CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionSchroder Investment Management Group
Latest Disclosed Ownership32,137 shares
Latest Disclosed Value $ 1,296,406
Schroder Investment Management Group reports 3.15% decrease in ownership of CSGP / CoStar Group, Inc.

On May 14, 2026 - Schroder Investment Management Group filed a 13F-HR form disclosing ownership of 32,137 shares of CoStar Group, Inc. (MX:CSGP) valued at $1,296,406 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 33,183 shares of CoStar Group, Inc.. This represents a change in shares of -3.15% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F COSTAR GROUP COM 22160N109 32,137 -1,046 -3.15 1,296 -41.91 0.0011
2026-02-13 2025-12-31 13F COSTAR GROUP COM 22160N109 33,183 -4,982 -13.05 2,231 -30.69 0.0017
2025-11-13 2025-09-30 13F COSTAR GROUP COM 22160N109 38,165 -13,144 -25.62 3,220 -21.96 0.0025
2025-08-13 2025-06-30 13F COSTAR GROUP COM 22160N109 51,309 -2,481 -4.61 4,125 -3.19 0.0035
2025-05-13 2025-03-31 13F COSTAR GROUP COM 22160N109 53,790 -3,643 -6.34 4,262 3.65 0.0043
2025-02-12 2024-12-31 13F COSTAR GROUP COM 22160N109 57,433 -1,144 -1.95 4,112 -6.97 0.0039
2024-11-13 2024-09-30 13F COSTAR GROUP COM 22160N109 58,577 6,513 12.51 4,419 14.48 0.0045
2024-08-12 2024-06-30 13F COSTAR GROUP COM 22160N109 52,064 8,411 19.27 3,860 -8.44 0.0043
2024-05-14 2024-03-31 13F COSTAR GROUP COM 22160N109 43,653 1,669 3.98 4,217 14.94 0.0050
2024-02-14 2023-12-31 13F COSTAR GROUP COM 22160N109 41,984 1,484 3.66 3,669 17.79 0.0048
2023-11-14 2023-09-30 13F COSTAR GROUP COM 22160N109 40,500 1,085 2.75 3,114 -11.21 0.0046
2023-08-11 2023-06-30 13F COSTAR GROUP COM 22160N109 39,415 -968 -2.40 3,508 26.15 0.0050
2023-05-11 2023-03-31 13F COSTAR GROUP COM 22160N109 40,383 799 2.02 2,780 -9.12 0.0041
2023-02-10 2022-12-31 13F COSTAR GROUP COM 22160N109 39,584 -309 -0.77 3,059 10.08 0.0049
2022-11-14 2022-09-30 13F COSTAR GROUP COM 22160N109 39,893 6,027 17.80 2,779 35.83 0.0046
2022-08-11 2022-06-30 13F COSTAR GROUP COM 22160N109 33,866 8,133 31.61 2,046 16.98 0.0031
2022-05-16 2022-03-31 13F COSTAR GROUP COM 22160N109 25,733 -635 -2.41 1,749 -16.07 0.0023
2022-02-14 2021-12-31 13F CoStar Group COM 22160N109 26,368 1,203 4.78 2,084 -3.79 0.0027
2021-11-12 2021-09-30 13F COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 25,165 2,455 10.81 2,166 15.15 0.0033
2021-08-13 2021-06-30 13F COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 22,710 20,634 993.93 1,881 10.26 0.0024
2021-05-28 2021-03-31 13F/A-1 COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 2,076 -3,791 -64.62 1,706 34,020.00 0.0022
2021-05-17 2021-03-31 13F COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 2,076 -3,791 1,706 0.0022
2021-02-24 2020-12-31 13F/A-1 COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 5,867 93 1.61 5 -99.90 0.0077
2021-02-16 2020-12-31 13F COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 5,867 93 5 0.0076
2020-11-13 2020-09-30 13F COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 5,774 3,884 205.50 4,938 267.68 0.0079
2020-08-13 2020-06-30 13F COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 1,890 763 67.70 1,343 103.48 0.0024
2020-05-15 2020-03-31 13F COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 1,127 789 233.43 660 226.73 0.0014
2020-02-11 2019-12-31 13F COSTAR GROUP INCORPORATED USD0.01 COM 22160N109 338 338 202 0.0003
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.