Cann Cynthia Cammett, Chief Accounting Officer of CoStar Group, Inc. (CSGP), made two open market sales of company stock over the past year, totaling about $315,000. Her most recent sale occurred on November 13, 2025. These sales rank her 7,435th among 11,678 individual insiders in our database by total value sold, below the average of nearly $8.6 million across about 6.4 transactions per insider. She reported no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | F | Common Stock, par value $0.01 per share | 1194 | $43.63 | 25,148.0000 | 424,900,000 | 4.53% | 0.00% |
| March 10, 2026 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | A | Common Stock, par value $0.01 per share | 4374 | $0.00 | 26,342.0000 | 424,900,000 | 19.91% | 0.00% |
| Feb. 27, 2026 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | A | Restricted Stock Units | 6834 | $0.00 | 6,834.0000 | 424,900,000 | 9999.99% | 0.00% |
| March 1, 2026 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | F | Common Stock, par value $0.01 per share | 1385 | $44.63 | 21,968.0000 | 424,900,000 | 5.93% | 0.00% |
| Nov. 13, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | S | Common Stock, par value $0.01 per share | 1841 | $68.79 | 23,211.0000 | 424,900,000 | 7.35% | 0.00% |
| Aug. 1, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | F | Common Stock, par value $0.01 per share | 719 | $95.19 | 25,052.0000 | 424,100,000 | 2.79% | 0.00% |
| July 28, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | S | Common Stock, par value $0.01 per share | 2033 | $92.85 | 25,771.0000 | 424,100,000 | 7.31% | 0.00% |
| June 15, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | F | Common Stock, par value $0.01 per share | 461 | $81.16 | 27,804.0000 | 423,400,000 | 1.63% | 0.00% |
| March 15, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | F | Common Stock, par value $0.01 per share | 1191 | $78.73 | 28,265.0000 | 409,500,000 | 4.04% | 0.00% |
| Nov. 11, 2024 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | S | Common Stock, par value $0.01 per share | 1310 | $76.85 | 26,485.0000 | 409,500,000 | 4.71% | 0.00% |
| March 10, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | S | Common Stock, par value $0.01 per share | 1749 | $79.90 | 29,456.0000 | 409,500,000 | 5.60% | 0.00% |
| July 31, 2024 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | S | Common Stock, par value $0.01 per share | 1200 | $78.20 | 27,795.0000 | 409,300,000 | 4.14% | 0.00% |
| March 5, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | A | Common Stock, par value $0.01 per share | 1498 | $0.00 | 33,715.0000 | 409,500,000 | 4.65% | 0.00% |
| March 1, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | F | Common Stock, par value $0.01 per share | 813 | $76.25 | 32,217.0000 | 409,500,000 | 2.46% | 0.00% |
| Feb. 27, 2025 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | A | Common Stock, par value $0.01 per share | 4035 | $0.00 | 33,030.0000 | 409,500,000 | 13.92% | 0.00% |
| July 26, 2024 | COSTAR GROUP, INC. | $CSGP | Cann Cynthia Cammett | Chief Accounting Officer | A | Common Stock, par value $0.01 per share | 9553 | $0.00 | 28,995.0000 | 409,300,000 | 49.14% | 0.00% |