Costar Group, Inc.

CSGP

Exchange: Nasdaq
Industry: Services-Business Services, NEC
SEC CIK: 0001057352

SEC filings (opens in a new tab)

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, Q1 2021

Institutional positions in Costar Group, Inc. as of Mar 31, 2021. 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: 593; No complete 13F data for Q4 2020
Shares held: 38.0M; No complete 13F data for Q4 2020
Total value: $31.2B; No complete 13F data for Q4 2020

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 holdersQ1 2021: 593 institutions

Value heldQ1 2021: $31.2B

Institutions holding CSGP and their total value by quarter
Quarter	Holders	Value
Q2 2026	760	$11.7B
Q1 2026	797	$16.8B
Q4 2025	847	$28.4B
Q3 2025	905	$34.9B
Q2 2025	873	$34.2B
Q1 2025	858	$33.9B
Q4 2024	805	$28.9B
Q3 2024	773	$30.0B
Q2 2024	767	$29.3B
Q1 2024	767	$38.4B
Q4 2023	737	$34.4B
Q3 2023	690	$30.1B
Q2 2023	714	$35.5B
Q1 2023	692	$26.7B
Q4 2022	704	$30.4B
Q3 2022	634	$28.0B
Q2 2022	591	$23.0B
Q1 2022	589	$25.2B
Q4 2021	633	$29.6B
Q3 2021	594	$32.3B
Q2 2021	607	$31.1B
Q1 2021	593	$31.2B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Costar Group, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding CSGP in Q1 2021
Institution	Shares	Value	% of portfolio	Change in shares	Action
Utah Retirement Systems	7,501	$6.17M	0.09%	–	–
Voya Financial Advisors, Inc.	7,325	$5.86M	0.23%	–	–
Zurcher Kantonalbank (Zurich Cantonalbank)	7,078	$5.82M	0.03%	–	–
Forsta Ap-Fonden	7,000	$5.75M	0.08%	–	–
XXEC, Inc.	6,969	$5.73M	4.03%	–	–
Skandinaviska Enskilda Banken AB (publ)	6,906	$5.68M	0.04%	–	–
First Trust Advisors LP	6,683	$5.49M	0.01%	–	–
British Columbia Investment Management Corp	6,457	$5.31M	0.04%	–	–
Cubist Systematic Strategies, LLC	6,297	$5.17M	0.07%	–	–
Jag Capital Management, LLC	6,271	$5.15M	0.46%	–	–
Shaker Investments LLC	6,257	$5.14M	2.49%	–	–
Foster Victor Wealth Advisors, LLC	5,643	$5.11M	0.95%	–	–
Commerce Bank	6,082	$5.00M	0.04%	–	–
Andra AP-fonden	6,000	$4.93M	0.11%	–	–
Banque Pictet & Cie SA	6,000	$4.93M	0.06%	–	–
Nisa Investment Advisors, LLC	5,735	$4.71M	0.03%	–	–
Formula Growth Ltd	5,500	$4.52M	0.65%	–	–
ProShare Advisors LLC	5,493	$4.51M	0.01%	–	–
Reliant Investment Management, LLC	5,410	$4.45M	2.18%	–	–
Nishkama Capital, LLC	5,400	$4.44M	1.26%	–	–
Public Employees Retirement Association of Colorado	5,391	$4.43M	0.02%	–	–
Shell Asset Management Co	5,343	$4.39M	0.09%	–	–
LPL Financial LLC	5,105	$4.20M	0.00%	–	–
Employees Retirement System of Texas	4,922	$4.04M	0.05%	–	–
Oregon Public Employees Retirement Fund	4,900	$4.03M	0.05%	–	–
BTC Capital Management, Inc.	4,885	$4.01M	0.45%	–	–
Janney Montgomery Scott LLC	4,840	$3.98M	0.02%	–	–
Redwood Investments, LLC	4,663	$3.83M	0.34%	–	–
Azzad Asset Management Inc	4,515	$3.71M	0.62%	–	–
Illinois Municipal Retirement Fund	4,466	$3.67M	0.16%	–	–
MML Investors Services, LLC	4,374	$3.60M	0.03%	–	–
Magnetar Financial LLC	4,363	$3.59M	0.03%	–	–
Regions Financial Corp	4,321	$3.55M	0.03%	–	–
Worldquant Millennium Advisors LLC	4,265	$3.50M	0.07%	–	–
IFM Investors Pty Ltd	4,233	$3.48M	0.09%	–	–
AlphaCrest Capital Management LLC	4,218	$3.47M	0.19%	–	–
DekaBank Deutsche Girozentrale	4,260	$3.40M	0.01%	–	–
