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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
COSTAR GROUP INC: CSGP
Price: 3/7/25 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$79.39 $100.38 $68.26 $33,484 422 3,103 0.0% 4.4% 100.46% 1.42%
Exch Sector Industry Sub-Industry
NasdaqGS Services Business Services Services- Business Services, N E C
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#
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
1y
2
100%
-10%
2
SAINT FREDERICK G
PR
S
$221,075
2,500
---
5/16/24
---
$88.43
282,856
-0.9
D
---
5/17/24 - 4:08:29 pm
2
1y
4
25%
17%
1
RUGGLES LISA
VP,OO
S
$1,823,000
20,000
---
5/9/24
---
$91.15
172,616
-10.4
D
---
5/10/24 - 4:11:58 pm
3
    
 
NASSETTA CHRISTOPHER J
DIR
JS
---
46,000
---
5/7/24
---
---
227,615
-16.8
D
---
5/9/24 - 4:16:00 pm
4
    
 
NASSETTA CHRISTOPHER J
DIR
JB
---
46,000
---
5/7/24
---
---
46,000
New
I
---
5/9/24 - 4:16:00 pm
5
    
 
DESMARAIS MICHAEL J
HR
S
$352,146
3,800
---
4/26/24
---
$92.67
64,087
-5.6
D
---
4/30/24 - 4:13:49 pm
6
1y
10
40%
15%
1
WHEELER SCOTT T
CFO
OS
$11,366,581
122,736
---
4/26/24
---
$92.61
303,417
-28.8
D
---
4/30/24 - 4:13:35 pm
7
    
