Tonix Pharmaceuticals CMO Gregory Sullivan to retire in August 2026
The company disclosed the retirement in an 8-K filing dated July 21, 2026, with an effective date the following month.
Tonix Pharmaceuticals Holding Corp. disclosed in a Form 8-K that on July 20, 2026, Dr. Gregory M. Sullivan informed the company that he will retire from his role as Chief Medical Officer, effective August 20, 2026.1
The filing was made under Item 5.02, which covers departures of directors or officers and related compensatory arrangements. The report was filed with the Securities and Exchange Commission by Tonix Pharmaceuticals Holding Corp., a Nevada-incorporated company headquartered at 200 Connell Drive, Suite 3100, Berkeley Heights, New Jersey.1
The company's common stock trades under the symbol TNXP on The NASDAQ Global Select Market.1
The 8-K was signed on behalf of the company by Bradley Saenger, Chief Financial Officer, on July 21, 2026.1
The filing does not name a successor Chief Medical Officer or provide additional detail on transition plans beyond the retirement date disclosed.
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