EFG Asset Management (Americas) Corp.	4,121	$3.39M	0.69%	–	–
Taikang Asset Management (Hong Kong) Co Ltd	4,101	$3.37M	0.64%	–	–
Cambridge Investment Research Advisors, Inc.	4,068	$3.34M	0.02%	–	–
Xponance, Inc.	4,060	$3.34M	0.07%	–	–
Standard Life Aberdeen plc	4,059	$3.34M	0.01%	–	–
Point72 Hong Kong Ltd	3,987	$3.28M	0.26%	–	–
Lee Capital Holdings LLC	3,955	$3.25M	1.49%	–	–
Marks Group Wealth Management, Inc	3,875	$3.18M	0.47%	–	–
Allianz Asset Management GmbH	3,857	$3.17M	0.00%	–	–
Papp L Roy & Associates	3,833	$3.15M	0.45%	–	–
AXA S.A.	3,820	$3.14M	0.01%	–	–
Nicholas Investment Partners, LP	3,701	$3.04M	0.21%	–	–
Wolverine Trading, LLC	3,757	$3.00M	0.06%	–	–
Tower Research Capital LLC (TRC)	3,619	$2.97M	0.05%	–	–
Next Century Growth Investors LLC	3,558	$2.92M	0.22%	–	–
Los Angeles Capital Management LLC	3,495	$2.87M	0.01%	–	–
M&T Bank Corp	3,483	$2.86M	0.01%	–	–
HighTower Advisors, LLC	3,429	$2.82M	0.01%	–	–
Banco Santander, S.A.	3,395	$2.79M	0.02%	–	–
Pinebridge Investments, L.P.	3,380	$2.78M	0.04%	–	–
Stephens Inc	3,321	$2.73M	0.04%	–	–
Federation des caisses Desjardins du Quebec	3,312	$2.72M	0.03%	–	–
ExodusPoint Capital Management, LP	3,311	$2.72M	0.05%	–	–
Clearbridge Investments, LLC	3,202	$2.63M	0.00%	–	–
Barbara Oil Co.	3,200	$2.63M	1.27%	–	–
Carderock Capital Management Inc	3,039	$2.50M	0.75%	–	–
HawsGoodwin Investment Management LLC	3,012	$2.48M	0.79%	–	–
Aigen Investment Management, LP	3,007	$2.47M	0.33%	–	–
Fifth Third Bancorp	3,000	$2.47M	0.01%	–	–
Maryland State Retirement & Pension System	2,982	$2.45M	0.09%	–	–
Vestmark Advisory Solutions, Inc.	2,972	$2.44M	0.22%	–	–
Tributary Capital Management, LLC	2,950	$2.42M	0.19%	–	–
Capitolis Advisors LLC	2,935	$2.41M	0.04%	–	–
Comerica Bank	2,544	$2.38M	0.01%	–	–
Westpac Banking Corp	2,877	$2.36M	0.03%	–	–
Metropolitan Life Insurance Co	2,836	$2.33M	0.03%	–	–
Intrinsic Edge Capital Management LLC	2,748	$2.26M	0.16%	–	–
Daiwa Securities Group Inc.	2,694	$2.21M	0.02%	–	–
TBH Global Asset Management, LLC	2,660	$2.19M	0.57%	–	–
TD Private Client Wealth LLC	2,654	$2.18M	0.10%	–	–
Virtu Financial LLC	2,586	$2.13M	0.15%	–	–
Mackenzie Financial Corp	2,516	$2.07M	0.00%	–	–
Bell Bank	2,482	$2.04M	0.29%	–	–
Jackson Wealth Management, LLC	2,433	$2.00M	0.30%	–	–
AXS Investments LLC	2,408	$1.98M	0.70%	–	–
Fortis Capital Management LLC	2,400	$1.97M	1.14%	–	–
Townsend & Associates, Inc	2,343	$1.93M	1.25%	–	–
Park Avenue Securities LLC	2,316	$1.90M	0.05%	–	–
Weiss Asset Management LP	2,255	$1.85M	0.05%	–	–
FDx Advisors, Inc.	2,237	$1.84M	0.07%	–	–
Schroder Investment Management Group	2,076	$1.71M	0.00%	–	–
Candriam Luxembourg S.C.A.	1,919	$1.70M	0.01%	–	–
Emerald Advisers, LLC	2,048	$1.68M	0.06%	–	–
Chartwell Investment Partners, LLC	2,044	$1.68M	0.05%	–	–
Achmea Investment Management B.V.	2,036	$1.67M	0.06%	–	–
Fort, L.P.	1,967	$1.62M	0.45%	–	–
Institute for Wealth Management, LLC.	1,940	$1.59M	0.31%	–	–
Sumitomo Life Insurance Co	1,936	$1.59M	0.06%	–	–
Amalgamated Bank	1,919	$1.58M	0.06%	–	–
Corient Capital Partners, LLC	1,905	$1.56M	0.13%	–	–
Captrust Financial Advisors	1,895	$1.56M	0.02%	–	–
Verition Fund Management LLC	1,878	$1.54M	0.03%	–	–
Cresset Asset Management, LLC	1,870	$1.54M	0.02%	–	–