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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
Kingswood Wealth Advisors, LLC7,730$583.2K0.04%−218−2.7%Reduced
Connor, Clark & Lunn Investment Management Ltd.7,842$591.6K0.00%−13,607−63.4%Reduced
Empirical Finance, LLC7,881$594.5K0.03%+482+6.5%Added
Seaport Global Advisors, LLC7,946$599.4K1.89%+7,946New
Emerald Advisers, LLC7,995$603.1K0.02%−199−2.4%Reduced
David Loasby8,184$604.8K0.06%+515+6.7%Added
Moran Wealth Management, LLC8,027$605.6K0.02%+161+2.0%Added
CWM, LLC8,240$622.0K0.00%−1,615−16.4%Reduced
Baron Wealth Management LLC8,285$625.0K0.30%−107−1.3%Reduced
nVerses Capital, LLC8,400$633.7K0.29%+8,300+8,300.0%Added
Altfest L J & Co Inc8,471$639.0K0.09%+2,394+39.4%Added
Fifth Third Bancorp8,519$642.7K0.00%+432+5.3%Added
Bleakley Financial Group, LLC8,638$651.7K0.02%+138+1.6%Added
Hills Bank & Trust Co8,657$653.1K0.05%00.0%Unchanged
SRS Capital Advisors, Inc.8,731$658.7K0.06%−107−1.2%Reduced
Oarsman Capital, Inc.8,738$659.2K0.12%+353+4.2%Added
Patten & Patten Inc8,839$666.8K0.04%−257−2.8%Reduced
Groupama Asset Managment11,028$667.9K0.02%00.0%Unchanged
Connable Office Inc9,000$679.0K0.07%00.0%Unchanged
Miracle Mile Advisors, LLC9,068$684.1K0.02%+9,068New
TownSquare Capital, LLC9,359$706.0K0.01%+1,040+12.5%Added
Everence Capital Management Inc9,390$708.0K0.04%−2,090−18.2%Reduced
Mercer Global Advisors Inc9,485$708.2K0.00%+872+10.1%Added
Accretive Wealth Partners, LLC9,602$724.4K0.30%+113+1.2%Added
Monumental Financial Group Inc.9,689$730.9K0.27%−1,523−13.6%Reduced
Schonfeld Strategic Advisors LLC9,887$745.9K0.01%−150,562−93.8%Reduced
Kestra Advisory Services, LLC9,925$748.8K0.00%−169−1.7%Reduced
Jump Financial, LLC10,001$754.5K0.02%−83,993−89.4%Reduced
Private Advisor Group, LLC10,058$758.7K0.00%+10+0.1%Added
IVC Wealth Advisors LLC10,644$803.0K0.44%−2,148−16.8%Reduced
Howard Capital Management Inc.10,854$818.8K0.01%+10,854New
Squarepoint Ops LLC11,034$832.4K0.00%−213,315−95.1%Reduced
Paloma Partners Management Co11,042$833.0K0.04%−6,644−37.6%Reduced
Gilbert & Cook, Inc.11,062$834.5K0.11%−463−4.0%Reduced
ExodusPoint Capital Management, LP11,169$843.0K0.01%−96,252−89.6%Reduced
Arrowstreet Capital, Limited Partnership11,278$850.8K0.00%+11,278New
Quest Investment Management LLC11,349$856.2K0.10%−3,841−25.3%Reduced
Stansberry Asset Management, LLC11,510$868.3K0.11%−732−6.0%Reduced
Tokio Marine Asset Management Co Ltd11,517$868.8K0.04%+676+6.2%Added
Redwood Investments, LLC11,579$873.5K0.26%−733−6.0%Reduced
Lombard Odier Asset Management (Switzerland) SA11,741$885.7K0.07%+114+1.0%Added
Prelude Capital Management, LLC11,900$897.7K0.07%+11,900New
Regatta Capital Group, LLC11,906$898.2K0.17%+239+2.0%Added
Inceptionr LLC12,084$911.6K0.22%+12,084New
Kentucky Retirement Systems Insurance Trust Fund12,134$915.4K0.06%−1,037−7.9%Reduced
Legacy Advisors, LLC12,634$953.1K0.10%−256−2.0%Reduced
Davis Capital Management12,664$955.4K0.76%+1,404+12.5%Added
Ossiam12,837$968.4K0.02%+4,733+58.4%Added
IMC-Chicago, LLC12,891$972.5K0.03%−1,332−9.4%Reduced
Northwestern Mutual Investment Management Company, LLC12,989$979.9K0.02%−60.0%Reduced
