Costar Group, Inc.

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND CSGP

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/13/2026

Shares

146,546

Value ($000)

9,854

Weight

0.0%

2020 Q1 - 2025 Q4 (22 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	9,854	0.0%	146,546	12/31/2025
2025 Q3	11/13/2025	24,851	0.0%	294,546	9/30/2025
2025 Q2	8/13/2025	37,139	0.1%	461,925	6/30/2025
2025 Q1	5/14/2025	91,580	0.2%	1,155,877	3/31/2025
2024 Q4	2/14/2025	78,101	0.2%	1,090,950	12/31/2024
2024 Q3	11/13/2024	5,877	0.0%	77,906	9/30/2024
2024 Q2	9/20/2024	2,780	0.0%	37,502	6/30/2024
2024 Q1	5/13/2024	3,864	0.0%	40,000	3/31/2024
2023 Q4	3/21/2024	7,927	0.0%	90,710	12/31/2023
2023 Q3	11/13/2023	1,000	0.0%	13,000	9/30/2023
2022 Q4	2/13/2023	6,787	0.0%	87,819	12/31/2022
2022 Q3	11/14/2022	569	0.0%	8,173	9/30/2022
2022 Q2	8/11/2022	2,991	0.0%	49,513	6/30/2022
2022 Q1	5/12/2022	125	0.0%	1,874	3/31/2022
2021 Q4	2/11/2022	24	0.0%	310	12/31/2021
2021 Q3	11/10/2021	27	0.0%	310	9/30/2021
2021 Q2	8/12/2021	65	0.0%	780	6/30/2021
2021 Q1	5/13/2021	1,345	0.0%	1,637	3/31/2021
2020 Q4	3/1/2021	169	0.0%	183	12/31/2020
2020 Q3	3/1/2021	13	0.0%	15	9/30/2020
2020 Q2	3/1/2021	82	0.0%	115	6/30/2020
2020 Q1	5/13/2020	19	0.0%	32	3/31/2020