, future events or otherwise. Please refer to our Annual Report on Form 10-K for the fiscal year ended December 31, 2015.

CONTACTS  
Investors:
[email protected] 
650-635-7000

Media:
JPA Health Communications
Nic DiBella
[email protected]
617-945-5183