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Costar Group, Inc.

CSGP
Exchange
Nasdaq
Industry
Services-Business Services, NEC
SEC CIK
0001057352

In the last 90 days, Costar Group, Inc. insiders filed 1 open-market purchase and 2 sales; 760 institutions reported holding it in 13F filings for Q2 2026, worth $11.7B in total; superinvestors Akre Capital Management and Weitz Investment Management hold it.

13F holders, Q2 2025

Institutional positions in Costar Group, Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
873
+26 vs. Q1 2025
Shares held
424.8M
−3.49M (−0.8%) vs. Q1 2025
Total value
$34.2B
+$258.5M (+0.8%) vs. Q1 2025
New holders
101
355 more added
Sold out
75
315 more reduced

11 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CSGP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 873 institutions
Q1 2021: 593 institutionsQ2 2021: 607 institutionsQ3 2021: 594 institutionsQ4 2021: 633 institutionsQ1 2022: 589 institutionsQ2 2022: 591 institutionsQ3 2022: 634 institutionsQ4 2022: 704 institutionsQ1 2023: 692 institutionsQ2 2023: 714 institutionsQ3 2023: 690 institutionsQ4 2023: 737 institutionsQ1 2024: 767 institutionsQ2 2024: 767 institutionsQ3 2024: 773 institutionsQ4 2024: 805 institutionsQ1 2025: 858 institutionsQ2 2025: 873 institutionsQ3 2025: 905 institutionsQ4 2025: 847 institutionsQ1 2026: 797 institutionsQ2 2026: 760 institutions
Value heldQ2 2025: $34.2B
Q1 2021: $31.2BQ2 2021: $31.1BQ3 2021: $32.3BQ4 2021: $29.6BQ1 2022: $25.2BQ2 2022: $23.0BQ3 2022: $28.0BQ4 2022: $30.4BQ1 2023: $26.7BQ2 2023: $35.5BQ3 2023: $30.1BQ4 2023: $34.4BQ1 2024: $38.4BQ2 2024: $29.3BQ3 2024: $30.0BQ4 2024: $28.9BQ1 2025: $33.9BQ2 2025: $34.2BQ3 2025: $34.9BQ4 2025: $28.4BQ1 2026: $16.8BQ2 2026: $11.7B
Institutions holding CSGP and their total value by quarter
QuarterHoldersValue
Q2 2026760$11.7B
Q1 2026797$16.8B
Q4 2025847$28.4B
Q3 2025905$34.9B
Q2 2025873$34.2B
Q1 2025858$33.9B
Q4 2024805$28.9B
Q3 2024773$30.0B
Q2 2024767$29.3B
Q1 2024767$38.4B
Q4 2023737$34.4B
Q3 2023690$30.1B
Q2 2023714$35.5B
Q1 2023692$26.7B
Q4 2022704$30.4B
Q3 2022634$28.0B
Q2 2022591$23.0B
Q1 2022589$25.2B
Q4 2021633$29.6B
Q3 2021594$32.3B
Q2 2021607$31.1B
Q1 2021593$31.2B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2025.

