Home About FAQ Contact Key Subscribe
 
Transaction Types Key To InsiderInsights' Infobase
 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
Reduced Version of Subscription Insider Search
Check all filing types
Uncheck all filing types
Remove The Noise What is the 'Remove The Noise' function?
Insider Portfolio Alerts
Free real time insider alerts
Top Trade Alerts
Free insider trades intra-day
Special Screens Report
Free insider special screens report
Our Input Date Search is an excellent tool to examine the latest insider trades for new long and short investment ideas, but it is only available to paid subscribers.

Click Here to Subscribe

close window
Feature available to paying subscribers only. Subscriber output is also not separated on different pages, so that print outs and Excel downloads contain all of a search's information.

Click Here to Subscribe

close window

Detailed Insider History for:
COSTAR GROUP INC: CSGP
Price: 6/26/26 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
$30.25 $97.43 $28.54 $12,353 408 7,452 0.0% 4.2% 107.83% 1.22%
Exch Sector Industry Sub-Industry
NasdaqGS Services Business Services Services- Business Services, N E C
click column headers to sort
#
View Form
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
    
 
DESMARAIS MICHAEL J
HR
S
$439,340
5,500
---
11/26/24
---
$79.88
58,798
-8.6
D
---
11/27/24 - 6:33:50 pm
2
    
 
CANN CYNTHIA CAMMETT
CAO
S
$100,674
1,310
---
11/11/24
---
$76.85
26,485
-4.7
D
---
3/14/25 - 4:47:56 pm
3
1y
13
31%
22%
2
KLEIN MICHAEL R
DIR
S
$5,350,269
71,633
---
10/25/24
---
$74.69
1,913,501
-3.6
D
---
10/28/24 - 5:14:32 pm
4
    
 
KLEIN MICHAEL R
DIR
JS
---
5,872
---
10/25/24
---
---
1,985,134
-0.3
D
---
10/28/24 - 5:14:32 pm
5
1y
7
57%
20%
2
FLORANCE ANDREW C
PR,CEO,DIR
B
$1,099,966
14,731
---
10/25/24
---
$74.67
1,263,098
1.2
D
---
10/28/24 - 5:13:24 pm
6
    
 
CANN CYNTHIA CAMMETT
CAO
S
$93,840
1,200
---
7/31/24
---
$78.20
27,795
-4.1
D
---
3/14/25 - 4:47:56 pm
7
1y
14
43%
18%
2
HILL JOHN W
DIR
S
$103,562
1,325
---
7/30/24
---
$78.16
16,545
-7.4
D
---
8/1/24 - 4:13:53 pm
8
    
 
KLEIN MICHAEL R
DIR
JS
---
16,500
---
7/27/24
---
---
1,987,225
-0.8
D
---
7/30/24 - 4:11:57 pm
9
    
 
CANN CYNTHIA CAMMETT
CAO
JB
---
9,553
---
7/26/24
---
---
28,995
49.1
D
---
7/30/24 - 4:12:19 pm
10
    
 
SAINT FREDERICK G
PR
JB
---
12,738
---
7/26/24
---
---
295,594
4.5
D
---
7/30/24 - 4:12:08 pm
11
    
 
KLEIN MICHAEL R
DIR
JB
---
3,781
---
7/17/24
---
---
1,991,006
0.2
D
---
8/5/24 - 4:14:12 pm
12
    
 
BRUNNER ANGELIQUE G
DIR
JB
---
3,491
---
7/17/24
---
---
7,023
98.8
D
---
8/5/24 - 4:14:01 pm
13
    
 
SAMS LOUISE S
DIR
JB
---
3,491
---
7/17/24
---
---
16,118
27.6
D
---
8/5/24 - 4:13:51 pm
14
    
 
MUSSLEWHITE ROBERT W
DIR
JB
---
3,293
---
7/17/24
---
---
15,156
27.8
D
---
8/5/24 - 4:13:41 pm
15
    
 
KAPLAN LAURA COX
DIR
JB
---
3,452
---
7/17/24
---
---
17,835
24.0
D
---
8/5/24 - 4:13:30 pm
16
    
 
HILL JOHN W
DIR
JB
---
3,689
---
7/17/24
---
---
20,234
22.3
D
---
8/5/24 - 4:13:19 pm
17
    
 
NASSETTA CHRISTOPHER J
DIR
JB
---
3,781
---
7/17/24
---
---
231,396
1.7
D
---
8/5/24 - 4:12:58 pm
18
    
 
CANN CYNTHIA CAMMETT
CAO
3
---
---
---
7/8/24
---
---
19,442
---
D
---
7/18/24 - 4:07:09 pm
19
    
 
LOWN CHRISTIAN M
CFO
JB
---
33,839
---
7/1/24
---
---
33,839
New
D
---
7/3/24 - 4:12:12 pm
20
    
 
LOWN CHRISTIAN M
CFO
3
---
---
---
7/1/24
---
---
---
---
D
---
7/3/24 - 4:10:37 pm
Subscribe Data Module Screens Alerts Newsletter Daily Ratings Reports Free Stuff
Home About FAQ Contact Disclaimer & Terms Of Use Privacy Transaction Codes
© 2026 InsiderInsights.com