United States (IBwire.com - June 01, 2011) The Law Offices of Marc S. Henzel (www.henzellaw.com) a firm focusing on shareholder litigation, gives notice to purchasers of the following securities for the following class periods:

COMPANY                                 CLASS PERIOD

Advanced Battery Technologies Inc.(NASDAQ:ABAT) 3/16/09 thru 3/29/11

American Superconductor Corp. (Nasdaq: AMSC)    11/22/10 thru 4/5/11

Gerova Financial Group Ltd. (Nasdaq: GVFG)      1/8/10 thru 2/23/11

Logitech International SA (Nasdaq: LOGI)        10/28/10 thru 4/1/11

Longtop Financial, Inc. (NYSE: LFT)             6/29/09 thru 4/25/11

Office Depot (NYSE: ODP)                        7/27/10 thru 3/21/11

Research in Motion Limited (Nasdaq: RIMM)       12/16/10 thru 4/28/11

Urban Outfitters, Inc. (Nasdaq: URBN)           11/15/10 thru 3/7/11

Yongye International, Inc. (Nasdaq: YONG)       8/11/10 thru 5/11/11

WMS Industries, Inc. (NYSE: WMS)                11/1/10 thru 4/11/11

If you purchased securities in any of the companies during the class periods described above and/or own shares in any of the companies and would like to learn more about any potential claims or you wish to discuss these matters and have any questions concerning this announcement or your rights, please contact Marc S. Henzel (610) 660-8000, email at Mhenzel@Henzellaw.com, or to sign up online, visit the firms website at www.henzellaw.com. 

The Law Offices of Marc S. Henzel is a national shareholder litigation firm representing shareholders & investors in various areas of securities laws including but not limited to; class actions, derivatives, transactional (buyouts/takeovers/mergers) and FINRA & NYSE Arbitrations.

Attorney advertising. © 2011 Law Offices of Marc S. Henzel.  The law firm responsible for this advertisement is the Law Offices of  Marc S. Henzel.  Prior results do not guarantee or predict a similar outcome with respect to any future matter.

Contact:

Law Offices of Marc S. Henzel

Marc S. Henzel

Email: Mhenzel@Henzellaw.com

Phone 610-660-8000

Website: www.henzellaw.com.