Institutions holding CSGP in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
City National Bank of Florida2,534$203.7K0.15%+2,534New
Simplicity Wealth,LLC2,534$203.7K0.01%+2,534New
Crestwood Advisors Group LLC2,545$204.6K0.00%−396−13.5%Reduced
Two Sigma Securities, LLC2,545$204.6K0.03%+2,545New
Aptus Capital Advisors, LLC2,553$205.3K0.00%+10.0%Added
Mather Group, LLC.2,570$206.6K0.00%+86+3.5%Added
Greenleaf Trust2,622$210.8K0.00%−1,649−38.6%Reduced
Fullcircle Wealth LLC2,195$212.5K0.08%+2,195New
Panagora Asset Management Inc2,650$213.1K0.00%−17−0.6%Reduced
Patton Fund Management, Inc.2,659$213.8K0.05%+2,659New
Entropy Technologies, LP2,661$213.9K0.02%+2,661New
Jones Financial Companies LLLP2,650$214.0K0.00%+974+58.1%Added
Assetmark, Inc2,665$214.3K0.00%+1,358+103.9%Added
First Horizon Advisors, Inc.2,676$215.2K0.01%−1,070−28.6%Reduced
Catalytic Wealth RIA, LLC2,687$216.0K0.02%+2,687New
Valeo Financial Advisors, LLC2,715$218.3K0.01%+2,715New
KCM Investment Advisors LLC2,720$218.7K0.01%00.0%Unchanged
Boothbay Fund Management, LLC2,788$224.2K0.01%+2,788New
Castleview Partners, LLC2,797$224.9K0.14%+263+10.4%Added
Premier Path Wealth Partners, LLC2,812$226.1K0.03%+2,812New
EntryPoint Capital, LLC2,831$227.6K0.11%+2,831New
OneAscent Financial Services LLC2,837$228.0K0.02%−55−1.9%Reduced
Perfromance Wealth Partners, LLC2,859$229.9K0.01%00.0%Unchanged
Tocqueville Asset Management L.P.2,883$231.8K0.00%−243−7.8%Reduced
Family Wealth Group, LLC2,920$234.8K0.18%+2,920New
Wedmont Private Capital2,806$237.1K0.01%−98−3.4%Reduced
Bridges Investment Management Inc3,000$241.2K0.00%00.0%Unchanged
Kingswood Wealth Advisors, LLC3,000$241.2K0.02%+278+10.2%Added
We Are One Seven, LLC3,006$241.7K0.01%+143+5.0%Added
Salvus Wealth Management, LLC3,007$241.8K0.14%+3,007New
Diversified Trust Co3,008$241.8K0.01%−694−18.7%Reduced
SageView Advisory Group, LLC2,597$242.5K0.01%+2,597New
CX Institutional3,134$252.0K0.01%−84−2.6%Reduced
ArrowMark Colorado Holdings LLC3,141$252.5K0.00%00.0%Unchanged
Sagespring Wealth Partners, LLC3,163$254.3K0.01%+25+0.8%Added
Fifth Third Wealth Advisors LLC3,183$255.9K0.01%+162+5.4%Added
ORG Wealth Partners, LLC3,148$257.8K0.06%+540+20.7%Added
Generali Asset Management SPA SGR3,219$258.8K0.01%−99−3.0%Reduced
Voleon Capital Management LP3,249$261.2K0.01%+3,249New
MBB Public Markets I LLC3,266$262.6K0.03%−725−18.2%Reduced
Index Fund Advisors, Inc.3,278$263.6K0.01%+3,278New
Ridgewood Investments LLC3,302$265.5K0.11%00.0%Unchanged
IHT Wealth Management, LLC3,303$265.6K0.01%−51−1.5%Reduced
Dynamic Technology Lab Private Ltd3,308$266.0K0.04%+3,308New
Cooper Financial Group3,329$267.7K0.03%+90+2.8%Added
HT Partners LLC3,343$268.8K0.08%00.0%Unchanged
Pensionmark Financial Group, LLC3,411$274.2K0.01%+3,411New
VestGen Advisors, LLC3,441$276.7K0.01%+20+0.6%Added
Golden State Wealth Management, LLC3,460$278.2K0.03%+75+2.2%Added
GTS Securities LLC3,477$279.6K0.01%+3,477New
