X0306 4 2015-01-30 false 0001284812 COHEN & STEERS INC CNS 0001181496 COHEN MARTIN 280 PARK AVENUE, 10TH FLOOR NEW YORK NY 10017 true true true false Executive Chairman Common Stock 1340701 I By the Martin Cohen 1998 Family Trust Common Stock 2015-01-30 4 A false 9880 0 A 11561070 D Common Stock 2015-01-30 4 D false 48141 42.91 D 11512929 D Shares held by the Martin Cohen 1998 Family Trust for the benefit of Mr. Cohens family. Mr. Cohens spouse is the trustee of the trust. Mr. Cohen disclaims beneficial ownership of these shares, and the filing of this report is not an admission that Mr. Cohen is the beneficial owner of these shares for the purposes of Section 16 and for any other purpose. Includes 9,880 restricted stock units (RSUs) mandatorily deferred by CNS from the reporting persons annual incentive performance bonus. Dividends paid on CNS common stock are reflected in additional RSUs on such deferred RSUs. The deferred RSUs vest ratably over four years, and the dividend RSUs vest on the fourth anniversary of the grant. Represents the withholding by Cohen & Steers of a sufficient number of shares of common stock to satisfy the reporting persons tax obligations upon the vesting and delivery of previously reported restricted stock units. /s/Francis C. Poli, Attorney-in-Fact 2015-02-03