CSGPCoStar Group

$29.68-67% 1Y

Who owns CSGP

742 institutions reported holding CSGP for 2026Q2, together 100% of the company, fewer than the 777 a quarter earlier.

742

Institutions reporting a position · as of 2026Q2 · down from 777 the quarter before

Shares held by institutions
413.7M

Shares held by institutions · 100% of the company · long US equity positions only, as reported on Form 13F

Reported value
$12.3B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
38%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
112
Positions exited
150
Added to
279
Reduced
252
Top 10 holdersof the company
52%
Shares sold shortsettled Sep 15, 2026
14.8M
Short interestof shares outstanding
3.6%
Days to coverat the average daily volume
2.7
Change in the short positionsince the Aug 31, 2026 count
−21%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2742413.7M$12.3B
2026Q1777407.6M$16.5B
2025Q4830416.3M$28.0B
2025Q3885412.6M$34.8B
2025Q2856423.9M$34.1B
2025Q1841428.1M$33.9B
2024Q4788402.8M$28.8B
2024Q3759397.1M$30.0B
2024Q2753394.4M$29.2B
2024Q1753398.1M$38.4B
2023Q4726393.7M$34.4B
2023Q3680391.5M$30.1B
2023Q2706398.6M$35.5B
2023Q1683388.4M$26.8B
2022Q4695393.5M$30.4B
2022Q3628402.0M$28.0B
Largest reported holders, 2026Q2
HolderShares% of companyValue
VANGUARD GROUP INC68.8M17%$1.95B
BlackRock Inc.33.8M8.2%$958M
BAMCO INC /NY/21.6M5.2%$612M
STATE STREET CORP18.4M4.4%$521M
Capital International Investors16.6M4.0%$471M
BAILLIE GIFFORD & CO13.2M3.2%$373M
GEODE CAPITAL MANAGEMENT LLC12.2M2.9%$343M
AKRE CAPITAL MANAGEMENT LLC11.7M2.8%$331M
POLEN CAPITAL MANAGEMENT LLC8.8M2.1%$248M
AQR CAPITAL MANAGEMENT LLC8.4M2.0%$239M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202614.8M3.6%2.7
Aug 31, 202618.9M4.6%2.5
Aug 14, 202616.7M4.0%2.8
Jul 31, 202616.3M3.9%1.9
Jul 15, 202616.3M3.9%2.5
Jun 30, 202615.3M3.7%1.9
Jun 15, 202617.1M4.1%2.4
May 29, 202615.1M3.6%2.4
May 15, 202618.6M4.5%1.9
Apr 30, 202617.6M4.2%2.8
Apr 15, 202616.6M4.0%2.6
Mar 31, 202622.0M5.3%3.3

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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