CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionPrestige Wealth Management Group LLC
Latest Disclosed Ownership6,026 shares
Latest Disclosed Value $ 243,090
Prestige Wealth Management Group LLC reports 10,113.56% increase in ownership of CSGP / CoStar Group, Inc.

On May 13, 2026 - Prestige Wealth Management Group LLC filed a 13F-HR form disclosing ownership of 6,026 shares of CoStar Group, Inc. (MX:CSGP) valued at $243,090 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 59 shares of CoStar Group, Inc.. This represents a change in shares of 10,113.56% 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)
2026-05-13 2026-03-31 13F COSTAR GROUP COM 22160N109 6,026 5,967 10,113.56 243 8,000.00 0.0467
2026-02-11 2025-12-31 13F COSTAR GROUP COM 22160N109 59 -5,965 -99.02 4 -99.41 0.0008
2026-02-20 2025-09-30 13F/A-1 COSTAR GROUP COM 22160N109 6,024 259 4.49 508 9.72 0.0981
2025-11-10 2025-09-30 13F COSTAR GROUP COM 22160N109 6,024 259 508 0.0981
2026-02-20 2025-06-30 13F/A-1 COSTAR GROUP COM 22160N109 5,765 23 0.40 464 1.98 0.0945
2025-08-14 2025-06-30 13F COSTAR GROUP COM 22160N109 5,765 23 464 0.0945
2026-02-20 2025-03-31 13F/A-1 COSTAR GROUP COM 22160N109 5,742 103 1.83 455 12.66 0.0972
2025-05-12 2025-03-31 13F COSTAR GROUP COM 22160N109 5,742 103 455 0.0972
2026-02-20 2024-12-31 13F/A-1 COSTAR GROUP COM 22160N109 5,639 481 9.33 404 3.60 0.0839
2025-02-12 2024-12-31 13F COSTAR GROUP COM 22160N109 5,639 481 404 0.0839
2026-02-20 2024-09-30 13F/A-1 COSTAR GROUP COM 22160N109 5,158 5,092 7,715.15 389 9,625.00 0.0805
2024-11-15 2024-09-30 13F COSTAR GROUP COM 22160N109 5,158 5,092 389 0.0805
2026-02-20 2024-06-30 13F/A-1 COSTAR GROUP COM 22160N109 66 -4,900 -98.67 5 -99.16 0.0011
2024-08-06 2024-06-30 13F COSTAR GROUP COM 22160N109 66 -4,900 5 0.0011
2024-04-26 2024-03-31 13F COSTAR GROUP COM 22160N109 4,966 4,898 7,202.94 480 9,480.00 0.1033
2024-04-26 2023-12-31 13F/A-1 COSTAR GROUP COM 22160N109 68 0 0.00 6 0.00 0.0013
2024-02-08 2023-12-31 13F COSTAR GROUP COM 22160N109 68 0 6 0.0011
2024-04-26 2023-09-30 13F/A-1 COSTAR GROUP COM 22160N109 68 0 0.00 5 -16.67 0.0013
2023-11-14 2023-09-30 13F COSTAR GROUP COM 22160N109 68 0 5 0.0013
2024-04-26 2023-06-30 13F/A-1 COSTAR GROUP COM 22160N109 68 0 0.00 6 50.00 0.0014
2023-08-11 2023-06-30 13F COSTAR GROUP COM 22160N109 68 0 6 0.0014
2024-04-26 2023-03-31 13F/A-1 COSTAR GROUP COM 22160N109 68 32 88.89 5 100.00 0.0012
2023-05-16 2023-03-31 13F COSTAR GROUP COM 22160N109 68 32 5 0.0012
2023-02-08 2022-12-31 13F COSTAR GROUP COM 22160N109 36 6 20.00 3 0.00 0.0007
2022-11-01 2022-09-30 13F COSTAR GROUP COM 22160N109 30 0 0.00 2 0.00 0.0006
2022-08-10 2022-06-30 13F COSTAR GROUP COM 22160N109 30 0 0.00 2 0.00 0.0005
2022-05-05 2022-03-31 13F COSTAR GROUP COM 22160N109 30 0 0.00 2 0.00 0.0005
2022-02-15 2021-12-31 13F COSTAR GROUP COM 22160N109 30 0 0.00 2 -33.33 0.0005
2021-11-12 2021-09-30 13F COSTAR GROUP COM 22160N109 30 0 0.00 3 50.00 0.0008
2021-08-12 2021-06-30 13F COSTAR GROUP COM 22160N109 30 27 900.00 2 0.00 0.0005
2021-05-13 2021-03-31 13F COSTAR GROUP COM 22160N109 3 0 0.00 2 -33.33 0.0005
2021-02-17 2020-12-31 13F COSTAR GROUP COM 22160N109 3 0 0.00 3 0.00 0.0008
2020-10-26 2020-09-30 13F COSTAR GROUP COM 22160N109 3 0 0.00 3 50.00 0.0009
2020-08-13 2020-06-30 13F COSTAR GROUP COM 22160N109 3 0 0.00 2 0.00 0.0007
2020-05-15 2020-03-31 13F COSTAR GROUP COM 22160N109 3 3 2 0.0008
2020-01-28 2019-12-31 13F COSTAR GROUP COM 22160N109 0 -8 -100.00 0 -100.00
2019-11-14 2019-09-30 13F COSTAR GROUP COM 22160N109 8 8 5 0.0029
2019-08-15 2019-06-30 13F Costar Group COM 22160N109 0 0 0 0.0000
2019-08-16 2019-03-31 13F Costar Group COM 22160N109 0 -16 -100.00 0 -100.00
2019-04-16 2018-12-31 13F Costar Group COM 22160N109 16 16 5 0.0037
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.