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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 2024

Institutional positions in Costar Group, Inc. as of Jun 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
767
+7 vs. Q1 2024
Shares held
395.2M
−1.98M (−0.5%) vs. Q1 2024
Total value
$29.3B
−$9.03B (−23.6%) vs. Q1 2024
New holders
99
278 more added
Sold out
92
283 more reduced

7 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2024: 767 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 2024: $29.3B
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 2024

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2024.

Institutions holding CSGP in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Siemens Fonds Invest GmbH8,511$631.0K0.05%+480+6.0%Added
Hills Bank & Trust Co8,657$641.8K0.05%−71−0.8%Reduced
First National Bank of Mount Dora, Trust Investment Services8,659$642.0K0.15%−8,173−48.6%Reduced
CTC Alternative Strategies, Ltd.8,677$643.3K0.27%+8,677New
Quantinno Capital Management LP8,751$648.8K0.01%−6,711−43.4%Reduced
SRS Capital Advisors, Inc.8,838$655.3K0.06%+679+8.3%Added
Connable Office Inc9,000$667.3K0.07%00.0%Unchanged
Investment Management Corp of Ontario9,094$674.2K0.02%+2,500+37.9%Added
Patten & Patten Inc9,096$674.4K0.05%+40+0.4%Added
D. E. Shaw & Co., Inc.9,344$692.8K0.00%−3,683−28.3%Reduced
Accretive Wealth Partners, LLC9,489$703.5K0.29%+64+0.7%Added
First Citizens Bank & Trust Co9,556$708.5K0.01%+3,174+49.7%Added
Meeder Asset Management Inc9,572$709.7K0.05%−21,463−69.2%Reduced
Virtus ETF Advisers LLC9,726$721.1K0.35%+9,726New
CWM, LLC9,855$731.0K0.00%−322−3.2%Reduced
Private Advisor Group, LLC10,048$745.0K0.00%+3,691+58.1%Added
Kestra Advisory Services, LLC10,094$748.4K0.00%−360−3.4%Reduced
RSM US Wealth Management LLC10,288$760.5K0.01%+10,288New
Veriti Management LLC10,287$762.7K0.05%+462+4.7%Added
Rockefeller Capital Management L.P.10,413$773.0K0.00%+282+2.8%Added
Wealth Enhancement Advisory Services, LLC10,589$785.1K0.00%−4,435−29.5%Reduced
Tokio Marine Asset Management Co Ltd10,841$803.8K0.04%+321+3.1%Added
Walleye Trading LLC10,880$806.6K0.02%+10,880New
Acadian Asset Management LLC11,024$816.0K0.00%+11,024New
Atria Wealth Solutions, Inc.11,019$817.0K0.01%+28+0.3%Added
Groupama Asset Managment11,028$817.6K0.02%+10,854+6,237.9%Added
Monumental Financial Group Inc.11,212$831.3K0.36%−1,335−10.6%Reduced
Davis Capital Management11,260$831.9K0.72%+574+5.4%Added
Redwood Investments, LLC12,312$844.0K0.29%−2,090−14.5%Reduced
United Services Automobile Association11,455$849.3K0.02%−847−6.9%Reduced
Gilbert & Cook, Inc.11,525$854.5K0.12%−1,576−12.0%Reduced
Lombard Odier Asset Management (Switzerland) SA11,627$862.0K0.09%+1,171+11.2%Added
Regatta Capital Group, LLC11,667$865.0K0.19%+277+2.4%Added
Ostrum Asset Management11,742$870.6K0.08%−5,496−31.9%Reduced
Roundview Capital LLC11,947$885.8K0.07%−976−7.6%Reduced
Fox Run Management, L.L.C.12,009$890.3K0.17%+12,009New
Fort Washington Investment Advisors Inc12,070$894.9K0.01%00.0%Unchanged
LGT Fund Management Co Ltd.12,118$898.4K0.11%+8,177+207.5%Added
Wolverine Trading, LLC12,204$904.8K0.01%+12,204New
Stansberry Asset Management, LLC12,242$907.6K0.12%−560−4.4%Reduced
La Banque Postale Asset Management SA12,321$913.5K0.04%+1,746+16.5%Added
BI Asset Management Fondsmaeglerselskab A/S12,334$914.0K0.01%+5,106+70.6%Added
Harvest Fund Management Co., Ltd12,361$917.0K0.07%+335+2.8%Added
IVC Wealth Advisors LLC12,792$948.4K0.53%+596+4.9%Added
