VANGUARD GROUP INC 13D and 13G filings for CoStar Group, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-03-26 5:42 pm Sale | 2026-03-13 | 13G | COSTAR GROUP INC CSGP | VANGUARD GROUP INC | 0 0.000% | -64,909,699 (Position Closed) | Filing |
| 2024-02-13 5:02 pm Purchase | 2023-12-29 | 13G | COSTAR GROUP INC CSGP | VANGUARD GROUP INC | 64,909,699 15.900% | 20,138,014 (+44.98%) | Filing |
| 2023-02-09 11:15 am Purchase | 2022-12-30 | 13G | COSTAR GROUP INC CSGP | VANGUARD GROUP INC | 44,771,685 11.010% | 1,774,063 (+4.13%) | Filing |
| 2022-10-11 10:07 am Purchase | 2022-09-30 | 13G | COSTAR GROUP INC CSGP | VANGUARD GROUP INC | 42,997,622 10.580% | 8,444,691 (+24.44%) | Filing |
| 2022-02-09 3:43 pm Purchase | 2021-12-31 | 13G | COSTAR GROUP INC CSGP | VANGUARD GROUP INC | 34,552,931 8.750% | 11,061 (+0.03%) | Filing |