← All Investors
COSTAR GROUP INC
CSGP
Holders
2
Combined Value
$477.96M
Combined Shares
11,848,273
Current Price
$32.84
52W High
$97.43
vs 52W High
−66.3%
Investor Activity Chart
Quarterly buys (▲) and sells (▼) by tracked investors. Click a marker to view that investor's portfolio; hover for details. Price line is implied from 13F filings (value ÷ shares), not market data.
Held By
Tracked investors currently holding this security, based on each investor's most recent 13F filing. Gain compares the current market price to each investor's estimated average buy price.
| Investor | Value | % of Portfolio | Avg Buy Price | Gain | Last Activity | As of |
|---|---|---|---|---|---|---|
| Chuck Akre - Akre Capital Management | $417.45M | 6.80% | ~$71.47 | −54.1% | BUY Q1 2026 | Q1 2026 |
| Chase Coleman - Tiger Global Management | $60.51M | 0.26% | ~$71.59 | −54.1% | SELL Q1 2026 | Q1 2026 |
Recent Activity
Latest position changes by tracked investors. Prices are estimates implied from 13F filings.
Ownership History
Aggregate position across all tracked investors per quarter (options excluded). Implied price is the reported value divided by shares held.
| Period | Holders | Total Shares | Δ Shares | Total Value | Implied Price |
|---|---|---|---|---|---|
| Q1 2026 | 2 | 11,848,273 | -11.0% | $477.96M | $40.34 |
| Q4 2025 | 3 | 13,319,496 | -23.5% | $895.60M | $67.24 |
| Q3 2025 | 4 | 17,418,323 | -7.7% | $1.47B | $84.37 |
| Q2 2025 | 5 | 18,876,509 | +29.7% | $1.52B | $80.40 |
| Q1 2025 | 4 | 14,552,301 | +5.9% | $1.15B | $79.23 |
| Q4 2024 | 4 | 13,740,292 | +32.3% | $983.67M | $71.59 |
| Q3 2024 | 4 | 10,389,068 | +10.3% | $783.75M | $75.44 |
| Q2 2024 | 3 | 9,418,803 | — | $698.31M | $74.14 |