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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 2022

Institutional positions in Costar Group, Inc. as of Sep 30, 2022. 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
634
+47 vs. Q2 2022
Shares held
402.2M
+22.1M (+5.8%) vs. Q2 2022
Total value
$28.0B
+$5.08B (+22.1%) vs. Q2 2022
New holders
105
241 more added
Sold out
58
199 more reduced

4 institutions that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2022: 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 2022: 634 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 2022: $28.0B
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 2022

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q2 2022.

Institutions holding CSGP in Q3 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Deutsche Bank AG477,924$33.3M0.02%−69,478−12.7%Reduced
Ironvine Capital Partners, LLC476,900$33.2M4.46%+21,011+4.6%Added
Sandhill Capital Partners LLC468,224$32.6M3.72%−15,926−3.3%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.452,575$31.5M0.10%+136,349+43.1%Added
Jane Street Group, LLC444,971$31.0M0.06%+273,320+159.2%Added
Credit Suisse AG427,495$29.8M0.03%+16,480+4.0%Added
Allspring Global Investments Holdings, LLC407,317$28.4M0.05%+32,201+8.6%Added
Wildcat Capital Management, LLC405,685$28.3M10.86%00.0%Unchanged
Adage Capital Partners GP, L.L.C.403,400$28.1M0.07%+403,400New
Point72 Asset Management, L.P.400,343$27.9M0.12%−228,857−36.4%Reduced
Fred Alger Management, LLC399,597$27.8M0.14%+314,496+369.6%Added
Two Sigma Advisers, LP398,300$27.7M0.08%−814,600−67.2%Reduced
Truist Financial Corp396,418$27.6M0.05%−103,299−20.7%Reduced
Locust Wood Capital Advisers, LLC390,288$27.2M2.09%−75,364−16.2%Reduced
Barclays PLC384,965$26.8M0.03%+105,315+37.7%Added
Korea Investment CORP384,573$26.8M0.08%+136,682+55.1%Added
Kornitzer Capital Management Inc367,631$25.6M0.55%−14,239−3.7%Reduced
Eaton Vance Management348,466$24.3M0.04%+144,627+71.0%Added
New York State Teachers Retirement System346,975$24.2M0.06%+346,975New
Brown Advisory Inc327,066$22.8M0.04%−13,988−4.1%Reduced
Ashford Capital Management Inc326,394$22.7M3.47%−4,866−1.5%Reduced
Great West Life Assurance Co311,381$21.7M0.06%+44,872+16.8%Added
Bank of Montreal300,646$21.6M0.02%+229,394+321.9%Added
Citigroup Inc301,242$21.0M0.03%+1,202+0.4%Added
Manufacturers Life Insurance Company, The298,836$20.8M0.01%+287,600+2,559.6%Added
Select Equity Group, L.P.295,331$20.6M0.09%−159,007−35.0%Reduced
Amundi272,682$20.3M0.01%+79,114+40.9%Added
Royal Bank of Canada285,480$19.9M0.01%+36,963+14.9%Added
HSBC Holdings PLC281,278$19.8M0.04%+168,733+149.9%Added
D. E. Shaw & Co., Inc.283,334$19.7M0.03%−247,575−46.6%Reduced
Royal London Asset Management Ltd282,687$19.7M0.10%−15,318−5.1%Reduced
Night Owl Capital Management, LLC279,200$19.4M8.10%+12,951+4.9%Added
BNP Paribas Arbitrage, SA270,653$18.9M0.05%+143,135+112.2%Added
Intrinsic Edge Capital Management LLC259,161$18.1M2.01%−5,000−1.9%Reduced
KBC Group NV255,711$17.8M0.09%−9,127−3.4%Reduced
Baskin Financial Services Inc.254,966$17.8M2.12%−8,422−3.2%Reduced
Motley Fool Wealth Management, LLC244,927$17.1M1.12%−1,922−0.8%Reduced
Alyeska Investment Group, L.P.244,871$17.1M0.20%+85,655+53.8%Added
Chevy Chase Trust Holdings, Inc.241,851$16.8M0.07%+241,851New
State of New Jersey Common Pension Fund D232,109$16.2M0.07%00.0%Unchanged
Nissay Asset Management Corp231,615$16.1M0.17%−1,692−0.7%Reduced
Ninety One UK Ltd229,719$16.0M0.05%−14,872−6.1%Reduced
Toronto Dominion Bank229,468$16.0M0.03%+99,817+77.0%Added
Stifel Financial Corp228,939$15.9M0.03%−17,777−7.2%Reduced
