Alexei Osipovich Ratmansky is a Russian-American choreographer and former ballet dancer. As of April 2014 he is the artist in residence at the American Ballet Theatre. From 2004 to 2008 he was the director of the Bolshoi Ballet. (via Wikipedia) IMDB have two people - Aleksei Ratmansky nm3428296 and Alexei Ratmansky nm6224891. These are both the same person.
Don Quichot (Dutch National Ballet)
(Choreographer)
Bolshoi Ballet: Lost Illusions
(Choreographer)
The Bolshoi Ballet: A Contemporary Evening
(Choreographer)
The Flames of Paris
(Choreographer)
Anatomy of a Male Ballet Dancer
(Choreographer)
Romeo & Juliet
(Choreographer)
Shostakovich - Bolt
(Conductor)
The Little Humpbacked Horse
(Choreographer)
Bolshoi Ballet: Le Corsaire
(Choreographer)
Bolshoi Ballet: The Bright Stream
(Choreographer)
The Flames of Paris
(Story)
Prokofiev: Cinderella
(Choreographer)