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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, Q3 2024

Institutional positions in Costar Group, Inc. as of Sep 30, 2024. 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
773
+13 vs. Q2 2024
Shares held
397.6M
+41.1M (+11.5%) vs. Q2 2024
Total value
$30.0B
+$3.57B (+13.5%) vs. Q2 2024
New holders
91
309 more added
Sold out
78
283 more reduced

7 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2024: 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 holdersQ3 2024: 773 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 heldQ3 2024: $30.0B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q2 2024.

Institutions holding CSGP in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
EagleClaw Capital Managment, LLC15,600$1.18M0.20%+1,500+10.6%Added
Nomura Holdings Inc15,473$1.17M0.01%−44,929−74.4%Reduced
Nebula Research & Development LLC15,472$1.17M0.14%+9,812+173.4%Added
Scientech Research LLC15,425$1.16M0.23%+15,425New
WoodTrust Financial Corp15,400$1.16M0.17%00.0%Unchanged
Krilogy Financial LLC15,275$1.15M0.08%+896+6.2%Added
Vident Advisory, LLC15,250$1.15M0.03%+7,761+103.6%Added
Conestoga Capital Advisors, LLC15,185$1.15M0.02%−405−2.6%Reduced
Quantinno Capital Management LP14,926$1.13M0.01%+6,175+70.6%Added
Redmond Asset Management, LLC14,780$1.12M0.35%−2,325−13.6%Reduced
La Banque Postale Asset Management SA14,563$1.10M0.02%+2,242+18.2%Added
Cerity Partners LLC14,553$1.10M0.00%+7,317+101.1%Added
Banco Bilbao Vizcaya Argentaria, S.A.14,100$1.06M0.01%+635+4.7%Added
Chicago Partners Investment Group LLC14,593$1.06M0.04%+781+5.7%Added
RMR Wealth Builders13,930$1.05M0.11%+42+0.3%Added
First Hawaiian Bank13,789$1.04M0.03%−2,937−17.6%Reduced
Plato Investment Management Ltd13,744$1.04M0.08%+17+0.1%Added
Investment Management Corp of Ontario13,494$1.02M0.02%+4,400+48.4%Added
Qsemble Capital Management, LP13,390$1.01M0.19%−15,375−53.5%Reduced
Vontobel Holding Ltd.13,289$1.00M0.00%+8,087+155.5%Added
Roundview Capital LLC13,255$1.00M0.07%+1,308+10.9%Added
Alps Advisors Inc13,237$998.6K0.01%−1,554−10.5%Reduced
Veriti Management LLC13,107$988.8K0.05%+2,820+27.4%Added
Northwestern Mutual Investment Management Company, LLC12,989$979.9K0.02%−60.0%Reduced
IMC-Chicago, LLC12,891$972.5K0.03%−1,332−9.4%Reduced
Ossiam12,837$968.4K0.02%+4,733+58.4%Added
Davis Capital Management12,664$955.4K0.76%+1,404+12.5%Added
Legacy Advisors, LLC12,634$953.1K0.10%−256−2.0%Reduced
Kentucky Retirement Systems Insurance Trust Fund12,134$915.4K0.06%−1,037−7.9%Reduced
Inceptionr LLC12,084$911.6K0.22%+12,084New
Regatta Capital Group, LLC11,906$898.2K0.17%+239+2.0%Added
Prelude Capital Management, LLC11,900$897.7K0.07%+11,900New
Lombard Odier Asset Management (Switzerland) SA11,741$885.7K0.07%+114+1.0%Added
Redwood Investments, LLC11,579$873.5K0.26%−733−6.0%Reduced
Tokio Marine Asset Management Co Ltd11,517$868.8K0.04%+676+6.2%Added
Stansberry Asset Management, LLC11,510$868.3K0.11%−732−6.0%Reduced
Quest Investment Management LLC11,349$856.2K0.10%−3,841−25.3%Reduced
Arrowstreet Capital, Limited Partnership11,278$850.8K0.00%+11,278New
ExodusPoint Capital Management, LP11,169$843.0K0.01%−96,252−89.6%Reduced
Gilbert & Cook, Inc.11,062$834.5K0.11%−463−4.0%Reduced
Paloma Partners Management Co11,042$833.0K0.04%−6,644−37.6%Reduced
Squarepoint Ops LLC11,034$832.4K0.00%−213,315−95.1%Reduced
