JOINT FILING AGREEMENTJoint Filing Agreement • March 12th, 2010 • UniCredit S.p.A. • Security brokers, dealers & flotation companies
In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D filed on March 12, 2010 (including additional amendments thereto) with respect to the shares of Class A Common Stock, par value $0.01 per share, of Cowen Group, Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.
MODIFICATION AGREEMENTModification Agreement • May 14th, 2010 • UniCredit S.p.A. • Security brokers, dealers & flotation companies • New York
This Modification Agreement (this “Agreement”), dated as of May 11, 2010, is entered into by and among RCG Holdings LLC (solely for the purposes of Articles 3 through 9) (“RCG”), C4S & Co., L.L.C. (solely for the purposes of Articles 4 through 9), as managing member of RCG (“C4S”), Cowen Group, Inc. (solely for the purposes of Articles 3, 5, 6, 7, 8 and 9) (“Cowen”), Ramius LLC (solely for the purposes of Articles 1, 5, 6, 7, 8 and 9), a wholly owned subsidiary of Cowen (“Ramius”), Ramius Alternative Solutions LLC (formerly known as Ramius Fund of Funds Group LLC) (solely for the purposes of Articles 2, 5, 6, 7, 8 and 9), a wholly owned subsidiary of Cowen (“Ramius Alternative Solutions” and, together with RCG, C4S, Cowen and Ramius, the “Ramius Parties”), BA Alpine Holdings, Inc. (solely for the purposes of Articles 4 through 9) (“BA Alpine”), Alpine Cayman Islands Limited (solely for the purposes of Articles 1, 5, 6, 7, 8 and 9) (“Alpine Cayman”), UniCredit Bank AG (formerly known as
