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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 2023

Institutional positions in Costar Group, Inc. as of Jun 30, 2023. 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
714
+22 vs. Q1 2023
Shares held
399.0M
+10.1M (+2.6%) vs. Q1 2023
Total value
$35.5B
+$8.71B (+32.6%) vs. Q1 2023
New holders
91
265 more added
Sold out
69
250 more reduced

Compare with Q1 2023: 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 2023: 714 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 2023: $35.5B
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 2023

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q1 2023.

Institutions holding CSGP in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Vantage Investment Partners, LLC78,382$6.98M0.90%+78,382New
Cetera Advisor Networks LLC78,404$6.98M0.05%+896+1.2%Added
Public Sector Pension Investment Board78,421$6.98M0.05%+33,788+75.7%Added
IFM Investors Pty Ltd79,079$7.04M0.09%+3,739+5.0%Added
Skandinaviska Enskilda Banken AB (publ)79,519$7.08M0.05%+8,515+12.0%Added
Federation des caisses Desjardins du Quebec81,150$7.22M0.07%+36,473+81.6%Added
CIBC World Markets Corp82,096$7.31M0.06%−75,568−47.9%Reduced
Regions Financial Corp84,071$7.48M0.06%+17,765+26.8%Added
Texas Permanent School Fund85,688$7.63M0.07%+900+1.1%Added
The PNC Financial Services Group, Inc.85,899$7.65M0.01%+3,691+4.5%Added
Los Angeles Capital Management LLC87,511$7.79M0.03%+34,989+66.6%Added
MML Investors Services, LLC87,644$7.80M0.04%+4,497+5.4%Added
Azzad Asset Management Inc88,583$7.88M1.06%+405+0.5%Added
Foster Victor Wealth Advisors, LLC89,296$7.91M0.88%+4,605+5.4%Added
US Bancorp91,728$8.16M0.01%−805−0.9%Reduced
Retirement Systems of Alabama92,852$8.26M0.04%−27,353−22.8%Reduced
Ground Swell Capital, LLC93,071$8.28M20.30%+93,071New
Tredje AP-fonden93,711$8.34M0.12%−12,817−12.0%Reduced
Night Owl Capital Management, LLC94,589$8.42M2.18%−2,254−2.3%Reduced
Guggenheim Capital LLC95,900$8.54M0.07%+10,472+12.3%Added
Azimuth Capital Investment Management LLC95,987$8.54M0.41%−96,458−50.1%Reduced
Jefferies Financial Group Inc.96,541$8.59M0.18%+96,541New
Flossbach Von Storch AG96,578$8.60M0.03%−7,588−7.3%Reduced
KBC Group NV97,170$8.65M0.04%−50,700−34.3%Reduced
Thematics Asset Management99,888$8.89M0.43%−3,024−2.9%Reduced
Telemark Asset Management, LLC100,000$8.90M1.21%+100,000New
CIBC Asset Management Inc102,067$9.08M0.04%−558−0.5%Reduced
Standard Life Aberdeen plc102,750$9.14M0.02%−1,190−1.1%Reduced
State of Tennessee, Treasury Department102,895$9.16M0.04%+41,776+68.4%Added
Amalgamated Bank106,955$9.52M0.08%+112+0.1%Added
Shell Asset Management Co107,129$9.53M0.38%−40,209−27.3%Reduced
MetLife Investment Management110,845$9.87M0.07%+3,666+3.4%Added
Arizona State Retirement System111,012$9.88M0.08%−7,224−6.1%Reduced
Advisor Group Holdings, Inc.111,315$9.91M0.02%+788+0.7%Added
Nomura Asset Management Co Ltd111,947$9.96M0.05%−4,028−3.5%Reduced
State of Michigan Retirement System112,300$9.99M0.06%+600+0.5%Added
State of Alaska, Department of Revenue113,541$10.1M0.12%−64,185−36.1%Reduced
Storebrand Asset Management AS116,879$10.4M0.05%+17,608+17.7%Added
Gillson Capital LP119,342$10.6M0.94%+119,342New
Boston Private Wealth LLC123,544$11.0M0.20%−35,692−22.4%Reduced
Rafferty Asset Management, LLC128,370$11.4M0.06%+23,984+23.0%Added
Sumitomo Mitsui DS Asset Management Company, Ltd134,116$11.9M0.18%+25,276+23.2%Added
Gateway Investment Advisers LLC134,947$12.0M0.14%−340−0.3%Reduced
Northwestern Mutual Wealth Management Co138,162$12.3M0.02%+3,579+2.7%Added
