Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
flotation [fləuˈteɪʃən] n (of shares) свобо́дная прода́жа; (of company) распрода́жа а́кций компа́нии
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.