CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionEnvestnet Asset Management Inc
Latest Disclosed Ownership1,802,537 shares
Latest Disclosed Value $ 72,714,325
Envestnet Asset Management Inc reports 34.94% increase in ownership of CSGP / CoStar Group, Inc.

On May 4, 2026 - Envestnet Asset Management Inc filed a 13F-HR form disclosing ownership of 1,802,537 shares of CoStar Group, Inc. (MX:CSGP) valued at $72,714,325 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 1,335,852 shares of CoStar Group, Inc.. This represents a change in shares of 34.94% 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)
2026-05-04 2026-03-31 13F COSTAR GROUP COM 22160N109 1,802,537 466,685 34.94 72,714 -19.05 0.0195
2026-02-10 2025-12-31 13F COSTAR GROUP COM 22160N109 1,335,852 -373,323 -21.84 89,823 -37.71 0.0266
2025-11-05 2025-09-30 13F COSTAR GROUP COM 22160N109 1,709,175 -30,088 -1.73 144,203 3.12 0.0415
2025-08-01 2025-06-30 13F COSTAR GROUP COM 22160N109 1,739,263 -46,000 -2.58 139,837 -1.14 0.0408
2025-04-29 2025-03-31 13F COSTAR GROUP COM 22160N109 1,785,263 -26,550 -1.47 141,446 9.05 0.0456
2025-02-13 2024-12-31 13F COSTAR GROUP COM 22160N109 1,811,813 141,220 8.45 129,708 2.92 0.0416
2024-11-07 2024-09-30 13F COSTAR GROUP COM 22160N109 1,670,593 -50,719 -2.95 126,030 -1.25 0.0407
2024-08-08 2024-06-30 13F COSTAR GROUP COM 22160N109 1,721,312 -2,626 -0.15 127,618 -23.37 0.0445
2024-05-13 2024-03-31 13F COSTAR GROUP COM 22160N109 1,723,938 -93,880 -5.16 166,532 4.83 0.0622
2024-02-13 2023-12-31 13F COSTAR GROUP COM 22160N109 1,817,818 42,004 2.37 158,859 16.34 0.0657
2023-11-13 2023-09-30 13F COSTAR GROUP COM 22160N109 1,775,814 352,169 24.74 136,542 7.76 0.0625
2023-08-04 2023-06-30 13F COSTAR GROUP COM 22160N109 1,423,645 9,313 0.66 126,704 30.12 0.0562
2023-05-11 2023-03-31 13F COSTAR GROUP COM 22160N109 1,414,332 28,124 2.03 97,377 -9.10 0.0468
2023-02-07 2022-12-31 13F COSTAR GROUP COM 22160N109 1,386,208 -42,698 -2.99 107,126 7.64 0.0555
2022-11-10 2022-09-30 13F COSTAR GROUP COM 22160N109 1,428,906 57,247 4.17 99,523 20.11 0.0568
2022-08-03 2022-06-30 13F COSTAR GROUP COM 22160N109 1,371,659 83,043 6.44 82,862 -3.46 0.0463
2022-05-04 2022-03-31 13F COSTAR GROUP COM 22160N109 1,288,616 175,561 15.77 85,835 -2.42 0.0432
2022-02-04 2021-12-31 13F COSTAR GROUP COM 22160N109 1,113,055 -13,043 -1.16 87,965 -9.23 0.0435
2021-10-07 2021-09-30 13F COSTAR GROUP COM 22160N109 1,126,098 91,786 8.87 96,912 13.13 0.0532
2021-08-04 2021-06-30 13F COSTAR GROUP COM 22160N109 1,034,312 942,787 1,030.09 85,662 13.88 0.0486
2021-05-04 2021-03-31 13F COSTAR GROUP COM 22160N109 91,525 28,848 46.03 75,223 29.85 0.0489
