Stocks · Industrials · Services-Business Services, NEC

CoStar Group

CSGP Clue Score48
United States Fiscal year ends December CIK 0001057352 Results filed 27 Oct 2026

What the insiders did Net selling

Insider
Date
Role
Action
Shares
Price
Amount
Andrew C Florance
4 Aug 2026
Founder and CEO
Buy
83,300
$29.89
$2.49M
Andrew C Florance
1 May 2026
President and CEO
Buy
3,100
$35.82
$111.04K
Andrew C Florance
1 May 2026
President and CEO
Buy
68,330
$35.17
$2.40M
Louise S Sams
6 Mar 2026
Director
Buy
1,000
$48.36
$48.36K
Frederick G. Saint
2 Mar 2026
President, Marketplaces
Buy
20,000
$45.33
$906.60K
Rachel C Glaser
2 Mar 2026
Director
Buy
1,000
$44.94
$44.94K
Andrew C Florance
27 Feb 2026
President and CEO
Buy
55,720
$44.52
$2.48M
Andrew C Florance
25 Oct 2024
President and CEO
Buy
14,731
$74.67
$1.10M

What was left out

Form 4 filings counted 387
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 27
Sales at will 70
Transactions with no price 0
Shares from compensation/vesting 6,160,711
Sales filed before the plan box existed 42
History held since 26 Oct 2006