Handelsbanken Fonder AB227,125$15.8M0.11%+5,857+2.6%Added
State of Wisconsin Investment Board224,747$15.7M0.05%−52,952−19.1%Reduced
Public Employees Retirement System of Ohio223,401$15.6M0.07%+24,985+12.6%Added
Natixis Advisors, L.P.214,317$14.9M0.06%+24,752+13.1%Added
Marsico Capital Management LLC207,152$14.4M0.78%+79,797+62.7%Added
Nishkama Capital, LLC204,590$14.3M6.35%+204,590New
Oppenheimer Asset Management Inc.203,334$14.2M0.25%−2,242−1.1%Reduced
Robeco Institutional Asset Management B.V.202,144$14.1M0.05%+100,162+98.2%Added
Teachers Retirement System of the State of Kentucky200,067$13.9M0.16%+200,067New
NZS Capital, LLC193,449$13.5M1.24%+39,511+25.7%Added
AE Wealth Management LLC192,594$13.4M0.11%−10,498−5.2%Reduced
Boston Private Wealth LLC181,456$12.6M0.18%−5,724−3.1%Reduced
UBS Group AG180,607$12.6M0.01%−90,115−33.3%Reduced
FIL Ltd175,660$12.2M0.02%−207,632−54.2%Reduced
AQR Capital Management LLC175,088$12.2M0.03%−22,907−11.6%Reduced
Treasurer of the State of North Carolina173,814$12.1M0.08%+2,230+1.3%Added
Archon Partners LLC172,000$12.0M2.28%−11,000−6.0%Reduced
Badgley Phelps Wealth Managers, LLC170,514$11.9M0.51%+2,333+1.4%Added
Voya Investment Management LLC169,281$11.8M0.01%+43,123+34.2%Added
CIBC World Markets Corp168,140$11.7M0.16%−1,558−0.9%Reduced
Aviva PLC167,245$11.6M0.07%−2,366−1.4%Reduced
NS Partners Ltd165,210$11.5M0.75%+5,785+3.6%Added
Swedbank AB164,696$11.5M0.03%−1,210−0.7%Reduced
Asset Management One Co.,Ltd.163,305$11.4M0.06%+180+0.1%Added
Cobblestone Capital Advisors LLC159,442$11.1M0.93%+98+0.1%Added
Employees Retirement System of Texas159,000$11.1M0.17%+72,780+84.4%Added
Lakehouse Capital Pty Ltd149,756$10.4M11.42%−35,168−19.0%Reduced
Teacher Retirement System of Texas147,976$10.3M0.07%+43,738+42.0%Added
2Xideas AG147,355$10.3M1.08%−46,997−24.2%Reduced
Scout Investments, Inc.141,122$9.83M0.20%+141,122New
Erste Asset Management GmbH140,000$9.75M0.22%00.0%Unchanged
Gateway Investment Advisers LLC132,608$9.24M0.12%+8,562+6.9%Added
TCW Group Inc132,283$9.21M0.13%−1,442−1.1%Reduced
NFJ Investment Group, LLC227,158$9.17M0.24%+218,308+2,466.8%Added
Retirement Systems of Alabama131,516$9.16M0.04%+131,516New
Advisor Group Holdings, Inc.127,958$8.91M0.02%−23,581−15.6%Reduced
Shell Asset Management Co120,765$8.41M0.33%+4,089+3.5%Added
State of Alaska, Department of Revenue118,065$8.22M0.11%+45,575+62.9%Added
Schonfeld Strategic Advisors LLC114,352$7.96M0.07%−6,448−5.3%Reduced
American International Group, Inc.110,240$7.68M0.06%+105,837+2,403.7%Added
Tredje AP-fonden109,824$7.65M0.16%+64,866+144.3%Added
Cubist Systematic Strategies, LLC109,358$7.62M0.06%−19,213−14.9%Reduced
Arizona State Retirement System108,791$7.58M0.08%−1,447−1.3%Reduced
Liontrust Investment Partners LLP108,000$7.52M0.12%−17,000−13.6%Reduced
MetLife Investment Management107,363$7.48M0.06%+96,783+914.8%Added
State of Michigan Retirement System107,200$7.47M0.05%+107,200New
Sumitomo Mitsui DS Asset Management Company, Ltd104,944$7.31M0.17%+7,899+8.1%Added
Susquehanna International Group, LLP103,809$7.23M0.01%−1,078,959−91.2%Reduced
Amalgamated Bank102,235$7.12M0.07%+62,861+159.7%Added
Flossbach Von Storch AG101,992$7.10M0.03%−166,140−62.0%Reduced
Twin Tree Management, LP98,828$6.88M0.19%−9,163−8.5%Reduced
Northwestern Mutual Wealth Management Co96,272$6.71M0.01%+19,050+24.7%Added
ProShare Advisors LLC95,750$6.67M0.03%+44,989+88.6%Added
Storebrand Asset Management AS95,706$6.67M0.04%00.0%Unchanged
Standard Life Aberdeen plc94,731$6.60M0.02%+63,739+205.7%Added
Nomura Asset Management Co Ltd93,028$6.48M0.04%+6,210+7.2%Added