Veriti Management LLC13,107$988.8K0.05%+2,820+27.4%Added
Alps Advisors Inc13,237$998.6K0.01%−1,554−10.5%Reduced
Roundview Capital LLC13,255$1.00M0.07%+1,308+10.9%Added
Vontobel Holding Ltd.13,289$1.00M0.00%+8,087+155.5%Added
Qsemble Capital Management, LP13,390$1.01M0.19%−15,375−53.5%Reduced
Investment Management Corp of Ontario13,494$1.02M0.02%+4,400+48.4%Added
Plato Investment Management Ltd13,744$1.04M0.08%+17+0.1%Added
First Hawaiian Bank13,789$1.04M0.03%−2,937−17.6%Reduced
RMR Wealth Builders13,930$1.05M0.11%+42+0.3%Added
Chicago Partners Investment Group LLC14,593$1.06M0.04%+781+5.7%Added
Banco Bilbao Vizcaya Argentaria, S.A.14,100$1.06M0.01%+635+4.7%Added
Cerity Partners LLC14,553$1.10M0.00%+7,317+101.1%Added
La Banque Postale Asset Management SA14,563$1.10M0.02%+2,242+18.2%Added
Redmond Asset Management, LLC14,780$1.12M0.35%−2,325−13.6%Reduced
Quantinno Capital Management LP14,926$1.13M0.01%+6,175+70.6%Added
Conestoga Capital Advisors, LLC15,185$1.15M0.02%−405−2.6%Reduced
Vident Advisory, LLC15,250$1.15M0.03%+7,761+103.6%Added
Krilogy Financial LLC15,275$1.15M0.08%+896+6.2%Added
WoodTrust Financial Corp15,400$1.16M0.17%00.0%Unchanged
Scientech Research LLC15,425$1.16M0.23%+15,425New
Nebula Research & Development LLC15,472$1.17M0.14%+9,812+173.4%Added
Nomura Holdings Inc15,473$1.17M0.01%−44,929−74.4%Reduced
EagleClaw Capital Managment, LLC15,600$1.18M0.20%+1,500+10.6%Added
Aviva PLC15,679$1.18M0.00%+224+1.4%Added
Bokf, NA16,288$1.20M0.02%+420+2.6%Added
FORA Capital, LLC16,419$1.24M0.15%+16,419New
Ameritas Investment Partners, Inc.16,629$1.25M0.04%+488+3.0%Added
Candriam Luxembourg S.C.A.16,764$1.26M0.01%+1,840+12.3%Added
O'Shaughnessy Asset Management, LLC16,532$1.28M0.01%+842+5.4%Added
Wealth Enhancement Advisory Services, LLC16,975$1.28M0.00%+6,386+60.3%Added
Chicago Trust Co NA17,235$1.30M0.22%+3,890+29.1%Added
LGT Fund Management Co Ltd.17,652$1.33M0.14%+5,534+45.7%Added
BI Asset Management Fondsmaeglerselskab A/S17,739$1.34M0.02%+5,405+43.8%Added
Metis Global Partners, LLC18,008$1.36M0.04%+861+5.0%Added
RSM US Wealth Management LLC18,200$1.36M0.02%+7,912+76.9%Added
Trexquant Investment LP18,164$1.37M0.02%−55,756−75.4%Reduced
Bell Bank18,232$1.38M0.16%+234+1.3%Added
Dai-Ichi Life Insurance Company, Ltd18,425$1.39M0.04%00.0%Unchanged
Markel Group Inc.SuperinvestorMarkel Group18,600$1.40M0.01%00.0%Unchanged
Harvest Fund Management Co., Ltd18,878$1.42M0.08%+6,517+52.7%Added
Voya Financial Advisors, Inc.19,229$1.44M0.16%−1,153−5.7%Reduced
Dynamic Technology Lab Private Ltd19,133$1.44M0.15%+209+1.1%Added
Brinker Capital Investments, LLC19,137$1.44M0.01%−3,860−16.8%Reduced
Orion Portfolio Solutions, LLC19,137$1.44M0.01%−3,860−16.8%Reduced
Procyon Private Wealth Partners, LLC19,180$1.45M0.10%+1,726+9.9%Added
Y-Intercept (Hong Kong) Ltd19,518$1.47M0.09%−87,914−81.8%Reduced
B. Metzler seel. Sohn & Co. AG19,888$1.50M0.01%−465−2.3%Reduced
B. Metzler seel. Sohn & Co. Holding AG19,888$1.50M0.01%+19,888New
Ieq Capital, LLC19,928$1.50M0.02%−51−0.3%Reduced
New Mexico Educational Retirement Board20,000$1.51M0.05%−600−2.9%Reduced