Legacy Advisors, LLC12,890$955.7K0.12%+104+0.8%Added
Northwestern Mutual Investment Management Company, LLC12,995$963.4K0.02%+37+0.3%Added
Kentucky Retirement Systems Insurance Trust Fund13,171$976.5K0.07%−305−2.3%Reduced
Chicago Trust Co NA13,345$989.4K0.20%−465−3.4%Reduced
Banco Bilbao Vizcaya Argentaria, S.A.13,465$998.3K0.01%+1,070+8.6%Added
Vinva Investment Management Ltd13,575$1.01M0.05%+6,175+83.4%Added
Plato Investment Management Ltd13,727$1.02M0.09%+7,852+133.7%Added
RMR Wealth Builders13,888$1.03M0.12%00.0%Unchanged
EagleClaw Capital Managment, LLC14,100$1.05M0.19%00.0%Unchanged
Everence Capital Management Inc11,480$1.05M0.07%00.0%Unchanged
IMC-Chicago, LLC14,223$1.05M0.03%+14,223New
Krilogy Financial LLC14,379$1.07M0.08%+566+4.1%Added
Chicago Partners Investment Group LLC13,812$1.08M0.04%−2,259−14.1%Reduced
Alps Advisors Inc14,791$1.10M0.01%−421−2.8%Reduced
Candriam Luxembourg S.C.A.14,924$1.11M0.01%−677−4.3%Reduced
Quest Investment Management LLC15,190$1.13M0.12%−13−0.1%Reduced
Clark Capital Management Group, Inc.15,307$1.13M0.01%+187+1.2%Added
WoodTrust Financial Corp15,400$1.14M0.18%00.0%Unchanged
Aviva PLC15,455$1.15M0.00%−5,037−24.6%Reduced
Conestoga Capital Advisors, LLC15,590$1.16M0.02%−65−0.4%Reduced
O'Shaughnessy Asset Management, LLC15,690$1.16M0.01%+389+2.5%Added
Bokf, NA15,868$1.18M0.02%+1,698+12.0%Added
Edgestream Partners, L.P.16,080$1.19M0.06%+16,080New
Ameritas Investment Partners, Inc.16,141$1.20M0.04%−241−1.5%Reduced
First Hawaiian Bank16,726$1.24M0.04%+8,833+111.9%Added
Harbor Advisors LLC17,060$1.26M0.23%00.0%Unchanged
Redmond Asset Management, LLC17,105$1.27M0.42%−1,565−8.4%Reduced
Benjamin F. Edwards & Company, Inc.17,123$1.27M0.02%+2,224+14.9%Added
Metis Global Partners, LLC17,147$1.27M0.04%−502−2.8%Reduced
Sapient Capital LLC17,445$1.29M0.03%−172−1.0%Reduced
Procyon Private Wealth Partners, LLC17,454$1.29M0.10%+793+4.8%Added
Paloma Partners Management Co17,686$1.31M0.11%+17,686New
Norinchukin Bank, The17,744$1.32M0.04%+369+2.1%Added
Bell Bank17,998$1.33M0.11%−3,711−17.1%Reduced
Dai-Ichi Life Insurance Company, Ltd18,425$1.37M0.03%00.0%Unchanged
Markel Group Inc.SuperinvestorMarkel Group18,600$1.38M0.01%00.0%Unchanged
Toroso Investments, LLC18,669$1.38M0.02%+5,574+42.6%Added
QRG Capital Management, Inc.18,710$1.39M0.02%+2,488+15.3%Added
FIL Ltd18,790$1.39M0.00%+5,701+43.6%Added
Dynamic Technology Lab Private Ltd18,924$1.40M0.16%+18,924New
Ieq Capital, LLC19,979$1.48M0.02%−56−0.3%Reduced
B. Metzler seel. Sohn & Co. AG20,353$1.51M0.02%−2,497−10.9%Reduced
Voya Financial Advisors, Inc.20,382$1.51M0.17%+539+2.7%Added
Institute for Wealth Management, LLC.20,479$1.52M0.20%+1,260+6.6%Added
New Mexico Educational Retirement Board20,600$1.53M0.05%00.0%Unchanged
Alberta Investment Management Corp21,000$1.56M0.02%+12,100+136.0%Added
Cresset Asset Management, LLC21,015$1.56M0.01%−139−0.7%Reduced
Keybank National Association21,078$1.56M0.01%−130−0.6%Reduced
Aurora Investment Managers, LLC.21,179$1.57M1.13%−648−3.0%Reduced
Avantax Advisory Services, Inc.21,379$1.59M0.01%+19,130+850.6%Added
Connor, Clark & Lunn Investment Management Ltd.21,449$1.59M0.01%−16,738−43.8%Reduced
TD Private Client Wealth LLC21,885$1.62M0.05%−894−3.9%Reduced
Crossmark Global Holdings, Inc.22,224$1.65M0.03%−162−0.7%Reduced
AXS Investments LLC22,314$1.65M0.46%−825−3.6%Reduced
KP Management LLC22,500$1.67M0.63%−16,000−41.6%Reduced
Brinker Capital Investments, LLC22,997$1.70M0.02%−398−1.7%Reduced