CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionIcon Wealth Advisors, LLC
Latest Disclosed Ownership7,513 shares
Latest Disclosed Value $ 256,494
Icon Wealth Advisors, LLC reports 57.07% decrease in ownership of CSGP / CoStar Group, Inc.

On May 12, 2026 - Icon Wealth Advisors, LLC filed a 13F-HR form disclosing ownership of 7,513 shares of CoStar Group, Inc. (MX:CSGP) valued at $256,494 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 17,499 shares of CoStar Group, Inc.. This represents a change in shares of -57.07% 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)
2026-05-12 2026-03-31 13F COSTAR GROUP INC COM Stock 22160N109 7,513 -9,986 -57.07 256 -78.25 0.0167
2026-02-13 2025-12-31 13F COSTAR GROUP INC COM Stock 22160N109 17,499 -6,324 -26.55 1,178 -41.41 0.0785
2025-11-14 2025-09-30 13F COSTAR GROUP INC COM Stock 22160N109 23,823 -5,028 -17.43 2,010 -13.37 0.1363
2025-08-14 2025-06-30 13F COSTAR GROUP INC COM Stock 22160N109 28,851 6,432 28.69 2,320 30.57 0.1652
2025-05-15 2025-03-31 13F COSTAR GROUP INC COM Stock 22160N109 22,419 -1,940 -7.96 1,776 1.89 0.1461
2025-02-14 2024-12-31 13F COSTAR GROUP INC COM Stock 22160N109 24,359 20,441 521.72 1,744 490.85 0.1434
2024-11-14 2024-09-30 13F/A-1 COSTAR GROUP INC COM Stock 22160N109 3,918 -954 -19.58 296 -22.37 0.0246
2024-11-12 2024-09-30 13F COSTAR GROUP INC COM Stock 22160N109 409,934 405,062 39,251 3.2672
2024-08-14 2024-06-30 13F COSTAR GROUP INC COM Stock 22160N109 4,872 -950 -16.32 380 -32.38 0.0338
2024-05-15 2024-03-31 13F COSTAR GROUP INC COM Stock 22160N109 5,822 -4,621 -44.25 562 -38.38 0.0522
2024-02-14 2023-12-31 13F COSTAR GROUP INC COM Stock 22160N109 10,443 -3,986 -27.62 913 -18.21 0.0950
2023-02-14 2022-12-31 13F COSTAR GROUP COM 22160N109 14,429 -820 -5.38 1,115 4.99 0.1281
2023-01-25 2022-09-30 13F COSTAR GROUP COM 22160N109 15,249 15,249 1,062 0.1289
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.