CSGP
COSTAR GROUP, INC.Company with tickers: CSGP
CIK
1057352
CUSIP
22160N109
Shares Outstanding
408,355,715
Price History
Institutional Holders
Short Volume
Short Interest
Fails to Deliver
SEC Filings
Earnings Calls
Insider Trades
Congressional Trades
| Date | Insider | Role | Type | Shares |
|---|---|---|---|---|
| 2026-05-01 | FLORANCE ANDREW C | Director, President and CEO | Buy | 68,330 |
| 2026-05-01 | FLORANCE ANDREW C | Director, President and CEO | Buy | 3,100 |
| 2026-03-15 | DESMARAIS MICHAEL J | Chief Human Resources Officer | Tax | 2,873 |
| 2026-03-15 | Ruggles Lisa | Senior VP, Global Operations | Tax | 2,977 |
| 2026-03-15 | SIMURO FRANK | Chief Technology Officer | Tax | 11,107 |
| 2026-03-15 | Boxer Gene | General Counsel and Secretary | Tax | 428 |
| 2026-03-15 | Cann Cynthia Cammett | Chief Accounting Officer | Tax | 1,194 |
| 2026-03-15 | Banerjee Nana | Director | Other | 0 |
| 2026-03-10 | Cann Cynthia Cammett | Chief Accounting Officer | Award | 4,374 |
| 2026-03-10 | FLORANCE ANDREW C | Director, President and CEO | Award | 124,162 |
| 2026-03-10 | LOWN CHRISTIAN M. | EVP & Chief Financial Officer | Award | 12,268 |
| 2026-03-10 | Boxer Gene | General Counsel and Secretary | Award | 21,920 |
| 2026-03-10 | DESMARAIS MICHAEL J | Chief Human Resources Officer | Award | 17,676 |
| 2026-03-06 | Sams Louise S | Director | Buy | 1,000 |
| 2026-03-02 | SAINT FREDERICK G. | President, Marketplaces | Buy | 20,000 |
| 2026-03-02 | Glaser Rachel C | Director | Buy | 1,000 |
| 2026-03-01 | SAINT FREDERICK G. | President, Marketplaces | Tax | 11,096 |
| 2026-03-01 | LOWN CHRISTIAN M. | EVP & Chief Financial Officer | Tax | 7,175 |
| 2026-03-01 | FLORANCE ANDREW C | Director, President and CEO | Tax | 59,593 |
| 2026-03-01 | Boxer Gene | General Counsel and Secretary | Tax | 4,547 |
| 2026-03-01 | DESMARAIS MICHAEL J | Chief Human Resources Officer | Tax | 6,353 |
| 2026-03-01 | Cann Cynthia Cammett | Chief Accounting Officer | Tax | 1,385 |
| 2026-03-01 | Ruggles Lisa | Senior VP, Global Operations | Tax | 8,931 |
| 2026-03-01 | SIMURO FRANK | Chief Technology Officer | Tax | 18,702 |
| 2026-02-27 | LOWN CHRISTIAN M. | EVP & Chief Financial Officer | Award | 39,652 |
| 2026-02-27 | SAINT FREDERICK G. | President, Marketplaces | Award | 39,652 |
| 2026-02-27 | FLORANCE ANDREW C | Director, President and CEO | Award | 83,708 |
| 2026-02-27 | Boxer Gene | General Counsel and Secretary | Award | 26,888 |
| 2026-02-27 | DESMARAIS MICHAEL J | Chief Human Resources Officer | Award | 17,926 |
| 2026-02-27 | Cann Cynthia Cammett | Chief Accounting Officer | Award | 6,834 |
| 2026-02-27 | Ruggles Lisa | Senior VP, Global Operations | Award | 28,197 |
| 2026-02-27 | SIMURO FRANK | Chief Technology Officer | Award | 52,869 |
| 2026-02-27 | FLORANCE ANDREW C | Director, President and CEO | Buy | 55,720 |
| 2026-02-19 | SIMURO FRANK | Chief Technology Officer | Tax | 4,421 |
| 2026-02-19 | SIMURO FRANK | Chief Technology Officer | Other | 30,727 |
| 2026-02-19 | SAINT FREDERICK G. | President, Marketplaces | Other | 17,583 |
| 2026-02-19 | SAINT FREDERICK G. | President, Marketplaces | Tax | 2,149 |
| 2026-02-19 | FLORANCE ANDREW C | Director, President and CEO | Tax | 19,221 |
| 2026-02-19 | FLORANCE ANDREW C | Director, President and CEO | Other | 104,983 |
| 2026-02-19 | Ruggles Lisa | Senior VP, Global Operations | Tax | 3,219 |
| 2026-02-19 | Ruggles Lisa | Senior VP, Global Operations | Other | 17,583 |
| 2026-02-15 | SAINT FREDERICK G. | President, Marketplaces | Tax | 2,424 |
| 2026-02-15 | SIMURO FRANK | Chief Technology Officer | Tax | 4,151 |
| 2026-02-15 | FLORANCE ANDREW C | Director, President and CEO | Tax | 17,482 |
| 2026-02-15 | Ruggles Lisa | Senior VP, Global Operations | Tax | 3,576 |
| 2025-11-13 | Hill John W | Director | Sell | 2,250 |
| 2025-11-13 | Cann Cynthia Cammett | Chief Accounting Officer | Sell | 1,841 |
| 2025-09-09 | Hill John W | Director | Award | 3,177 |
