Blair William & Co
- SEC CIK
- 0000902367
- Latest filing
- Aug 11, 2026
CSGP holding history
Costar Group, Inc. in every 13F filed by Blair William & Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
CSGP overviewAll 13F holders of CSGPFull Q2 2026 holdings
- Shares (Q2 2026)
- 658,159
- Value
- $18.6M
- % of portfolio
- <0.1%
- Quarters held
- 22
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 658,159 | $18.6M | <0.1% | −242,154−26.9% | Reduced | Holders |
| Q1 2026 | 900,313 | $36.3M | 0.1% | −1,123,210−55.5% | Reduced | Holders |
| Q4 2025 | 2,023,523 | $136.1M | 0.4% | −1,104,950−35.3% | Reduced | Holders |
| Q3 2025 | 3,128,473 | $263.9M | 0.7% | +257,311+9.0% | Added | Holders |
| Q2 2025 | 2,871,162 | $230.8M | 0.6% | −32,356−1.1% | Reduced | Holders |
| Q1 2025 | 2,903,518 | $230.0M | 0.7% | −490,433−14.5% | Reduced | Holders |
| Q4 2024 | 3,393,951 | $243.0M | 0.7% | −456,885−11.9% | Reduced | Holders |
| Q3 2024 | 3,850,836 | $290.5M | 0.9% | −546,902−12.4% | Reduced | Holders |
| Q2 2024 | 4,397,738 | $326.0M | 1.0% | −22,040−0.5% | Reduced | Holders |
| Q1 2024 | 4,419,778 | $427.0M | 1.3% | +26,800+0.6% | Added | Holders |
| Q4 2023 | 4,392,978 | $383.9M | 1.3% | +201,969+4.8% | Added | Holders |
| Q3 2023 | 4,191,009 | $322.2M | 1.2% | +251,182+6.4% | Added | Holders |
| Q2 2023 | 3,939,827 | $350.6M | 1.3% | +184,794+4.9% | Added | Holders |
| Q1 2023 | 3,755,033 | $258.5M | 1.0% | +44,732+1.2% | Added | Holders |
| Q4 2022 | 3,710,301 | $286.7M | 1.2% | +256,608+7.4% | Added | Holders |
| Q3 2022 | 3,453,693 | $240.6M | 1.1% | +244,909+7.6% | Added | Holders |
| Q2 2022 | 3,208,784 | $193.8M | 0.9% | +453,649+16.5% | Added | Holders |
| Q1 2022 | 2,755,135 | $183.5M | 0.6% | −40,211−1.4% | Reduced | Holders |
| Q4 2021 | 2,795,346 | $220.9M | 0.7% | +71,440+2.6% | Added | Holders |
| Q3 2021 | 2,723,906 | $234.4M | 0.8% | +48,540+1.8% | Added | Holders |
| Q2 2021 | 2,675,366 | $221.6M | 0.8% | +48,906+1.9% | AddedConverted for a 10-for-1 split | Holders |
| Q1 2021 | 262,646 | $215.9M | 0.8% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.