Costar Group, Inc.

KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC CSGP

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/13/2026

Shares

635,720

Value ($000)

42,746

Weight

0.1%

2014 Q1 - 2025 Q4 (27 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/13/2026	42,746	0.1%	635,720	12/31/2025
2025 Q3	11/13/2025	62,572	0.2%	741,641	9/30/2025
2025 Q2	8/13/2025	62,928	0.2%	782,686	6/30/2025
2025 Q1	5/14/2025	65,962	0.2%	832,539	3/31/2025
2024 Q4	2/21/2025	64,993	0.1%	907,848	12/31/2024
2024 Q3	11/13/2024	71,576	0.2%	948,782	9/30/2024
2024 Q2	8/13/2024	72,408	0.2%	976,643	6/30/2024
2024 Q1	5/14/2024	98,343	0.2%	1,018,043	3/31/2024
2023 Q4	2/13/2024	91,494	0.2%	1,046,965	12/31/2023
2023 Q3	11/13/2023	79,191	0.2%	1,029,927	9/30/2023
2023 Q2	8/11/2023	93,892	0.3%	1,054,969	6/30/2023
2023 Q1	5/16/2023	74,312	0.2%	1,079,333	3/31/2023
2022 Q4	2/14/2023	85,054	0.3%	1,100,595	12/31/2022
2022 Q3	11/16/2022	80,034	0.3%	1,149,086	9/30/2022
2022 Q2	8/12/2022	70,588	0.2%	1,168,488	6/30/2022
2022 Q1	5/16/2022	76,482	0.2%	1,148,206	3/31/2022
2021 Q4	2/14/2022	92,902	0.2%	1,175,532	12/31/2021
2021 Q3	11/12/2021	102,392	0.2%	1,189,776	9/30/2021
2021 Q2	8/13/2021	98,553	0.2%	1,189,967	6/30/2021
2021 Q1	5/17/2021	98,035	0.3%	119,280	3/31/2021
2020 Q4	2/12/2021	109,243	0.3%	118,192	12/31/2020
2020 Q3	11/16/2020	95,444	0.3%	112,484	9/30/2020
2020 Q2	8/14/2020	71,115	0.3%	100,068	6/30/2020
2020 Q1	5/15/2020	48,897	0.3%	83,270	3/31/2020
2019 Q4	2/13/2020	45,210	0.2%	75,563	12/31/2019
2014 Q2	8/5/2014	15,111	0.3%	95,536	6/30/2014
2014 Q1	4/30/2014	1,584	0.0%	8,481	3/31/2014