 
WHEELER SCOTT T
CFO
OE
$7,121,813
122,736
---
4/26/24
$39.82
$76.78
426,153
40.5
D
---
4/30/24 - 4:13:35 pm
8
    
 
DESMARAIS MICHAEL J
HR
JS
$199,201
2,267
---
3/15/24
---
$87.87
67,887
-3.2
D
---
3/19/24 - 4:18:33 pm
9
    
 
SIMURO FRANK
CTO
JS
$450,597
5,128
---
3/15/24
---
$87.87
390,504
-1.3
D
---
3/19/24 - 4:18:01 pm
10
    
 
WHEELER SCOTT T
CFO
JS
$741,974
8,444
---
3/15/24
---
$87.87
303,417
-2.7
D
---
3/19/24 - 4:17:37 pm
11
    
 
RUGGLES LISA
VP,OO
JS
$58,521
666
---
3/15/24
---
$87.87
192,616
-0.3
D
---
3/19/24 - 4:17:19 pm
12
    
 
BOXER GENE
GC,SEC
JS
$32,688
372
---
3/15/24
---
$87.87
43,308
-0.9
D
---
3/19/24 - 4:16:53 pm
13
    
 
WHEELER SCOTT T
CFO
JS
---
1,187
---
3/12/24
---
---
311,861
-0.4
D
---
3/14/24 - 4:22:08 pm
14
    
 
WHEELER SCOTT T
CFO
JB
---
1,187
---
3/12/24
---
---
2,084
132.3
I
---
3/14/24 - 4:22:08 pm
15
    
 
FLORANCE ANDREW C
PR,CEO,DIR
JS
$2,108,563
24,228
---
3/1/24
---
$87.03
1,248,367
-1.9
D
---
3/5/24 - 4:34:56 pm
16
    
 
SAINT FREDERICK G
PR
JS
$552,728
6,351
---
3/1/24
---
$87.03
285,356
-2.2
D
---
3/5/24 - 4:34:38 pm
17
    
 
SIMURO FRANK
CTO
JS
$530,100
6,091
---
3/1/24
---
$87.03
395,632
-1.5
D
---
3/5/24 - 4:34:00 pm
18
    
 
WHEELER SCOTT T
CFO
JS
$880,831
10,121
---
3/1/24
---
$87.03
313,048
-3.1
D
R
3/5/24 - 4:32:57 pm
19
    
 
WHEELER SCOTT T
CFO
JB
---
21,308
---
3/1/24
---
---
323,169
7.1
D
R
3/5/24 - 4:32:57 pm
20
    
 
BOXER GENE
GC,SEC
JS
$107,743
1,238
---
3/1/24
---
$87.03
43,680
-2.8
D
R
3/5/24 - 4:32:24 pm
21
    
 
BOXER GENE
GC,SEC
JB
---
8,694
---
3/1/24
---
---
44,918
24.0
D
R
3/5/24 - 4:32:24 pm
22
    
 
DESMARAIS MICHAEL J
HR
JS
$159,178
1,829
---
3/1/24
---
$87.03
70,154
-2.5
D
R
3/5/24 - 4:32:04 pm
23
    
 
DESMARAIS MICHAEL J
HR
JB
---
6,924
---
3/1/24
---
---
71,983
10.6
D
R
3/5/24 - 4:32:04 pm
24
    
 
RUGGLES LISA
VP,OO
JS
$530,100
6,091
---
3/1/24
---
$87.03
193,282
-3.1
D
---
3/5/24 - 4:31:11 pm
25
    
 
SIMURO FRANK
CTO
JS
$380,177
11,727
---
2/22/24
---
$83.98
275,243
-4.1
D
R
2/26/24 - 8:10:21 pm
26
    
 
SIMURO FRANK
CTO
JB
---
126,480
---
2/22/24
---
---
401,723
46.0
D
R
2/26/24 - 8:10:21 pm
27
    
 
SAINT FREDERICK G
PR
JS
$409,906
12,881
---
2/22/24
---
$83.98
222,547
-5.5
D
R
2/26/24 - 8:10:04 pm
28
    
 
SAINT FREDERICK G
PR
JB
---
69,160
---
2/22/24
---
---
291,707
31.1
D
R
2/26/24 - 8:10:04 pm
29
    
 
WHEELER SCOTT T
CFO
JS
$449,041
15,747
---
2/22/24
---
$83.98
301,861
-5.0
D
R
2/26/24 - 8:09:36 pm
30
    
 
DESMARAIS MICHAEL J
HR
JB
---
16,976
---
2/22/24
---
---
65,059
35.3
D
---
2/26/24 - 8:09:17 pm
31
    
 
RUGGLES LISA
VP,OO
JS
$371,863
11,628
---
2/22/24
---
$83.98
141,813
-7.6
D
R
2/26/24 - 8:09:04 pm
32
    
 
RUGGLES LISA
VP,OO
JB
---
57,560
---
2/22/24
---
---
199,373
40.6
D
R
2/26/24 - 8:09:04 pm
33
    
 
BOXER GENE
GC,SEC
JB
---
18,189
---
2/22/24
---
---
36,224
100.9
D
---
2/26/24 - 8:08:41 pm
34
    
 
FLORANCE ANDREW C
PR,CEO,DIR
JS
$1,852,431
53,258
---
2/22/24
---
$83.98
904,755
-5.6
D
R
2/26/24 - 8:08:29 pm
35
    
 
FLORANCE ANDREW C
PR,CEO,DIR
JB
---
367,840
---
2/22/24
---
---
1,272,595
40.7
D
R
2/26/24 - 8:08:29 pm
36
    
 
WHEELER SCOTT T
CFO
JS
$284,992
3,462
---
2/15/24
---
$82.32
317,608
-1.1
D
---
2/20/24 - 5:05:54 pm
37
    
 
FLORANCE ANDREW C
PR,CEO,DIR
JS
$1,341,487
16,296
---
2/15/24
---
$82.32
958,013
-1.7
D
---
2/20/24 - 5:05:26 pm
38
    
 
SIMURO FRANK
CTO
JS
$348,461
4,233
---
2/15/24
---
$82.32
286,970
-1.5
D
---
2/20/24 - 5:05:03 pm
39
    
 
RUGGLES LISA
VP
JS
$194,851
2,367
---
2/15/24
---
$82.32
153,441
-1.5
D
---
2/20/24 - 5:04:27 pm
40
    
 
SAINT FREDERICK G
PR
JS
$193,370
2,349
---
2/15/24
---
$82.32
235,428
-1.0
D
---
2/20/24 - 5:04:00 pm
41
    
 
KLEIN MICHAEL R
DIR
JS
---
60,000
---
11/29/23
---
---
2,003,725
-2.9
D
---
12/1/23 - 4:04:07 pm
42
1y
12
42%
20%
2
HILL JOHN W
DIR
S
$253,891
3,020
---
11/28/23
---
$84.07
17,870
-14.5
D
---
11/29/23 - 4:08:39 pm
43
1y
6
33%
25%
3
NASSETTA CHRISTOPHER J
DIR
S
$116,790
1,500
---
11/8/23
---
$77.86
273,615
-0.5
D
---
11/9/23 - 4:05:18 pm
44
    
 
HILL JOHN W
DIR
JB
---
3,956
---
10/30/23
---
---
20,890
23.4
D
---
11/1/23 - 4:13:51 pm
45
    
 
BRUNNER ANGELIQUE G
DIR
JB
---
3,532
---
10/30/23
---
---
3,532
New
D
---
11/1/23 - 4:13:34 pm
46
    
 
KAPLAN LAURA COX
DIR
JB
---
3,702
---
10/30/23
---
---
14,383
34.7
D
---
11/1/23 - 4:13:20 pm
47
    
 
GLOSSERMAN MICHAEL J
DIR
JB
---
3,913
---
10/30/23
---
---
101,465
4.0
D
---
11/1/23 - 4:13:10 pm
48
    
 
NASSETTA CHRISTOPHER J
DIR
JB
---
4,055
---
10/30/23
---
---
275,115
1.5
D
---
11/1/23 - 4:12:55 pm
49
    
 
SAMS LOUISE S
DIR
JB
---
3,744
---
10/30/23
---
---
12,627
42.1
D
---
11/1/23 - 4:12:40 pm
50
    
 
KLEIN MICHAEL R
DIR
JB
---
4,055
---
10/30/23
---
---
2,063,725
0.2
D
---
11/1/23 - 4:12:26 pm
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