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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
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management886,500$65.7M3.45%+10,000+1.1%Added
HSBC Holdings PLC890,347$66.0M0.04%+227,509+34.3%Added
Chicago Capital, LLC912,184$67.6M2.01%−486−0.1%Reduced
Pictet Asset Management Holding SA942,097$69.8M0.08%+18,611+2.0%Added
BNP Paribas Arbitrage, SA943,140$69.9M0.08%+177,647+23.2%Added
Sumitomo Mitsui Trust Holdings, Inc.950,259$70.5M0.05%−85,416−8.2%Reduced
Kayne Anderson Rudnick Investment Management LLC976,643$72.4M0.18%−41,400−4.1%Reduced
Beck Mack & Oliver LLC1,003,436$74.4M1.54%+135,494+15.6%Added
National Pension Service1,014,117$75.2M0.09%+42,454+4.4%Added
William Blair Investment Management, LLC1,053,274$78.1M0.20%−389,954−27.0%Reduced
Ensign Peak Advisors, Inc1,059,525$78.6M0.14%−359,406−25.3%Reduced
American Century Companies Inc1,100,521$81.6M0.05%−912,955−45.3%Reduced
Deutsche Bank AG1,163,835$86.3M0.04%+287,566+32.8%Added
Barclays PLC1,175,395$87.1M0.04%+21,439+1.9%Added
Wells Fargo & Company1,201,659$89.1M0.02%+194,948+19.4%Added
Swiss National Bank1,209,200$89.7M0.06%−13,700−1.1%Reduced
Eagle Asset Management Inc1,219,223$90.1M0.48%+175,972+16.9%Added
SEI Investments Co1,233,592$91.5M0.13%+27,656+2.3%Added
Baird Financial Group, Inc.1,242,203$92.1M0.19%+103,662+9.1%Added
Nuveen Asset Management, LLC1,294,673$96.0M0.03%+148,876+13.0%Added
JPMorgan Chase & Co1,357,154$100.6M0.01%−603,687−30.8%Reduced
Voya Investment Management LLC1,371,099$101.7M0.10%−414,623−23.2%Reduced
Bares Capital Management, Inc.1,382,835$102.5M4.93%−195,900−12.4%Reduced
Fayez Sarofim & Co1,407,801$104.4M0.28%+1,407,801New
Price T Rowe Associates Inc1,444,551$107.1M0.01%−122,648−7.8%Reduced
Harding Loevner LP1,551,127$115.0M0.63%−50,064−3.1%Reduced
RGM Capital, LLC1,598,078$118.5M4.75%00.0%Unchanged
FMR LLC1,606,496$119.1M0.01%+509,125+46.4%Added
Dimensional Fund Advisors LP1,697,933$125.9M0.03%+219,758+14.9%Added
Westfield Capital Management Co LP1,719,913$127.5M0.63%+72,524+4.4%Added
Envestnet Asset Management Inc1,721,312$127.6M0.04%−2,626−0.2%Reduced
Ownership Capital B.V.1,751,764$129.9M3.51%−633,400−26.6%Reduced
DF Dent & Co Inc1,882,633$139.6M1.80%−64,969−3.3%Reduced
Riverbridge Partners LLC1,927,442$142.9M1.94%−54,633−2.8%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,950,417$144.6M0.37%+9,907+0.5%Added
Federated Hermes, Inc.1,968,574$146.0M0.35%−26,542−1.3%Reduced
UBS Asset Management Americas Inc2,086,256$154.7M0.04%+576,608+38.2%Added
Legal & General Group Plc2,294,708$170.1M0.05%+23,439+1.0%Added
Mackenzie Financial Corp2,358,526$174.9M0.26%+341,046+16.9%Added
Goldman Sachs Group Inc2,441,966$181.0M0.04%−648,322−21.0%Reduced
Franklin Resources Inc2,565,900$190.2M0.06%+52,408+2.1%Added
Charles Schwab Investment Management Inc2,607,457$193.3M0.04%+65,823+2.6%Added
Capital Research Global Investors2,653,416$196.7M0.04%+6420.0%Added
Ameriprise Financial Inc2,672,024$198.1M0.05%−371,906−12.2%Reduced
Invesco Ltd.3,451,930$255.9M0.05%+392,134+12.8%Added
Northern Trust Corp3,527,149$261.5M0.04%−9,878−0.3%Reduced
Morgan Stanley3,558,068$263.8M0.02%−466,393−11.6%Reduced
