CoStar Group, Inc.
MX ˙ BMV ˙ US22160N1090
DIESES SYMBOL IST NICHT MEHR AKTIV
SecurityMX:CSGP / CoStar Group, Inc.
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership61,102 shares
Latest Disclosed Value $ 2,464,846
Neuberger Berman Group LLC reports 63.99% decrease in ownership of CSGP / CoStar Group, Inc.

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 61,102 shares of CoStar Group, Inc. (MX:CSGP) valued at $2,464,846 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 169,667 shares of CoStar Group, Inc.. This represents a change in shares of -63.99% 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)
2026-05-14 2026-03-31 13F COSTAR GROUP Common 22160N109 61,102 -108,565 -63.99 2,465 -78.40 0.0019
2026-02-13 2025-12-31 13F COSTAR GROUP Common 22160N109 169,667 -252,126 -59.77 11,408 -67.94 0.0085
2025-11-12 2025-09-30 13F COSTAR GROUP Common 22160N109 421,793 156,437 58.95 35,587 66.80 0.0260
2025-08-25 2025-06-30 13F/A-1 COSTAR GROUP Common 22160N109 265,356 193,067 267.08 21,335 272.52 0.0164
2025-08-13 2025-06-30 13F COSTAR GROUP Common 22160N109 265,356 193,067 21,335 0.0085
2025-05-13 2025-03-31 13F COSTAR GROUP Common 22160N109 72,289 -2,443 -3.27 5,727 7.05 0.0048
2025-02-13 2024-12-31 13F COSTAR GROUP Common 22160N109 74,732 -1,281 -1.69 5,350 -6.70 0.0042
2024-11-14 2024-09-30 13F COSTAR GROUP Common 22160N109 76,013 -7,541 -9.03 5,734 -7.43 0.0045
2024-11-14 2024-06-30 13F/A-1 COSTAR GROUP Common 22160N109 83,554 -218,468 -72.34 6,195 -78.77 0.0051
2024-08-13 2024-06-30 13F COSTAR GROUP Common 22160N109 83,554 -218,468 6,195 0.0051
2024-11-14 2024-03-31 13F/A-1 COSTAR GROUP Common 22160N109 302,022 36,507 13.75 29,175 25.74 0.0241
2024-05-13 2024-03-31 13F COSTAR GROUP Common 22160N109 302,022 36,507 29,175 0.0241
2024-11-14 2023-12-31 13F/A-2 COSTAR GROUP Common 22160N109 265,515 -3,932 -1.46 23,203 12.00 0.0202
2024-02-09 2023-12-31 13F COSTAR GROUP Common 22160N109 265,515 -3,932 23,203 0.0202
2023-11-14 2023-09-30 13F COSTAR GROUP Common 22160N109 269,447 52,706 24.32 20,718 7.40 0.0189
2023-08-11 2023-06-30 13F COSTAR GROUP Common 22160N109 216,741 778 0.36 19,290 29.73 0.0172
2023-05-12 2023-03-31 13F COSTAR GROUP Common 22160N109 215,963 -257,891 -54.42 14,869 -59.40 0.0138
2023-02-13 2022-12-31 13F COSTAR GROUP Common 22160N109 473,854 -1,377,100 -74.40 36,619 -71.62 0.0359
2022-11-15 2022-09-30 13F COSTAR GROUP Common 22160N109 1,850,954 -104,101 -5.32 129,030 9.27 0.1347
2022-08-15 2022-06-30 13F COSTAR GROUP Common 22160N109 1,955,055 -7,002 -0.36 118,086 -9.74 0.1187
2022-05-23 2022-03-31 13F/A-1 COSTAR GROUP Common 22160N109 1,962,057 348,314 21.58 130,833 2.61 0.1108
2022-05-13 2022-03-31 13F COSTAR GROUP Common 22160N109 1,954,880 341,137 130,295 0.0581
2022-02-11 2021-12-31 13F COSTAR GROUP Common 22160N109 1,613,743 269,618 20.06 127,500 10.36 0.1000
2021-11-12 2021-09-30 13F COSTAR GROUP Common 22160N109 1,344,125 906,325 207.02 115,532 219.13 0.1010
2021-08-13 2021-06-30 13F COSTAR GROUP Common 22160N109 437,800 397,521 986.92 36,202 9.54 0.0316
2021-05-13 2021-03-31 13F COSTAR GROUP Common 22160N109 40,279 -3,297 -7.57 33,049 -17.92 0.0316
