Security · featured owners
CSGP Costar Group Inc.
Real Estate COM Equity as of 2026 Q2 among managers we track
- 6 Owners
- #247
- Max 6.5%
- Master 0.08%
- $1.4B
- 4 add 2 reduce 3 exits
CSGP (Costar Group Inc.) is held in 6 featured 13F books as of 2026 Q2. Chuck Akre - Akre Capital Management is the largest tracked holder by portfolio weight (6.5%). Figures are as-filed 13F, not free float.
Who owns this now
Largest portfolio weights among featured holders · max 6.5% (Chuck Akre - Akre Capital Management) · not free-float ownership
holders
sorted by value · long equity only · current book 2026 Q2 · exits show last held size · open a manager for their book
| history | |||||
|---|---|---|---|---|---|
| Ron Baron - Bamco Inc. (Baron Capital) 2026 Q2 | 0.92% | Add +32.6% | 21,626,763 | $612M | history |
| Chuck Akre - Akre Capital Management 2026 Q2 | 6.5% | Add +13.1% | 11,699,396 | $331M | history |
| Polen Capital Management 2026 Q2 | 2.1% | Reduce −30.3% | 8,759,314 | $248M | history |
| Chris James - Meritage Group 2026 Q2 | 5.9% | Add +62.0% | 5,394,164 | $153M | history |
| Wallace Weitz - Weitz Investment Management 2026 Q2 | 0.83% | Reduce −18.2% | 423,181 | $12M | history |
| Hillman Capital Management 2026 Q2 | 0.22% | Add +25.6% | 10,745 | $304K | history |
| Chase Coleman - Tiger Global Management exited 2026 Q2 last 2026 Q1 | 0.26% | Exit −0.26% | 1,500,000 | $61M | history |
| Corvex Management exited 2026 Q2 last 2026 Q1 | 1.4% | Exit −1.37% | 851,734 | $34M | history |
| Dennis Hong - Shawspring Partners exited 2026 Q2 last 2026 Q1 | 5.1% | Exit −5.11% | 339,081 | $14M | history |
SEC filings
Recent issuer filings from EDGAR · 11 shown · open Filing / Doc on SEC.gov
| Filed | Form | Detail | Links |
|---|---|---|---|
| 8-K | 7.01,9.01 | Filing Doc | |
| 10-Q | Filing Doc | ||
| 8-K | 2.02,9.01 | Filing Doc | |
| 8-K | 5.02,7.01,9.01 | Filing Doc | |
| 8-K | 5.02,5.07,7.01,9.01 | Filing Doc | |
| 8-K | 1.01,7.01,9.01 | Filing Doc | |
| DEFA14A | Filing Doc | ||
| DEFA14A | Filing Doc | ||
| 10-Q | Filing Doc | ||
| 8-K | 2.02,7.01,9.01 | Filing Doc | |
| 8-K | 5.02,7.01 | Filing Doc |
No filings match this filter.
Insider forms
Form 3 / 4 / 5 from EDGAR · 12 rows shown
| Filed | Form | Detail | Links |
|---|---|---|---|
| 4 | Period Aug 5, 2026 | Filing Doc | |
| 4 | Period Aug 7, 2026 | Filing Doc | |
| 4 | Period Aug 4, 2026 | Filing Doc | |
| 4 | Period Aug 1, 2026 | Filing Doc | |
| 4 | Period Jul 31, 2026 · 2 forms | Filing Doc | |
| 4 | Period Jul 1, 2026 | Filing Doc | |
| 4 | Period Jun 23, 2026 · 7 forms | Filing Doc | |
| 4 | Period Jun 15, 2026 | Filing Doc | |
| 4 | Period May 1, 2026 | Filing Doc | |
| 4 | Period Mar 15, 2026 · 5 forms | Filing Doc | |
| 4/A | Period Mar 15, 2026 | Filing Doc | |
| 4 | Period Mar 10, 2026 · 3 forms | Filing Doc |
financials
US-GAAP annual · as tagged in Form 10-K · fiscal years · values link to the SEC filing
Income statement
Balance sheet
ownership over time
filing count by report period · click a bar for that quarter’s holders