13G Filing: Billionaire David Shaw’s D. E. Shaw & Co. and AMAG Pharmaceuticals Inc. (AMAG)

D. E. Shaw & Co., L.P.:

1,735,509 shares

This is composed of (i) 1,051,098 shares in the name of D. E. Shaw
Valence Portfolios, L.L.C., (ii) 597,677 shares in the name of D. E. Shaw Oculus Portfolios, L.L.C., (iii) 1,500 shares in the
name of D. E. Shaw Heliant Capital, L.L.C., and (iv) 85,234 shares under the management of D. E. Shaw Investment Management,
L.L.C.

1,735,509 shares

This is composed of (i) 1,051,098 shares in the name of D. E. Shaw
Valence Portfolios, L.L.C., (ii) 597,677 shares in the name of D. E. Shaw Oculus Portfolios, L.L.C., (iii) 1,500 shares in the
name of D. E. Shaw Heliant Capital, L.L.C., and (iv) 85,234 shares under the management of D. E. Shaw Investment Management,
L.L.C.