Benzinga's Small Cap Movers for Tuesday February 5, 2013

Below are highlights from Benzinga's daily coverage of small cap securities making big moves:

Shares of Cache

, the New York City specialty chain of women's apparel stores, rose 16% Tuesday on 26 times average volume. Cache announced Tuesday that its Board of Directors appointed Jay Margolis as Chairman and Chief Executive Officer of Cache. Concurrent with this appointment, Thomas Reinckens will step down as Chairman of the Board and Chief Executive Officer of Cache. Cache closed at $3.34 on Tuesday.

Opexa Therapeutics

, the Woodlands, TX biopharmaceutical company, rose 160% Tuesday on 297 times average volume. Opexa Therapeutics announced Tuesday, the execution of an agreement with Merck Serono, a division of Merck, Darmstadt, Germany, for the development and commercialization of Tcelna (imilecleucel-T), a potential first-in-class personalized T-cell therapy for patients suffering from multiple sclerosis (MS). Tcelna (imilecleucel-T) is being developed by Opexa and currently is in a Phase IIb clinical trial in patients with Secondary Progressive MS. Potential payments to Opexa from the option and license agreement could total $225 million based upon the successful development and commercialization of Tcelna for MS. Opexa Therapeutics closed at $3.15 on Tuesday.

Shares of Constellation Energy Partners

, the Houston, TX company focused on the acquisition, development and production of oil and natural gas properties, rose 30% Tuesday on 13 times average volume. Constellation Energy Partners announced Monday that it has executed a definitive agreement to sell its Robinson's Bend Field assets and operations, which are located in the Black Warrior Basin in Tuscaloosa County, Alabama, to a subsidiary of Castleton Commodities International LLC. The sale encompasses over 500 operating natural gas wells in the Robinson's Bend Field together with related leasehold interests and infrastructure. The transaction is expected to close in the first quarter 2013. Constellation Energy Partners closed at $1.70 on Tuesday.