That's a good put here. Didn't find that NASDAQ delisting article dated in April 2011 during the historical check. A successful transfer back to the NAS List would be significant news. Cheers,
ATRN Meets NASDAQ Global Market Listing Requirements for
minimum requirement of stockholders' equity of $10,000,000 for continued listing on the Nasdaq Global Market, as required by Listing Rule 5450(b)(1)(a).
AND as set forth in Listing Rule 5605(c)(2)(A), which requires that the Company's Audit Committee consist of three directors meeting the independence criteria and having the qualifications set forth in the Listing Rules.
Now get the share price over a dollar and get going.