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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
Citadel Advisors LLC466,697$34.6M0.03%−23,220−4.7%Reduced
Clearbridge Investments, LLC449,910$33.4M0.03%−72,167−13.8%Reduced
NZS Capital, LLC445,795$33.1M1.36%+10,065+2.3%Added
Ycg, LLC445,209$33.0M2.69%+920+0.2%Added
State Board of Administration of Florida Retirement System428,844$31.8M0.06%−48,847−10.2%Reduced
ProShare Advisors LLC425,065$31.5M0.08%−41,497−8.9%Reduced
Granahan Investment Management Inc423,426$31.4M1.26%−187,572−30.7%Reduced
Geneva Capital Management LLC409,138$30.3M0.55%+11,657+2.9%Added
Vantage Investment Partners, LLC404,889$30.0M2.72%−4,880−1.2%Reduced
Royal London Asset Management Ltd385,887$28.6M0.07%−41,136−9.6%Reduced
New York State Common Retirement Fund378,945$28.1M0.04%−13,690−3.5%Reduced
First Trust Advisors LP378,156$28.0M0.03%+116,610+44.6%Added
Assenagon Asset Management S.A.369,291$27.4M0.07%+263,234+248.2%Added
Allspring Global Investments Holdings, LLC359,441$26.6M0.04%−50,053−12.2%Reduced
Great West Life Assurance Co353,847$26.3M0.05%+48,316+15.8%Added
New York State Teachers Retirement System350,231$26.0M0.05%−9,585−2.7%Reduced
Telemark Asset Management, LLC350,000$25.9M2.34%+100,000+40.0%Added
Natixis Advisors, L.P.349,855$25.9M0.06%−128,192−26.8%Reduced
Parnassus Investments348,207$25.8M0.06%00.0%Unchanged
Bridgewater Associates, LP342,019$25.4M0.13%+136,014+66.0%Added
Mirae Asset Global ETFs Holdings Ltd.327,430$24.3M0.06%+327,430New
Ashford Capital Management Inc320,788$23.8M3.21%−622−0.2%Reduced
Millennium Management LLC315,582$23.4M0.02%+285,278+941.4%Added
Robeco Institutional Asset Management B.V.306,470$22.7M0.05%+263,193+608.2%Added
Motley Fool Wealth Management, LLC307,970$22.7M1.16%−6,490−2.1%Reduced
Russell Investments Group, Ltd.288,042$21.4M0.03%−113,272−28.2%Reduced
Tudor Investment Corp Et Al286,836$21.3M0.24%+286,836New
Kornitzer Capital Management Inc286,326$21.2M0.40%+250+0.1%Added
Fred Alger Management, LLC285,245$21.1M0.10%−64,339−18.4%Reduced
Manufacturers Life Insurance Company, The281,301$20.9M0.02%−4,900−1.7%Reduced
Baskin Financial Services Inc.280,680$20.8M1.78%+22,538+8.7%Added
Adage Capital Partners GP, L.L.C.278,700$20.7M0.04%−121,800−30.4%Reduced
Stifel Financial Corp270,930$20.1M0.02%+15,377+6.0%Added
Ninety One UK Ltd270,194$20.0M0.06%−14,946−5.2%Reduced
Prudential Financial Inc262,437$19.5M0.03%−32,226−10.9%Reduced
Truist Financial Corp256,212$19.0M0.03%−9,863−3.7%Reduced
Asset Management One Co.,Ltd.250,526$18.6M0.07%−3,571−1.4%Reduced
DekaBank Deutsche Girozentrale243,423$18.0M0.03%+146,658+151.6%Added
Sandhill Capital Partners LLC241,144$17.9M1.37%−2,594−1.1%Reduced
State of Wisconsin Investment Board235,485$17.5M0.05%+3,212+1.4%Added
Voloridge Investment Management, LLC232,495$17.2M0.06%+232,495New
Engineers Gate Manager LP230,279$17.1M0.39%+230,279New
Rafferty Asset Management, LLC224,396$16.6M0.06%+44,633+24.8%Added
Squarepoint Ops LLC224,349$16.6M0.06%+213,274+1,925.7%Added
Chevy Chase Trust Holdings, Inc.222,933$16.5M0.05%−3,180−1.4%Reduced
Long Pond Capital, LP222,500$16.5M0.89%+222,500New
STRS Ohio210,000$15.6M0.06%−320,000−60.4%Reduced
Thrivent Financial for Lutherans206,603$15.3M0.03%−23,622−10.3%Reduced
