CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionVictory Capital Management Inc
Latest Disclosed Ownership335,433 shares
Latest Disclosed Value $ 13,531,367
Victory Capital Management Inc reports 0.13% increase in ownership of CSGP / CoStar Group, Inc.

On May 15, 2026 - Victory Capital Management Inc filed a 13F-HR form disclosing ownership of 335,433 shares of CoStar Group, Inc. (MX:CSGP) valued at $13,531,367 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 334,993 shares of CoStar Group, Inc.. This represents a change in shares of 0.13% 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)
2026-05-15 2026-03-31 13F COSTAR GROUP COM 22160N109 335,433 440 0.13 13,531 -39.93 0.0065
2026-02-13 2025-12-31 13F COSTAR GROUP COM 22160N109 334,993 7,436 2.27 22,525 -18.49 0.0127
2025-11-12 2025-09-30 13F COSTAR GROUP COM 22160N109 327,557 -8,295 -2.47 27,636 2.34 0.0162
2025-08-13 2025-06-30 13F COSTAR GROUP COM 22160N109 335,852 -1,348 -0.40 27,003 1.07 0.0174
2025-05-02 2025-03-31 13F COSTAR GROUP COM 22160N109 337,200 -318,590 -48.58 26,716 -43.09 0.0273
2025-02-06 2024-12-31 13F COSTAR GROUP COM 22160N109 655,790 -1,146 -0.17 46,948 -5.27 0.0461
2024-11-05 2024-09-30 13F COSTAR GROUP COM 22160N109 656,936 -86,254 -11.61 49,559 -10.06 0.0477
2024-08-05 2024-06-30 13F COSTAR GROUP COM 22160N109 743,190 -12,266 -1.62 55,100 -24.50 0.0552
2024-05-03 2024-03-31 13F COSTAR GROUP COM 22160N109 755,456 -12,146 -1.58 72,977 8.79 0.0712
2024-02-05 2023-12-31 13F COSTAR GROUP COM 22160N109 767,602 -283,262 -26.96 67,081 -16.98 0.0706
2023-11-06 2023-09-30 13F COSTAR GROUP COM 22160N109 1,050,864 -45,106 -4.12 80,801 -17.16 0.0929
2023-07-27 2023-06-30 13F COSTAR GROUP COM 22160N109 1,095,970 -5,010 -0.46 97,541 28.68 0.1073
2023-05-02 2023-03-31 13F COSTAR GROUP COM 22160N109 1,100,980 12,568 1.15 75,802 -9.88 0.0851
2023-04-25 2022-12-31 13F/A-3 COSTAR GROUP COM 22160N109 1,088,412 422,304 63.40 84,112 81.30 0.0968
2023-03-10 2022-12-31 13F/A-2 COSTAR GROUP COM 22160N109 1,088,412 422,304 84,112 0.0918
2023-02-10 2022-12-31 13F/A-1 COSTAR GROUP COM 22160N109 1,088,412 422,304 84,112 0.0580
2023-02-09 2022-12-31 13F COSTAR GROUP COM 22160N109 1,076,984 410,876 83,478 0.0567
2022-11-02 2022-09-30 13F COSTAR GROUP COM 22160N109 666,108 -162,293 -19.59 46,394 -7.29 0.0541
2022-08-01 2022-06-30 13F COSTAR GROUP COM 22160N109 828,401 -24,169 -2.83 50,044 -10.57 0.0570
2022-05-04 2022-03-31 13F COSTAR GROUP COM 22160N109 852,570 -242,298 -22.13 55,959 -35.33 0.0560
2022-02-07 2021-12-31 13F COSTAR GROUP COM 22160N109 1,094,868 -411,537 -27.32 86,528 -33.26 0.0796
2021-11-02 2021-09-30 13F COSTAR GROUP COM 22160N109 1,506,405 -46,237 -2.98 129,641 0.82 0.1269
2021-08-03 2021-06-30 13F COSTAR GROUP COM 22160N109 1,552,642 1,400,240 918.78 128,590 2.66 0.1234
2021-05-04 2021-03-31 13F COSTAR GROUP COM 22160N109 152,402 5,510 3.75 125,258 -7.74 0.1284
2021-02-01 2020-12-31 13F COSTAR GROUP COM 22160N109 146,892 -6,615 -4.31 135,769 4.24 0.1513
2020-11-09 2020-09-30 13F CoStar Group COM 22160N109 153,507 -22,830 -12.95 130,252 3.94 0.1672
2020-08-07 2020-06-30 13F COSTAR GROUP COM 22160N109 176,337 3,718 2.15 125,317 23.63 0.1697
2020-05-12 2020-03-31 13F/A-1 COSTAR GROUP COM 22160N109 172,619 -7,051 -3.92 101,364 -5.71 0.1700
2020-05-04 2020-03-31 13F COSTAR GROUP COM 22160N109 172,619 -7,051 101,364 110,932.5977
2020-02-06 2019-12-31 13F/A-1 COSTAR GROUP COM 22160N109 179,670 22,056 13.99 107,497 14.97 0.1305
2020-02-04 2019-12-31 13F COSTAR GROUP COM 22160N109 175,006 17,392 114,277 136,982.7710
2019-11-12 2019-09-30 13F COSTAR GROUP COM 22160N109 157,614 130,044 471.69 93,497 512.09 0.1203
2019-08-15 2019-06-30 13F COSTAR GROUP COM 22160N109 27,570 21,572 359.65 15,275 445.93 0.0308
2019-05-03 2019-03-31 13F COSTAR GROUP CS 22160N109 5,998 -3,379 -36.03 2,798 -11.54 0.0064
2019-05-02 2018-12-31 13F/A-1 COSTAR GROUP COM 22160N109 9,377 -39 -0.41 3,163 -20.19 0.0079
2019-02-05 2018-12-31 13F COSTAR GROUP COM 22160N109 9,377 -39 3,163
2018-11-01 2018-09-30 13F COSTAR GROUP COM 22160N109 9,416 -1,003 -9.63 3,963 -7.82 0.0082
2018-08-02 2018-06-30 13F COSTAR GROUP COM 22160N109 10,419 1,251 13.65 4,299 29.29 0.0091
2018-05-04 2018-03-31 13F COSTAR GROUP COM 22160N109 9,168 1,285 16.30 3,325 42.03 0.0073
2018-02-01 2017-12-31 13F COSTAR GROUP COM 22160N109 7,883 900 12.89 2,341 24.99 0.0049
2017-10-27 2017-09-30 13F COSTAR GROUP COM 22160N109 6,983 181 2.66 1,873 4.46 0.0042
2017-08-07 2017-06-30 13F COSTAR GROUP COM 22160N109 6,802 1,202 21.46 1,793 54.57 0.0042
2017-05-10 2017-03-31 13F COSTAR GROUP COM 22160N109 5,600 5,600 1,160 0.0028
2015-11-06 2015-09-30 13F CoStar Group COM 22160N109 0 -2,615 -100.00 0 -100.00
2015-08-14 2015-06-30 13F/A-01 CoStar Group COM 22160N109 2,615 2,615 526 0.0019
2015-08-07 2015-06-30 13F CoStar Group COM 22160N109 2,615 526
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.