X0306 4 2017-02-27 0 0001466538 COWEN GROUP, INC. COWN 0001275922 SOLOMON JEFFREY M COWEN GROUP, INC. 599 LEXINGTON AVENUE NEW YORK NY 10022 1 1 0 0 President Class A Common Stock 2017-02-27 4 A 0 35805 A 625984 D Class A Common Stock 2017-02-27 4 A 0 22083 A 648067 D Grant of restricted stock units for no monetary consideration. The restricted stock units will vest with respect to 15% on June 1, 2017, 10% on June 1, 2018, 25% on June 1, 2019, 25% on June 1, 2020 and 25% on June 1, 2021. The number of securities shown in this report reflects a one-for-four reverse split of the Issuer's Class A Common Stock that occurred on December 2, 2016, including the reporting person's receipt of any cash in lieu of fractional shares. Grant of restricted stock units for no monetary consideration. The restricted stock units will vest on March 10, 2021. /s/ Jeffrey M. Solomon 2017-03-01