CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionVoya Financial Advisors, Inc.
Latest Disclosed Ownership8,773 shares
Latest Disclosed Value $ 348,902
Voya Financial Advisors, Inc. reports 34.88% decrease in ownership of CSGP / CoStar Group, Inc.

On May 12, 2026 - Voya Financial Advisors, Inc. filed a 13F-HR form disclosing ownership of 8,773 shares of CoStar Group, Inc. (MX:CSGP) valued at $348,902 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 13,473 shares of CoStar Group, Inc.. This represents a change in shares of -34.88% 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 COM 22160N109 8,773 -4,700 -34.88 349 -61.76 0.0348
2026-02-13 2025-12-31 13F COSTAR GROUP COM 22160N109 13,473 -919 -6.39 911 -24.92 0.0875
2025-10-09 2025-09-30 13F COSTAR GROUP COM 22160N109 14,392 -1,146 -7.38 1,212 -3.35 0.1169
2025-08-14 2025-06-30 13F COSTAR GROUP COM 22160N109 15,538 -816 -4.99 1,255 -3.32 0.1266
2025-05-15 2025-03-31 13F COSTAR GROUP COM 22160N109 16,354 -1,827 -10.05 1,297 -0.61 0.1431
2025-02-14 2024-12-31 13F COSTAR GROUP COM 22160N109 18,181 -1,048 -5.45 1,306 -9.50 0.1420
2024-11-14 2024-09-30 13F COSTAR GROUP COM 22160N109 19,229 -1,153 -5.66 1,442 -4.69 0.1556
2024-08-14 2024-06-30 13F COSTAR GROUP COM 22160N109 20,382 539 2.72 1,514 -20.74 0.1711
2024-05-15 2024-03-31 13F COSTAR GROUP COM 22160N109 19,843 -931 -4.48 1,909 4.43 0.2180
2024-02-14 2023-12-31 13F COSTAR GROUP COM 22160N109 20,774 364 1.78 1,828 16.66 0.2200
2023-11-14 2023-09-30 13F COSTAR GROUP COM 22160N109 20,410 -606 -2.88 1,568 -17.22 0.1952
2023-08-14 2023-06-30 13F COSTAR GROUP COM 22160N109 21,016 2,409 12.95 1,894 49.29 0.2205
2023-05-15 2023-03-31 13F COSTAR GROUP COM 22160N109 18,607 571 3.17 1,268 -9.43 0.1579
2023-02-14 2022-12-31 13F COSTAR GROUP COM 22160N109 18,036 -6,085 -25.23 1,401 -17.89 0.1821
2022-11-14 2022-09-30 13F COSTAR GROUP COM 22160N109 24,121 378 1.59 1,705 19.23 0.2204
2022-08-15 2022-06-30 13F COSTAR GROUP COM 22160N109 23,743 -269 -1.12 1,430 -12.43 0.1780
2022-05-16 2022-03-31 13F COSTAR GROUP COM 22160N109 24,012 -508 -2.07 1,633 -16.94 0.1867
2022-02-14 2021-12-31 13F COSTAR GROUP COM 22160N109 24,520 1,251 5.38 1,966 -1.06 0.2220
2021-11-15 2021-09-30 13F COSTAR GROUP COM 22160N109 23,269 2,487 11.97 1,987 14.79 0.2431
2021-08-16 2021-06-30 13F COSTAR GROUP COM 22160N109 20,782 13,457 183.71 1,731 -70.45 0.2260
2021-05-17 2021-03-31 13F COSTAR GROUP COM 22160N109 7,325 1,369 22.99 5,857 6.32 0.2309
2021-03-05 2020-12-31 13F COSTAR GROUP COM 22160N109 5,956 1,673 39.06 5,509 50.11 0.2374
2020-11-16 2020-09-30 13F COSTAR GROUP COM 22160N109 4,283 906 26.83 3,670 57.11 0.1821
2020-08-14 2020-06-30 13F COSTAR GROUP COM 22160N109 3,377 184 5.76 2,336 21.92 0.1227
2020-05-15 2020-03-31 13F COSTAR GROUP COM 22160N109 3,193 383 13.63 1,916 14.25 0.1061
2020-02-14 2019-12-31 13F COSTAR GROUP COM 22160N109 2,810 146 5.48 1,677 9.25 0.0825
2019-11-26 2019-09-30 13F/A-1 COSTAR GROUP COM 22160N109 2,664 215 8.78 1,535 15.41 0.0827
2019-11-14 2019-09-30 13F COSTAR GROUP COM 22160N109 2,664 215 1,535 82,843.3791
2019-08-14 2019-06-30 13F COSTAR GROUP COM 22160N109 2,449 521 27.02 1,330 49.27 0.0711
2019-05-15 2019-03-31 13F COSTAR GROUP COM 22160N109 1,928 159 8.99 891 49.50 0.0517
2019-02-14 2018-12-31 13F COSTAR GROUP COM 22160N109 1,769 242 15.85 596 -6.58 0.0397
2018-11-14 2018-09-30 13F COSTAR GROUP COM 22160N109 1,527 349 29.63 638 30.47 0.0373
2018-08-14 2018-06-30 13F COSTAR GROUP COM 22160N109 1,178 161 15.83 489 35.08 0.0318
2018-05-15 2018-03-31 13F COSTAR GROUP COM 22160N109 1,017 119 13.25 362 36.60 0.0241
2018-02-14 2017-12-31 13F COSTAR GROUP COM 22160N109 898 79 9.65 265 21.56 0.0170
2017-11-14 2017-09-30 13F COSTAR GROUP COM 22160N109 819 819 218 0.0145
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.