Institutional Ownership
Costar Group Inc
CUSIP 22160N109COMCSGPQ1 2026
Institutional Holders
779
13F filers
Shares Held
336.89M
Aggregate institutional
Institutional Value
$13.27B
Q1 2026
Net New Holders
-50
113 new · 163 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions113
Increased305
Decreased271
Sold out163
Institutional Holders
779 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Blackrock, Inc. | 33.81M | $1.36B | −162.4K | Reduced |
| 2 | State Street Corp | 18.65M | $752.38M | +18.6K | Added |
| 3 | Principal Financial Group Inc | 17.70M | $713.87M | +130.1K | Added |
| 4 | Bamco Inc /Ny/ | 16.31M | $658.11M | −3.18M | Reduced |
| 5 | Capital International Investors | 15.51M | $625.82M | +4.67M | Added |
| 6 | Baillie Gifford & Co | 13.61M | $549.06M | +677.7K | Added |
| 7 | Polen Capital Management LLC | 12.57M | $507.09M | +7.68M | Added |
| 8 | Geode Capital Management, LLC | 12.45M | $500.45M | +266.5K | Added |
| 9 | Akre Capital Management LLC | 10.35M | $417.45M | +730.5K | Added |
| 10 | Goldman Sachs Group Inc | 9.25M | $372.98M | +5.49M | Added |
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