X0306 4 2019-04-22 0 0001284812 COHEN & STEERS INC CNS 0001296123 Simon Richard P 280 PARK AVE, 10TH FLOOR NEW YORK NY 10017 1 0 0 0 Common Stock 2019-04-22 4 S 0 5475 48.3208 D 34234 D Represents the weighted average price. These shares were sold in a series of transactions at prices ranging from $48.0000 to $48.5800. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information relating to the number of shares sold at each separate price within the ranges set forth in this footnote. /s/ Brian Heller, Attorney-in-Fact 2019-04-24