Ownership history in Magnetar Financial LLC · 11 quarters on record
This page tracks every 13F SEC filing in which Magnetar Financial LLC reported a position in COSTAR GROUP INC COM (CSGP). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | REDUCED | 9,878 | -51,526 | -83.9% | 0.01% | $833K | $84.37 |
| 2024 Q2 | ADDED | 61,404 | +51,744 | +535.7% | 0.09% | $4.6M | $74.14 |
| 2023 Q4 | REDUCED | 9,660 | -38,088 | -79.8% | 0.02% | $844K | $87.39 |
| 2023 Q1 | ADDED | 47,748 | +15,598 | +48.5% | 0.06% | $3.3M | $68.85 |
| 2022 Q4 | ADDED | 32,150 | +9,103 | +39.5% | 0.04% | $2.5M | $77.28 |
| 2021 Q4 | ADDED | 23,047 | +11,443 | +98.6% | 0.02% | $1.8M | $79.03 |
| 2021 Q2 | ADDED | 11,604 | +7,241 | +166.0% | 0.01% | $961K | $82.82 |
| 2021 Q1 | REDUCED | 4,363 | -10,888 | -71.4% | 0.03% | $3.6M | $82.19 |
| 2017 Q3 | ADDED | 15,251 | +6,865 | +81.9% | 0.09% | $4.1M | $26.83 |
| 2011 Q2 | REDUCED | 8,386 | -683 | -7.5% | 0.02% | $497K | $5.93 |
As of 2025 Q4 — sorted by position size