| (a) | Amount beneficially owned:
D. E. Shaw & Co., L.P.: 1,690,546 shares
This is composed of (i) 923,904 shares in the name of D. E. Shaw Valence Portfolios, L.L.C., (ii) 400,000 shares in the name of D. E. Shaw Cogence Portfolios, L.L.C., (iii) 307,800 shares in the name of D. E. Shaw Oculus Portfolios, L.L.C., and (iv) 58,842 shares beneficially owned by a member of the Executive Committee of D. E. Shaw & Co., L.P. and D. E. Shaw & Co., L.L.C.
D. E. Shaw & Co., L.L.C.: 1,690,546 shares
This is composed of (i) 923,904 shares in the name of D. E. Shaw Valence Portfolios, L.L.C., (ii) 400,000 shares in the name of D. E. Shaw Cogence Portfolios, L.L.C., (iii) 307,800 shares in the name of D. E. Shaw Oculus Portfolios, L.L.C., and (iv) 58,842 shares beneficially owned by a member of the Executive Committee of D. E. Shaw & Co., L.P. and D. E. Shaw & Co., L.L.C.
David E. Shaw: 1,690,546 shares
This is composed of (i) 923,904 shares in the name of D. E. Shaw Valence Portfolios, L.L.C., (ii) 400,000 shares in the name of D. E. Shaw Cogence Portfolios, L.L.C., (iii) 307,800 shares in the name of D. E. Shaw Oculus Portfolios, L.L.C., and (iv) 58,842 shares beneficially owned by a member of the Executive Committee of D. E. Shaw & Co., L.P. and D. E. Shaw & Co., L.L.C.
David E. Shaw does not own any shares directly. A member of the Executive Committee of D. E. Shaw & Co., L.P. and D. E. Shaw & Co., L.L.C. beneficially owns 58,842 shares ("EC Member Shares"). By virtue of David E. Shaw's position as President and sole shareholder of D. E. Shaw & Co., Inc., which is the general partner of D. E. Shaw & Co., L.P., which in turn is the investment adviser of D. E. Shaw Valence Portfolios, L.L.C., D. E. Shaw Cogence Portfolios, L.L.C., and D. E. Shaw Oculus Portfolios, L.L.C., and by virtue of David E. Shaw's position as President and sole shareholder of D. E. Shaw & Co. II, Inc., which is the managing member of D. E. Shaw & Co., L.L.C., which in turn is the manager of D. E. Shaw Valence Portfolios, L.L.C., D. E. Shaw Cogence Portfolios, L.L.C., and D. E. Shaw Oculus Portfolios, L.L.C., David E. Shaw may be deemed to have the shared power to vote or direct the vote of 1,631,704 shares ("Voting Shares"), and the shared power to dispose or direct the disposition of 1,690,546 shares (consisting of Voting Shares and EC Member Shares), constituting 7.2% of the outstanding shares and, therefore, David E. Shaw may be deemed to be the beneficial owner of such shares. David E. Shaw disclaims beneficial ownership of such 1,690,546 shares. |