Toronto Dominion Bank204,990$15.2M0.02%+79,582+63.5%Added
Prana Capital Management, LP200,643$14.9M0.71%+43,975+28.1%Added
Erste Asset Management GmbH195,000$14.5M0.19%+15,000+8.3%Added
Man Group plc191,289$14.2M0.04%+165,146+631.7%Added
ING Groep NV190,990$14.2M0.08%−252,732−57.0%Reduced
Public Employees Retirement System of Ohio190,286$14.1M0.06%+1,533+0.8%Added
Jane Street Group, LLC187,401$13.9M0.02%+108,234+136.7%Added
Archon Partners LLC185,500$13.8M1.77%00.0%Unchanged
Cubist Systematic Strategies, LLC185,141$13.7M0.24%+185,141New
Badgley Phelps Wealth Managers, LLC183,386$13.6M0.34%−3,386−1.8%Reduced
Treasurer of the State of North Carolina180,109$13.4M0.06%−5,575−3.0%Reduced
NS Partners Ltd178,581$13.2M0.60%+700+0.4%Added
Danske Bank A/S173,942$12.9M0.05%−14,489−7.7%Reduced
Korea Investment CORP165,151$12.2M0.03%−55,185−25.0%Reduced
Northwestern Mutual Wealth Management Co165,066$12.2M0.01%+16,084+10.8%Added
Zurcher Kantonalbank (Zurich Cantonalbank)163,689$12.1M0.04%+32,056+24.4%Added
Gilder Gagnon Howe & Co LLC163,520$12.1M0.15%+21,156+14.9%Added
National Bank of Canada163,103$12.1M0.02%−37,828−18.8%Reduced
Schonfeld Strategic Advisors LLC160,449$11.9M0.09%+96,819+152.2%Added
Oppenheimer Asset Management Inc.160,335$11.9M0.15%+9,829+6.5%Added
Teachers Retirement System of the State of Kentucky157,419$11.7M0.10%−896−0.6%Reduced
State of New Jersey Common Pension Fund D150,739$11.2M0.05%−81,402−35.1%Reduced
Cetera Investment Advisers149,961$11.1M0.03%−242−0.2%Reduced
Corebridge Financial, Inc.149,944$11.1M0.06%+149,944New
Two Sigma Investments, LP147,295$10.9M0.03%+147,295New
Quantbot Technologies LP143,468$10.6M0.51%+143,468New
LGT Group Foundation143,147$10.6M0.17%+18,418+14.8%Added
Pragma Gestao de Patrimonio Ltd143,000$10.6M5.63%00.0%Unchanged
Qube Research & Technologies Ltd142,604$10.6M0.02%+120,081+533.1%Added
Susquehanna International Group, LLP139,278$10.3M0.02%+45,024+47.8%Added
HRT Financial LP138,149$10.2M0.06%+138,149New
Kelly Lawrence W & Associates Inc137,516$10.2M2.32%+573+0.4%Added
Comerica Bank135,524$10.0M0.04%+6,236+4.8%Added
Scout Investments, Inc.132,537$9.83M0.26%−15,214−10.3%Reduced
Mediolanum International Funds Ltd140,971$9.77M0.16%+68,415+94.3%Added
Storebrand Asset Management AS129,205$9.58M0.03%+4,947+4.0%Added
Foster Victor Wealth Advisors, LLC123,954$9.54M0.80%+23,512+23.4%Added
Nomura Asset Management Co Ltd126,713$9.39M0.03%+4,024+3.3%Added
Walleye Capital LLC124,321$9.22M0.10%−21,114−14.5%Reduced
Resona Asset Management Co.,Ltd.123,949$9.19M0.06%−8,136−6.2%Reduced
Azimuth Capital Investment Management LLC123,778$9.18M0.37%+45,263+57.6%Added
Nicholas Company, Inc.122,625$9.09M0.15%+122,625New
State of Michigan Retirement System120,800$8.96M0.05%+1,300+1.1%Added
CIBC Asset Management Inc119,787$8.88M0.03%−682−0.6%Reduced
State of Tennessee, Treasury Department118,993$8.82M0.03%−8,193−6.4%Reduced
2Xideas AG118,987$8.82M1.10%+3,954+3.4%Added
Aquatic Capital Management LLC117,600$8.72M0.32%+117,600New
Mirae Asset Global Investments Co., Ltd.116,200$8.63M0.04%−309,149−72.7%Reduced
Guggenheim Capital LLC114,521$8.49M0.06%−8,377−6.8%Reduced
LPL Financial LLC113,093$8.38M0.00%+12,621+12.6%Added
Arizona State Retirement System112,190$8.32M0.06%−130−0.1%Reduced
Handelsbanken Fonder AB111,282$8.25M0.04%+3,017+2.8%Added