Lakehouse Capital Pty Ltd138,189$12.3M10.58%00.0%Unchanged
Tower Research Capital LLC (TRC)143,858$12.8M0.43%+95,535+197.7%Added
SG Americas Securities, LLC145,122$12.9M0.11%+120,190+482.1%Added
American International Group, Inc.152,897$13.6M0.08%+3,267+2.2%Added
Cobblestone Capital Advisors LLC158,106$14.1M0.99%+966+0.6%Added
Swedbank AB161,046$14.3M0.03%+80.0%Added
2Xideas AG169,578$15.1M1.44%+32,693+23.9%Added
Badgley Phelps Wealth Managers, LLC175,271$15.6M0.52%−1,250−0.7%Reduced
NS Partners Ltd175,785$15.6M0.82%−1,629−0.9%Reduced
Handelsbanken Fonder AB176,257$15.7M0.08%+8,646+5.2%Added
Treasurer of the State of North Carolina182,084$16.2M0.08%+600.0%Added
Stony Point Capital LLC184,207$16.4M5.32%+184,207New
Archon Partners LLC185,500$16.5M2.47%00.0%Unchanged
AE Wealth Management LLC185,759$16.5M0.10%+4,066+2.2%Added
National Bank of Canada189,883$16.6M0.03%+158,838+511.6%Added
Oppenheimer Asset Management Inc.189,152$16.8M0.25%−6,076−3.1%Reduced
Erste Asset Management GmbH195,000$17.4M0.31%+20,000+11.4%Added
AQR Capital Management LLC196,353$17.5M0.04%+31,960+19.4%Added
ExodusPoint Capital Management, LP201,817$18.0M0.21%+77,860+62.8%Added
Ninety One UK Ltd202,491$18.0M0.05%−2,052−1.0%Reduced
Susquehanna International Group, LLP207,039$18.4M0.03%−20,781−9.1%Reduced
Teachers Retirement System of the State of Kentucky209,762$18.7M0.18%00.0%Unchanged
Scout Investments, Inc.223,441$18.9M0.38%−19,430−8.0%Reduced
Voya Investment Management LLC215,324$19.2M0.02%+42,855+24.8%Added
Neuberger Berman Group LLC216,741$19.3M0.02%+778+0.4%Added
Stifel Financial Corp217,250$19.3M0.03%−6,536−2.9%Reduced
Public Employees Retirement System of Ohio217,909$19.4M0.08%−13,922−6.0%Reduced
BNP Paribas Arbitrage, SA227,188$20.2M0.04%+70,195+44.7%Added
Intrinsic Edge Capital Management LLC228,216$20.3M1.58%−54,155−19.2%Reduced
Chevy Chase Trust Holdings, Inc.235,024$20.9M0.08%−1,312−0.6%Reduced
State of Wisconsin Investment Board237,841$21.2M0.06%+22,155+10.3%Added
Motley Fool Wealth Management, LLC238,711$21.2M1.25%−4,461−1.8%Reduced
State of New Jersey Common Pension Fund D240,261$21.4M0.07%00.0%Unchanged
Baskin Financial Services Inc.248,536$22.1M2.12%−1020.0%Reduced
Citadel Advisors LLC250,843$22.3M0.02%+238,495+1,931.4%Added
Toronto Dominion Bank254,284$22.6M0.03%+17,202+7.3%Added
Bank of Montreal261,858$23.5M0.01%−98,063−27.2%Reduced
Asset Management One Co.,Ltd.265,336$23.6M0.10%−2,481−0.9%Reduced
First Trust Advisors LP270,808$24.1M0.03%−57,640−17.5%Reduced
CI Private Wealth, LLC273,238$24.3M0.06%+3,771+1.4%Added
Manufacturers Life Insurance Company, The298,661$26.6M0.01%+5,578+1.9%Added
Kornitzer Capital Management Inc299,174$26.6M0.52%−1,800−0.6%Reduced
Parnassus Investments301,306$26.8M0.06%+44,191+17.2%Added
Great West Life Assurance Co302,911$27.1M0.06%+40,013+15.2%Added
NZS Capital, LLC305,593$27.2M1.36%+71,813+30.7%Added
D. E. Shaw & Co., Inc.315,101$28.0M0.04%−410,703−56.6%Reduced
Korea Investment CORP320,819$28.6M0.08%−283,991−47.0%Reduced
Select Equity Group, L.P.330,100$29.4M0.11%−235,228−41.6%Reduced
Truist Financial Corp346,061$30.8M0.05%−18,709−5.1%Reduced
Ashford Capital Management Inc361,836$32.2M4.50%+4,512+1.3%Added
New York State Teachers Retirement System365,872$32.6M0.07%−5,201−1.4%Reduced
Mirae Asset Global Investments Co., Ltd.374,462$33.3M0.07%−4,325−1.1%Reduced
Royal London Asset Management Ltd379,513$33.8M0.11%+76,169+25.1%Added
Assenagon Asset Management S.A.387,113$34.5M0.13%+375,812+3,325.5%Added
Prudential Financial Inc390,830$34.8M0.05%−15,714−3.9%Reduced
Natixis Advisors, L.P.393,458$35.0M0.11%+36,822+10.3%Added