| 2025-09-09 | Glaser Rachel C | Director | Award | 3,143 |
| 2025-09-09 | Brunner Angelique G. | Director | Award | 3,143 |
| 2025-09-09 | McCarthy Christine M | Director | Award | 2,973 |
| 2025-09-09 | Sams Louise S | Director | Award | 3,291 |
| 2025-09-09 | BERISFORD JOHN L | Executive Advisor | Award | 2,973 |
| 2025-09-09 | Musslewhite Robert W | Director, Chief Executive Officer | Award | 3,121 |
| 2025-08-28 | SAINT FREDERICK G. | President, Marketplaces | Sell | 25,000 |
| 2025-08-01 | Cann Cynthia Cammett | Chief Accounting Officer | Tax | 719 |
| 2025-08-01 | SAINT FREDERICK G. | President, Marketplaces | Tax | 1,436 |
| 2025-07-28 | SAINT FREDERICK G. | President, Marketplaces | Sell | 25,000 |
| 2025-07-28 | Cann Cynthia Cammett | Chief Accounting Officer | Sell | 2,033 |
| 2025-07-01 | LOWN CHRISTIAN M. | EVP & Chief Financial Officer | Tax | 4,666 |
| 2025-06-15 | Cann Cynthia Cammett | Chief Accounting Officer | Tax | 461 |
| 2025-06-11 | SAINT FREDERICK G. | President, Marketplaces | Sell | 25,000 |
| 2025-06-01 | Ruggles Lisa | Senior VP, Global Operations | Tax | 12 |
| 2025-04-06 | BERISFORD JOHN L | Executive Advisor | Other | 0 |
| 2025-04-06 | Glaser Rachel C | Director | Other | 0 |
| 2025-04-06 | McCarthy Christine M | Director | Other | 0 |
| 2025-03-15 | DESMARAIS MICHAEL J | Chief Human Resources Officer | Tax | 3,641 |
| 2025-03-15 | Ruggles Lisa | Senior VP, Global Operations | Tax | 1,958 |
| 2025-03-15 | Boxer Gene | General Counsel and Secretary | Tax | 481 |
| 2025-03-15 | Cann Cynthia Cammett | Chief Accounting Officer | Tax | 1,191 |
| 2025-03-15 | SIMURO FRANK | Chief Technology Officer | Tax | 5,700 |
| 2025-03-10 | Cann Cynthia Cammett | Chief Accounting Officer | Sell | 1,749 |
| 2025-03-05 | Boxer Gene | General Counsel and Secretary | Award | 12,492 |
| 2025-03-05 | DESMARAIS MICHAEL J | Chief Human Resources Officer | Award | 9,026 |
| 2025-03-05 | Cann Cynthia Cammett | Chief Accounting Officer | Award | 1,498 |
| 2025-03-05 | FLORANCE ANDREW C | Director, President and CEO | Award | 76,232 |
| 2025-03-01 | DESMARAIS MICHAEL J | Chief Human Resources Officer | Tax | 3,893 |
| 2025-03-01 | Cann Cynthia Cammett | Chief Accounting Officer | Tax | 813 |
| 2025-03-01 | FLORANCE ANDREW C | Director, President and CEO | Tax | 41,296 |
| 2025-03-01 | Ruggles Lisa | Senior VP, Global Operations | Tax | 7,410 |
| 2025-03-01 | SAINT FREDERICK G. | President, Marketplaces | Tax | 8,252 |
| 2025-03-01 | Boxer Gene | General Counsel and Secretary | Tax | 3,644 |
| 2025-03-01 | SIMURO FRANK | Chief Technology Officer | Tax | 12,432 |
| 2025-02-27 | DESMARAIS MICHAEL J | Chief Human Resources Officer | Award | 18,828 |
| 2025-02-27 | Cann Cynthia Cammett | Chief Accounting Officer | Award | 4,035 |
| 2025-02-27 | Boxer Gene | General Counsel and Secretary | Award | 26,897 |
| 2025-02-20 | SIMURO FRANK | Chief Technology Officer | Award | 33,000 |
| 2025-02-20 | SIMURO FRANK | Chief Technology Officer | Award | 130,640 |
| 2025-02-20 | FLORANCE ANDREW C | Director, President and CEO | Award | 451,440 |
| 2025-02-20 | FLORANCE ANDREW C | Director, President and CEO | Award | 114,000 |
| 2025-02-20 | LOWN CHRISTIAN M. | EVP & Chief Financial Officer | Award | 24,600 |
| 2025-02-20 | LOWN CHRISTIAN M. | EVP & Chief Financial Officer | Award | 97,600 |
| 2025-02-20 | Ruggles Lisa | Senior VP, Global Operations | Award | 65,440 |
| 2025-02-20 | Ruggles Lisa | Senior VP, Global Operations | Award | 16,500 |
| 2025-02-20 | SAINT FREDERICK G. | President, Marketplaces | Award | 24,600 |
| 2025-02-20 | SAINT FREDERICK G. | President, Marketplaces | Award | 97,600 |
| 2025-02-15 | SIMURO FRANK | Chief Technology Officer | Tax | 5,485 |
| 2025-02-15 | Ruggles Lisa | Senior VP, Global Operations | Tax | 3,531 |
| 2025-02-15 | SAINT FREDERICK G. | President, Marketplaces | Tax | 2,349 |
| 2025-02-15 | FLORANCE ANDREW C | Director, President and CEO | Tax | 14,235 |