X0306
4
2021-03-10
0
0001057352
COSTAR GROUP, INC.
CSGP
0001066061
FLORANCE ANDREW C
C/O COSTAR GROUP, INC.
1331 L STREET, NW
WASHINGTON
DC
20005
1
1
0
0
President and CEO
Common Stock, par value $0.01 per share
2021-03-10
4
S
0
19570
818.37
D
76085
D
Average based on sales prices ranging from $811.48 to $837.01.
Represents all shares of Common Stock owned, consisting of 15,191 shares of Common Stock and 58,468 shares of Common Stock subject to unvested Restricted Stock grants, 1,213 shares of Deferred Stock Units and 1,213 shares of unvested Restricted Stock Units.
/s/ Jeannette Koonce, Attorney-in-Fact
2021-03-11