T. Rowe Price Investment Management, Inc.3,693,250$273.8M0.17%+64,953+1.8%Added
Brown Advisory Inc3,900,174$289.2M0.38%+187,716+5.1%Added
Capital International Investors3,995,630$296.2M0.06%−42,341−1.0%Reduced
Vulcan Value Partners, LLC4,138,987$306.8M4.68%+1,961,917+90.1%Added
Blair William & Co4,397,738$326.0M1.01%−22,040−0.5%Reduced
Bank of America Corp4,769,720$353.6M0.03%+432,358+10.0%Added
Norges Bank5,096,624$377.9M0.06%+201,012+4.1%Added
Artisan Partners Limited Partnership5,804,147$430.3M0.65%+101,127+1.8%Added
Bank of New York Mellon Corp6,117,260$453.5M0.09%+124,761+2.1%Added
Macquarie Group Ltd8,449,865$626.5M0.72%−36,286−0.4%Reduced
Akre Capital Management LLCSuperinvestorAkre Capital Management8,770,423$650.2M5.72%+1,508,797+20.8%Added
Baillie Gifford & Co9,051,781$671.1M0.52%−201,972−2.2%Reduced
Geode Capital Management, LLC11,072,579$819.0M0.07%+230,768+2.1%Added
Massachusetts Financial Services Co11,384,572$844.1M0.26%−118,347−1.0%Reduced
Janus Henderson Group PLC12,114,530$898.2M0.48%+306,503+2.6%Added
State Street Corp16,337,591$1.21B0.05%+211,417+1.3%Added
Bamco Inc19,270,998$1.43B4.09%−66,620−0.3%Reduced
Principal Financial Group Inc19,370,975$1.44B0.85%−221,206−1.1%Reduced
BlackRock Inc.38,561,085$2.86B0.06%−325,365−0.8%Reduced
Vanguard Group Inc65,617,338$4.86B0.09%+165,839+0.3%Added
Psagot Value Holdings Ltd. / (Israel)0$00.00%−30−100.0%Sold out
Farallon Capital Management, L.L.C.0$00.00%−2,594,356−100.0%Sold out
Rathbone Brothers plc0$00.00%−835,591−100.0%Sold out
Pelham Capital Ltd.0$00.00%−200,377−100.0%Sold out
Falcon Edge Capital, LP0$00.00%−175,183−100.0%Sold out
CIBC World Markets Inc.0$00.00%−175,135−100.0%Sold out
Gillson Capital LP0$00.00%−170,001−100.0%Sold out
American International Group, Inc.0$00.00%−155,585−100.0%Sold out
Stony Point Capital LLC0$00.00%−149,160−100.0%Sold out
Generate Investment Management Ltd0$00.00%−89,133−100.0%Sold out
Texas Permanent School Fund0$00.00%−84,433−100.0%Sold out
12 West Capital Management LP0$00.00%−65,000−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−62,200−100.0%Sold out
Holocene Advisors, LP0$00.00%−61,516−100.0%Sold out
Nishkama Capital, LLC0$00.00%−42,000−100.0%Sold out
Skye Global Management LP0$00.00%−31,500−100.0%Sold out
DoubleLine ETF Adviser LP0$00.00%−31,154−100.0%Sold out
Quantitative Investment Management, LLC0$00.00%−22,766−100.0%Sold out
Aperture Investors, LLC0$00.00%−18,946−100.0%Sold out
Los Angeles Capital Management LLC0$00.00%−17,797−100.0%Sold out
Metropolitan Life Insurance Co0$00.00%−16,469−100.0%Sold out
LMCG Investments, LLC0$00.00%−13,916−100.0%Sold out
Marshall Wace, LLP0$00.00%−13,612−100.0%Sold out
Bellwether Advisors, LLC0$00.00%−11,494−100.0%Sold out
Hohimer Wealth Management, LLC0$00.00%−11,111−100.0%Sold out
Maven Securities LTD0$00.00%−10,857−100.0%Sold out
USA Financial Portformulas Corp0$00.00%−10,788−100.0%Sold out
Center Lake Capital Management, LLC0$00.00%−10,000−100.0%Sold out
Capital Management Associates0$00.00%−8,500−100.0%Sold out
FDx Advisors, Inc.0$00.00%−7,464−100.0%Sold out
Marsico Capital Management LLC0$00.00%−7,375−100.0%Sold out
Lockheed Martin Investment Management Co0$00.00%−8,571−100.0%Sold out
Nicholas Investment Partners, LP0$00.00%−5,770−100.0%Sold out