Centennial Energy Partners sent a letter to GMX suggesting a sale of the company. Centennial expressed doubt that GMX will be able to realize the value of its assets without immediate actions by its board. Centennial also requested that the GMX board begin a formal process to review strategic options, including the potential sale of the company. Centennial holds 2,848,571 shares (15.16% of the total outstanding).

Springbok Capital Management filed a lawsuit against MCG Capital and its board in the Delaware Court of Chancery, alleging that the board tried to prevent or deter the shareholder from nominating directors. MCG has filed a lawsuit in federal court in Manhattan against Springbok Capital alleging that it filed an erroneous and incomplete Schedule 13D in November, and that Springbok failed to disclose certain "control plans" for the company that ought to have been disclosed in the filing. Springbok Capital Management holds 7,554,600 shares (9.9%).

Knowledge Learning has made an offer to acquire all of Nobel Learning Communities' outstanding shares for $13.50 per share in cash. Knowledge said the new proposal supersedes one it made to Nobel Learning in September 2008, and the proposed transaction isn't subject to a financing condition. Knowledge said it is prepared to "quickly move forward" to effect a definitive merger agreement. The Knowledge Learning group holds 3,857,171 shares (37.1%).

Shareholder Allan W. Karp disclosed that he has nominated three candidates for the company's board -- himself, Gabriel Bitton, and Hezy Shaked -- for election at Charlotte Russe's 2009 annual meeting. Karp holds 1,804,394 shares, or 8.59%.

Warner Music Group Chairman and Chief Executive Edgar Bronfman Jr. reported ownership of 11,319,989 shares (7.3%). In his role as chief executive, Bronfman takes and will continue to take an active role in the company's management and strategic direction.

Belgrave Investment Holdings increased its holdings to 2,107,099 shares (22.8%) from 1,215,942 (13.1%) reported Feb. 13.

Harbinger Capital Partners increased its stake to 28,538,434 shares (19.94%) after purchasing 50,000 on Dec. 21, 2008 at $5.12 a share.

Private equity investor Warburg Pincus raised its stake to about 55.05 million shares (25%) after buying 1.9 million shares on March 5 and 6 at $2.38 a share.