2021-02-10 2020-12-31 13F COSTAR GROUP Common 22160N109 43,576 -293 -0.67 40,262 8.16 0.0417
2020-11-12 2020-09-30 13F COSTAR GROUP Common 22160N109 43,869 286 0.66 37,223 20.18 0.0441
2020-08-13 2020-06-30 13F COSTAR GROUP Common 22160N109 43,583 -10,046 -18.73 30,972 -1.65 0.0385
2020-05-14 2020-03-31 13F COSTAR GROUP Common 22160N109 53,629 -20,612 -27.76 31,491 -29.10 0.0480
2020-02-12 2019-12-31 13F COSTAR GROUP Common 22160N109 74,241 -2,400 -3.13 44,418 -2.30 0.0518
2019-11-13 2019-09-30 13F COSTAR GROUP Common 22160N109 76,641 -7,867 -9.31 45,463 -2.90 0.0555
2019-08-13 2019-06-30 13F COSTAR GROUP Common 22160N109 84,508 -7,500 -8.15 46,823 9.11 0.0560
2019-05-13 2019-03-31 13F COSTAR GROUP Common 22160N109 92,008 -15,111 -14.11 42,914 18.76 0.0526
2019-02-12 2018-12-31 13F COSTAR GROUP Common 22160N109 107,119 -1,406 -1.30 36,136 -20.88 0.0504
2018-11-16 2018-09-30 13F/A-1 COSTAR GROUP Common 22160N109 108,525 -16,075 -12.90 45,672 -11.17 0.0518
2018-11-13 2018-09-30 13F COSTAR GROUP Common 22160N109 108,525 -16,075 45,672
2018-08-13 2018-06-30 13F COSTAR GROUP Common 22160N109 124,600 -8,154 -6.14 51,414 6.78 0.0568
2018-05-08 2018-03-31 13F COSTAR GROUP Common 22160N109 132,754 -8,386 -5.94 48,148 14.88 0.0550
2018-02-14 2017-12-31 13F COSTAR GROUP Common 22160N109 141,140 -170 -0.12 41,912 10.57 0.0482
2017-11-15 2017-09-30 13F COSTAR GROUP COMMON STOCK 22160N109 141,310 38 0.03 37,906 1.79 0.0474
2017-08-08 2017-06-30 13F COSTAR GROUP COMMON STOCK 22160N109 141,272 953 0.68 37,239 28.07 0.0478
2017-05-10 2017-03-31 13F COSTAR GROUP COMMON STOCK 22160N109 140,319 376 0.27 29,077 10.23 0.0375
2017-02-06 2016-12-31 13F COSTAR GROUP COMMON STOCK 22160N109 139,943 -381 -0.27 26,378 -13.18 0.0354
2016-11-02 2016-09-30 13F COSTAR GROUP COMMON STOCK 22160N109 140,324 7,771 5.86 30,384 4.83 0.0412
2016-08-05 2016-06-30 13F COSTAR GROUP COMMON STOCK 22160N109 132,553 -3,064 -2.26 28,984 13.58 0.0399
2016-05-06 2016-03-31 13F COSTAR GROUP COMMON STOCK 22160N109 135,617 116 0.09 25,519 -8.88 0.0351
2016-01-28 2015-12-31 13F COSTAR GROUP COMMON STOCK 22160N109 135,501 -36,556 -21.25 28,007 -5.94 0.0367
2015-11-10 2015-09-30 13F COSTAR GROUP COMMON STOCK 22160N109 172,057 37,384 27.76 29,776 9.86 0.0384
2015-07-31 2015-06-30 13F COSTAR GROUP COMMON STOCK 22160N109 134,673 -275 -0.20 27,104 1.52 0.0301
2015-05-06 2015-03-31 13F COSTAR GROUP COMMON STOCK 22160N109 134,948 134,948 0.00 26,697 0.0285
2015-02-05 2014-12-31 13F COSTAR GROUP COMMON STOCK 22160N109 0 -1,948 -100.00 0 -100.00
2014-11-04 2014-09-30 13F COSTAR GROUP COMMON STOCK 22160N109 1,948 -6,289 -76.35 302 -76.82 0.0003
2014-08-05 2014-06-30 13F COSTAR GROUP COMMON STOCK 22160N109 8,237 -3,804 -31.59 1,303 -42.06 0.0013
2014-05-05 2014-03-31 13F COSTAR GROUP COMMON STOCK 22160N109 12,041 1,001 9.07 2,249 10.35 0.0023
2014-02-11 2013-12-31 13F COSTAR GROUP COMMON STOCK 22160N109 11,040 -6,480 -36.99 2,038 -30.73 0.0021
2013-10-29 2013-09-30 13F/A-1 COSTAR GROUP COMMON STOCK 22160N109 17,520 -6,715 -27.71 2,942 -5.95 0.0033
2013-08-13 2013-06-30 13F COSTAR GROUP COMMON STOCK 22160N109 24,235 24,235 3,128 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.