Allworth Financial LP3,517$282.7K0.00%+1,008+40.2%Added
ICONIQ Capital, LLC3,526$283.5K0.00%+390+12.4%Added
Octavia Wealth Advisors, LLC3,629$291.8K0.03%−6,821−65.3%Reduced
Savant Capital, LLC3,637$292.4K0.00%+3,637New
PUREfi Wealth, LLC3,659$294.2K0.24%+438+13.6%Added
Meeder Advisory Services, Inc.3,739$300.6K0.02%−515−12.1%Reduced
Skopos Labs, Inc.3,754$301.8K0.04%+1,744+86.8%Added
Birch Financial Group, LLC3,792$304.9K0.24%−431−10.2%Reduced
MAI Capital Management3,817$306.9K0.00%+1,838+92.9%Added
DRW Securities, LLC3,823$307.4K0.02%+3,823New
Holocene Advisors, LP3,829$307.9K0.00%−20,742−84.4%Reduced
Keel Point, LLC3,830$307.9K0.02%+231+6.4%Added
V-Square Quantitative Management LLC3,831$308.0K0.04%−444−10.4%Reduced
Independent Advisor Alliance3,832$308.1K0.01%−226−5.6%Reduced
Advisory Services Network, LLC3,335$317.5K0.01%+111+3.4%Added
Texas Capital Bank Wealth Management Services Inc4,004$321.9K0.03%+8+0.2%Added
Vontobel Holding Ltd.4,012$322.6K0.00%−1,961−32.8%Reduced
Graypoint LLC4,019$323.1K0.02%+48+1.2%Added
Wetherby Asset Management Inc4,056$326.1K0.01%+4,056New
Strait & Sound Wealth Management LLC4,111$330.5K0.14%+205+5.2%Added
HBK Sorce Advisory LLC4,122$331.4K0.01%−319−7.2%Reduced
Cigna Investments Inc4,135$332.0K0.06%−63−1.5%Reduced
CCG Wealth Management, LLC4,171$335.3K0.18%−19−0.5%Reduced
Apriem Advisors4,208$338.3K0.04%00.0%Unchanged
Flputnam Investment Management Co4,237$340.7K0.01%+7+0.2%Added
NBC Securities, Inc.4,277$343.0K0.03%+393+10.1%Added
Oak Thistle LLC4,314$346.8K0.05%+4,314New
Apollon Wealth Management, LLC4,332$348.3K0.01%+247+6.0%Added
FineMark National Bank & Trust4,350$349.7K0.01%+1,600+58.2%Added
Pembroke Management, LTD4,357$350.3K0.04%+4,357New
Main Street Financial Solutions, LLC4,378$352.0K0.03%−8−0.2%Reduced
Three Seasons Wealth, LLC4,405$354.2K0.04%+179+4.2%Added
Pallas Capital Advisors LLC4,424$355.7K0.01%+853+23.9%Added
Parkside Financial Bank & Trust4,431$356.3K0.04%−107−2.4%Reduced
Brown Miller Wealth Management, LLC4,444$357.3K0.11%00.0%Unchanged
Plato Investment Management Ltd4,469$358.0K0.03%−3,004−40.2%Reduced
Proficio Capital Partners LLC4,529$364.1K0.02%+82+1.8%Added
Diversify Advisory Services, LLC4,132$365.5K0.01%−82−1.9%Reduced
Quantitative Investment Management, LLC4,556$366.0K0.05%+4,556New
Chatham Capital Group, Inc.4,556$366.3K0.06%−375−7.6%Reduced
NorthRock Partners, LLC4,599$369.8K0.01%−641−12.2%Reduced
Tectonic Advisors LLC4,662$374.8K0.02%+565+13.8%Added
Gotham Asset Management, LLC4,663$374.9K0.00%+4,663New
Checchi Capital Advisers, LLC4,684$376.6K0.03%+34+0.7%Added
Signaturefd, LLC4,788$385.0K0.01%−939−16.4%Reduced
One Wealth Capital Management, LLC4,790$385.1K0.18%+548+12.9%Added
Forum Financial Management, LP4,838$389.0K0.01%+755+18.5%Added
Wealth Alliance4,873$391.8K0.04%−433−8.2%Reduced
Huntington National Bank4,908$394.6K0.00%+295+6.4%Added
Beacon Pointe Advisors, LLC5,034$404.7K0.00%+652+14.9%Added