Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2023-04-28 Sale | 2023-05-02 5:45 pm | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 360,530 | $76.77 | $27,677,888 | 974,309 (Direct) | View |
| 2021-03-10 Sale | 2021-03-11 4:23 pm | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 19,570 | $818.37 | $16,015,501 | 76,085 (Direct) | View |
| 2020-08-26 Sale | 2020-08-28 4:28 pm | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 31,168 | $849.91 | $26,489,995 | 122,705 (Direct) | View |
| 2020-03-02 Sale | 2020-03-03 7:16 pm | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 33,600 | $663.9 | $22,307,040 | 110,147 (Direct) | View |
| 2019-07-26 Sale | 2019-07-30 5:09 pm | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 24,210 | $628.64 | $15,219,374 | 96,298 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2024-03-01 Tax Withholding | 2024-03-05 4:34 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 24,228 | $87.03 | 1,248,367 (Direct) | View |
| 2024-02-22 Disposition | 2024-02-26 8:08 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 31,200 | $0 | 1,363,095 (Direct) | View |
| 2024-02-22 Tax Withholding | 2024-02-26 8:08 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 22,058 | $83.98 | 1,363,095 (Direct) | View |
| 2024-02-22 Option Award | 2024-02-26 8:08 pm | N/A 2034-02-21 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 458,340 | $0 | 1,363,095 (Direct) | View |
| 2024-02-15 Tax Withholding | 2024-02-20 5:05 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 16,296 | $82.32 | 958,013 (Direct) | View |
| 2023-04-28 Exercise | 2023-05-02 5:45 pm | N/A 2026-03-10 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 360,530 | $0 | 974,309 (Direct) | View |
| 2023-04-28 Exercise | 2023-05-02 5:45 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 360,530 | $18.28 | 974,309 (Direct) | View |
| 2023-03-15 Tax Withholding | 2023-03-17 5:32 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 9,261 | $67.62 | 974,309 (Direct) | View |
| 2023-03-15 Option Award | 2023-03-17 5:32 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 37,844 | $0 | 974,309 (Direct) | View |
| 2023-03-01 Tax Withholding | 2023-03-03 5:51 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 24,224 | $70.66 | 964,087 (Direct) | View |
| 2023-02-14 Disposition | 2023-02-16 7:42 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 68,537 | $0 | 1,061,711 (Direct) | View |
| 2023-02-14 Option Award | 2023-02-16 7:42 pm | N/A 2033-02-13 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 359,300 | $0 | 1,061,711 (Direct) | View |
| 2023-02-15 Tax Withholding | 2023-02-16 7:42 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 12,471 | $76.78 | 1,061,711 (Direct) | View |
| 2022-09-14 Option Award | 2022-09-15 4:57 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 48 | $0 | 783,419 (Direct) | View |
| 2022-03-01 Tax Withholding | 2022-03-03 5:00 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 11,541 | $61.01 | 783,371 (Direct) | View |
| 2022-02-16 Disposition | 2022-02-18 6:57 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 34,685 | $0 | 896,312 (Direct) | View |
| 2022-02-16 Tax Withholding | 2022-02-18 6:57 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 50,570 | $67.69 | 896,312 (Direct) | View |
| 2022-02-15 Tax Withholding | 2022-02-18 6:57 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 32,383 | $65.99 | 896,312 (Direct) | View |
| 2022-02-16 Option Award | 2022-02-18 6:57 pm | N/A 2032-02-15 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 301,300 | $0 | 896,312 (Direct) | View |
| 2021-06-29 Ownership | 2022-02-09 6:08 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 48,200 | $0 | 712,650 (Direct) | View |
| 2021-02-28 Disposition | 2021-03-02 4:20 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 799 | $0 | 95,655 (Direct) | View |
| 2021-02-28 Tax Withholding | 2021-03-02 4:20 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 5,522 | $823.76 | 95,655 (Direct) | View |
| 2021-02-18 Option Award | 2021-02-19 5:13 pm | N/A 2031-02-17 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 26,160 | $0 | 109,976 (Direct) | View |
| 2021-02-15 Tax Withholding | 2021-02-17 4:23 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 3,305 | $939.76 | 83,816 (Direct) | View |
| 2020-05-07 Gift | 2021-01-04 4:13 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 20,000 | $0 | 87,121 (Direct) | View |
| 2020-08-26 Exercise | 2020-08-28 4:28 pm | N/A 2025-03-04 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 31,168 | $0 | 122,705 (Direct) | View |
| 2020-08-26 Exercise | 2020-08-28 4:28 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 31,168 | $193.69 | 122,705 (Direct) | View |
| 2020-03-31 Tax Withholding | 2020-04-02 6:10 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 3,026 | $599.99 | 107,121 (Direct) | View |
| 2020-02-29 Tax Withholding | 2020-03-03 7:16 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 7,974 | $667.59 | 110,147 (Direct) | View |
| 2020-03-02 Exercise | 2020-03-03 7:16 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 33,600 | $201.04 | 110,147 (Direct) | View |
| 2020-03-02 Exercise | 2020-03-03 7:16 pm | N/A 2024-02-27 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 33,600 | $0 | 110,147 (Direct) | View |
| 2020-02-15 Tax Withholding | 2020-02-19 5:43 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 2,276 | $731.37 | 118,121 (Direct) | View |
| 2020-02-06 Option Award | 2020-02-10 5:17 pm | N/A 2030-02-05 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 38,720 | $0 | 136,597 (Direct) | View |
| 2019-12-31 Exercise | 2020-01-02 6:03 pm | N/A 2025-03-04 | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 1,579 | $0 | 165,098 (Direct) | View |
| 2019-12-31 Exercise | 2020-01-02 6:03 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 547 | $182.75 | 165,098 (Direct) | View |
| 2019-12-31 Exercise | 2020-01-02 6:03 pm | N/A N/A | COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO | 1,032 | $193.69 | 165,098 (Direct) | View |