2021-02-02 2020-12-31 13F COSTAR GROUP COM 22160N109 62,677 12,290 24.39 57,931 35.50 0.0437
2020-10-09 2020-09-30 13F COSTAR GROUP COM 22160N109 50,387 8,734 20.97 42,754 44.43 0.0379
2020-07-08 2020-06-30 13F COSTAR GROUP COM 22160N109 41,653 5,973 16.74 29,602 41.28 0.0290
2020-04-23 2020-03-31 13F COSTAR GROUP COM 22160N109 35,680 1,136 3.29 20,952 1.37 0.0248
2020-02-11 2019-12-31 13F COSTAR GROUP COM 22160N109 34,544 5,470 18.81 20,668 19.84 0.0218
2019-10-17 2019-09-30 13F COSTAR GROUP COM 22160N109 29,074 1,731 6.33 17,247 13.85 0.0189
2019-08-02 2019-06-30 13F COSTAR GROUP COM 22160N109 27,343 4,327 18.80 15,149 41.12 0.0191
2019-05-10 2019-03-31 13F COSTAR GROUP COM 22160N109 23,016 718 3.22 10,735 42.71 0.0147
2019-02-12 2018-12-31 13F COSTAR GROUP COM 22160N109 22,298 21,634 3,258.13 7,522 2,596.06 0.0116
2018-11-14 2018-09-30 13F COSTAR GROUP COM 22160N109 664 -8,385 -92.66 279 -92.53 0.0005
2018-08-10 2018-06-30 13F COSTAR GROUP COM 22160N109 9,049 -353 -3.75 3,733 9.25 0.0085
2018-05-09 2018-03-31 13F COSTAR GROUP COM 22160N109 9,402 -9,960 -51.44 3,417 -40.56 0.0097
2018-02-20 2017-12-31 13F COSTAR GROUP COM 22160N109 19,362 -3,587 -15.63 5,749 -6.63 0.0128
2017-11-13 2017-09-30 13F COSTAR GROUP COM 22160N109 22,949 -2,668 -10.41 6,157 -8.84 0.0147
2017-08-14 2017-06-30 13F COSTAR GROUP COM 22160N109 25,617 2,597 11.28 6,754 41.68 0.0187
2017-05-09 2017-03-31 13F COSTAR GROUP COM 22160N109 23,020 -1,192 -4.92 4,767 4.52 0.0153
2017-02-14 2016-12-31 13F COSTAR GROUP COM 22160N109 24,212 -678 -2.72 4,561 -15.36 0.0165
2016-11-14 2016-09-30 13F COSTAR GROUP COM 22160N109 24,890 -16,129 -39.32 5,389 -39.92 0.0209
2016-08-15 2016-06-30 13F COSTAR GROUP COM 22160N109 41,019 1,466 3.71 8,969 20.50 0.0358
2016-05-16 2016-03-31 13F COSTAR GROUP COM 22160N109 39,553 496 1.27 7,443 -7.80 0.0321
2016-02-16 2015-12-31 13F COSTAR GROUP COM 22160N109 39,057 945 2.48 8,073 22.39 0.0367
2015-11-13 2015-09-30 13F COSTAR GROUP COM 22160N109 38,112 3,043 8.68 6,596 -6.55 0.0328
2015-08-13 2015-06-30 13F COSTAR GROUP COM 22160N109 35,069 40 0.11 7,058 1.85 0.0336
2015-05-15 2015-03-31 13F COSTAR GROUP COM 22160N109 35,029 34,917 31,175.89 6,930 32,900.00 0.0358
2015-02-12 2014-12-31 13F CoStar Group COM 22160N109 112 -27 -19.42 21 -4.55 0.0002
2014-11-13 2014-09-30 13F CoStar Group COM 22160N109 139 25 21.93 22 22.22 0.0002
2014-08-14 2014-06-30 13F * COSTAR GROUP COM 22160N109 114 40 54.05 18 28.57 0.0002
2014-05-12 2014-03-31 13F CoStar Group COM 22160N109 74 15 25.42 14 27.27 0.0002
2014-02-12 2013-12-31 13F CoStar Group COM 22160N109 59 42 247.06 11 266.67 0.0001
2013-11-12 2013-09-30 13F CoStar Group COM 22160N109 17 17 3 0.0000
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.