Updated
CoStarCSGP · Real Estate
$29.90-4.30%
Market cap$12.0B
IndustryReal Estate Services
CoStar (CSGP) Superinvestor holders
26 of the superinvestors we track hold CoStar (CSGP) in their latest 13F filings, $2.2B in total.
Summary
The largest holder is Ron Baron (Baron Capital (BAMCO)), with $612M, 0.9% of the portfolio.
In their latest quarter: 2 opened a new position, 17 added, 7 trimmed.
Who holds it
Each investor's latest 13F filing, largest stake first. What a 13F shows.
| Investor | Last change | Shares | Value | % of portfolio | Filed for |
|---|---|---|---|---|---|
| Ron Baron Baron Capital (BAMCO) |
Added | 21,626,763 | $612M | 0.9% | Q2 2026 |
| Chuck Akre Akre Capital Management |
Added | 11,699,396 | $331M | 6.5% | Q2 2026 |
| Baillie Gifford Baillie Gifford & Co |
Trimmed | 11,383,303 | $312M | 0.3% | Q3 2026 |
| Dan Davidowitz Polen Capital Management |
Trimmed | 8,759,314 | $248M | 2.1% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Added | 8,445,474 | $239M | 0.1% | Q2 2026 |
| James Robillard Spyglass Capital Management |
Added | 2,694,697 | $76M | 4.1% | Q2 2026 |
| Ensign Peak Ensign Peak Advisors |
Trimmed | 2,373,407 | $67M | 0.1% | Q2 2026 |
| David Vogel Voloridge Investment Management |
Added | 1,543,483 | $44M | 0.2% | Q2 2026 |
| Paul Marshall Marshall Wace |
Added | 1,381,204 | $39M | 0.0% | Q2 2026 |
| Arrowstreet Capital | Added | 1,299,558 | $37M | 0.0% | Q2 2026 |
| Two Sigma Two Sigma Investments |
Added | 1,104,950 | $31M | 0.0% | Q2 2026 |
| David Shaw D. E. Shaw & Co. |
Trimmed | 1,043,332 | $30M | 0.0% | Q2 2026 |
| Man Group Man Group plc |
Added | 921,094 | $26M | 0.0% | Q2 2026 |
| PRIMECAP Management PRIMECAP Management Co |
Added | 821,600 | $23M | 0.0% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Added | 635,988 | $18M | 0.0% | Q2 2026 |
| Paul Tudor Jones Tudor Investment Corp |
Added | 627,490 | $18M | 0.1% | Q2 2026 |
| Wallace Weitz Weitz Investment Management |
Trimmed | 423,181 | $12M | 0.8% | Q2 2026 |
| Acadian Acadian Asset Management |
Added | 243,271 | $7M | 0.0% | Q3 2026 |
| Brett Barakett Tremblant Capital Group |
Trimmed | 228,535 | $6M | 0.2% | Q2 2026 |
| Brandon Haley Holocene Advisors |
Added | 216,209 | $6M | 0.0% | Q2 2026 |
| Steve Cohen Point72 Asset Management |
New position | 130,616 | $4M | 0.0% | Q2 2026 |
| Ken Tropin Graham Capital Management |
Added | 93,689 | $3M | 0.1% | Q2 2026 |
| Fayez Sarofim Fayez Sarofim & Co |
Trimmed | 91,531 | $3M | 0.0% | Q2 2026 |
| Jeremy Grantham GMO |
New position | 24,564 | $695,652 | 0.0% | Q2 2026 |
| Alec Litowitz Magnetar Capital |
Added | 23,806 | $674,186 | 0.0% | Q2 2026 |
| Alan Howard Brevan Howard |
Added | 12,202 | $345,561 | 0.0% | Q2 2026 |
Holders by quarter
| Quarter | Superinvestors holding it |
|---|---|
| Q2 2026 | 26 |
| Q1 2026 | 28 |
| Q4 2025 | 30 |
| Q3 2025 | 33 |
| Q2 2025 | 35 |
| Q1 2025 | 31 |
| Q4 2024 | 32 |
| Q3 2024 | 27 |
Questions about CoStar
Which superinvestors own CoStar?
26 of the superinvestors we track hold CoStar (CSGP) in their latest 13F filings, $2.2B in total. Ron Baron, Chuck Akre, Baillie Gifford, Dan Davidowitz, Cliff Asness, James Robillard.
Who is the largest superinvestor holder of CSGP?
The largest holder is Ron Baron (Baron Capital (BAMCO)), with $612M, 0.9% of the portfolio.
From CoStar's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.