Howard Capital Management Inc.10,854$818.8K0.01%+10,854New
IVC Wealth Advisors LLC10,644$803.0K0.44%−2,148−16.8%Reduced
Private Advisor Group, LLC10,058$758.7K0.00%+10+0.1%Added
Jump Financial, LLC10,001$754.5K0.02%−83,993−89.4%Reduced
Kestra Advisory Services, LLC9,925$748.8K0.00%−169−1.7%Reduced
Schonfeld Strategic Advisors LLC9,887$745.9K0.01%−150,562−93.8%Reduced
Monumental Financial Group Inc.9,689$730.9K0.27%−1,523−13.6%Reduced
Accretive Wealth Partners, LLC9,602$724.4K0.30%+113+1.2%Added
Mercer Global Advisors Inc9,485$708.2K0.00%+872+10.1%Added
Everence Capital Management Inc9,390$708.0K0.04%−2,090−18.2%Reduced
TownSquare Capital, LLC9,359$706.0K0.01%+1,040+12.5%Added
Miracle Mile Advisors, LLC9,068$684.1K0.02%+9,068New
Connable Office Inc9,000$679.0K0.07%00.0%Unchanged
Groupama Asset Managment11,028$667.9K0.02%00.0%Unchanged
Patten & Patten Inc8,839$666.8K0.04%−257−2.8%Reduced
Oarsman Capital, Inc.8,738$659.2K0.12%+353+4.2%Added
SRS Capital Advisors, Inc.8,731$658.7K0.06%−107−1.2%Reduced
Hills Bank & Trust Co8,657$653.1K0.05%00.0%Unchanged
Bleakley Financial Group, LLC8,638$651.7K0.02%+138+1.6%Added
Fifth Third Bancorp8,519$642.7K0.00%+432+5.3%Added
Altfest L J & Co Inc8,471$639.0K0.09%+2,394+39.4%Added
nVerses Capital, LLC8,400$633.7K0.29%+8,300+8,300.0%Added
Baron Wealth Management LLC8,285$625.0K0.30%−107−1.3%Reduced
CWM, LLC8,240$622.0K0.00%−1,615−16.4%Reduced
Moran Wealth Management, LLC8,027$605.6K0.02%+161+2.0%Added
David Loasby8,184$604.8K0.06%+515+6.7%Added
Emerald Advisers, LLC7,995$603.1K0.02%−199−2.4%Reduced
Seaport Global Advisors, LLC7,946$599.4K1.89%+7,946New
Empirical Finance, LLC7,881$594.5K0.03%+482+6.5%Added
Connor, Clark & Lunn Investment Management Ltd.7,842$591.6K0.00%−13,607−63.4%Reduced
Kingswood Wealth Advisors, LLC7,730$583.2K0.04%−218−2.7%Reduced
Wiley Bros.-Aintree Capital, LLC7,760$583.2K0.01%+7,760New
Mattern Capital Management, LLC7,690$580.1K0.07%+1,541+25.1%Added
First Citizens Bank & Trust Co7,689$580.1K0.01%−1,867−19.5%Reduced
Atria Wealth Solutions, Inc.7,610$574.1K0.01%−3,409−30.9%Reduced
Sherbrooke Park Advisers LLC7,567$570.9K0.13%+7,567New
Sequoia Financial Advisors, LLC7,435$560.9K0.01%+1,507+25.4%Added
Bellwether Advisors, LLC7,345$554.1K0.11%+7,345New
Verdence Capital Advisors LLC7,327$552.7K0.04%+87+1.2%Added
Ascent Group, LLC7,251$547.0K0.04%+554+8.3%Added
Vestcor Inc7,186$542.0K0.02%00.0%Unchanged
Thoroughbred Financial Services, LLC7,121$537.0K0.03%00.0%Unchanged
Intech Investment Management LLC7,073$533.6K0.01%00.0%Unchanged
American Assets Capital Advisers, LLC6,834$515.6K0.16%+6,834New
Kirtland Hills Capital Management, LLC6,803$513.2K0.28%−558−7.6%Reduced
Hengehold Capital Management LLC6,789$512.2K0.05%00.0%Unchanged
Prudential PLC6,604$498.2K0.00%00.0%Unchanged
Oxford Asset Management LLP6,584$496.7K0.41%+6,584New
Oak Thistle LLC6,559$494.8K0.16%+6,559New
Baker Tilly Wealth Management, LLC6,553$494.4K0.22%+1,420+27.7%Added
Atomi Financial Group, Inc.6,553$494.4K0.03%+6,553New
Summit Trail Advisors, LLC6,530$492.6K0.01%+3,367+106.4%Added
Ostrum Asset Management6,526$492.3K0.04%−5,216−44.4%Reduced
Quantbot Technologies LP6,481$488.9K0.02%−136,987−95.5%Reduced
Meiji Yasuda Asset Management Co Ltd.6,452$486.7K0.02%−508−7.3%Reduced
Parallel Advisors, LLC6,436$485.5K0.01%−254−3.8%Reduced
Empowered Funds, LLC6,414$483.9K0.01%+463+7.8%Added
Alaska Permanent Fund Corp6,408$483.4K0.01%00.0%Unchanged