In 1994, SERGEI NEIKSHIN graduated from the Novosibirsk State Choreography School, class of Vladimir Vladimirov. He was engaged at the Yekaterinburg Opera and Ballet Theatre (1994-1999) and Yuri Grigorovich Ballet (1999-2000).
Sergei Neikshin is a member of the LNO Ballet Company from 2000. He has participated in All-Russian Ballet Competition (1994, 2nd place). He was Participant of the European New Ballet (1996, 1998). and held the title of the Young Dancer (Russia, Yekaterinburg, 1997, 1999). He is a laureate of Latvijas Gāze Annual Award as the Best Dancer of the Year (2006).
Sergei Neikshin graduated from the class of Prof.Gabriel Komleva at the Saint Petersburg State Conservatory in 2009.
Margarita Demjanoka and Sergei Neikshin have danced in Swan Lake in the Sobin's Ballet Festival (Saratov) in 2011.
In 2013, Sergei Neikshin recieved Latvian Theatre Award as a Best Ballet Dancer of Season 2013/2014.