 Shares of Cleveland BioLabs, Inc. NASDAQ:CBLI fell 9.8 during mid-day trading on Thursday . The company traded as low as 2.36 and last traded at 2.57, 9,782 shares changed hands during mid-day trading. A decline of 100 from the average session volume of 3,798,130 shares. The stock had previously closed at 2.85. Separately, ValuEngine downgraded ... 