Harding Catrina
Chief Human Resources Officer
Award
Calculated transaction value
$0
12,805 shares @ $0
Traded
Nov 9, 2026
Filed
Nov 10, 2026
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CoStar Group Inc
CSGP
ServicesBusiness Services
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
18 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Harding Catrina Chief Human Resources Officer | Nov 10, 2026 1-day lag | Award Nov 9, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Rossmann Robin Jack Chief Financial Officer | Oct 16, 2026 1-day lag | Disposition Oct 15, 2026 | $24.19K Filed shares x price | SEC Form 4 View filing | |
| Cann Cynthia Cammett Chief Accounting Officer | Aug 10, 2026 3-day lag | Sale Aug 7, 2026 | $147.37K Filed shares x price | SEC Form 4 View filing | |
| Hill John W Director | Aug 10, 2026 5-day lag | Sale Aug 5, 2026 | $105.73K Filed shares x price | SEC Form 4 View filing | |
| Florance Andrew C Founder And CEO | Aug 5, 2026 1-day lag | Buy Aug 4, 2026 | $2.49M Filed shares x price | SEC Form 4 View filing | |
| Rossmann Robin Jack Chief Financial Officer | Aug 4, 2026 4-day lag | Award Jul 31, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Cann Cynthia Cammett Chief Accounting Officer | Aug 4, 2026 3-day lag | Disposition Aug 1, 2026 | $30.97K Filed shares x price | SEC Form 4 View filing | |
| Cann Cynthia Cammett Chief Accounting Officer | Aug 4, 2026 4-day lag | Award Jul 31, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| S AI Nt Frederick G. President, Marketplaces | Aug 4, 2026 3-day lag | Disposition Aug 1, 2026 | $41.3K Filed shares x price | SEC Form 4 View filing | |
| Lown Christian M. Chief Financial Officer | Jul 6, 2026 5-day lag | Disposition Jul 1, 2026 | $164.33K Filed shares x price | SEC Form 4 View filing | |
| Sams Louise S Director | Jun 24, 2026 1-day lag | Award Jun 23, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Glaser Rachel C Director | Jun 24, 2026 1-day lag | Award Jun 23, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Brunner Angelique G. Director | Jun 24, 2026 1-day lag | Award Jun 23, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Mccarthy Christine M Director | Jun 24, 2026 1-day lag | Award Jun 23, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Hill John W Director | Jun 24, 2026 1-day lag | Award Jun 23, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Berisford John L Director | Jun 24, 2026 1-day lag | Award Jun 23, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Musslewhite Robert W Director | Jun 24, 2026 1-day lag | Award Jun 23, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Cann Cynthia Cammett Chief Accounting Officer | Jun 16, 2026 1-day lag | Disposition Jun 15, 2026 | $14.77K Filed shares x price | SEC Form 4 View filing |
Rossmann Robin Jack
Chief Financial Officer
Disposition
Calculated transaction value
$24.19K
756 shares @ $32
Traded
Oct 15, 2026
Filed
Oct 16, 2026
Cann Cynthia Cammett
Chief Accounting Officer
Sale
Calculated transaction value
$147.37K
4,788 shares @ $30.78
Traded
Aug 7, 2026
Filed
Aug 10, 2026
Hill John W
Director
Sale
Calculated transaction value
$105.73K
3,500 shares @ $30.21
Traded
Aug 5, 2026
Filed
Aug 10, 2026
Florance Andrew C
Founder And CEO
Buy
Calculated transaction value
$2.49M
83,300 shares @ $29.89
Traded
Aug 4, 2026
Filed
Aug 5, 2026
Rossmann Robin Jack
Chief Financial Officer
Award
Calculated transaction value
$0
34,771 shares @ $0
Traded
Jul 31, 2026
Filed
Aug 4, 2026
Cann Cynthia Cammett
Chief Accounting Officer
Disposition
Calculated transaction value
$30.97K
1,077 shares @ $28.76
Traded
Aug 1, 2026
Filed
Aug 4, 2026
Cann Cynthia Cammett
Chief Accounting Officer
Award
Calculated transaction value
$0
26,078 shares @ $0
Traded
Jul 31, 2026
Filed
Aug 4, 2026
S AI Nt Frederick G.
President, Marketplaces
Disposition
Calculated transaction value
$41.3K
1,436 shares @ $28.76
Traded
Aug 1, 2026
Filed
Aug 4, 2026
Lown Christian M.
Chief Financial Officer
Disposition
Calculated transaction value
$164.33K
5,597 shares @ $29.36
Traded
Jul 1, 2026
Filed
Jul 6, 2026
Sams Louise S
Director
Award
Calculated transaction value
$0
8,262 shares @ $0
Traded
Jun 23, 2026
Filed
Jun 24, 2026
Glaser Rachel C
Director
Award
Calculated transaction value
$0
8,262 shares @ $0
Traded
Jun 23, 2026
Filed
Jun 24, 2026
Brunner Angelique G.
Director
Award
Calculated transaction value
$0
8,262 shares @ $0
Traded
Jun 23, 2026
Filed
Jun 24, 2026
Mccarthy Christine M
Director
Award
Calculated transaction value
$0
8,262 shares @ $0
Traded
Jun 23, 2026
Filed
Jun 24, 2026
Hill John W
Director
Award
Calculated transaction value
$0
8,262 shares @ $0
Traded
Jun 23, 2026
Filed
Jun 24, 2026
Berisford John L
Director
Award
Calculated transaction value
$0
8,262 shares @ $0
Traded
Jun 23, 2026
Filed
Jun 24, 2026
Musslewhite Robert W
Director
Award
Calculated transaction value
$0
8,262 shares @ $0
Traded
Jun 23, 2026
Filed
Jun 24, 2026
Cann Cynthia Cammett
Chief Accounting Officer
Disposition
Calculated transaction value
$14.77K
461 shares @ $32.04
Traded
Jun 15, 2026
Filed
Jun 16, 2026